Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 285 )

2018 ( 518 )

2017 ( 535 )

2016 ( 764 )

Custom range...

Search Results: 1 - 10 of 325185 matches for " S. Perl "
All listed articles are free for downloading (OA Articles)
Page 1 /325185
Display every page Item
Clinical aspects of an outbreak of papillomatous digital dermatitis in a dairy cattle herd : case report
I. Yeruham,S. Perl
Journal of the South African Veterinary Association , 2012, DOI: 10.4102/jsava.v69i3.830
Abstract: Digital skin lesions and lameness of several weeks duration, with a morbidity rate of 28.3 %, was reported in a group of 60 Holstein-Israeli dairy cows in various stages of lactation. A clinical survey was performed to monitor recovery and to confirm eradication of bovine papillomatous digital dermatitis in the herd. The combined effects of intensive individual treatment of the 4 lame cattle with procaine penicillin and metronidazole, and subjecting all animals in the herd to a foot bath with a solution composed of formaldehyde and sodium hydroxide twice a week for 12 weeks, were found to achieve a dramatic positive response in all affected cows in the herd. During a 1-year follow-up period no recurrence and/or new cases have been diagnosed.
An Unusual Congenital Malformation in a Calf with Serological Evidence of Foetal Bovine Viral Diarrhoea Virus Infection
I Yeruham, M Michael, S Perl
Acta Veterinaria Scandinavica , 2001, DOI: 10.1186/1751-0147-42-425
Abstract: The possible outcomes of foetal infection include foetal resorption, abortion, mummification, congenital malformations, birth of weak and undersized calves, birth of calves persistently infected with BVD virus, and birth of normal calves. Foetopathology caused by BVD virus infection during the first trimester has been well documented [13,7,20,4,3,9,21,2,17,18]. The following congenital defects have been described: cerebellar hypoplasia, hydrocephalus, hydranencephaly, with or without cranial deformation, dysmyelination of the spinal cord, lenticular cataracts, microphthalmos, chorioretinopathy, alopecia, brachygnathia, intrauterine growth retardation and thymus hypoplasia.This report describes an unusual congenital malformation in a calf, where there was serological evidence of foetal BVD virus infection. The male calf was born to a 3.5-year-old dairy cow after a prolonged gestation (294 days), and 15 min after the calving the animal died. The first female calf born to this cow, one year previously, was normal. The well managed dairy cattle herd (Israeli-Holstein breed), comprising 40 lactating cows, was kept under a zero-grazing management system in open barns, all the year round, with a rolling herd milk production average of 9,000 kg. The herd had not been routinely vaccinated against BVD infection. This unusual malformation was one-off occurrence, and there were no other indications of BVD virus – associated in this herd. Serological survey by ELISA test showed a prevalence of 89% for BVD virus in this particular herd.Pre-colostral serum from heart blood of the newborn calf and a blood sample from the dam were collected for detection of neutralizing antibodies and for virus isolation.Kidneys and lungs from bovine foetuses, obtained from a local abattoir, formed the source for the cell cultures. Preparation of the cell suspension was performed according to standard procedures [15].Five millilitres of the final cell suspension were cultured separately, passaged th
Apparent idiopathic interface disease in a Boer billy goat
I. Yeruham,S. Zamir,S. Perl,S. Garazi
Journal of the South African Veterinary Association , 2012, DOI: 10.4102/jsava.v73i2.561
Abstract: An apparently idiopathic interface disease in a 2-year-old Boer billy goat is described. Clinical features of the disease were the presence of a pruritic multiple focally disseminated dermatitis with flat-topped, angular, scaly plaques and papules with corrugated surfaces in the skin of virtually the entire body. The aetiology of the disorder in the described case is unknown.
