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Hamilton (1967) pointed out that Fisher’s (1930) argument predicting an equality of the sex ratio may break down when there is local competition for mates. He considered in particular a model in which the environment consists of a number of isolated patches, each of which is colonized by a number of inseminated females... |
Due to the impairments in optical fiber transmission, regeneration is needed in certain intermediate nodes for some lengthy lightpaths. This kind of optical networks is called translucent optical networks. Spare transceivers in the optical nodes can be used for regeneration. The problem of maximizing the number of esta... |
ABSTRACT This work proposes a distributed attitude synchronisation control for an undirected connected network of agents that robustly globally asymptotically stabilises the synchronised state. The strategy uses a quaternion representation of the attitude and hysteretic hybrid feedback with one binary logic variable fo... |
A 79-year-old man was given a cumulative dose of 16.5 g of nilutamide for treatment of prostate cancer. He then presented with a respiratory illness having clinical, radiologic and functional characteristics of interstitial pneumonitis. No other cause of pneumonitis was found. Bronchoalveolar lavage showed a lymphocyti... |
The dependence of UV-induced unscheduled DNA synthesis (UDS) in non-stimulated lymphocytes of human peripheral blood on the ionic strength (mu) of the culture medium has been shown. With the level of mu lower or higher than physiological (mu ph) the UDS significantly decreases. The effect of modification of mu due to c... |
This commentary discusses the findings from a population-based HIV/AIDS surveillance cohort that indicated a detectable burden of high blood glucose and a significant prevalence of high blood pressure among residents of 25 villages in southwestern rural Uganda. It concludes that the findings highlight the spread of car... |
This paper presents some of the successful design methodologies used to predict the robustness of a heading controller for a 2 meter autonomous sailing vessel. A graphical technique is introduced to estimate the discrete-time proportional integral derivative (PID) controller coefficients to satisfy H-infinity complemen... |
Orchids of the Neotropical genus Catasetum have sexually dimorphic flowers; that is, male and female flowers are distinctly different in shape and color. Male flowers forcibly attach a large pollinarium onto euglossine bees. Euglossa bees leave the male flower in response to pollinarium emplacement by Catasetum ochrace... |
Internet traffic is increasingly becoming a mediastreaming traffic. Especially, Video-on-Demand (VoD) services are pushing the demand for broadband connectivity to the Internet, and optical fiber technology is being deployed in the access network to keep up with such increasing demand. To provide a more scalable networ... |
Summary: Reconstruction of pharyngolaryngoesophageal defects following salvage surgery in patients with a history of chemoradiation is a challenging problem with a high incidence of pharyngocutaneous fistula. The authors describe three cases of successful reconstruction of partial pharyngolaryngoesophageal defects usin... |
Asthma and rhinitis frequently coexist in allergic patients, but nasal symptoms may predominate, leading to asthma underdiagnosis and undertreatment. Discriminant analysis obtains the best differentiation between groups using one or one set of variables. Our aim was to identify the laboratory test [allergen exposure, t... |
who re-christianized a remote mountain village whose inhabitants had simply not had the motivation to maintain Christian worship for themselves. The latter illustrates the church's problems in maintaining the conversion of the countryside. Here John Chrysostom's critique of upper class indifference to the faith of thos... |
Major sports events have emerged as an important destination development tool for many developing countries in sub-Saharan Africa. This study aimed to assess the socioeconomic impacts of the 2016 Women African Cup of Nations (WAFCON) hosted in Cameroon. Taking the hosting cities (Limbe and Yaounde) as the case study s... |
A relation between the logarithmic capacity and the condition number of the BEM-matrices |
We establish a relation between the logarithmic capacity of a two-dimensional domain and the solvability of the boundary integral equation for the Laplace problem on that domain. It is proved that when the logarithmic capacity is equal to one the boundary integral equation does not have a unique solution. A similar res... |
ABSTRACT This study describes the construction and analysis of three in vivo-inducible promoter expression plasmids, containing pnirB, ppagC, and pkatG, for the delivery of foreign antigens in the ΔaroAD mutant ofSalmonella enterica var. Typhimurium (hereafter referred to as S. typhimurium). The reporter genes encoding... |
Various types of male gametes, such as spermatozoa, spermatids and spermatids obtained after the in-vitro division of secondary spermatocytes, were injected into the in-vitro matured bovine oocytes in order to examine the possibility of utilizing in-vitro derived spermatids for intracytoplasmic injection. There were no... |
In this contribution, a system for motion-aware ambulatory blood pressure measurement is presented for the first time. Regular measurement of blood pressure is a key factor in controlling hypertension. However, blood pressure measurements in doctor's surgeries are random samples of a value varying during the day. 24h a... |
The public sector and public governance play a crucial role in the contemporary society which takes care of social needs. Therefore, it is not surprising that good governance has often been used to explain good economic performance as well as the well-being of a society over the last decade. However, the business secto... |
Religious literacy may be seen as a prerequisite for religious freedom. This article analyzes how the development of religious literacy is supported in the curricula of Estonian primary and secondary schools and the extent to which these schools guarantee religious freedom. We assume that developing religious literacy ... |
Background Urinary 5-hydroxyindoleacetic acid (5-HIAA) is a first-line investigation for gastrointestinal neuroendocrine tumours that secrete serotonin. It also has clinical utility for monitoring disease progression and therapeutic response. Aim To develop and validate a liquid chromatography-tandem mass spectrometry ... |
