cssi/SciSciGPT-SciSciNet huggingface dataset:
Linear Erosive Herpes Simplex Virus Infection in Immunocompromised Patients: The “Knife-Cut Sign”

Herpes simplex virus in immunocompromised patients may be misdiagnosed because of its atypical presentation. We present 3 cases of herpes simplex virus presenting as intertriginous fissures similar to the "knife-cut" ulcers associated with metastatic Crohn's disease. Our experience suggests that intertriginous fissures due to herpes simplex virus are recognizable patterns of viral infections in immunocompromised hosts.
Serum PCB concentrations in residents of Calcasieu and Lafayette Parishes, Louisiana with comparison to the U.S. population.

Abstract In 2002, a cross-sectional study designed to compare the serum dioxin toxic equivalent concentrations (TEQ) of a population-based sample of Calcasieu Parish, Louisiana residents, to Lafayette Parish was conducted. The mono-ortho polychlorinated biphenyls (PCBs) were measured in order to calculate the TEQ. We compared the sum of lipid adjusted serum concentrations of 27 PCB congeners (total PCBs) in residents of these two parishes and also by their demographic characteristics. The geometric means (GM) [standard errors (SE)] of the concentrations (ng g −1 lipids) of total PCBs in participants from Calcasieu Parish and Lafayette Parish were 154 (11.8) and 168.6 (20.8) (T-test p = 0.54), respectively. Various percentiles of the distribution of serum total PCB concentrations were similar in the two parishes. After adjusting by age and race in the ANCOVA regression model, the adjusted GM for the lipid adjusted total PCBs was statistically higher in the residents in Lafayette than in Calcasieu Parish regardless of age or race ( P = 0.007). The adjusted GM of lipid adjusted total PCBs for African Americans was significantly higher than for Whites ( p P
Velocity-time reciprocity in the perception of motion: foveal and peripheral determinations.

Abstract Motion thresholds were determined for durations between 0.025 and 5 sec in the fovea and periphery. For intermediate durations of movement between 0.1 and 1.0 sec. threshold is determined by a constant displacement of the stimulus. For shorter and longer durations, threshold is determined by a fixed velocity. Similar characteristics are displayed by motion detection mechanisms in the fovea and periphery. The close correspondence between resolution and motion thresholds for intermediate durations in both the fovea and the perphery is discussed.
Suppression of Rauscher virus-induced leukemia by L-asparaginase.

Abstract Murine leukemia induced by Rauscher virus was shown to be responsive to L-asparaginase from E. coli . When administered in small multiple doses, asparaginase suppressed splenomegaly and prolonged survival, in the absence of a concomitant inhibition of viremia. Asparagine treatment partially suppressed the leukemic process, and failed to block the antileukemic effect of asparaginase.
Detailed chemical kinetics model for supercritical water oxidation of C1 compounds and H2

A detailed chemical kinetics model comprising 148 reversible elementary reactions for the supercritical water oxidation (SCWO) of methane, methanol, carbon monoxide and hydrogen was developed. Rate constants were taken from previous critical evaluations. The Lindemann model, at times modified with a broadening parameter, was used to account for the effects of pressure on the kinetics of unimolecular reactions. Model predictions were compared with published experimental SCWO kinetics data for 450--650 C and 240--250 atm. The model correctly predicted global reaction orders for all four fuels to within their uncertainties. In addition, the model correctly predicted that the global reaction orders for O{sub 2} during methanol and hydrogen oxidation were essentially zero, and that the O{sub 2} concentration had the greatest effect on the methane oxidation rate. The pseudo-first-order rate constants predicted by the model were consistently higher than the experimental values, but the global activation energies were predicted correctly for methane oxidation and for CO and H{sub 2} oxidation t high temperatures. The model`s predictions generally became worse as the temperature decreased toward the critical point of water. A sensitivity analysis revealed that fewer than 20 elementary reactions largely controlled the oxidation kinetics for the compounds studied. Nearly half ofmore » these reactions involved HO{sub 2}, which is an important free radical for SCWO. Quantitative agreement with the experimental methane conversions was obtained by adjusting the preexponential factors for three elementary reactions within their uncertainties. It could also be obtained by using the JANAF value (0.5 kcal/mol) for the standard heat of formation of HO{sub 2}, but this value is lower than other recently recommended values.« less
CIPROFLOXACIN TREATMENT ELIMINATES MYCOPLASMA IN CONTAMINATED CHANNEL CATFISH OVARY CELLS

