text
stringlengths
0
10.1k
In 1979 it was decided to activate, within the Institute of Occupational Health of the Milan "Università degli Studi", a new Unit of Ergophthalmology. This decision was taken owing to the progressive diffusion of "optical instruments", particularly computer-based equipment, in the world of work and to the relevance tha...
To investigate the role of carcinogenic chemicals as a possible cause for oxidative damage, rats were treated with N-nitrosodimethylamine (NDMA) and various measures of lipid peroxidation were followed. As an indication of enhanced peroxidative processes in vivo, NMDA treatment produced rapidly an increase in the rate ...
Whole Language has come under recent attack, especially as some programs implementing instruction considered “whole language” have seen decreases in achievement scores in reading and writing (Fry, 1995). This has led many educators and parents to question whole language as a teaching philosophy and to mandate the struc...
donor in most of these reactions is Sadenosyl methionine (SAM), and various chapters are devoted to its measurement, ‘distribution, pharmacokinetics, and effects on behaviour. A concise description of the most important transmethylating enzymes is provided by J. M. Saavedra. For the clinician, the last three chapters c...
Aim. To study the mineral composition of the sternum in patients with congenital funnel-shaped deformations of the chest.
Methods. X-ray spectral microanalysis of the sternum was performed in 10 patients with pectus excavatum aged 1417 years (30 zones) on a scanning electron microscope with an accelerating voltage of 25 kV. The results of the sternum examination of 3 patients aged 1416 years (10 zones) operated on for other diseases were ...
Results. Graphic images of mineralization of each investigated zone of the sternum were obtained. As a result of processing the graphic data, the IBAS-200 system obtained average atomic orbital values, weight and atomic percent, net and background intensities and their ratios, intensity errors of the elements-constitue...
Conclusion. Net intensity of phosphorus and calcium in healthy children was higher, in the pathogenesis of the deformation of the chest, the sternum changes its shape secondarily.Treating hyperphosphatemia – current and advancing drugs
ABSTRACT Introduction: Hyperphosphatemia is a hallmark of advanced chronic kidney disease (CKD) and associated with adverse outcomes. Preclinical and epidemiological studies strongly support a causal relationship between hyperphosphatemia and mortality as well as cardiovascular complications, especially including vascu...
In this report, the authors review the existing literature on compost leachates, with special emphasis on the chemical and physical characteristics of the leachate constituents. The authors briefly summarize the biochemical processes occurring during composting and the use and applications of compost in the environment...
The increasing strength of representative democracy in South Africa has acted to profoundly change the nature of the participatory process in urban development. Building on the considerable experience amassed in community participation in the development process in South Africa, we examine the findings from three small...
Abstract High precision U/Pb data obtained from zircons extracted from plagiogranite within the gabbro unit of the Shetland Islands oceanic fragment of northeast Scotland yield an age of 492 ± 3 Ma. Field relations indicate that the plagiogranites were generated by the partial melting of amphibolitized gabbros within h...
: Rawls is one of the most important philosophers in American and Western thought in the 20th century. His main theoretical contributions are the reappropriation of the social contract and natural law doctrines in political philosophy, a comprehensive exposition of his basic theory of "justice as fairness," and a profo...
Twenty-one patients with type II hyperlipidaemia were treated with the nicotinic acid analogue, acipimox (Olbetam; Farmitalia), for 6 months. Total cholesterol decreased by 10% and the high-density lipoprotein: low-density lipoprotein cholesterol ratio increased by 13%. Triglycerides were unaltered. Two patients stoppe...
RATIONALE
A central component of septic shock treatment is the infusion of vasopressors, most commonly starting with norepinephrine. However, the optimal approach and practice patterns to initiating adjunctive vasopressors and corticosteroids are unknown.
OBJECTIVES
To characterize practice pattern variation in the norepinephrine dose at which secondary vasopressors and adjunctive corticosteroids are initiated and to identify factors associated with a treatment strategy favoring secondary vasopressors to a treatment strategy favoring adjunctive corticosteroids among patients with ...
METHODS
We used a multicenter ICU database to identify patients with septic shock who were started on norepinephrine followed by an additional vasopressor or corticosteroids. We used multi-level models to determine the hospital risk-adjusted norepinephrine dose at which additional vasopressors and corticosteroids were started,...
RESULTS
Among 4,401 patients with septic shock on norepinephrine, 1940 (44.0%) were started on adjuncts (1357 received an 'additional vasopressor first' strategy and 583 received a "corticosteroid first strategy). The hospital risk-adjusted norepinephrine dose at which vasopressors were initiated ranged 6.4 mcg/min (95% CI 5.9...
CONCLUSIONS
Practice patterns for adjunctive therapies to norepinephrine during septic shock are variable and are determined in large part by hospital of admission. These results inform several future studies seeking to improve septic shock management.[Reoperation for valvular heart disease: its operative procedure and result].