Clinical and epizootiological study of a leptospirosis outbreak due to Leptospira canicola in a feedlot : case report
I. Yeruham,M. Bernstein,S. Perl,S. Irlin
Journal of the South African Veterinary Association , 2012, DOI: 10.4102/jsava.v68i3.886
Abstract: This report describes the epizootiology, clinical presentation, diagnosis and treatment of an outbreak of leptospirosis caused by Leptospira canicola in feedlot calves. The infection appeared to be of high morbidity with a cumulative clinical incidence of 15.6 %, cumulative subclinical incidence of 39 % and high mortality (8.3 %). Clinical disease was diagnosed in 4-8-month-old calves, while subclinical infection occurred in 9-12-month-old calves. Subclinical infection was based on serological evidence only. The zoonotic aspects of the infection are emphasised.
Carvedilol and Hydrochlorothiazide in Hypertensives with Metabolic Disorder: Not Always Bad News - An Austrian Survey
Zweiker R,Perl S,Sock S,Stoschitzky K
Journal für Hypertonie , 2009,
Abstract: Carvedilol und Hydrochlorothiazid bei Hypertonikern mit Stoffwechselst rung: Perspektive für eine differenzierte Betrachtungsweise? Einleitung: Nach den derzeit gültigen Richtlinien für die Behandlung der Hypertonie gelten Betablocker nicht mehr als Therapie der ersten Wahl, vor allem, wenn die Hypertonie mit Diabetes mellitus und/oder Dyslipid mie vergesellschaftet ist. Betablocker der dritten Generation wie Carvedilol weisen jedoch positive metabolische Effekte auf. Diese Untersuchung wurde durchgeführt, um die Effekte von Carvedilol in Kombination mit einem Thiazid-Diuretikum (TD) in einem gro en Kollektiv sterreichischer Hypertoniker mit Diabetes mellitus II und/oder Dyslipid mie zu untersuchen. Methoden: In 427 Zentren wurden 2163 hypertensive Patienten (52 % M nner) in eine Praxisstudie rekrutiert [mean ± SD]: Alter 64 ± 11 Jahre, BMI 29 ± 4 kg/m2, Bauchumfang: 97 ± 13 cm (Frauen), 105 ± 11 cm (M nner). Visiten wurden alle 3 Monate durchgeführt. Blutdruck (BD), Lipidparameter, Bauchumfang und HbA1c wurden gemessen und das kardiovaskul re Risiko mittels New Zealand Risk Score ermittelt (MACCERate innerhalb von 5 Jahren). Ergebnisse: Zu Studienbeginn zeigten sich folgende Basiswerte: Blutdruck 163 ± 16/94 ± 9 mmHg, Herzfrequenz 73 ± 11 bpm, Gesamtcholesterin 229 ± 44, LDL-Cholesterin 137 ± 39, HDLCholesterin 52 ± 17, Triglyzeride 196 ± 96 mg/dl und HbA1c 7,1 ± 1,1 %. Nach einer Behandlungsdauer von 12 Monaten zeigte sich eine Reduktion des systolischen BD um 27 ± 16 (p 0,01) und des diastolischen BD um 14 ± 9 mmHg (p 0,01). Die metabolischen Parameter verbesserten sich ebenfalls signifikant: Cholesterin 25 ± 35 mg/dl, LDL 17 ± 30 mg/dl, HDL +3 ± 10 mg/dl, Triglyzeride 31 ± 75 mg/dl und HbA1c 0,5 ± 0,8 (alle p 0,01). Auch das errechnete kardiovaskul re Risiko reduzierte sich signifikant von 4,7 ± 1,5 auf 4,0 ± 1,1 % ( 13 %). Schlussfolgerung: Diese Praxisstudie mit Beobachtungscharakter belegt die Auswirkungen der Therapie mit Carvedilol in einem gro en Patientenkollektiv mit Stoffwechselst rungen. Die Ergebnisse belegen, dass eine Therapie mit Carvedilol, einem Betablocker der dritten Generation mit vasodilatierenden Eigenschaften die metabolische Situation nicht ungünstig beeinflusst, selbst wenn sie mit niedrigen Dosen eines Diuretikums kombiniert wird.
Antihypertensive Therapie bei "noch normalen" Blutdruckwerten?
Zweiker R,Perl S,Riegelnik V,Stoschitzky K
Journal für Hypertonie , 2009,
Abstract: Blutdruckgrenzwerte ( 140/90 mmHg) zur Einleitung einer antihypertensiven Therapie sind arbitr r gew hlt. Das Risiko für eine erh hte Inzidenz von Blutdruckfolgekrankheiten ist bei einem Blutdruck von 139/89 nur unwesentlich niedriger als bei 141/91 mmHg. Eine Therapieentscheidung muss daher von anderen Parametern wie dem begleitenden kardiovaskul ren Risikoprofil und eventuell bestehenden Folgekrankheiten abh ngig gemacht werden. Die Evidenz für eine Therapie mit Antihypertensiva bei noch normalen Blutdruckwerten ist allerdings sp rlich. Am ehesten profitieren Patienten mit einer koronaren Herzkrankheit, einem Zustand nach zerebrovaskul rem Insult oder mit einem Diabetes mellitus davon. M glicherweise kann die Entstehung einer manifesten Hypertonie durch eine antihypertensive Therapie etwas verz gert werden. Unbedingt erforderlich sind jedoch zus tzliche Informationen über die Blutdruckbelastung des einzelnen Patienten, wie sie z. B. über das ambulante Blutdruckmonitoring erh ltlich sind.