Abstract A temperature-sensitive mycoplasma that was present in the channel catfish ovary (CCO) cell line and in a thymidine kinase-negative mutant of this cell line (CCOBr) was effectively eliminated from the cultures by adding ciprofloxacin, a 4-fluoroquinolone, to the culture medium. Both cell lines have remained mycoplasma free after 3 years of continuous culture. A commercially available genetic probe to mycoplasma ribosomal RNA was used to monitor mycoplasma contamination and evaluate the effectiveness of the treatment.
Intrinsic stress tensor of polymer solutions in laminar flow. Modified elastic dumb-bell model with hydrodynamic interaction†

The simplified necklace or the equivalent modified elastic dumb-bell model with consideration of hydrodynamic interaction among the beads and its change with coil expansion was used for the calculation of the intrinsic stress tensor in laminar flow with transverse and parallel gradient as function of the conventional gradient and the dimensionless gradient parameter β. The expansion of the Gaussian coil in flow first increases and then decreases the hydrodynamic interaction. As a consequence the intrinsic viscosity [η]tr of sufficiently large macromolecules and the effective average hydrodynamic resistance coefficient Λ of the bead show first a decrease to a minimum and a subsequent gradually slower increase with the gradient. In laminar flow with parallel gradient this effect yields a deformational instability which may play some role in drag reduction of turbulent flow by polymer additives. Experimental evidence will have to conform or to refute these two interdependent phenomena. In the latter case, one suspects that the neglect of anisotropy of hydrodynamic interaction is the main cause of the unrealistic predictions of intrinsic hydrodynamic properties of polymer solutions. An Hand des vereinfachten Perlschnur- oder des aquivalenten modifizierten elastischen Hantelmodells unter Berucksichtigung der hydrodynamischen Wechselwirkung zwischen den Segmenten und deren Anderung als Folge der Knauelverformung wurde der Eigenspannungstensor in laminarer Stromung mit Transversal- und Parallelgradienten als Funktion des Gradienten und des dimensionslosen Gradientenparameters β berechnet. Die durch die Stromung verursachte Streckung des Gaus'schen Knauels macht sich zuerst in einer Erhohung und nachher in einer Erniedrigung der hydrodynamischen Wechselwirkung bemerkbar. Als Folge davon sinken als Funktion des Gradienten vorerst die Viskositatszahl [η]tr von ausreichend langen Makromolekulen und der effektive mittlere hydrodynamische Widerstandskoeffizient des Einzelsegmentes Λ bis zu einem Minimum ab, um nachher wesentlich langsamer anzusteigen. In der laminaren Stromungmit Parallelgradienten ausert sich dieser Effekt in einer Verformungsinstabilitat, die eventuell einc Rolle in der durch minimale Polymerzusatze verursachten Widerstandsver-minderung des turbulenten Flielsens spielt. Die Existenz dieser zwei eng verknupften Phanomene kann nur durch Experimente bewiesen oder widerlegt werden. Im letzteren Falle kann man vermuten, das die Vernachlassigung der sicher vorhandenen Anisotropie der hydrodynamischen Wechselwirkung in fast allen bisherigen Betrachtungen dic Haupt-verantwortung fur die fehlerhafte Voraussage der hydrodynamischen Effekte verdunnter Losungen zu tragen hat.
SICKLE CELL DISEASE

Abstract In the primary care setting, anemia in young women is encountered frequently. Although most often it is due to iron-deficiency anemia, hemoglobinopathies must also be considered, particularly in African-American and other minority women. Sickle cell syndromes, which are the most common and have the most serious sequelae, are reviewed in this article. Specifically, this article reviews the pathophysiology, screening, clinical manifestations, implications in pregnancy, and the most recent therapies of sickle cell disease.
Physiological changes in membrane-expressed platelet factor 4: Implications in heparin-induced thrombocytopenia

