The most unique feature of Earth is the existence of life, and the most extraordinary feature of life is its diversity. Approximately 9 million types of plants, animals, protists and fungi inhabit the Earth. So, too, do 7 billion people.
View Article and Find Full Text PDFThis research assessed: 1) whether patients thought to have sleep disordered breathing would have more severe symptoms if they were taking opioids; 2) whether severity of sleep disordered breathing was associated with class or dose of opioid; and 3) whether pain intensity was associated with sleep disordered breathing. A descriptive cross-sectional study of patients referred for assessment of sleep disorders was conducted. Data were collected on a total of 419 subjects (no pain [n = 171], chronic pain without opioid treatment [n = 187], and chronic pain with opioid treatment [n = 61]).
View Article and Find Full Text PDFUnderstanding the genetic architecture of traits involved in premating isolation between recently diverged lineages can provide valuable insight regarding the mode and tempo of speciation. The repeated coevolution of male courtship song and female preference across the species radiation of Laupala crickets presents an unusual opportunity to compare the genetic basis of divergence across independent evolutionary histories. Previous studies of one pair of species revealed a polygenic basis (including a significant X chromosome contribution) to quantitative differences in male song and female acoustic preference.
View Article and Find Full Text PDFThe RAS (renin-angiotensin system) is now recognized as an important regulator of liver fibrosis and portal pressure. Liver injury stimulates the hepatic expression of components of the RAS, such as ACE (angiotensin-converting enzyme) and the AT(1) receptor [AngII (angiotensin II) type 1 receptor], which play an active role in promoting inflammation and deposition of extracellular matrix. In addition, the more recently recognized structural homologue of ACE, ACE2, is also up-regulated.
View Article and Find Full Text PDFThis service evaluation aimed to characterise the referrals to the premature ovarian failure clinic, including the type of referral and patient needs, in order to plan for future service provision. The majority of women seen in the clinic experienced idiopathic premature ovarian failure, were aged 30-39 and were nulliparous at the time of diagnosis. Our service requires to be tailored to their needs.
View Article and Find Full Text PDFRecognising that plant leaves are the fundamental productive units of terrestrial vegetation and the complexity of different environments in which they must function, this review considers a few of the ways in which these functions may be measured and potentially scaled to the canopy. Although canopy photosynthetic productivity is clearly the sum of all leaves in the canopy, we focus on the quest for 'economical insights' from measurements that might facilitate integration of leaf photosynthetic activities into canopy performance, to better inform modelling based on the 'insights of economics'. It is focussed on the reversible downregulation of photosynthetic efficiency in response to light environment and stress and summarises various xanthophyll-independent and dependent forms of photoprotection within the inner and outer canopy of woody plants.
View Article and Find Full Text PDFAm J Alzheimers Dis Other Demen
November 2011
This study determined the sensitivity and specificity of the telephone-administered Minnesota Cognitive Acuity Screen (MCAS) to distinguish mild cognitive impairment (MCI) from healthy controls (HCs) and from Alzheimer's disease (AD). A total of 100 individuals with MCI, 50 individuals with possible/probable AD, and 50 HCs were screened to exclude medical and psychiatric conditions affecting cognition. In-office evaluation included neuropsychological testing, neurologic examination, and neurodiagnostic work-up.
View Article and Find Full Text PDFWe assessed the outcomes of ovarian stimulation in a two-day egg collection (EC) week with preimplantation genetic diagnosis (PGD) cycles (N = 307) compared to a five-day EC week with conventional in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycles (N = 2,417). The mean (SD) age of women undergoing PGD was 34 (3.97) and 35 (3.
View Article and Find Full Text PDFBioorg Med Chem Lett
November 2011
The synthesis, evaluation, and structure-activity relationships of a set of related constrained diaminopropane inhibitors of BACE-1 are described. The full in vivo profile of an optimized inhibitor in both normal and P-gp deficient mice is compared with data generated in normal rats.
View Article and Find Full Text PDFFor more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses questioned the generality of hump-shaped patterns, these syntheses have been criticized for failing to account for methodological differences among studies.
View Article and Find Full Text PDFFew data are available describing the photosynthetic parameters of the leaves of tropical montane cloud forests (TMCF). Here, we present a study of photosynthetic leaf traits (V(cmax) and J(max)), foliar dark respiration (R(d)), foliar nitrogen (N) and phosphorus (P), and leaf mass per area (LMA) throughout the canopy for five different TMCF species at 3025 m a.s.
View Article and Find Full Text PDFSexual selection is a powerful evolutionary force shaping mate choice phenotypes, initiating phenotypic shifts resulting in (or reinforcing) population divergence and speciation when such shifts reduce mating probabilities among divergent populations. In the Hawaiian cricket genus Laupala, pulse rate of male calling song, a conspicuous mating signal, differs among species, potentially behaving as a speciation phenotype. Populations of the widespread species Laupala cerasina show variation in pulse rate.