Background : Hemoglobin Constant Spring (HbCS) is the most prevalent α-globin variant in Lao population. Person with heterozygous HbCS have an almost normal clinical presentation but when inherited along with another thalassemia or hemoglobinopathies results in a more severe phenotype. The detection of HbCS can be miss... |
Mediastinal masses in children are known to cause potentially lifethreatening respiratory and cardiovascular complications. The tumor mass which directly compresses the trachea and bronchus induces hypoxia and asphyxia eventuating in cardiac arrest or even fatality in the process of general anesthesia. Obstruction of m... |
The threshold error in electro-optical devices represents a serious problem in many applications and should be kept as low as possible for optimal system performance. In the past the authors have investigated the possibility of improving the performances of bistable systems by using Stochastic Resonance (SR) theory. In... |
Lymphocyte recirculation through the blood flow circuit and lymphoid organs is important for the maintenance of immune defense, and is defined as lymphocyte homing. During the homing process, several adhesion molecules have been postulated to play an important role in lymphocyte recruitment from the vascular space. In ... |
The constitutions of the last two centuries are monuments to an eminently modern enterprise: the reconstruction of the political order by rational human effort. Constitution-making is a deliberate attempt at institution-building at the fundamental level of laying down the normative and legal foundations of the politica... |
In this article, a typical and representative kinematic hardening soil model is first studied to investigate its capabilities to reproduce soil responses under principal stress rotations (PSR). It is found that the model is capable of reproducing the non‐coaxiality very well. It can qualitatively capture the trends of ... |
sees religious symbolic-cultural systems as cognitively significant and which assigns an important place to beliefs about ’superhuman agents’. Rejecting an empiricist view of meaning they draw a strong analogy between language (understood in a Chomskian perspective) and religious systems. Their holistic understanding o... |
OBJECTIVE |
In this study, we assessed the magnitudes of nociceptive withdrawal reflexes evoked by skin and muscle incisions made with steel scalpel and erbium:yttrium-aluminum-garnet (Er:YAG) laser. |
BACKGROUND DATA |
A few studies have suggested that laser incisions would be less painful than conventional scalpel incisions. |
METHODS |
Twenty adult male Sprague-Dawley rats were used. Under light barbiturate anesthesia, graded incisions were made into the plantar surface of the animals' hindpaws. Electromyographic (EMG) recordings from a hamstring muscle were used to estimate the nociceptive response. |
RESULTS |
The mean amplitude of EMG activity was significantly higher during incisions made with steel scalpel than with any of the laser irradiation parameters. All laser irradiation parameters produced similar nociceptive responses. |
CONCLUSION |
Er:YAG laser incisions may be less painful, albeit considerably slower, than scalpel incisions. Laser incisional pain would be more closely related to the mechanical rather than the thermal effect of laser ablation.Towards a Modular Brain-Machine Interface for Intelligent Vehicle Systems Control – A CARLA Demonstration |
Objective: Individuals with paralysis often have mobility and dexterity impairments that limit their ability to operate motor vehicle controls. Integrating brain-machine interface (BMI) neurotechnology with vehicle control systems (VCS) provides a novel solution to this problem. In this proof-of-concept study, we show ... |
Both WS2 and SnS are 2-dimensional, van der Waals semiconductors, but with different crystal structures. Heteroepitaxy of these materials was investigated by growing 3 alternating layers of each of these materials using atomic layer deposition on 5 cm × 5 cm substrates. Initially, WS2 and SnS films were grown and chara... |
BACKGROUND |
Several genes are associated with an increased susceptibility to asthma, which may be exacerbated by ambient air pollution. These genes include GSTM1 (glutathione-S-transferase M1 gene) and GSTP1 (glutathione-S-transferase P1 gene), which may modulate the response to epithelial oxidative changes caused by air pollutant... |
METHODS |
A longitudinal cohort of 129 schoolchildren of African descent from Durban, South Africa was assessed. GSTM1 (null vs. present genotype) and GSTP1 (Ile105Val; AA → AG/GG) genotypes were determined using standard techniques. SO(2), NO(2), NO, and PM(10) were measured continuously over a year using validated methods. The... |
RESULTS |
Among the children tested, 27% had the GSTM1 null genotype and 81% carried the GSTP1 G allele. Approximately 26 out 104 children (25%) showed evidence of bronchial hyperreactivity, 13% reported having symptoms in keeping with persistent asthma, and a further 25% reported symptoms of mild intermittent asthma. PM(10) and... |
CONCLUSION |
Among this indigenous South African children cohort, the GSTP1 genotype modified the effects of ambient exposures to PM(10) and SO(2) and lung function. A plausible mechanism for these observed effects is decreased capacity to mount an effective response to oxidative stress associated with the GSTP1 AG + GG genotype.A ... |
BACKGROUND: Epistaxis, or nasal bleeding, is a common complication after nasotracheal intubation (NTI). Because such bleeding is likely related to trauma during intubation, use of fiberoptic visualization and guidance rather than direct laryngoscopy may affect the incidence and severity of epistaxis. We compared the in... |
Limited research suggests that energy intake is greater on weekend days (Friday–Sunday) than on weekdays. The purpose of this study was to assess nutrient intake differences between weekend days and weekdays in a sample of 503 healthy, weight‐stable men and women aged 30–69 years. The sample included 107 obese subjects... |
In this paper, a formation control method of quadrotor Unmanned Aerial Vehicles (UAVs) by vision-based positioning is presented. The relative positions and attitudes of two UAVs with respect to a visual marker attached to the third UAV is estimated by a camera calibration method. Based on the estimated positions and at... |
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