Abstract Background Many heparin-induced thrombocytopenia (HIT) antibodies cause platelet activation in the serotonin release assay (SRA) in the absence of heparin. This in vitro observation may help unravel the mechanism of delayed-onset HIT, where seropositive patients develop thrombocytopenia and associated thrombosis after cessation of heparin. Objective Studies were conducted to examine the relationship between platelet environment, surface PF4 expression, and the extent of heparin-independent platelet activation in the SRA. Methods Ex vivo platelets were washed and labeled for SRA, then used either before or after 45 minutes of recovery at 37 °C. HIT antibody-mediated serotonin release in the absence of heparin was compared to the extent of surface staining of the platelets with fluorescent anti-human PF4 antibodies. Results Handling of platelets for in vitro studies resulted in transient expression of surface PF4, and it was during this interval that platelets were most sensitive to activation by HIT antibodies in the absence of heparin. Heparin-independent platelet activation was attenuated when SRA-positive specimens were retested after platelets were incubated 45 minutes at 37 °C. Surface PF4 expression was diminished on the rested platelets, compared to the same platelets labeled immediately after handling. Thus compared to rested platelets, mildly activated platelets had elevated surface PF4 expression and a higher level of HIT antibody-mediated, heparin-independent platelet activation. Conclusion Surface expression of PF4 reflects HIT antigen presentation, and varies with the physiological state of platelets. Thus there can be differences in HIT antibody target availability among patients which may explain the variability in consequences of HIT antibody seropositivity.
Advances in the chemistry of small molecule fluorescent probes

Small molecule fluorophores are essential tools for chemical biology. A benefit of synthetic dyes is the ability to employ chemical approaches to control the properties and direct the position of the fluorophore. Applying modern synthetic organic chemistry strategies enables efficient tailoring of the chemical structure to obtain probes for specific biological experiments. Chemistry can also be used to activate fluorophores; new fluorogenic enzyme substrates and photoactivatable compounds with improved properties have been prepared that facilitate advanced imaging experiments with low background fluorescence. Finally, chemical reactions in live cells can be used to direct the spatial distribution of the fluorophore, allowing labeling of defined cellular regions with synthetic dyes.
Communication Energy Aware Sensor Selection in IoT Systems

To prolong the IoT system lifetime, a system should minimize the energy comsumption on devices. The RF communication energy cost is dependent on the communication distance. This paper presents a communication distance aware methodology for mapping and deploying IoT applications on sensor devices in a physical environment. Given a flow-based service process, WuKong will select and set up the most efficient configuration for the process. The sensor selection methodology reported in this paper takes the communication distance into consideration in order to minimize the communication energy consumption. We define a quadratic programming based problem model, and present algorithms based on the Integer Linear Programming (ILP) model. We show the algorithm performance by simulation.
ABDOMINAL AORTIC SURGERY WITH CONCOMITANT CONGENITAL RENAL FUSION

The association between aortic pathology and congenital renal fusion adds little morbidity or mortality to the natural history of either entity. Nevertheless, it complicates the management of aortic pathology, specifically degenerative atherosclerotic disease. The therapeutic goal is to resect the aneurysm or bypass the occlusive segment while preserving renal function. Important principles in the management of these difficult patients include accurate preoperative detection and characterization of the renal abnormality, complete familiarity with the likely anatomic variations associated with this anomaly, adequate exposure of the aortic lesion while preserving renal perfusion, and avoidance of injury to a frequently abnormally located collecting system. In this review we report two cases of abdominal aortic aneurysm associated with congenital renal fusion. The principles of management are thoroughly discussed, and guidelines aimed at facilitating decisions made during the clinical treatment of these difficult patients are suggested.
Forecasting with balanced state space representations of multivariate distributed lag models

A procedure for estimating state space models for multivariate distributed lag processes is described. It involves singular value decomposition techniques and yields an internally balanced state space representation which has attractive properties. Following the specifications of a forecasting competition, the approach is applied to generate ex-post forecasts for US real GNP growth rates. The forecasts of the estimated state space model are compared to those of twelve econometric models and an ARIMA model.
Alcohol use among young men who have sex with men.

This study reveals associations between alcohol use and demographic variables, as well as the relation between alcohol use and sexual activity, using episodic data. Data were obtained during summer and fall from a sample of 558 gay, bisexual, and other young men who have sex with men (YMSM), ages of 13–29 years in New York City. Recruitment strategies targeted potential participants at gay-related venues and public spaces often frequented by YMSM. Alcohol use varied by race/ethnicity, with White YMSM consuming significantly more alcohol than other races/ethnicities. Participants over the age of 21 drank significantly more alcohol than participants ages 13–20. Alcohol use was not found to be associated with sexual risk-taking activity. Our findings are enriched by a large, diverse sample of urban YMSM. Study limitations are noted.
Relationship between urinary phthalate and bisphenol A concentrations and serum thyroid measures in U.S. adults and adolescents from the National Health and Nutrition Examination Survey (NHANES) 2007-2008.