View Article and Find Full Text PDFPatients who have diagnoses of a major mental illness and an antisocial personality disorder present administrative, clinical, legal, and ethical challenges. Based on an actual case, the authors discuss how clinicians could fulfill the obligation to the patient, mental health system, judicial system, and the community under these circumstances. We explore how clinical presentation of symptomatology and criminal behavior contribute to challenges in determining psychiatric care.
View Article and Find Full Text PDFIn his classic study in the Siskiyou Mountains (Oregon, USA), one of the most botanically rich forested regions in North America, R. H. Whittaker (1960) foreshadowed many modern ideas on the multivariate control of local species richness along environmental gradients related to productivity.
View Article and Find Full Text PDFEur J Drug Metab Pharmacokinet
September 2011
Apixaban is a potent, highly selective, reversible, oral, direct factor Xa (fXa) inhibitor in development for thrombosis prevention and treatment. The preclinical pharmacokinetic (PK) attributes of apixaban feature small volume of distribution (Vd), low systemic clearance (CL), and good oral bioavailability. Apixaban is well absorbed in rat, dog, and chimpanzee, with absolute oral bioavailability of approximately 50% or greater.
View Article and Find Full Text PDFNon-breeding Nazca booby adults exhibit an unusual and intense social attraction to non-familial conspecific nestlings. Non-parental Adult Visitors (NAVs) seek out and approach unguarded nestlings during daylight hours and display parental, aggressive, and/or sexual behavior. In a striking parallel to the "cycle of violence" of human biology, degree of victimization as a nestling is strongly correlated with frequency of future maltreatment behavior exhibited as an adult.
View Article and Find Full Text PDFObjectives: The globus pallidus internus (GPi) has been the primary target for deep brain stimulation (DBS) to treat severe medication-refractory dystonia. Some patients with primary cervical or segmental dystonia develop subtle bradykinesia occurring in previously nondystonic body regions during GPi DBS. Subthalamic nucleus (STN) DBS may provide an alternative target choice for treating dystonia, but has only been described in a few short reports, without blinded rating scales, statistical analysis, or detailed neuropsychological studies.
View Article and Find Full Text PDFSpecies with relatively narrow niches, such as plants restricted (endemic) to particular soils, may be especially vulnerable to extinction under a changing climate due to the enhanced difficulty they face in migrating to suitable new sites. To test for community-level effects of climate change, and to compare such effects in a highly endemic-rich flora on unproductive serpentine soils vs. the flora of normal (diorite) soils, in 2007 we resampled as closely as possible 108 sites originally studied by ecologist Robert H.
View Article and Find Full Text PDFA study of general and specialist mental health and psychology service provider records confirms very high rates of utilization by a population of survivors of severe paediatric traumatic brain injury.
View Article and Find Full Text PDFThe Formosan subterranean termite, Coptotermes formosanus Shiraki, and the Asian subterranean termite, Coptotermes gestroi (Wasmann), are both pests of wood in service in Hawaii and Florida. We conducted a laboratory study using method modified from those described in standard E1-09 of the American Wood Protection Association (AWPA 2009) to assess the termite resistance of three commercially available wood species used in regions of the USA where both termite species occur: Douglas fir, Pseudotsuga menziessii, southern yellow pine, Pinus spp. and redwood, Sequoia sempervirens.
View Article and Find Full Text PDFBamboo is widely grown and utilized as a construction material around the world, particularly in the tropics. At present, there are about 70 bamboo species and varieties recorded from Hawaii. The objective of our study was to determine the relative resistance of six Hawaii-grown bamboo species to attack by Coptotermes formosanus Shiraki and Coptotermes gestroi (Wasmann).
View Article and Find Full Text PDFHeterocyclic replacement of the isophthalamide phenyl ring in hydroxyethylamine (HEA) BACE-1 inhibitors was explored. A variety of indole-1,3-dicarboxamide HEAs exhibited potent BACE-1 enzyme inhibition, but displayed poor cellular activity. Improvements in cellular activity and aspartic protease selectivity were observed for 7-azaindole-1,3-dicarboxamide HEAs.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
November 2010
Downscaling from the predictions of general climate models is critical to current strategies for mitigating species loss caused by climate change. A key impediment to this downscaling is that we lack a fully developed understanding of how variation in physical, biological, or land-use characteristics mediates the effects of climate change on ecological communities within regions. We analyzed change in understory herb communities over a 60-y period (1949/1951-2007/2009) in a complex montane landscape (the Siskiyou Mountains, Oregon) where mean temperatures have increased 2 °C since 1948, similar to projections for other terrestrial communities.
View Article and Find Full Text PDFStud Health Technol Inform
April 2011
Modern Electronic Medical Record (EMR) systems often integrate large amounts of data from multiple disparate sources. To do so, EMR systems must align the data to create consistency between these sources. The data should also be presented in a manner that allows a clinician to quickly understand the complete condition and history of a patient's health.
View Article and Find Full Text PDF