query stringlengths 8 1.13k | pos stringlengths 13 1.09k | neg stringlengths 11 1.07k | query_lang stringclasses 32
values | __index_level_0__ int64 41 1.05M |
|---|---|---|---|---|
Electronic energy dissipation in chloro-aluminum phthalocyanine/methanol system following nonlinear interaction with a train of picosecond pulses | Using the Z-scan technique, we study the nonlinear interaction of a dilute methanolic solution of chloro-aluminum phthalyocyanine with a ∼70 ns long train of laser pulses, each of 18 ps duration. The observations are explained by taking into account, in addition to the photoexcitation of a ground state molecule by a si... | An approach for modeling of planar microwave filters by the Method of Lines (MoL) is presented. The algorithm combines 2-D discretization of the cross-section with the numerically stable impedance/admittance transformation. To improve accuracy and efficiency of this approach, edge conditions are examined and the best e... | eng_Latn | 7,785 |
Screening charge distribution in pockels readout optical modulators | A voltage is applied through semitransparent electrodes on either side of the structure and then the photoconductor is explosed to light. The photocarriers drift to the photoconductor-dielectric interface under the influence of the applied external field. As a result, an interface charge distribution corresponding to t... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 7,793 |
Amplitude range analysis of otolithic organ responses. | Benign paroxysmal positioning vertigo is easily diagnosed with the Dix-Hallpike maneuver. It is an ideal clinical condition in which to study the electrical response of the inner ear with electrocochleography techniques. Responses can be recorded during head tilt in roll and in pitch. With this technique we found that ... | An improved model of an optical phase-locked loop (OPLL) is presented. Based on this model and rate equations of an external cavity semiconductor laser, the effects of OPLL feedback on the FM noise and the AM noise of the external cavity semiconductor laser are discussed. A new linewidth formula of the local laser is d... | eng_Latn | 7,805 |
Labetalol steady-state pharmacokinetics in hypertensive patients. | Abstract ::: 1 During chronic treatment of hypertensive patients observed mean steady-state plasma labetalol levels in ten patients were consistently and significantly higher than predicted from initial acute pharmacokinetic analysis. ::: ::: 2 Mean steady-state levels varied from 36 to 183 ng/ml on a chronic dose of 2... | An experimental study on wavelength stability of laser diode(LD) was presented,which was based on the wavelength-temperature relationship.An ultrahigh wavelength stabilization was designed by adopting a new integrated semiconductor LD module with a wavelength-monitor.There have no use for other additional devices in th... | eng_Latn | 7,807 |
Anticorrelated bidirectional output of quasistadium-shaped semiconductor microlasers | Time-domain properties of the output from quasistadium-shaped microcavity semiconductor lasers are studied. Ring modes generating a bidirectional output are selectively excited by partial pumping. We observe a high anticorrelation between the two beams output from the ring modes. This can be considered as the generaliz... | Abstract We derive semiclassical equations for a single-mode laser operating between a bound state and an autoionizing resonance. We study its steady state properties, find intensity-dependent frequency pulling effects, bistability and, in a certain sense, inversion-less operation. | eng_Latn | 7,810 |
Refractive management of ametropia | Clinical Analysis and Management of Ametropia Myopia Hyperopia Astigmatism Anisometropia Low Ametropias Presbyopia Glossary | We study the photorefractive self-action of light beams within an iron-doped planar optical waveguide in lithium niobate biased by external electric field, to find the conditions for the formation of quasisteady-state screening-photovoltaic spatial solitons. Their formation is expected to take much shorter time compare... | eng_Latn | 7,818 |
The first demonstration of an optically steered microwave phased array antenna using true-time-delay | The concept of true-time-delay steering for phased array antennas and its advantage over phase shifters in broadband applications are described with particular emphasis on the potential advantages offered by fiber-optic delay lines. The system architecture of the phased array antenna and the design and performance of t... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 7,821 |
MWIR and LWIR megapixel QWIP focal plane arrays | A mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) 1024x1024 pixel quantum well infrared photodetector (QWIP) focal plane array has been demonstrated with excellent imagery. MWIR focal plane has given noise equivalent differential temperature (NETD) of 19 mK at 95K operating temperature with f/2.5 opt... | OBJECTIVE ::: To establish a new method to discriminate Aaron's beard by Fourier transformation infrared spectrometry. ::: ::: ::: METHODS ::: Attenuation Reflection-Fourier transformation infrared spectrometry with clustering analysis was used to the identification of Aaron's beard. ::: ::: ::: RESULTS ::: There were ... | eng_Latn | 7,825 |
The study of SiH_4/N_2 gas discharge plasma with LIF | Mixed SiH4/N2 gas radio-frequency (RF) discharge plasma has been studied with laserr induced fluorescence (LIF). The intermediate species Si2 has been detected, and detection of Si2 in SiH4 RF discharge decomposition has not been reparted before. | Based on the small gain approximation in the unsaturated regime in this paper we present the derivation and the evaluation of the spectral optical gain, spectral noise figure and spectral quality factor on single and double pass configuration Er3+-doped LiNbO3 waveguide amplifier pumped near 1484 nm. The simulations sh... | eng_Latn | 7,829 |
Curve Design of Stepper Motor and Simulation | In this paper,a control model of stepper motor after studying on its three phases hybrid drive was set up, and the potential relation between the motor speed curve and its motion performance in a real drive system was found out.Then the optimization control of precise and fast orientation of the stepper motor was given... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 7,836 |
High speed drilling of thin silicon wafer by UV laser | Drilling rate of thin silicon wafer of 50µm was investigated as a function of diameter and fluence by using KrF excimer laser. The drilling rate at constant fluence increases rapidly with decreasing beam diameter below 20µm, reaching approximately up to 4µm/pulse at diameter of 7µm. Melt ejection is the predominant mec... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 7,877 |
Line tunable visible and ultraviolet laser | A novel method of making a line tunable, visible and near ultraviolet, laser source is proposed and ::: demonstrated. It requires only a single laser and 2 nonlinear crystals. It can produce outputs with ::: wavelengths that cover much of the spectrum from 0.26 to 0.67 mm. | The mathematical representation of modulation coefficient and intrinsic phase delay of PZT fiber-optic phase modulator are given. To study the temperature character, this paper design two measure system with a Mach-Zehnder and a Sagnac interferometer and get the experimental result curve which show that both parameters... | eng_Latn | 7,880 |
Lasing from autoionization resonance | Abstract We derive semiclassical equations for a single-mode laser operating between a bound state and an autoionizing resonance. We study its steady state properties, find intensity-dependent frequency pulling effects, bistability and, in a certain sense, inversion-less operation. | Abstract The possibility of the generation of a megagaus magnetic field in a plasma, creating at atom tunnel ionization in a high-power laser radiation field has been predicted. | eng_Latn | 7,883 |
Implantation of Organic Molecules into Biotissue by Pulsed Laser Irradiation | Zinc tetraphenyl porphyrin (ZnTPP) molecules were implanted into a piece of chicken skin by irradiation with KrF laser pulses. The study of the implanted ZnTPP at the skin surface using a fluorescence microscope indicated that the molecules are space-selectively introduced at the irradiated area. | We present optically pumped lasing from group IV GeSn/SiGeSn heterostructures. A comparison between double heterostructure and multi-quantum-well microdisk cavities reveals advantages of the multi-well design. Strongly reduced lasing thresholds compared to values from bulk devices are observed. | eng_Latn | 7,892 |