Background: Limited animal, in vitro, and human studies have reported that exposure to phthalates or bisphenol A (BPA) may affect thyroid signaling.Objective: We explored the cross-sectional relati...
ON THE NUMBER OF ARC-DISJOINT HAMILTONIAN CIRCUITS IN THE DE BRUIJN GRAPH

We give a constructive proof that there are d−1 arc-disjoint Hamiltonian circuits in the d-ary De Bruijn graph when d is a power of 2. We also demonstrate the existence of at least $2^{ - k} \Pi _{...
Alterations of rat natural killer (NK) cell cytotoxicity and cytokine production by 3-methylcholanthrene (3-MC)

The carcinogen 3-methylcholanthrene (3-MC) was found to exert immunosuppressive effects both in vitro and in vivo in this study. Spleen cells from 8-week-old male, Sprague-Dawley (S-D) rats exposed to 1, 10 or 100 micrograms/ml 3-MC in vitro for 18 h exhibited a dose-dependent decrease in natural killer (NK) cell cytotoxicity against the YAC-1 tumor target cells in a 4 h 51Cr-release assay. Peritoneal macrophage production of prostaglandin E2 (PGE2) was significantly decreased at all three 3-MC concentrations following a 24 h exposure in vitro. No effect of 3-MC on splenic interleukin-2 (IL-2) production was observed. A separate group of rats was inoculated with a single subcutaneous dose of 5 or 10 mg 3-MC and cytotoxic activity of spleen NK cells was examined at 1, 2, 3, 7, 14, 21, 28, 60, 120 and 180 days after the 3-MC injection. Natural killer cell cytotoxicity was suppressed as early as 24 h after 3-MC injection and persisted up to 21 days. This decrease in NK activity was accompanied by a decreased production of splenic interferon and elevated production of PGE2 by peritoneal macrophages. Natural killer cell cytotoxicity was elevated in the 3-MC-treated rats at 28 and 60 days post-treatment. At 120 and 180 days post-3-MC treatment, when the rats were bearing palpable chemically-induced tumors, NK activity was again significantly depressed. In addition, 3-MC-induced tumors were surgically removed and cultured in vitro. Supernatants from these tumor cell lines were shown to markedly inhibit NK cytotoxicity when tested in vitro. Preliminary results indicate that this inhibition may be mediated by prostaglandins.
Expanding the mycobacterial diversity of metalworking fluids (MWFs): evidence showing MWF colonization by Mycobacterium abscessus

Nontuberculous mycobacteria (NTM) have been associated with hypersensitivity pneumonitis in machinists. Only two species of NTM, namely Mycobacterium immunogenum and Mycobacterium chelonae, have been reported thus far to have the ability to colonize contaminated metalworking fluids (MWFs). Here, we report, for the first time, the presence and characterization (phenotypic and genotypic) of a third species, Mycobacterium abscessus, colonizing these harsh alkaline machining fluids. Two Mycobacterium morphotypes, smooth (S) and rough (R), were isolated (two isolates each) from an in-use industrial MWFs. Biocide susceptibility analysis using triclosan as a model yielded the same minimal inhibitory concentration for the two morphotypes. PCR-restriction analysis–based speciation of the morphotypes confirmed their identity as M. abscessus. Genotyping based on partial DNA sequences corresponding to the variable regions of the hsp65 gene and 16S-23S rRNA operon internal transcribed spacer region and randomly amplified polymorphic DNA-PCR analysis showed that both morphotypes belong to a single genotype. In addition, we isolated and confirmed two novel mycobacterial genotypes, one each of M. immunogenum and M. chelonae from additional in-use MWF screening. Taken together, this study expands the known mycobacterial species- and strain-diversity colonizing MWF. Furthermore, the study emphasizes the need for including M. abscessus species in the existing mycobacterial screening of contaminated MWF.
Cognitive skills and Black–White wages in the United States labor market

Abstract Using data from the National Longitudinal Survey of Youth (NLSY), this study analyzes the effects of cognitive skills on the wages of Whites and African Americans in white and blue collar occupations. The results show that cognitive skills, net of education, are important predictors of wages across all occupations. Mathematics skills, in particular contribute to significant wage premiums for workers in white and blue-collar occupations, with the exception of Blacks in blue-collar professions. English skills lead to significant wage premiums only for Blacks in blue-collar occupations. While the incorporation of cognitive skills narrows the Black-White wage gap considerably, the effects of skills on the wages of Blacks and Whites are far from uniform. The results also show that despite using detailed controls for the quality of education, an extra year of schooling yields the highest wage premium for Whites in all occupations.
Diverse trajectories of cocaine use through early adulthood among rebellious and socially conforming youth.

