نتایج جستجو برای: cheetah
تعداد نتایج: 468 فیلتر نتایج به سال:
Determining the immunological phenotype of endangered and threatened populations is important to identify those vulnerable to novel pathogens. Among mammals, members of the order Carnivora are particularly threatened by diseases. We therefore examined the constitutive innate immune system, the first line of protection against invading microbes, of six free-ranging carnivore species; the black-b...
Open MPI provides an implementation of the MPI standard supporting communication over a range of highperformance network interfaces. Recently, Oak Ridge National Laboratory (ORNL) and Los Alamos National Laboratory (LANL) collaborated on creating a port of Open MPI for Gemini, the network interface for Cray XE and XK systems. In this paper, we present our design and implementation of Open MPI’s...
Cheetahs and certain other felids consistently ejaculate high proportions (≥ 60%) of malformed spermatozoa, a condition known as teratospermia, which is prevalent in humans. Even seemingly normal spermatozoa from domestic cat teratospermic ejaculates have reduced fertilizing capacity. To understand the role of sperm metabolism in this phenomenon, we conducted a comparative study in the normospe...
The collective cheetah (Acinonyx jubatus) population in zoological institutions has never been self-sustaining because of challenges in natural reproduction. A retrospective analysis of North American zoo-breeding records has revealed that >90% of litters produced since 2003 occurred in facilities 'off-display' from the public. We examined seminal, endocrine, and behavioral traits of 29 adult m...
Application-level networking is a promising software organization for improving performance and functionality for important network services. The xok/ExOS exokernel system includes application-level support for standard network services, while at the same time allowing application writers to specialize networking services. This paper describes how xok/ExOS's kernel mechanisms and library operat...
Agrobacterium-based transformation was used to introduce a promoter-less glucuronidase uidA gene (beta-glucuronidase; GUS) into Lotus japonicus. Transgenic plants were screened for GUS activation at different stages after inoculation with its symbiont, Mesorhizobium loti. Functional GUS fusion frequencies ranged from about 2 to 5% of the total number of transgenic lines. These lines provide exc...
A 15-year-old male North American cougar (Felis concolor) presented with a 2-day history of anorexia, restlessness, and dyspnea. White blood cell count (22.5 × 103 cells/μL) and absolute segmented neutrophil count (21.09 × 103 cells/μL) were increased, and BUN (143mg/dL), creatinine (6.3mg/dL), and phosphorus (8.5mg/dL) concentrations indicated chronic renal disease. Thoracic radiographs showed...
Establishing and maintaining protected areas (PAs) are key tools for biodiversity conservation. However, this approach is insufficient for many species, particularly those that are wide-ranging and sparse. The cheetah Acinonyx jubatus exemplifies such a species and faces extreme challenges to its survival. Here, we show that the global population is estimated at ∼7,100 individuals and confined ...
Whilst lead poisoning in raptors, scavenging birds and waterfowl is well studied and common knowledge, there is surprisingly little literature detailing the risk to mammalian scavengers and captive carnivores fed hunted meat. This case report describes the death of two captive cheetahs (Acinonyx jubatus jubatus) following acute onset of nervous symptoms. Clinical signs included hyper-excitabili...
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