3,113 research outputs found
Age, growth, and reproduction of dolphinfish (Coryphaena hippurus) caught off the coast of North Carolina
Age, growth, and reproductive data were obtained from dolphinfish (Coryphaena hippurus, size range: 89 to 1451 mm fork length [FL]) collected between May 2002 and May 2004 off North Carolina. Annual increments from scales (n=541) and daily increments from sagittal otoliths (n=107) were examined; estimated von Bertalanffy parameters were L∞ (asymptotic length)=1299 mm FL and k (growth coefficient)=1.08/yr. Daily growth increments reduced much of the residual error in length-at-age estimates for age-0 dolphinfish; the estimated average growth rate was
3.78 mm/day during the first six months. Size at 50% maturity was slightly smaller for female (460 mm FL) than male (475 mm FL) dolphinfish. Based on monthly length-adjusted gonad weights, peak spawning occurs from April through July off North Carolina; back-calculated hatching dates from age-0 dolphinfish and prior reproductive studies on the east coast of Florida indicate that dolphinfish spawning occurs year round off the U.S. east coast and highest levels range from January through June. No major changes in length-at-age or size-at-maturity have occurred since the early 1960s, even after substantial increases in fishery landings
Task Specific Uncertainty in Coordinate Measurement
Task specific uncertainty is the measurement uncertainty associated with the measurement of a specific feature using a specific measurement plan. This paper surveys techniques developed to model and estimate task specific uncertainty for coordinate measuring systems, primarily coordinate measuring machines using contacting probes. Sources of uncertainty are also reviewed
The Effects of Exercise on Lung Ventilation and Breathing Rate
Breathing rates and ventilatory data obtained from young subjects of college age during exercise conditions imposed by riding a bicycle ergometer and using standard physiological laboratory equipment and a polygraph indicate that this type of study is feasible during standard laboratory experiences
Childhood Trauma: Considering Diagnostic and Culturally Sensitive Treatment Approaches for Deaf Clients
As the American Psychiatric Association\u27s Diagnostic and Statistical Manual (DSM-IV-TR, 1994) is under revision, the complexity of diagnosing and treating childhood trauma with the current trauma-related diagnoses, including Post-Traumatic Stress Disorder (PTSD) and Acute Stress Disorder (ASD)is being debated (van der Kolk,2 005). Regarding deaf individuals, significant differences in symptom presentation (e.g., avoidance/numbing, hyperarousal, and re-experiencing symptoms) suggest that caution is needed when using the current criterion for the diagnosis of PTSD within this population (Schild & Dalenberg, 2011). Despite diagnostic uncertainties, it is generally accepted that regardless of hearing status, early childhood is a critical period for the development of relationships and attachment styles which profoundly affect the later development of interpersonal relationships (Bowlby, 1988; Ainsworth, Bell, & Stayton, 1971).
The existing research acknowledges that in comparison to hearing individuals, deaf children are exposed to interpersonal traumas (e.g., neglect, physical abuse, sexual abuse and emotional abuse) at greater rates of prevalence (Sullivan & Knutson,1998). Furthermore, significant behavioral and emotional problems have been associated with the experience of abuse for deaf and hard-of-hearing children, including increased symptoms of PTSD, anxiety and depression (Sullivan & Knutson,1998). It is well documented that over ninety percent of deaf children are born to hearing parents, a factor thought to contribute to impaired communication in the home, creating an environment in which a deaf child is uniquely vulnerable to abuse (LaBarre, 1998). Indeed, Ridgeway (1993) contends that due to the high rate of childhood abuse within the deaf community, some children may view the abuse as part of being deaf. Given the prevalence of childhood trauma, the invasive effects of childhood maltreatment, the potential for subsequent behavioral and emotional problems there is clearly a need for intervention. Within this context play therapy is one treatment modality that is considered in this paper as potentially effective in treating deaf children who have experienced trauma
"A Star of the First Magnitude within the Philosophical World": Introduction to Life and Work of Gustav Teichmüller
In 1871, the German philosopher Gustav Teichmüller (1832-1888) moved from his Basel chair to the much better paid chair in Tartu, and taught there until his untimely death. Besides philosophy, he had studied various disciplines, including the natural sciences. In the preparation of his own philosophy, he explored the history of philosophy for more than twenty years and made pioneering contributions to the history of concepts. Only by the early-1880s did he begin to elaborate his "new philosophy", an original version of personalism, both anti-idealist and anti-materialist. He did this in three major works (Die wirkliche und die scheinbare Welt 1882, Religionsphilosophie 1886, Neue Grundlegung der Psychologie und Logik, posthumous 1889) which built upon each other. Unwritten remained the keystone of his philosophy, the Philosophie des Christentums, in which Teichmüller wanted to show that the philosophical contents of Christianity were encapsulated by his own personalism. One major objective of his philosophy, as I see it, was regaining reality---in particular the reality of the person---after it had been lost in the wake of the failure of modern representationalism. Notwithstanding its coherentist elements, I see Teichmüller's philosophy as a precursor of direct realism. Although he fell into oblivion soon after, his thoughts were received throughout Europe, notably by Friedrich Nietzsche, Aleksey Kozlov and Nicholas Lossky. His extensive literary remains, which are kept in Basel, remain to be explored