This paper tests predictions of continuity and change in antisocial behavior over time as derived from population heterogeneity and life-course perspectives. These predictions are assessed with respect to a rarely studied form of delinquent/criminal behavior, cocaine use during the late-teenage and young adult years. We first examine the extent to which differential propensities toward antisocial behavior can be detected in a nationally representative sample of youth aged 14–16 in 1979. Based on self-reported delinquent and criminal activities in late adolescence, traditional cross-sectional latent-class analysis identifies three groups of antisocial/rebellious respondents and a group of non-offenders. We then follow these groups into early adulthood, examining age trajectories of cocaine usage between 1984 and 1998. Latent-class trajectory models identify clusters of respondents who show similar age trajectories of cocaine use over time and provide parameter estimates that predict membership in those clusters. In support of the population heterogeneity perspective, we find that antisocial/rebellious youth have higher probabilities of cocaine use throughout early adulthood than non-offending youth. There is, however, much variation in drug use patterns among the groups as they aged. In support of a life-course perspective, we find that social ties to schools, families, religion, and the labor market help differentiate youth who refrain from, maintain, or desist from using cocaine through early adulthood.
2.4 GHz low cost low noise amplifier on flexible organic substrate

In this paper a low cost 2.4 GHz low noise amplifier on organic flexible substrate, that is widely used for organic light-emitting diodes (OLED) and flexible printed circuits, is presented. The amplifiers were fabricated by two ways, one with aerosol jet printing technology and the other with copper tape for reduced cost fabrication. Using the aerosol jet printing approach, the amplifier exhibits a measured performance of 12.09 dB gain and 2.4 dB noise figure compared with the copper tape implementation which exhibits 10.55 dB gain and 3.2 dB NF. This demonstration paves the way for low cost ISM sensors on flexible substrates utilized for a variety of functions (LEDs etc.) using digital manufacturing technology.
Observation of normal-incidence intersubband absorption in n-type Al0.09Ga0.91Sb quantum wells.

Normal-incidence intersubband absorption has been observed in n-type Al 0.09 Ga 0.91 Sb quantum wells, as predicted by our previous calculation. The quantum wells were grown on (100)-GaSb and (100)-GaAs substrates and contain an electron sheet density of approximately 7×10 11 cm -2 . The electrons occupy a two-dimensional L-point subband having ellipsoidal Fermi surfaces
An Extension of the Craig-Lyndon Interpolation Theorem

In a work widely quoted and applied, 3 Craig has shown that if A and C are any formulas of predicate logic such that A├C, then there is a formula B such that (i) A├B and B├C, and (ii) each predicate symbol occurring in B occurs both in A and in C . 4 If, in this theorem, we replace the syntactic notion of derivability, ├, by the semantical notion of consequence, ╞, the resulting proposition is of course equally valid, for by the (strong) completeness theorem of predicate logic 5 the relations ├ and ╞ coincide in extension.
Transformation design of a miniature throw-able robot

Purpose – This paper aims to present a transformation mechanism designed for a miniature throw-able robot, including the mechanical model, related analysis and experiments. Design/methodology/approach – The robot can be thrown into suspicious areas. It keeps in a ball-shaped configuration during throwing and uses the driving motors to implement transformation of the mobile form. A foldable tail is also released out as a third point to guarantee the stability of the robot. Findings – By transformation, the robot possesses the overall shock protection like a regular spherical robot and also has detection ability and agile mobility as a two-wheeled robot. Originality/value – An innovative transformation mechanism was designed, analyzed and tested. The mechanism is suitable for a throw-able robot which is simple in structure, small in volume and light in weight. Effectiveness of the transformation design has been validated through experiments.
Prices and Demands for Input Characteristics