Adaptive Equalization for SQPSK and SQPR Over Frequency Selective Microwave LOS Channels | This paper compares the effectiveness of linear and decision feedback equalizers in counteracting the effect of frequency-selective distortion in microwave relay links. A quadratic frequency-selective model of the channel is employed and particular attention is given to channels with a null in the passband. Both stagge... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 7,913 |
Passive remote sensing technology for mapping bull kelp (Nereocystis luetkeana): A review of techniques and regional case study | Abstract The distribution and abundance of the canopy-forming kelp Nereocystis luetkeana is of increasing concern for environmental management and conservation in coastal regions due to its importance as a foundation species. Mapping kelp forests aids in understanding their health, productivity, and response to environ... | For many years it has been assumed that nonradiative recombination plays a dominant role in determining the high temperature performance of long wavelength laser diodes. We show that this view is inconsistent with the measured temperature dependence of spontaneous emission from light emitting diodes. We conclude that n... | eng_Latn | 7,914 |
Three-dimensional skin imaging using the combination of reflected confocal and multiphoton microscopy | Reflected confocal microscopy has been widely used in clinical application in dermatology. In recent years, ::: multiphoton microscopy has also emerged as an important minimally invasive bioimaging technique for the skin. In this ::: study, we combine reflected confocal microscopy and multiphoton microscopy for skin im... | Conventional microwave transversal filters are hindered by bandwidth limitations and cannot provide long-time delays due to excessive propagation losses. Optical transversal filters lack the means to provide negative weighting coefficients. Therefore, a hybrid transversal filter that utilizes low loss, wide bandwidth o... | eng_Latn | 7,921 |
Nonvolatile phase change memory nanocell fabrication by femtosecond laser writing assisted with near-field optical microscopy | The phase change memory cells were developed by using a combination system of a femtosecond laser with near-field scanning optical microscopy. The memory cells with feature size varying from 800nm down to 90nm were achieved. The cell functional performances were tested, and the scalability of the programming current as... | Adopting a nonlinear dynamical system analysis point of view, we discuss the design of a low-complexity CMOS electronic circuit implementing a Physically Unclonable Function core module based on a two-neurons Cellular Neural Network. The study follows a theoretical approach investigating the circuit topology, aiming at... | eng_Latn | 7,927 |
Pulsed electrical operation of 1.5-μm vertical-cavity surface-emitting lasers | Vertical cavity surface emitting lasers operating in the 1.3- and 1.5-/spl mu/m wavelength ranges are highly attractive for telecommunications applications. However, they are far less well-developed than devices operating at shorter wavelengths. Pulsed electrically-injected lasing at 1.5 /spl mu/m, at temperatures up t... | This study compared ultrasonic and laser measurements of citrus canopy volume with manual measurement ::: methods. Fifteen trees with different canopy heights and volumes were used. Manual and ultrasonic measurements provided ::: dimensions for computing the canopy volume whereas laser measurements gave information tha... | eng_Latn | 7,944 |
Focusing limits of intense ultrafast laser pulses in a high pressure gas : road to new spectroscopic source | As a result of focusing ultrafast Ti:Sapphire laser pulses in a gas, a plasma column is created. Its density does not exceed some limiting value as a result of the defocusing by the electrons resulting from multiphoton ionization and the involvement of high order nonlinearities. The spectrum of the radiation from the e... | We present a detailed study of the optical trapping and manipulation of nanoparticles with complex permittivity using an apertureless near-field probe. We use a three-dimensional, self-consistent description of the electromagnetic scattering processes that accounts for retardation and the intricate many-body interactio... | eng_Latn | 7,946 |
Sputter ion pump element pumping speed measurement with the help of a Monte Carlo code | As part of the design of the vacuum system of a new Synchrotron Light Source for Brazil – SIRIUS, the Vacuum Group from the Brazilian Synchrotron Light Laboratory (LNLS) proposed the pumping speed study of a sputter ion pump element assembled inside the vacuum chamber. This configuration aims to reduce components attac... | Abstract The Fibre-Injection System in the LIL–LMJ facilities makes use of a single-mode fiber based arborescent architecture. Starting from a unique single-mode oscillator, it consists of a high performance PM design which is dedicated to the generation of pulses onto a large number of synchronous outputs. The optical... | eng_Latn | 7,949 |
Photon echo in the ensemble of semiconductor quantum dots spread on a glass substrate | Simple procedure to prepare samples containing semiconductor quantum dots was developed. Test photon echo measurements in the ensemble of quantum dots spread on a glass substrate were performed to study optical dephasing processes. | With the development of all-optic network, the hotspot of the research is moving from the backbone network to the metropolitan network, and then to the access network. Much attention has been paid on reducing the cost in these networks. One approach is to adopt Ethernet passive optical network (EPON) architectures in a... | eng_Latn | 7,950 |
LASSO tuning parameter selection | The LASSO is a penalized regression method which simultaneously performs shrinkage and variable selection. The output produced by the LASSO consists of a piecewise linear solution path, starting with the null model and ending with the full least squares fit, as the value of a tuning parameter is decreased. The performa... | -We describe a simple method to generate wavelength-tunable pulses by using a semiconductor optical amplifier (SOA) as an intensity modulator and a gain medium. Wavelength tunable pulses at a repetition rate of 4.8 GHz have been generated. | eng_Latn | 7,960 |
Design And Optimization Of Planar Waveguide Magic Tee At W-band | Conventionally, the sum and difference signals of a tracking system are fixed up by sum and difference network and the network is often composed of four or more magic tees whose arms direct at four different directions, which give inconveniences to assemble. In this paper, a waveguide side-wall slot directional coupler... | Using ultrafast optical-pump terahertz-probe spectroscopy, we study the THz dynamics and electronic cooling in few-layer epitaxial and CVD graphene; a microscopic theory of carrier-carrier and carrier-phonon interactions accounts quantitatively for the observed dynamics. | kor_Hang | 7,965 |
Gain Narrowing in Few-Atom Systems | Using a density matrix approach, we study the simplest systems that display both gain and feedback: clusters of 2 to 5 atoms, one of which is pumped. The other atoms supply feedback through multiple scattering of light. We show that, if the atoms are in each other's near field, the system exhibits large gain narrowing ... | This paper analyses the causationes that influence the precision of the weighing system.Introduces the characteristics of the chip ADS1230 and designing of hardware circuit in weighing system.This design uses the most extensive and mature technology AT89C51 chip microcontroller and the resistance strain weighing sensor... | eng_Latn | 7,977 |
Soft X-ray Streak Camera with Dynamic Range of 2000 and Picosecond Temporal Resolution | A new streak camera with more wider dynamic range and picosecond temporal resolution for soft X-ray was developed.The photocathode′s working area is 30 mm in diameter,and its focusing voltage is reduced to 8 kV to prevent electrical discharge.A post-accelaration system was introduced into the image tube for improving t... | We show that one can optically control the photoresponse of semiconductor devices by the phase of the EM incident radiation. This can be achieved by interfering two phase-locked quantum pathways, both projecting the same initial bound state to the same energy level in the continuum. An experimental study on quantum wel... | eng_Latn | 7,987 |