Distribution and genetic structure of pocket gophers (Genus Geomys) in Kansas
The development of informed management practices and insightful research depends not only on an understanding of species natural history and ecology, but information regarding the distributions of these species and how they interact with adjacent taxa. The study of a species distribution can become complicated if the geographic variation within the species is not understood. Pocket gophers, including those in the genus Geomys, display morphological and chromosomal variation across their range, even within the same species. Genetic techniques, including Amplified Fragment Length Polymorphism (AFLP), have clarified population relationships and characterized zones of contact. Previous studies have suggested 2 species and up to 5 subspecies of Geomys in Kansas. Researchers have documented 1 contact zone in Osborne County between a population with small body size and lighter pelage in the west and a population that is larger and darker in the east. However, there has been little consensus over the taxonomic status of these 2 populations. Also, there has not been sufficient research that documents the presence and distribution of other distinct Geomys populations in Kansas. For my study, 143 pocket gophers were captured from throughout Kansas. Tissue samples of these specimens, including 1 additional sample from Lincoln County, Nebraska, were analyzed with AFLP by using 6 primer pair combinations. These data were then evaluated by using Principle Coordinate Analysis, the program STRUCTURE, and an unrooted phylogram generated by using distance values to determine the presence of genetically distinct taxa, their distributions in Kansas, and any level of genetic admixture among populations. Results were considered following the genetic species concept. Consensus among all 3 analyses suggested the presence of 4 genetically cohesive populations in Kansas with each having different degrees of genetic isolation. My research suggested that the northwestern taxonomic group, Geomys halli, was isolated genetically and was functioning as a species. Other taxa in Kansas were suggested to include, G. bursarius majusculus (eastern), G. b. industrius or major (south central), and G. jugossicularis (southwestern). The northwestern population was likely in secondary contact with the southwestern and eastern populations, suggested by a zone of sympatry, 1 hybrid, and little admixture. Determination of taxonomic rank was limited because the interactions among these taxa are unknown outside of Kansas
Bound-free Spectra for Diatomic Molecules
It is now recognized that prediction of radiative heating of entering space craft requires explicit treatment of the radiation field from the infrared (IR) to the vacuum ultra violet (VUV). While at low temperatures and longer wavelengths, molecular radiation is well described by bound-bound transitions, in the short wavelength, high temperature regime, bound-free transitions can play an important role. In this work we describe first principles calculations we have carried out for bound-bound and bound-free transitions in N2, O2, C2, CO, CN, NO, and N2+. Compared to bound ]bound transitions, bound-free transitions have several particularities that make them different to deal with. These include more complicated line shapes and a dependence of emission intensity on both bound state diatomic and atomic concentrations. These will be discussed in detail below. The general procedure we used was the same for all species. The first step is to generate potential energy curves, transition moments, and coupling matrix elements by carrying out ab initio electronic structure calculations. These calculations are expensive, and thus approximations need to be made in order to make the calculations tractable. The only practical method we have to carry out these calculations is the internally contracted multi-reference configuration interaction (icMRCI) method as implemented in the program suite Molpro. This is a widely used method for these kinds of calculations, and is capable of generating very accurate results. With this method, we must first of choose which electrons to correlate, the one-electron basis to use, and then how to generate the molecular orbitals
Editor\u27s Preface, Table of Contents, and List of Attendees
These proceedings contain papers presented in the sixth annual Kansas State University Conference on Applied Statistics in Agriculture, held in Manhattan, Kansas, April 24 through 26, 1994.
The Quasi-Public Corporation and Constitutional Revision--Formula for Urban Community Development in Florida
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