Price of an input equals the sum of the money values of the input's characteristics to the purchaser; money value of each of an input's characteristics equals the input's yield of the characteristic multiplied by the money value of one unit of the characteristic. Demand for an input is affected by the input's characteristics. The themes are derived from a neoclassical firm model, in which the arguments of the firm's production function are quantities of input characteristics used, and from duals of linear programming blending problems. These themes are used to evaluate corn grades.
Aging Service Need and Use Among Chinese American Seniors: Intragroup Variations

Existing literature on aging service use by Asian/Chinese American seniors mainly focuses on documenting and explaining low service use in the Asian/Chinese senior population. However, service use is not uniformly low, and variations in need and use do occur within the Asian/Chinese senior population. Little research focuses on these service need and use variations. This paper focuses on those variations within one group, Chinese American seniors. Through a community-based case study, we found, first, that Chinese American seniors are internally diversified, and consist of several subgroups, which can be identified largely through immigration timing and status, work history, current living situations, and language and driving ability. Second, each subgroup has particular service need and use patterns. Third, service need and use variations are related to the characteristics that define the subgroups, to perceptions of service need, availability, accessibility and to service source preference. The findings from this study suggest that research in general about service need and use by minority seniors may be helped through more detailed analyses by sub-population, and through the use of perceptions of service availability and accessibility and service source preference.
Dynamic culture conditions to generate silk-based tissue-engineered vascular grafts.

Tissue engineering is an alternative approach for the preparation of small-diameter (<6 mm) vascular grafts due to the potential to control thrombosis, anastomotic cellular hyperplasia and matrix production. This control also requires the maintenance of graft patency in vivo, appropriate mechanical properties and the formation of a functional endothelium. As a first step in generating such tissue-engineered vascular grafts (TEVGs), our objective was to develop a tissue-engineered construct that mimicked the structure of blood vessels using tubular electrospun silk fibroin scaffolds (ESFSs) with suitable mechanical properties. Human coronary artery smooth muscle cells (HCASMCs) and human aortic endothelial cells (HAECs) were sequentially seeded onto the luminal surface of the tubular scaffolds and cultivated under physiological pulsatile flow. The results demonstrated that TEVGs under dynamic flow conditions had better outcome than static culture controls in terms of cell proliferation and alignment, ECM production and cell phenotype based on transcript and protein level assessments. The metabolic activity of HCASMCs present in the TEGs indicated the advantage of dynamic flow over static culture in effective nutrient and oxygen distribution to the cells. A matrigel coating as a basement membrane mimic for ECM significantly improved endothelium coverage and retention under physiological shear forces. The results demonstrate the successful integration of vascular cells into silk electrospun tubular scaffolds as a step toward the development of a TEVG similar to native vessels in terms of vascular cell outcomes and mechanical properties.
Drift mobility in amorphous selenium-sulfur alloys

Drift mobility measurements have been made on thin amorphous films of selenium-sulfur alloys in the composition range from 14 at % to 31 at % sulfur. Carrier lifetimes were found to be 10–20 μsec for holes and > 10−3 sec for electrons. These lifetimes are considerably longer than those reported by Schottmiller et al. in lower sulfur concentration films. The drift mobilities decrease with increasing sulfur concentrations and were characterized by activation energies of 0.33 eV for holes and 0.43 eV for electrons. Only a trap-controlled drift mobility model is consistent with the constant activation energies and decreasing mobility observed with increasing sulfur content. The optical absorption and photoconductivity edges were found to shift to higher photon energies with increasing sulfur content.
Gastrointestinal Helminth Communities of Bobwhite Quail

We found 12 species of intestinal helminths in 158 Northern Bobwhites (Colinus virginianus) in northern Florida (1983-1984). Of these, six species were common: the cestodes Raillietina cesticillus and R. colinia, the cecal nematodes Heterakis isolonche and Trichostrongylus tennis, the proventricular nematode Dispharynx nasuta, and the gizzard nematode Cyrnea colini. Four pairs of species had statistically significant numerical associations: the cestodes were negatively associated, and positive associations existed between the cecal nematodes, R. cesticillus-D. nasuta, and H. isolonche-C. colini. When either cecal nematode was present in high densities, H. isolonche shifted its location, indicating a possible negative interaction. There were some intraspecific relationships be- tween cestode density and mean location, location variance, and biomass. In addition, R. cesticillus biomass was negatively correlated with R. colinia density. This community, while not characterized by high species richness, is readily colonized and exhibits evidence of inter- and intraspecific interaction. It does not conform to current models of parasite community structure.
High Performance Team: Building a Business Program With Part- and Full-Time Faculty