Overlapping Discs Filtration in the Commutative Operad | The spaces of configurations of non-$k$-overlapping discs have been studied as a bimodule over the little discs operad. In fact, the spaces form a filtered operad. We define and study the induced structure on the homology. | Concatenated optical coding provides channel grouping ability on OCDM networks. With the 16-chip optical code concatenating two 4-chip Fourier codes, selection of a channel in sixteen or a code group in four is experimentally demonstrated. | eng_Latn | 7,988 |
Self-adaptive thermal-lensing compensation for a high-power laser | In this study, we present the analytic temperature profile in cylindrical geometry for transmissive optics. The model permits the explicit calculation of the optical path length difference across the radial direction of a rod. This allows us to determine the specific length of the compensation material to remove the th... | -We describe a simple method to generate wavelength-tunable pulses by using a semiconductor optical amplifier (SOA) as an intensity modulator and a gain medium. Wavelength tunable pulses at a repetition rate of 4.8 GHz have been generated. | eng_Latn | 7,994 |
Phase sequence construction for near optimum SLM | High Peak-to-Average Power Ratio (PAPR) is a major drawback of multicarrier transmission systems such as OFDM. Among various techniques proposed for PAPR reduction, SeLective Mapping (SLM) is a stochastic approach with the potential to achieve maximum PAPR reduction via phase optimization. In this paper, a measurable c... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 8,022 |
Hot‐carrier light emission from silicon metal‐oxide‐semiconductor devices | Light emitted from energetic electrons and holes near the drain region of Si field‐effect transistor devices is measured spectrally resolved in the important energy range about the band gap. Using a sensitive Ge detector we examine the spectral range from 0.75 to 1.55 eV in order to identify and study the recombination... | The computer controlled Laserthermia system by the method of using double ::: channel endoscope with the contact frosted probe and a thermocouple was reported ::: previously.25 In this paper, the single channel method with the new single ::: laser delivery system was studied experimentally. Especially hyperthermal effe... | eng_Latn | 8,027 |
Highly efficient generation of entangled photon pair by spontaneous parametric downconversion in defective photonic crystals | We study the process of spontaneous parametric downconversion in a one-dimensional defective quadratic nonlinear photonic crystal. It is shown that the strong confinements of both the pump and signal waves around the defective layer result in a giant enhancement of the entangled photon-pair generation. An enhancement f... | Image segmentation is an important problem of digital image processing and also a common difficult problem. In this paper, a new image thresholding method based on parzen-window estimation and Renyi entropy is proposed. The method used Parzen-window technology to estimate the spatial probability distribution of image g... | eng_Latn | 8,032 |
On the $\sigma_L/\sigma_T$ Ratio in Polarized Vector Meson Photoproduction | We study the spin-dependent cross-sections of vector meson photoproduction for longitudinally and transversely polarized photons within a QCD- model. The dependence of the $\sigma_T/\sigma_L$ ratio on the photon virtuality and on the meson wave function is analysed. | Digital signal processors have made it possible to control scanned probe microscopes using straightforward software emulations of analog circuits. Using a system consisting of a commercially available digital signal processor board interfaced to analog I/O, we have developed algorithms for self‐optimizing feedback, ras... | eng_Latn | 8,038 |
Phase-Controlled Photocurrents in Semiconductors | We show that one can optically control the photoresponse of semiconductor devices by the phase of the EM incident radiation. This can be achieved by interfering two phase-locked quantum pathways, both projecting the same initial bound state to the same energy level in the continuum. An experimental study on quantum wel... | Multilevel Conversion systems have certain advantages that can be applied in renewable energy systems. To verify that advantages we are developing a re-configurable 1 kW prototype. Among the experiments that we have considered, a sliding mode control law can force this converter to behave like an AC Current Source. We ... | eng_Latn | 8,040 |
Tunable SERS in Gold Nanorod Dimers through Strain Control on an Elastomeric Substrate | In this Letter we provide experimental verification of the interparticle distance dependence of the SERS enhancement factor in 1 μm gold gapped nanorods. Au dimers are fabricated from electrochemically grown heterogeneous Au−Ag−Au nanorods and deposited on a stretchable elastomer film which allows active and reversible... | We present what is to our knowledge the most complete 1-D numerical analysis of the evolution and the propagation ::: dynamics of an ultrashort laser pulse in a Ti:Sapphire laser oscillator. This study confirms the dispersion ::: managed model of mode-locking, and emphasizes the role of the Kerr nonlinearity in generat... | eng_Latn | 8,048 |
Early generation identification and utilization of potential inbred lines in modified single cross hybrids of maize (Zea mays L.) | The essential pre-requisite for commercial production of single cross maize hybrids is the development of vigorous high yielding inbred parents. A modified form of Forward and Reverse Inbreeding Process (FRIP) [1] was used to develop modified single cross hybrids. This method involves inbreeding using selfing in the ea... | Publisher Summary The field of kinship appears to have a greater resilience to political and economic forces that change lifestyles and life opportunities. The “modernization” literature stressed the inevitable demise of matrilineality and of extended kinship groupings with the rise of cash-crop economies, occupational... | eng_Latn | 8,509 |
Parenting and Homeless: Profiles of Young Adult Mothers and Fathers in Unstable Housing Situations | Young adults who are pregnant or parents are a vulnerable subgroup of the homeless population, yet there is limited research about their specific service needs. To fill this gap, we used data from a survey of homeless and unstably housed young adults, ages 18–24, collected over 4 weeks in Houston, Texas, to examine the... | This article is the second of two parts. The first one was published in the issue no 2 of this same journal. The preseni study uses the dependency index and the youth ratio to describe the aging process both at regional and municipal levels. Our data show a yet moderate aging process in (he region. with an uneven distr... | eng_Latn | 8,510 |
Sex status is one of the basic causes of such differences in roles to be performed by males and females separately. Pakistani society is also following this universal pattern of differentiated sex-roles and status. The underlying concept of this is the superiority of men as compared to women. This study focused on prob... | This paper overviews socio-economic factors as determinants of working women earnings in education department of district Peshawar Khyber Pakhtunkhwa. For this purpose, a primary data was collected through a structured questionnaire from 126 working females in September, 2017. Multinomial logistic regression technique ... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 8,569 |
Thank you very much for reading winnicott and good enough couple therapy reflections of a couple therapist. Maybe you have knowledge that, people have look numerous times for their chosen books like this winnicott and good enough couple therapy reflections of a couple therapist, but end up in infectious downloads. Rath... | ABSTRACTThe current study uses an initial intake interview as an assessment tool in the Supporting Father Involvement (SFI) intervention and considers it from a family systems theoretical perspective. SFI includes a 32-hour group for parents with young children that aims to reduce child abuse and promote family well-be... | The paper presents explicit formulas for the reflection coefficient of a broadband matching Chebyshev equalizer, satisfying Youla's coefficient constraints. The results are very important in that they provide the missing links permitting computation of element values for Chebyshev equalizers of any order. | eng_Latn | 8,586 |