Nearly perfect sets in the n-fold products of graphs
Monika Perl
Opuscula Mathematica , 2007,
Abstract: The study of nearly perfect sets in graphs was initiated in [2]. Let $S \subseteq V(G)$. We say that $S$ is a nearly perfect set (or is nearly perfect) in $G$ if every vertex in $V(G)-S$ is adjacent to at most one vertex in $S$. A nearly perfect set $S$ in $G$ is called $1$-maximal if for every vertex $u \in V(G)-S$, $S \cup \{u\}$ is not nearly perfect in $G$. We denote the minimum cardinality of a $1$-maximal nearly perfect set in $G$ by $n_p(G)$. We will call the $1$-maximal nearly perfect set of the cardinality $n_p(G)$ an $n_p(G)$-set. In this paper, we evaluate the parameter $n_p(G)$ for some $n$-fold products of graphs. To this effect, we determine $1$-maximal nearly perfect sets in the $n$-fold Cartesian product of graphs and in the $n$-fold strong product of graphs.
POCKET MEDICINE - The Massachusetts General Hospital Handbook of Internal Medicine
Jeffrey Perl
University of Toronto Medical Journal , 2002, DOI: 10.5015/utmj.v80i1.859
Larval development, stages and an international comparison of husbandry parameters of the Vietnamese Mossy Frog Theloderma corticale (Boulenger, 1903) (Anura: Rhacophoridae)
A. Rauhaus,A. Gawor,R.G.B. Perl,S. Scheld
Asian Journal of Conservation Biology , 2012,
Abstract: We describe the larval development and stages of the locally threatened Vietnamese Mossy Frog Theloderma corticale, which is endemic to northern Vietnam. Diagnostic morphological characters are provided for Gosner (1960) larval stages 1-46. This is to our knowledge the first larval staging for the rhacophorid anuran genus Theloderma in general. As guideline for further breeding engagement with Theloderma representatives in an international scale, based on the species T. corticale as husbandry analogue, we further oppose larval development, captive reproduction and husbandry management both achieved under tropical conditions at the Amphibian breeding station of the Institute of Ecology and Biological Resources in Hanoi (Vietnam), and in Europe, at the amphibian breeding unit at Cologne Zoo (Germany). Observed ovipositions at Cologne Zoo took place from March to September and were initiated after increase of temperatures and humidity (increased spraying) subsequent to a hibernation phase in combination with raised water levels. The developmental time observed for T. corticale at 20°C was about 4.5 months. For providing a recent captive management overview, we furthermore compare our husbandry experiences and data on the reproductive biology of T. corticale with data from the literature.
Can the Existence of Dark Energy Be Directly Detected?
Perl, Martin L.
High Energy Physics - Phenomenology , 2008, DOI: 10.1142/S0217751X09047028
Abstract: The majority of astronomers and physicists accept the reality of dark energy and also believe that it can only be studied indirectly through observation of the motions of stars and galaxies. In this paper I open the experimental question of whether it is possible to directly detect dark energy through the presence of dark energy density. Two thirds of this paper outlines the major aspects of dark energy density as now comprehended by the astronomical and physics community. The final third summarizes various proposals for direct detection of dark energy density or its possible effects. At this time I do not have a fruitful answer to the question: Can the Existence of Dark Energy Be Directly Detected?
Page 1 /325185
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.