Business programs at colleges and universities presently face wide-ranging challenges in delivering quality education. As more and more business programs find it necessary to conserve or redirect resources, successfully leading through change becomes paramount for departments and their faculty teams. This challenge is compounded by a growing number of part-time faculty. The author examined the processes a school of business undertook while redesigning its program with a faculty team of part- and full-time members. The author identifies and discusses components of leading change and achieving high performance with a diverse faculty team as well as implications for the future.
ImagePAD, a novel counting application for the Apple iPad, used to quantify axons in the mouse optic nerve.

Abstract The present article introduces a new and easy to use counting application for the Apple iPad. The application “ImagePAD” takes advantage of the advanced user interface features offered by the Apple iOS® platform, simplifying the rather tedious task of quantifying features in anatomical studies. For example, the image under analysis can be easily panned and zoomed using iOS-supported multi-touch gestures without losing the spatial context of the counting task, which is extremely important for ensuring count accuracy. This application allows one to quantify up to 5 different types of objects in a single field and output the data in a tab-delimited format for subsequent analysis. We describe two examples of the use of the application: quantifying axons in the optic nerve of the C57BL/6J mouse and determining the percentage of cells labeled with NeuN or ChAT in the retinal ganglion cell layer. For the optic nerve, contiguous images at 60× magnification were taken and transferred onto an Apple iPad®. Axons were counted by tapping on the touch-sensitive screen using ImagePAD. Nine optic nerves were sampled and the number of axons in the nerves ranged from 38,872 axons to 50,196 axons with an average of 44,846 axons per nerve (SD = 3980 axons).
The Odd-Nucleon-Plus-Liquid-Drop-Model of Heavy Odd Nuclei

The odd-nucleon-plus-liquid-drop-model of the heavy odd nuclei is considered using the techniques developed by Racah in the construction of the nuclear ground states. The odd nucleon-core interaction is treated perturbation-wise, and the nuclear magnetic moments, quadrupole moments, and the energies of the excited states are investigated. The results are not wholly satisfactory; however, some indications of improvement may be seen.
A VLSI layout for a pipelined Dadda multiplier

Parallel counters (unary-to-binary converters) are the principal component of a dadda multiplier. The authors specify a design first for a pipelined parallel counter, and then for a complete multiplier. As a result of its structural regularity, the layout is suitable for use in a VLSI implementation. They analyze the complexity of the resulting design using a VLSI model of computation, showing that it is optimal with respect to both its period and latency. In this sense the design compares favorably with other recent VLSI multiplier designs. 24 references.
The effect of pulse duration on the growth rate of laser-induced damage sites at 351 nm on fused silica surfaces

Past work in the area of laser-induced damage growth has shown growth rates to be primarily dependent on the laser fluence and wavelength. More recent studies suggest that growth rate, similar to the damage initiation process, is affected by a number of additional parameters including pulse duration, pulse shape, site size, and internal structure. In this study, we focus on the effect of pulse duration on the growth rate of laser damage sites located on the exit surface of fused silica optics. Our results demonstrate, for the first time, a significant dependence of growth rate at 351 nm on pulse duration from 1 ns to 15 ns as {tau}{sup 0.3} for sites in the 50-100 {micro}m size range.
Supercritical CO2 assisted ternary-monomer grafting copolymerization of polypropylene

Free-radical grafting of ternary-monomer onto polypropylene (PP) particles in the solid state has been studied using supercritical carbon dioxide (SC CO2) as a solvent and a swelling agent. The PP particles were first swelled with the monomers and AIBN as an initiator, using SC CO2 at different experimental conditions of pressure, temperature and treatment time. After releasing CO2, monomers were grafted onto PP in different temperatures. During monomer selection, combination of soft monomer and hard monomer was used in order to tune polarity and flexibility of grafted polymer. FTIR spectra confirmed that ternary-monomer had been grafted onto PP and SEM showed that grafted molecules had been uniformly distributed in the PP substrate. TG analysis indicated that thermal stability of grafting modified PP had been improved, and DSC revealed that grafting leads to a lower degree of crystallinity of polypropylene.
Information-Theoretic Characterization of Bifurcations in Nonlinear Dynamical Systems With Noise