Children's Role in Generating Social Capital | Using data from the 500 Family Study, this study examines how adolescents contribute to their families' social capital. An instrumental variable model reveals that adolescents' social involvement has a positive effect on social support from sources outside the family, suggesting that parents connect to other parents in... | XI 1: Introduction 1 1.1 Background 1 1.1.1 Childhood injuries – the New Zealand context 3 1.2 Statement of the Problem 3 1.3 Statement of Purpose 5 1.3.1 The context for the study 5 1.3.2 State research question 6 1.3.3 Study aims 6 1.4 Significance of Research 7 1.4.1 Potential benefits to childhood research 7 1.4.2 ... | eng_Latn | 8,592 |
The Association Between Family Flexibility, Food Preoccupation and Body Image Among Crystal Abuser Women | Background ::: Methamphetamine (MA) is a highly addictive stimulant which has destructive effects. There is also evidence that methamphetamine use in some females, partly is due to their desire to lose weight. The purpose of this study was to determine the association between family flexibility, food preoccupation and ... | This article mainly introduces the contemporary changes in Chinese family and especially analyses the transformation of family structure and type, family housing conditions, family relationship network, the relationship between husband and wife and parenthood. In addition, it discusses the influence of family changes i... | eng_Latn | 8,593 |
New trends in teacher’s education. Educational placement of the adopted child | Abstract In Italy, the number of adopted school-age children is increasing. According to the Commission of Intercountry Adoption (2013), 3106 children were adopted, 47.5% of them are between 5 and 9 years old. The present action-research aims at exploring the spread of good approaches in schools in terms of welcoming o... | Whether the existing adjunct attachment hypothesis and models apply to Chinese English learners is unknown and it needs further research.This study chooses 49 college students randomly to do the ambiguous sentences processed by using Tobii T-120.The research shows the eye movement traces and oral report results,and bot... | eng_Latn | 8,595 |
Demographic, Situational, and Shopping Comparisons of Hispanic and Non-Hispanic Mall Patrons: | This study compares Hispanic and Anglo patrons of an upscale mall. The Hispanic respondents were younger, with higher household incomes, than the non-Hispanics. Fewer of the Hispanics, however, had college educations. There were significant differences in situational variables associated with the two groups. Although t... | As a kind of purchasing decision making subject,family is a very special organization.The internal role structure vicissitude of Chinese Urban Family is obvious during social and economic double transformation period.Take three medium-size urban family for example,our survey indicated not only marital roles in the fami... | eng_Latn | 8,604 |
Adult Children as Caregivers: Egocentric Biases in Judgments of Sibling Contributions | This study examined filial caregivers' views of their own and their siblings' costs and contributions to the care of their parents. The respondents viewed their siblings' responses to the parents' needs as remarkably similar to their own, in spite of there being no actual similarity. Despite these perceived similaritie... | The article discusses approaches to aspects of place and ::: identity in three late twentieth century British novels, The ::: Child in Time, City of the Mind, and Mother London in relation ::: to aspects of perspectives in urban geography on social and ::: urban development in 1980s London. | eng_Latn | 8,606 |
Does use of power affects relationship's social satisfaction in manufacturer-dealers relationship? | Managing the channel relationship is a key concern in manufacturer-dealer relationship.This study investigates the automobile dealers’ relationship satisfaction and perceptions on supplier’s use of power.Despite the assumption that relationship satisfaction contributes to buyer-supplier relationship, previous researche... | Traditional models in the agricultural labor literature have examined agricultural labor supply in terms of a labor-lei sure trade-off by a single individual. This work examines the question of total annual market days in farm and nonfarm work of secondary family workers engaged in hired farm work. The underlying model... | eng_Latn | 8,609 |
On college student credit and moral education | Credit is the basis of all moral character and is the cornerstone for society to exist and develop. College student credit and moral education is the important component of moral work of higher learning. Correct analysis and comment on college students' credit and moral behavior is the key to making countermeasures and... | This study examined whether culture moderated the associations between Chinese and European American undergraduates’ perceptions of parental warmth and negativity, and how these perceptions predict... | eng_Latn | 8,612 |
Family and Work Values of Adolescents in Secondary Schools | The study investigated the relationship between the family and work values of adolescents in Ekiti and Ondo States, in Nigeria. The family is assumed to play a vital role in the formation of work values of the adolescents. How far this is true is the subject of this research paper. A total of 500 students consisting of... | Existing post-occupancy research rarely considers the importance of the sociality of the building user community and its building user group dynamics. A social value agenda is proposed to promote u ... | eng_Latn | 8,614 |
Cross-Cultural Issues in ParentProfessional Interactions: A Qualitative Study of Perceptions of Asian American Mothers of Children With Developmental Disabilities | This study investigated the perspectives of 23 first-generation Asian American mothers of children with developmental disabilities. The intent was to explore the working relationships between the m... | The earthquake at Wenchuan caused big psychological interference.This paper discusses the theory of evaluation and intervention of psychological crisis.The author sets forth some intervention methods of psychological crisis. | eng_Latn | 8,621 |
Sex and parenting: the effects of sexual conflict and parentage on parental strategies | Abstract There is perhaps no more popularized aspect of animal behavior than the things parents do for offspring. Yet our understanding of the evolution of care is only rudimentary, perhaps because parental behavior is one of the most variable behavioral traits we know. Sexual reproduction, particularly in anisogamous ... | Two approaches to the study of the psychological significance of situations were compared, one using data for individuals' perceptions of situations and the other using data for individuals' reactions to situations. Perception and reaction data for 40 subjects were used for multidimensional classification of 12 situati... | eng_Latn | 8,623 |
Freedom, desire and power: Gender processes and presumptions of shared care and responsibility after parental separation | Synopsis This paper reports the findings of a small empirical study of separated couples who share the care of their children in a fifty-fifty arrangement of time. The study is set against a backdrop of family law reform in Australia over the past decade which has shifted legal and custodial frameworks towards a presum... | This article is the second of two parts. The first one was published in the issue no 2 of this same journal. The preseni study uses the dependency index and the youth ratio to describe the aging process both at regional and municipal levels. Our data show a yet moderate aging process in (he region. with an uneven distr... | eng_Latn | 8,627 |
Parent-research as a process of inquiry: an ethnographic perspective | This article illustrates how an ethnographic perspective can provide a descriptive methodological approach to parent-research as a process of inquiry within the field of education. By juxtaposing data and illuminating reflexive accounts from a longitudinal parent-research study, I suggest that such a perspective provid... | I was raised in a Protestant family from the middle of the sixties until the early eighties of the last century in a small village close to Amsterdam. Although my parents had different religious backgrounds, my mother’s relatively liberal Protestant views were dominated by my father’s orthodox Calvinist faith. His view... | eng_Latn | 8,629 |