From April, 1983 to March, 1993, 63 patients (pts) underwent reoperations of valvular heart disease at Tokyo Medical and Dental University Hospital, of which 44 pts had undergone closed mitral commissurotomy (CMC), open aortic or mitral commissurotomy (OAC or OMC) or valvuloplasty, and 17 pts had undergone aortic or mi...
Alan Gibbons is a member of Liverpool Walton Constituency Labour Party. He writes adult and children’s fiction and is about to start work on a history of the Left in Liverpool. Alan Gibbons is a million-selling writer of over seventy books. He decided to join the Labour Party in 2015, and was involved in the 2017 campa...
The selection of traffic mode is related to the service level of the traffic mode, the characters of travelers and the characters of the trip. In order to reduce the forecasting error in traditional model, ML and NL mode split model are established in this paper. All the traffic modes are classified into one arrangemen...
Previous work (Pradines, 1966, Aof and Brown, 1992) has given a setting for a holon-omy Lie groupoid of a locally Lie groupoid. Here we develop analogous 2-dimensional notions starting from a locally Lie crossed module of groupoids. This involves replacing the Ehresmann notion of a local smooth coadmissible section of ...
Amphidinium lacustre Stein, non sensu auctt. was identified by reference to original descriptions, which differ significantly from later interpretations. Mixed cultures containing A. lacustre, cryptomonads, Spermatozopsis exsultans Korshikov, and small chlorelloid cells were examined for feeding events. The dinoflagell...
OBJECTIVE
We have developed a simple and easy modification of the orbitozygomatic approach using one-piece pedunculated craniotomy. This modification prevents atrophy of the temporal muscle, resulting in temporal fossa depression and atrophy of the free bone graft resulting in the occurrence of bone pits along the line of the cr...
METHODS
The key points of this modification are as follows. The scalp flap is elevated in the plane between the superficial and deep layers of the temporal fascia. The temporal muscle is dissected from the temporal plane by performing subperiosteal elevation with intact insertion to the superior temporal line of the temporal m...
RESULTS
After the surgeons had received full training in the procedures and anatomic findings related to this craniotomy in 10 cadaveric heads, surgery was performed for paraclinoid or parasellar tumors in five patients. Although temporary pulsatile exophthalmos occurred after surgery in one patient, no craniotomy-related comp...
CONCLUSION
The modifications described in this article reduce the risk of atrophy of the temporal muscle and improve the cosmetic results without limitation of operative exposure.Initiation of minus-strand DNA synthesis by human immunodeficiency virus type 1 reverse transcriptase.
The initiation of (-) strand DNA synthesis by HIV-1 reverse transcriptase was examined using a transient kinetic approach and a physiologically relevant RNA 18-mer/RNA 36-mer primer-template substrate. HIV-1 reverse transcriptase (RT) was found to bind with reasonably high affinity to the RNA/RNA substrate (K(d) = 90 n...
The behavior of tritium release from the vacuum vessel of JT-60U during air exposure phase at controlled water vapor concentration and gas purging in the wall conditioning phase has been investigated. For the air exposure with varying water vapor concentrations of 40ppm, 300ppm, 680ppm and 3400ppm, tritium concentratio...
Pancreatic and islet cell transplantation are considered surgical therapeutic modalities for type 1 diabetes mellitus with or without end-stage renal disease. The pancreatic transplant can be performed alone or with the kidney transplant simultaneously or at different times. It contributed to an improved quality of lif...
In mammals, biominerals consist of calcium and phosphate which form hydroxyapatite. Complex molecular and cellular mechanisms have evolved permitting crystallization of calcium and phosphate (i.e., forming hydroxyapatite) only at specific sites of the body. Pyrophosphate (PPi) is a central factor in the prevention of p...
In data centers today, servers are stationary and data flows on a hierarchical network of switches and routers. But such static server arrangements require very scalable networks, and many applications are bottlenecked by network bandwidth. In addition, server density is kept low to enable maintenance and upgrades, as ...
BACKGROUND
Since the first reports on indications and outcome for abdominal procedures in the HIV/AIDS patient were published 20 years ago, the epidemiology and presentation of surgical illness have changed remarkably with the advent of new antiviral regimens. A review of the now occasional, but still important, role of the surge...
DATA SOURCES
Information was obtained by PubMed searches of medical journals, examination of reference lists, and Web resources.
STUDY SELECTION
Articles on operative indications, outcomes, precautions, source of transmission, and pathophysiology of HIV/AIDS were selected.
DATA EXTRACTION
Data was obtained from peer-reviewed articles and references.
DATA SYNTHESIS
The last 2 decades have seen a decrease in operative mortality from as high as 85% to approximately 15% with a corresponding improvement in morbidity. Surgical emergencies such as appendicitis occur in HIV patients with the same frequency as non-HIV patients and are treated with equivalent results. Concern about transm...