scholarly journals Effect of adverse weather on neonatal caribou survival — a review

Rangifer ◽  
1986 ◽  
Vol 6 (2) ◽  
pp. 211 ◽  
Author(s):  
Frank L. Miller ◽  
Anne Gunn
Keyword(s):  
North America ◽  
Rangifer Tarandus ◽  
Causes Of Death ◽  
Circumstantial Evidence ◽  
Small Samples ◽  
Barren Ground ◽  
Adverse Weather ◽  
Calf Mortality ◽  
The Relationship ◽  
Postmortem Examinations

This paper reviews the relationship between adverse weather and neonatal caribou (Rangifer tarandus spp.) survival in North America by examining the available literature and our own findings. The viewpoint that adverse weather on the calving ground can result in major losses of newborn barren-ground caribou (R. t. groenlandicus) calves is largely unsupported. Published reports of calf mortality caused by adverse weather are questionable because causes of death were rarely determined by postmortem examinations. Circumstantial evidence associated with the small samples of dead calves does not support published assumptions that the mortality was weather related, or that high losses due to adverse weather are common events. The applicability of results from physiological testing are questionable, because the calves were restrained and the behaviour of unrestrained animals was ignored in the conclusions drawn from the tests. The relationship between adverse weather and calf mortality is more speculation than documentation yet often has been uncritically cited. In our view, healthy newborn barren-ground caribou are well adapted physiologically and behaviourally to cope with all but the most severe adverse weather.

Gastrointestinal helminths of woodland and barren ground caribou (Rangifer tarandus) in Canada, with keys to species

1989 ◽  
Vol 67 (9) ◽  
pp. 2253-2269 ◽  
Author(s):  
Michael Fruetel ◽  
Murray W. Lankester
Keyword(s):  
North America ◽  
Rangifer Tarandus ◽  
Gastrointestinal Nematodes ◽  
Gastrointestinal Helminths ◽  
Dictyocaulus Viviparus ◽  
Parasitic Helminths ◽  
Infective Larvae ◽  
Barren Ground ◽  
First Time ◽  
Common Parasite

A total of 21 species of parasitic helminths was recovered from wild and captive caribou. Gastrointestinal nematodes were represented by eight species of Ostertagiinae, four species of Nematodirinae, Trichostrongylus axei, T. vitrinus, Oesophagostomum venulosum, Trichuris ovis, Skrjabinema sp., and Capillaria sp. Other helminths included Dictyocaulus viviparus, Setaria yehi, and Moniezia sp. Nematodirus odocoilei, a common parasite of Odocoileus spp. is reported from caribou for the first time. Ostertagia leptospicularis is reported from North America for the first time. Illustrations and diagnostic keys are provided for the eggs, infective larvae, and adults of the gastrointestinal nematodes recovered from caribou.

scholarly journals Eimeria rangiferis (Protozoa: Eimeriidae) reported from caribou in Ameralik, West Greenland

Rangifer ◽  
2015 ◽  
Vol 35 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Karl Skírnisson ◽  
Christine Cuyler
Keyword(s):  
North America ◽  
Rangifer Tarandus ◽  
Fecal Samples ◽  
West Greenland ◽  
Barren Ground ◽  
The Past ◽  
Nematode Eggs ◽  
Rangifer Tarandus Groenlandicus

In recent decades the native Barren-ground caribou (Rangifer tarandus groenlandicus) south of the Godthaabs fjord (Nuup Kangerlua fjord) in West Greenland have mixed with semi-domesticated Norwegian reindeer (R. t. tarandus) imported in 1952 from Finnmark Norway and released onto the range of the Ameralik caribou population. Fecal samples from three calves of the Ameralik caribou population were examined for the presence of nematode eggs and eimerid oocysts. Two distinct nematode egg types were observed: the first, Nematodirella longissimespiculata, was found in all calves, while the second, a strongylid nematode, was detected in one calf. The coccidian eimerid Eimeria rangiferis was identified in all calves. This host-specific eimerid is found in Icelandic feral reindeer, which were also imported from Finnmark Norway. We suggest that Finnmark reindeer were the source of Eimeria rangiferis observed in Ameralik caribou today. There are three possible origins for the presence of N. longissimespiculata in Ameralik, 1) arrival with colonizing caribou from North America within the past 4000 years, 2) the 1952 introduction of semi-domesticated Norwegian reindeer, or 3) the current immigration of muskoxen.