Summary on the Latest Development in the Research Home and Abroad on Family Enterprise | Based on the study and analysis of essays on family enterprise research home and abroad, the paper summarizes the latest results found in this research area, which offers definitions and relevant theories about the family enterprise, the studies on the hierarchy or management structure as well as changes and evolution ... | This article gives a brief description on current status of state-owned listed company equity incentive system and reviews the policy reformations of that,the system environment on legal basis、implementation procedure and disclosure、accounting treatment and tax return and so on of state-owned listed company equity ince... | eng_Latn | 8,635 |
Chinese and European American Undergraduates’ Perceptions of Maternal Warmth and Negativity as Predictors of Self-Esteem and Life Satisfaction | This study examined whether culture moderated the associations between Chinese and European American undergraduates’ perceptions of parental warmth and negativity, and how these perceptions predict... | This paper reports on the ways in which a selected group of parents in Vietnam decided which university one of their children should attend. Drawing upon narrative accounts provided by 16 parents of recent graduates from three universities in Hanoi, the paper seeks to elucidate the kinds of considerations taken into ac... | eng_Latn | 8,636 |
ENRICHMENT OUTCOME RESEARCH:A META‐ANALYSIS OF PREMARITAL, MARITAL AND FAMILY INTERVENTIONS | The findings from a meta-analysis of 85 studies of premarital, marital, and family enrichment, representing 3,886 couples or families are presented. Metaanalysis is a method for statistically aggregating and evaluating empirical findings. Findings from the study are discussed in terms of overall enrichment effectivenes... | There are negative consequences for children and youth when a primary caregiver leaves to migrate. However there are unforeseen experiences related to schooling. I compare how Mexican maternal migration has influenced the education experiences of the children left behind in Mexico and their siblings living in the Unite... | yue_Hant | 8,642 |
Familia Faber: The Family as Maker of the Future. | The concept familia faber focuses on families as makers of social reality, constructors of the future social order, as doers and shapers. The family is more often thought of as product or victim of change than as producer and instigator. Sociological tradition from Durkheim and Simmel to Peter Berger, which is oriented... | Personal distribution of well-being of farm families relative to all U. S. families is substantially improved when wealth is considered along with money income. The "live poor and die rich" paradox facing older farm families could often be overcome by providing an easier means whereby they could use up equity in family... | eng_Latn | 8,645 |
What are some time periods that family communication study looks at? | Family communication study looks at topics such as family rules, family roles or family dialectics and how those factors could affect the communication between family members. Researchers develop theories to understand communication behaviors. Family communication study also digs deep into certain time periods of famil... | Social conflict and the development of technologies can produce changes within a society by altering social dynamics and promoting new cultural models, and spurring or enabling generative action. These social shifts may accompany ideological shifts and other types of cultural change. For example, the U.S. feminist move... | eng_Latn | 8,689 |
what does a theoretical model/treatment mean | While Family Centered Treatment integrates elements of several evidence-based theoretical models, two in particular form its foundation: Eco-Structural Family Therapy and Emotionally Focused Therapy. | theoretical foundations meaning, theoretical foundations definition | English Cobuild dictionary. theoretical. 1 adj A theoretical study or explanation is based on or uses the ideas and abstract principles that relate to a particular subject, rather than the practical aspects or uses of it. ...theoretical physics. | eng_Latn | 8,795 |
what is attachment | home / study / social sciences / psychology definitions / attachment. Attachment is a strong emotional connection, such as the bond between a child and caregiver. In psychology, the concept of attachment helps explain development and personality. In the 1950s, research by Harry Harlow suggested that baby monkeys (and, ... | By Kendra Cherry. Updated June 14, 2016. Attachment theory is focused on the relationships and bonds between people, particularly long-term relationships including those between a parent and child and between romantic partners. | eng_Latn | 8,797 |
family consumer definition | A Home Economics instructor giving a demonstration, Seattle, 1953. Family and consumer sciences (FCS) is the profession and field of study that deals with the economics and management of the home and community. It is also known as home economics or home science (depending on the country). | Family literacy is a term used to describe parents and children-or more broadly-adults and children-learning together. | eng_Latn | 8,798 |
Metal-enhanced fluorescence from CdTe nanocrystals: a single-molecule fluorescence study. | Plasmonic Molecular Nanohybrids—Spectral Dependence of Fluorescence Quenching | Genomic evidence for the absence of a functional cholesteryl ester transfer protein gene in mice and rats. | eng_Latn | 8,870 |
Theoretical study of the sensor design strategy for colorimetric sensor array based on density functional theory | A Novel Nanoscaled Chemo Dye–Based Sensor for the Identification of Volatile Organic Compounds During the Mildewing Process of Stored Wheat | No Detectable Broad-Scale Effect of Livestock Grazing on Soil Blue-Carbon Stock in Salt Marshes | eng_Latn | 8,934 |
Photoelectron characteristic of silver chloride microcrystals adsorbing dye excited by laser | Electro‐spin resonance study of positive holes in J‐aggregates of a cyanine dye on AgBr microcrystals: Effect of aggregate size | High-affinity glucose uptake in Saccharomyces cerevisiae is not dependent on the presence of glucose-phosphorylating enzymes | eng_Latn | 8,935 |
[1.1](3,3')-azobenzenophane: novel crystal structure and cis-trans isomerization of distorted azobenzene. | Triptycene-Derived Photoresponsive Fluorescent Azo-Polymer as Chemosensor for Picric Acid Detection | Checking for completeness of 24-h urine collection using para-amino benzoic acid not necessary in the Observing Protein and Energy Nutrition study | eng_Latn | 8,942 |
We report a novel method to form a circular pattern of monodisperse microdroplets using an electrohydrodynamic repulsion (EDR) mechanism. EDR is a phenomenon of electrostatical bounced microdroplets from an accumulated droplet on a bottom substrate. In addition to a regular EDR system, by placing a ring electrode betwe... | Isolated droplets can be used as micro-reactors, yet it is challenging to operate them functionally in solution and observe chemical exchanges between droplets. Here, Tian et al. use an acoustic trap to assemble water-based micro-droplets into periodic arrays, spontaneously separated from solution media. | Background ::: No residual disease (NRD) can be found in the specimen after endoscopic resection (ER) of biopsy-proven gastric neoplasm. This study aimed to evaluate the endoscopic and pathologic characteristics of patients with NRD and identify the cause and long-term prognosis. | eng_Latn | 8,944 |
Effects of theophylline on capillary tube leucocyte migration. | Theophylline stimulates the capillary tube migration of human peripheral blood mixed leucocytes. Minor stimulation of polymorph migration is produced directly by theophylline and dibutyryl cyclic AMP, | Properties of liquid crystal materials in THz frequency range can be interesting from application point of view. In this paper the influence of short and long molecules added to liquid crystal 6CHBT were investigated. Change of refractive indices and absorption coefficients for 6CHBT mixtures were compared in the 0.3 -... | eng_Latn | 9,042 |