Causes of death in beef cattle in southern Brazil

2021 ◽  
pp. 104063872110079
Author(s):  
Franciéli A. Molossi ◽  
Bianca S. de Cecco ◽  
Camila B. Pohl ◽  
Rogério B. Borges ◽  
Luciana Sonne ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Causes Of Death ◽  
Diagnostic Category ◽  
Diagnostic Value ◽  
Parasitic Diseases ◽  
Porto Alegre ◽  
Pathology Laboratory ◽  
Regional Location ◽  
Young Cattle ◽  
Postmortem Examinations

We determined the prevalence of diseases and pathogens associated with mortality in beef cattle in the State of Rio Grande do Sul, Brazil, based on pathology laboratory submissions. Postmortem examinations were conducted on 1,277 beef cattle that died between 2008 and 2018. Information regarding age, time of the year, breed, and regional location were analyzed statistically. Most cattle were from the surrounding region of Porto Alegre, and 78.7% of the analyzed cases had diagnostic value. The diagnostic category with most cases was infectious and/or parasitic diseases (60%), followed by toxic and toxicoinfectious (25%). Most cases occurred in the fall. Major disease conditions identified included hemoprotozoal infection (18.2%), rabies (8.2%), and plant intoxications by Senecio spp. (8.5%) and Pteridium arachnoideum (4.6%). Hemoprotozoal infection occurred at a higher frequency in young cattle, mainly in animals up to 1 y old. Intoxication by Senecio spp. was more frequent in cattle 2–3 y old.

scholarly journals Advances of ECG Sensors from Hardware, Software and Format Interoperability Perspectives

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 105
Author(s):  
Khaleel Husain ◽  
Mohd Soperi Mohd Zahid ◽  
Shahab Ul Hassan ◽  
Sumayyah Hasbullah ◽  
Satria Mandala
Keyword(s):  
Machine Learning ◽  
Heart Attack ◽  
Privacy Preservation ◽  
Causes Of Death ◽  
Clinical Settings ◽  
Data Format ◽  
Medical Institutions ◽  
Comprehensive Survey ◽  
Electrocardiogram Ecg ◽  
The Relationship

It is well-known that cardiovascular disease is one of the major causes of death worldwide nowadays. Electrocardiogram (ECG) sensor is one of the tools commonly used by cardiologists to diagnose and detect signs of heart disease with their patients. Since fast, prompt and accurate interpretation and decision is important in saving the life of patients from sudden heart attack or cardiac arrest, many innovations have been made to ECG sensors. However, the use of traditional ECG sensors is still prevalent in the clinical settings of many medical institutions. This article provides a comprehensive survey on ECG sensors from hardware, software and data format interoperability perspectives. The hardware perspective outlines a general hardware architecture of an ECG sensor along with the description of its hardware components. The software perspective describes various techniques (denoising, machine learning, deep learning, and privacy preservation) and other computer paradigms used in the software development and deployment for ECG sensors. Finally, the format interoperability perspective offers a detailed taxonomy of current ECG formats and the relationship among these formats. The intention is to help researchers towards the development of modern ECG sensors that are suitable and approved for adoption in real clinical settings.

Historical and phenological observations on the spread of Chaenorrhinum minus across North America

1983 ◽  
Vol 61 (1) ◽  
pp. 179-187 ◽  
Author(s):  
Mark P. Widrlechner
Keyword(s):  
North America ◽  
Rapid Onset ◽  
Herbarium Specimens ◽  
Reproductive Maturity ◽  
Phenological Data ◽  
Dispersal Mechanism ◽  
Rapid Spread ◽  
The Relationship

Through a review of floristic and taxonomic literature and an examination of over 1500 herbarium specimens, this report documents the rapid spread of Chaenorrhinum minus (L.) Lange along railroads across North America. The relationship between C. minus and railroads is described and phenological data on flowering and fruiting are presented. The combination of an effective dispersal mechanism and the rapid onset of reproductive maturity contributes to the species' adaptive success.

DIFFERENCES IN PERCEPTION OF CAUSES OF CAMEL CALF LOSSES BETWEEN PASTORALISTS AND SCIENTISTS

2003 ◽  
Vol 39 (4) ◽  
pp. 363-378 ◽  
Author(s):  
B. A. KAUFMANN
Keyword(s):  
Causes Of Death ◽  
Management Practices ◽  
Production Systems ◽  
Quantitative Information ◽  
Knowledge Systems ◽  
Complete Understanding ◽  
Underlying Causes ◽  
Calf Mortality ◽  
Management Changes ◽  
Calf Rearing

Management deficiencies on the part of the pastoralists were claimed to be one of the major causes of the high losses of camel (Camelus dromedarius) calves contributing to low productivity of camel herds. In the present study, calf deaths, and the causes thereof, were analysed in connection with pastoral calf management in order to assess possible relationships. Progeny history data on 1506 Rendille, 789 Gabra and 1206 Somali calves born between 1980 and 1995 provided quantitative information on losses and the underlying causes. Assessment of the causes of death, and analysis of related management practices, led to suggestions for management changes. In feedback seminars with pastoralists, however, it became apparent that these management changes would not be adopted because they contradicted the pastoralists' assumptions on the causes of calf mortality. The discussions revealed that differences between pastoralists' and scientists' perceptions determined different opinions on proper calf-rearing management practices. Combining different knowledge systems offers the possibility of a more complete understanding, which is required for the derivation of adoptable calf mortality-reducing interventions that are compatible with the knowledge and production systems of the pastoralists.