Automated Video Imaging System for Counting Deep-Sea Bioluminescence Organisms Events | Bioluminescence refers to the production of ecologically functional light by living organisms. It is widespread in the marine environment, where it occurs in a broad range of phyla. The deep pelagic ocean is the largest biome on earth and is chronically under-sampled. Underwater camera systems offer a rapid sampling me... | Organic materials for optical data storage applications is a fascinating and growing field of research [1]. Of special interest are liquid-crystalline polymers (LCPs), especially side chain polymers [2]. They have been proposed as optical recording media by many authors [3–6]. | kor_Hang | 9,047 |
Analyte capture in microfluidic heterogeneous immunoassays | Despite the prevalence of microfluidic-based heterogeneous immunoassays, there is incomplete understanding of analyte capture parameters. This study presents computational results and corresponding experimental binding assays of analyte capture. Our results identify: 1) a “reagent-limited” regime, under constraints of ... | An inexpensive circuit designed for polarographic measurement of dissolved H2 over a wide concentration range is described. Examples of its application to measurements of hydrogenase and nitrogenase activities are presented. | eng_Latn | 9,050 |
Dielectric properties of α-d-glucose aqueous solutions at 2450 MHz | Abstract Using a cavity perturbation technique, dielectric properties of α- d -glucose aqueous solution at 2450 MHz were measured at concentrations ranging from 10 to 60% in the temperature range of 0–70 °C. Dielectric constant increases with temperature in a quadratic manner while linearly decreasing with glucose conc... | Abstract Polyacrylamide gel electrophoresis in discontinuous buffer systems often gives very narrow zones. This technique involves some disadvantages, however, which are discussed. Although our experience so far is rather limited, it would indicate that the resolving power is independent of whether a continuous or disc... | eng_Latn | 9,067 |
Applications of Morpho-Butterfly's Strange Blue based on Nano-Randomness | Structural color of some blue Morpho butterflies has a physically mysterious feature from viewpoint of optics. We have recently proven the principle of the mystery by fabricating the specific structures by extracting the physical essence. The key was exquisite combination of both regular and irregular structures at nan... | As a result of the first study on secondary metabolites from the cosmopolitan bioluminescent marine tube polychaete Chaetopterus variopedatus, a new bicyclic guanidine alkaloid, 6-epi-monanchorin (1), along with the previously known monanchorin (2) were isolated. The structure of 1 was elucidated by... | eng_Latn | 9,081 |
Fast and precise subthreshold slope method for extracting gate capacitive coupling coefficient in flash memory cells | A fast and precise subthreshold slope method for extraction of gate capacitive coupling coefficient is substantially confirmed by experimental data from three types of flash memory cells: stacked gate, sidewall source-side injection (SSI), and split-gate cells. This new method furnishes promising potentials: (i) it can... | Abstract Peptide and protein samples are often complex mixtures that contain a number of individual compounds. The initial HPLC separation of such samples typically results in the poor resolution of one or more band pairs. Various means have been suggested tor varying separation selectivity so as to minimize this probl... | eng_Latn | 9,084 |
A CCD spectrophotometer to quantitate the concentration of chromophores in living tissue utilising the absorption peak of water at 975 nm. | Optical spectroscopy has long been used to study the oxygenation of living tissue in-vivo. It is possible to detect concentration changes of naturally occurring chromophores whose absorption spectra are affected by the presence of oxygen, such as haemoglobin and the cytochrome enzymes. | A tunable wavelength filter was proposed and demonstrated by using the ultraviolet nanoimprint technique. It consists of a Bragg grating in polymer waveguides and a heating electrode. The creation of the grating was substantially simplified with the introduction of a smart imprint stamp containing a waveguide pattern i... | eng_Latn | 9,085 |
Fluorescence of substituted aromatic derivatives crystalline materials for optical nonlinear applications | Our fluorescence study gave information on the presence of chemical defects and irregularities in crystal structure, offering a good tool for quality evaluation of organic crystalline materials. We have analyzed the correlation between the bulk or thin film samples' quality determined by experimental parameters (therma... | The aim of this study was to determine the basic rheological parameters of dispersed highly concentrated lignite aqueous suspensions. Typical dilatant behavior was observed, where critical parameters of dilatancy were determined for different size fractions and concentrations. To modify the non-Newtonian behavior of th... | eng_Latn | 9,137 |
Length sorting cut single wall carbon nanotubes by high performance liquid chromatography | Semi-preparative, HPLC based, size exclusion chromatography (SEC) was used to length sort single wall carbon nanotubes previously cut by an acid based process. In contrast to prior reports of nanotube length separation by gravity fed SEC, mean nanotube lengths in the present study were shorter than the controlled pore ... | Abstract Peptide and protein samples are often complex mixtures that contain a number of individual compounds. The initial HPLC separation of such samples typically results in the poor resolution of one or more band pairs. Various means have been suggested tor varying separation selectivity so as to minimize this probl... | eng_Latn | 9,162 |
[The chemiluminescence and fluorescence of aromatic amino acids in the presence of iodine]. | Optic characteristics of solutions of aromatic amino acids containing fluorine products were examined by adding iodine solution. Iodine exerted variously directed effects on the intensity of photochemiluminescence of tryptophan, thyrosine, and beta-indolacetic acid solutions. Extinction of the luminescence of beta-indo... | The evolution of atomic de Broglie waves inside strong periodic potentials can be described as channeling and exhibits both particle and wave effects. Using a beam of metastable Argon atoms interacting with an intense standing light wave we detect an interference pattern arising from the coherent guiding of the atoms t... | eng_Latn | 9,170 |
High Specificity Binding of Lectins to Carbohydrate-Functionalized Fiber Bragg Gratings: A New Model for Biosensing Applications | The functionalization of an etched fiber Bragg grating was realized using a carbohydrate-siloxane conjugate. No fluorescent probes were used. Concanavalin A bound with high specificity to the glucose biosensor, but not to the lactose functionalized fiber. Conversely, peanut agglutinin bound to the lactose sensor with h... | Code generation with the Graham Glanville scheme can be improved, using backtracking parsers for attribute grammars. This eliminates semantic and syntactic blocking during code selection and guarantees the cheapest code possible, if desired. Multipass translation allows the use of nontrivial register allocation strateg... | eng_Latn | 9,174 |
Spectroscopic analysis of keratin endogenous signal for skin multiphoton microscopy | We recorded one-photon excited fluorescence (1PEF) and two-photon excited fluorescence (2PEF) spectra of purified keratin from human epidermis, and determined the action cross section of this endogenous chromophore. We used this spectroscopic analysis to analyse multiphoton images of skin biopsies and assign the intrin... | Exact eigenvalues, normalized electronic wavefunctions and their derivatives with respect to the internuclear separation have been calculated for the lowest 20 states 1s sigma , 2s sigma ,...,4f phi of the HeH2+ molecule at internuclear separations 0.1(0.1)20, 20(0.2)80 a0 assuming infinitely massive nuclei. The numeri... | eng_Latn | 9,183 |
A comparative study of compact finite volume methods for the 3-D diffusion equations with finite difference ADI and SOR | Recently developed Compact Finite Difference scheme (CPT) is applied to two dimensional diffusion equations. The relative merits of CPT-ADI are investigated with other computational schemes such as finite difference method ADI (FDM-ADI) and FDM-SOR. The numerical results obtained from these three approaches are compare... | Organic contamination adsorbed on 200 mm silicon wafers was characterized using various analytical techniques. Surface hydrophobicity, apparent optical thickness and electrical surface charge are used to characterize the silicon surface state. They only give information on total organic contamination. MIR-FTIR is very ... | eng_Latn | 9,208 |
Quantitative analysis of molecularly stacked layer structures in supported organic thin films by synchrotron grazing-incidence X-ray scattering | In this study, we derive a grazing-incidence X-ray scattering (GIXS) formula to analyze quantitatively GIXS patterns for molecularly stacked layer structures in substrate-supported nanoscale thin films. We apply this formula in the quantitative analysis of GIXS patterns obtained for S-docosanylcysteine thin films on si... | Refrigeration of the volatile oil of Nigella sativa L. seeds eventuates in a crystalline substance. The chemical structure of the compound was drawn from its chemical behaviour, as well as from its UV, IR, PMR and mass spectral data. The compound was found to be thymohydroquinone: confirmation of the structure was esta... | eng_Latn | 9,211 |
An electrochemical and optical study of the rupture and restoration of the passivating HgO multilayer on a dropping mercury electrode in aqueous 1 M NaOH solution at anodic potentials | It is shown that the passivating layer on the surface of a dropping mercury electrode in 1 M NaOH at anodic potentials due to drop growth continuously is being mechanically ruptured and electrochemically repaired. This phenomenon is studied by means of microscopy, reflectometry and polarography. The latter technique al... | The present invention provides a sealing liquid which does not contain a nickel salt but is capable of achieving a sealing performance equivalent to that in cases where a sealing liquid containing a nickel salt is used, and which enables an anodic oxide coating film sealed therewith to exhibit excellent contamination r... | eng_Latn | 9,212 |
FT-i.r. study of molecular interactions of olefins with oxide surfaces | Abstract The FT-i.r. spectra of ethylene, propylene, 1-butene, cis-2-butene and trans-2-butene adsorbed on amorphous silica at 200 K, on NaY-zeolite at 220 K and on TiO2 at 300 K have been recorded. In such conditions only molecular adsorption is detected, thought to take place on the surface hydroxy groups of silica,... | Frequency offset affects the performance of orthogonal frequency division multiplexing system. The FRFT based OFDM is considered in this article to minimize this affect. The expressions of signal to interference ratio (SIR) due to inter carrier interference (ICI) has been derived for frequency selective fading channel ... | eng_Latn | 9,214 |
Study on Fingerprint Condition of Capillary Electrophoresis in Sarcandra | Objective:To study on fingerprint condition of capillary electrophoresis(CE) in Sarcandra.Method:Study on following effect factors:composite of buffer,the pH of buffer,division voltage,division temperature,injection volume and additive.Results:The buffer was 7.5 mmol·L-1 borat and sodium dihydrogen phosphate solution c... | One snapshot of the peer review process for “Decomposing Cell Identity for Transfer Learning across Cellular Measurements, Platforms, Tissues, and Species” ( Stein-O’Brien et al., 2019 ). | eng_Latn | 9,238 |
[The use of monolaurates for removing endotoxins from preparations of cell-free pertussis vaccine]. | The possibility of using monolaurates for removing endotoxin from acellular pertussis vaccines developed at the Laboratory of Immunomodulators, Mechnikov Research Institute for Vaccines and Sera (Moscow), has been studied. Monolaurates PEG-400 and PEG-600 obtained, respectively, from Fluka Chemie AG and Ferak GmbH (Ger... | A high resolution, laser desorption time of flight mass spectrometer (LITOF-MS) was used to study lead borate glasses and crystals. This technique provides valuable information about glass structure, including the superstructural network units. Several structural units were identified and we found evidence of a lead su... | eng_Latn | 9,240 |
[Effect of toxic concentrations of 2,4,6-trinirtotoluene on the physical properties and morphology of bacillus subtilis SK1]. | It has been demonstrated for the first time that the toxic effect of 2,4,6-trinitrotoluene on the gram-positive strain Bacillus subtilis SK1 is accompanied by a decrease in the cell size and an increase in the refraction index (i.e., density) and thermostability of the culture. These data suggest that determination of ... | A theoretical study was carried out to determine the dielectric response and tunability of a composite consisting of a linear, low-loss dielectric matrix with uniformly sized, randomly distributed paraelectric Ba0.60Sr0.40TiO3 (BST 60/40) particles as functions of the volume fraction and size of the particles. The fiel... | eng_Latn | 9,246 |
An admissible solution approach for diffuse optical tomography | Our goal is to characterize the space-varying absorption coefficient from observations of diffuse light propagating through tissue. Sensor array measurements from illumination with several sources leads to an inverse problem which, due to the physics and the restriction of sensors to the surface, is ill-posed and under... | AbstractObjective: The objective of this study was to enhance the solubility and bioavailability of Lupeol.Methods: Utilizing a thin-film dispersion method, we prepared Lupeol-loaded PEGylated lipo... | eng_Latn | 9,249 |
Phase transition study of some selected azine compounds | Abstract The dielectric constants (real and imaginary) of benzaldazine and its hydroxy derivatives have been measured at different frequencies up to 100 kHz. The measurements were also carried out at different temperatures up to near the melting point of each sample. Two phase transitions were obtained during measureme... | Alkaliphilic bacterial strains producing the enzyme cyclodextrin glucanotransferase were cultivated on solid agar medium containing an indicator system detecting the enzyme. The growth of the colony and the surrounding diffusion zone, due to the enzyme, were measured by the image analysis during the cultivation. It was... | eng_Latn | 9,261 |
Turnover and fractionation of nitrogen stable isotope in tissues of grass carp Ctenopharyngodon idellus | A comparative study on growth, protein turnover and energy budget of green and white color morphs of sea cucumber Apostichopus japonicus (Selenka) | Evidence that Northern Pioneering Pines with Tuberculate Mycorrhizae are Unaffected by Varying Soil Nitrogen Levels | eng_Latn | 9,324 |
Ultraviolet-B radiation and nitrogen affect the photosynthesis of maize: a Mediterranean field study | Salicylic acid and nitric oxide increase photosynthesis and antioxidant defense in wheat under UV-B stress | Evidence that Northern Pioneering Pines with Tuberculate Mycorrhizae are Unaffected by Varying Soil Nitrogen Levels | eng_Latn | 9,359 |
Bread wheat production under drought stress conditions | Grain yield and its components study and their association with normalized difference vegetation index (NDVI) under terminal water deficit and well-irrigated conditions in wheat (Triticum durum Desf. and Triticum aestivum L.) | Improved wheat grain yield by a new method of root selection | eng_Latn | 9,409 |
Enumerating low densities of genetically engineered Erwinia carotovora in soil. | An inexpensive, quantitative, and sensitive technique was developed for detection of genetically engineered Erwinia carotovora in soil samples. Enrichment media, antibiotic resistance, and most probable number (MPN) analysis were used to enumerate as few as 1 to 10 target cells/10 g soil. The MPN technique recovered si... | Abstrcat Taking a sand-grown plant garden for example, the garden's natural conditions and land use actuality are analyzed, and the landscape ecological construction goal of the garden is proposed. A study is conducted on the ecological design of the garden landscape. | eng_Latn | 9,559 |