ANALYSIS OF FETAL AND NEONATAL DEATHS IN 4117 CONSECUTIVE BIRTHS

PEDIATRICS ◽  
1950 ◽  
Vol 5 (2) ◽  
pp. 184-192
Author(s):  
HERBERT C. MILLER
Keyword(s):  
Cause Of Death ◽  
Premature Infants ◽  
Neonatal Death ◽  
Causes Of Death ◽  
Neonatal Period ◽  
Full Term ◽  
Maternal Complications ◽  
Term Infants ◽  
Neonatal Deaths ◽  
Postmortem Examinations

An analysis of the significant causes of death in 4117 consecutive births was made; there were 66 fetal deaths and 85 neonatal deaths. A significant cause of death was determined in 51 fetuses and 56 live-born infants. Eighty-five per cent of the live-born infants who weighed over 1000 gm. at birth and had postmortem examinations had causes of death which were considered to be significant. Almost half of the live-born premature infants with birth weights between 1000 and 2500 gm. were considered to have had more than one significant cause of death. The so-called significant causes of death among live-born infants differed from those determined for fetuses dying before birth. Among the former, pathologic conditions in the infants were determined four times more frequently than in those dying before birth and, in the latter, maternal complications of pregnancy and labor were diagnosed as significant causes of death five times more frequently than in infants dying in the neonatal period. Hyaline-like material in the lung was considered to be the most frequent significant cause of death in live-born premature infants; congenital malformation and anoxia resulting from complications of labor were the most frequently determined significant causes of death in live-born full term infants. No differences were found in the significant causes of death in premature and full term fetuses. Anoxia resulting from accidental and unexpected interruption of the blood flow in the placenta and umbilical cord and from dystocia was the most frequently determined significant cause of death in both groups. A plea has been made for the adoption by obstetricians, pathologists and pediatricians of a formal uniform plan of classifying the causes of fetal and neonatal death which would divest current efforts to determine the cause of death of as much vague terminology and arbitrary opinion as possible.

scholarly journals Agreement between premortem and postmortem diagnoses in patients with acquired immunodeficiency syndrome observed at a brazilian teaching hospital

1997 ◽  
Vol 39 (4) ◽  
pp. 217-222 ◽  
Author(s):  
Aércio Sebastião BORGES ◽  
Marcelo Simão FERREIRA ◽  
Sérgio de Andrade NISHIOKA ◽  
Marco Túlio Alvarenga SILVESTRE ◽  
Arnaldo Moreira SILVA ◽  
...  
Keyword(s):  
Acquired Immunodeficiency Syndrome ◽  
Causes Of Death ◽  
Single Case ◽  
Postmortem Examination ◽  
Multiple Infections ◽  
Postmortem Diagnosis ◽  
Clinical Diagnoses ◽  
Acquired Immunodeficiency ◽  
Immunodeficiency Syndrome ◽  
Postmortem Examinations

Acquired immunodeficiency syndrome (AIDS) is one of the main causes of death in adults worldwide. More commonly than in the general population, in patients with AIDS there is substantial disagreement between causes of death which are clinically suspected and those established by postmortem examination. The findings of 52 postmortem examinations were compared to the premortem (clinical) diagnoses, and there was 46% agreement between them. Fifty two percent of the patients had more than one postmortem diagnosis, and 48% had at least one AIDS-related disease not suspected clinically. Cytomegalovirus infection was the commonest (30.7%) autopsy finding, but not a single case had been suspected premortem. Bacterial infection, tuberculosis, and histoplasmosis were also common, sometimes not previously suspected, postmortem findings. This study shows that multiple infections occur simultaneously in AIDS patients, and that many among them are never suspected before the postmortem examination. These findings suggest that an aggressive investigation of infections and cancers should be done in patients with AIDS, particularly in those who do not respond to therapy of an already recognized condition

Does Civil Society Matter? Governance in Contemporary India

2006 ◽  
Vol 39 (2) ◽  
pp. 456-457
Author(s):  
Reeta Chowdhari Tremblay
Keyword(s):  
Civil Society ◽  
North America ◽  
Case Studies ◽  
New Delhi ◽  
Actual Case ◽  
The North ◽  
Fresh Perspective ◽  
The Subject ◽  
The Relationship ◽  
Theoretical Conceptualization

Does Civil Society Matter? Governance in Contemporary India, Rajesh Tandon and Ranjita Mohanty, eds., New Delhi: Thousand Oaks, London: Sage Publications, 2003, pp. 363.In the last decade in North America, there has been an explosion of books on the subject of civil society. Like so many other concepts in contemporary political science, the notion of civil society has been imported to analyze other polities outside the North American hemisphere, and India is no exception. However, Tandon and Mohanty's edited book presents a fresh perspective by combining academic analysis with that of on-the-ground practitioners to examine the relationship between civil society and governance. The book is divided into two parts: the first deals with the theoretical conceptualization of civil society and the second with actual case studies.

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