Soil Organic Carbon Accumulation in Post-Agricultural Soils under the Influence Birch Stands | The aim of this study was to demonstrate the effects birch renewal on the soil organic carbon accumulation and on dehydrogenase activity. We selected 12 research plots with birch stands of different ages (1–4 years, 5–8 years, 9–12 years, and 13–17 years) to determine soil texture, pH, total carbon and nitrogen levels,... | Background ::: Smallholders have begun to take advantage of a growing pool of investment in climate change mitigation. Meanwhile, early movers in this area are working to develop innovative models that will allow projects to be financially sustainable and scalable while benefiting local actors. This study focuses on tw... | eng_Latn | 9,560 |
A Review on Bio-macromolecular Imprinted Sensors and Their Applications | Abstract Molecular imprinted technology has been maturely applied to analyze and detect small molecular organic compounds, also increasingly applied in biological macromolecules assay. This review addresses the perspective of bio-macromolecular imprinted sensors and their applications, including optical molecular impri... | Purpose ::: Shifts of microbial biomass and functional diversity under different vegetation patterns can impact the soil processes, and the specific knowledge about this can be used to develop sound vegetation restoration strategies. This study was devoted to examine the effects of different vegetation patterns on micr... | eng_Latn | 9,570 |
Evaluation of Rhizobium meliloti strains indigenous to Sonoran Desert soils by plasmid profile and intrinsic antibiotic resistance | In Arizona, alfalfa (Medicago sativa L.) is not normally inoculated and yet yields are high due to biological nitrogen fixation by indigenous strains of Rhizobium meliloti. The objectives of this study were 1.) to determine the dominant R. meliloti strains indigenous to the Southwest, 2.) to evaluate environmental fact... | All places surveyed are included in the zone of serpentin. Almost all hills are slided and collapsed and they have no big tree. The reservoir is being filled with a large amount of slided materials. Four places were chosen along the road for the present survey where some special features of the land-slide were respecti... | eng_Latn | 9,575 |
Spatial and temporal changes of soil nutrients of spring maize field in the Loess Plateau under conservation tillage | Three kinds of farming measures were adopted,such as no tillage(NT),conventional tillage + straw returning(TS) and conventional tillage(CT),to study the effects of different tillage treatments on soil nutrient content of spring maize field in the Loess Plateau for three consecutive years.The results show that soil orga... | The value of floodplain lands in agricultural use following channelization and the resulting foregone value of these lands were estimated. The latter estimates were incomplete because of the inability to predict effects on potentially important parameters. Estimated differences provide a threshold for decision-making. ... | eng_Latn | 9,581 |
Microbial transformation of sulfate in forest soils. | Incubation of forest soils containing sulfate labeled with sulfur-35 showed rapid conversion of the added sulfate to organic sulfur forms by microbial populations. Activity rates were highest in the forest floor, but significant activity was observed throughout the soil profile. The annual potential sulfur incorporatio... | Background ::: Smallholders have begun to take advantage of a growing pool of investment in climate change mitigation. Meanwhile, early movers in this area are working to develop innovative models that will allow projects to be financially sustainable and scalable while benefiting local actors. This study focuses on tw... | eng_Latn | 9,586 |
Field study on denitrification in soil of south Fujian agricultural catchment | Denitrification from soils is the main pathway of gaseous loss for nitrogen in the catchments.We measured the denitrification rate from the top-soil in Wuchuan catchment by using the acetylene inhibition technique.The result of this experiment indicated that denitrification of the soil had the temporal and spatial vari... | This article deals with the phenomenon of crime as experienced by farmers in various farms in the area of "Transvaal Sugar Limited". The empirical-phenomenological method was utilised and the following five steps were employed: reduced transcriptions, summarising the main points of the case, illustrated condensation of... | eng_Latn | 9,588 |
what is an example of a negative stain? | Negative Staining- Principle, Reagents, Procedure and Result 3.95/5 (38) Negative Staining- Principle, Reagents, Procedure and Result. The main purpose of Negative staining is to study the morphological shape, size and arrangement of the bacteria cells that is difficult to stain. eg: Spirilla. It can also be used to st... | Negative and positive externalities. In the case of pollutionâthe traditional example of a negative externalityâa polluter makes decisions based only on the direct cost of and profit opportunity from production and does not consider the indirect costs to those harmed by the pollution. | eng_Latn | 9,592 |
An Overview: Improvement in Ber Performance of OFDM System Using Companding Technique. | Companding transform is a simple and efficient method in reducing peak to average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) system. In this paper a method of performance enhancement with reference to the performance measures like BER and system spectral regrowth will be investigated by emp... | Purpose ::: The objectives of this study were (1) to investigate the effects of manure compost and earthworms on Cd mobility in Cd-contaminated soil, (2) to test whether the bioturbation of earthworms reduces the immobilization effect of the manure compost when they are combined, and (3) to explore the distribution of ... | eng_Latn | 9,643 |
Effects of Biochar on Nutrient Leaching and Begonia Plant Growth1 | Abstract Biochar is a highly adsorptive carbon substrate. A study was conducted to determine the ability of biochar to reduce fertilizer runoff from nurseries. Potting mix was augmented with biocha... | The survival of energy plants during the construction of the Three-Gorges Reservoir Project was investigated based on the specific geography and climate characteristics in this area.Some protective measures for energy plants were put forward in order to support government decision-making for development of biomass ener... | eng_Latn | 9,652 |
Bioethanol Production from Sugarcane Grown in Heavy Metal-Contaminated Soils | Field and laboratory experiments were conducted to evaluate the feasibility of bioethanol production using the juice of sugarcane grown in heavy metal-contaminated soils. The results suggest that the sugar concentration was not adversely affected when the sugarcane was grown in the heavy metal-contaminated soil. Althou... | According to researches in over twenty years about detoxification of cottonseed meal by microorganism, effects of microorganism strains and solid state fermentation technology to detoxification of free gossypol were summarized, and application effects of detoxified cottonseed meal in animal feed were also discussed. At... | eng_Latn | 9,660 |
The study on start_up for UASB and treatment of wastewater containing RDX | This paper is intended to study the start up for UASB reactor that is seeded by cattle manure and to treat wastewater containing RDX.The results show that cattle manure can be used as seed material of UASB;effluent treated by the system containing UASB is achieved national standard of wastewater discharge;effect of tre... | Rainfed agriculture accounts for 92.8 m ha or 65% of total cultivated area which contributes about 44% of total food grain production and it supports 40% human and 60% livestock population. Rain water harvesting (RWH) can be done by two methods, in-situ and ex-situ. Among in situ mulching, broad bed and furrow (BBF), z... | eng_Latn | 9,681 |
Fate of Mineral Nitrogen in Acid Heathland and Forest Soils | Ammonium added to heathland soil (pH 3.7) or to Douglas forest soil (pH 3.7) appeared to be rather stable. This contrasted with a sandy agricultural soil (pH 5.5) from which ammonium disappeared rapidly. | Purpose ::: Shifts of microbial biomass and functional diversity under different vegetation patterns can impact the soil processes, and the specific knowledge about this can be used to develop sound vegetation restoration strategies. This study was devoted to examine the effects of different vegetation patterns on micr... | eng_Latn | 9,689 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.