Detecting bifurcations in noisy and/or high-dimensional physical systems is an important problem in nonlinear dynamics. Near bifurcations, the dynamics of even a high dimensional system is typically dominated by its behavior on a low dimensional manifold. Since the system is sensitive to perturbations near bifurcations, they can be detected by looking at the apparent deterministic structure generated by the interaction between the noise and low-dimensional dynamics. We use minimal hidden Markov models built from the noisy time series to quantify this deterministic structure at the period-doubling bifurcations in the two-well forced Duffing oscillator perturbed by noise. The apparent randomness in the system is characterized using the entropy rate of the discrete stochastic process generated by partitioning time series data. We show that as the bifurcation parameter is varied, sharp changes in the statistical complexity and the entropy rate can be used to locate incipient bifurcations.Copyright © 2013 by ASME
DNA sequence of mutations induced in cells by herpes simplex virus type-1.

Abstract The shuttle vector plasmid pZ189 was used to find the kinds of mutations that are induced in cells by herpes simplex virus type-1 (HSV-1). A significant increase in mutation frequency was detected as early as 2 hr after infection, and reached a peak of two-to sevenfold over background at 4 hr after infection. Several differences were detected between spontaneous mutants and those induced by HSV-1 when they were analyzed by gel electrophoresis and DNA sequencing. Point mutations accounted for 63% of spontaneous mutants but for only 44% of HSV-1-induced mutants (P
Extension of Maintenance Opportunity Windows to General Manufacturing Systems

In manufacturing systems, many maintenance tasks require equipment to be stopped in order to safely perform them. However, such tasks cannot last for a long time since the stoppage of machines might directly result in production losses. In this paper, we investigate how long we can perform maintenance during scheduled operations by strategically shutting down equipment without bringing extra production losses to the system. Using the concept of maintenance opportunity window (MOW) we calculate such time intervals with given information of manufacturing systems. MOWs are analytically derived with various system configurations. Simulations are used to deal with uncertainties in production lines such as random machine failures, starvations, blockages, etc. Moreover, the proposed MOW algorithms are demonstrated through numerical case studies.Copyright © 2012 by ASME
IFSP Implementation in the Fourth Year of P.L. 99-457: The Year of the Paradox.

After 4 years of planning under Part H, data reveal that the phase-in of the early intervention program is behind schedule. When we ask, How are IFSPs working? we find that IFSPs are not universall...
Preadolescents' categorization of gender and ethnicity at the subgroup level in memory

The statement matching paradigm was used to examine how 10- to 13-year-olds categorized adults when both ethnicity and gender varied across targets. Forty-seven children watched a PowerPoint presentation of a conversation involving two Black men, two Black women, two White men and two White women. Each slide displayed the speaker's picture, name and the statement made. The children then were asked to determine who made each statement. The pattern of errors in their assignments was examined to assess how they spontaneously categorized the adults. More within-ethnicity within-gender errors (e.g. assigning a statement made by a White woman to the other White woman) were made than any other type of error. This implies that the targets were categorized at the subgroup level. In contrast to findings for adults, the children did not also categorize at the more global level of gender above and beyond the subgroup categorization.
Evaluation of the Impact of a Policy Change on a Diversion Program

Abstract As part of a larger study examining the impact of the “get tough” policy on juvenile crime, we studied the effects of efforts to “get tough” on juvenile participation in diversion programs in Hillsborough County, Florida. Florida legislature budget cuts in 2000 eliminated a primary community service program (JASP), replacing it with programs permitting penetration into the juvenile justice system (the Walker Plan and Intensive Delinquency Diversion Services [IDDS]). This event provided an opportunity for a natural experiment evaluating the impact of these service changes on youth participant outcomes. Differences were found among the diversion programs in regard to involvement. Discriminant analysis indicated the distinctions among the youths reflected primarily a difference between youths completing the program and those failing to complete the program. Stepwise logistic regression analyses predicting diversion program completion found that youths placed in the Walker Plan and in an arbitration ...
Isaac de Castellón: poet, kabbalist, communal combatant

In the fourth decade of the thirteenth century a long-simmering revolt erupted in Barcelona and surrounding communities. It pitted the nesiʾim (literally: princes), who claimed communal authority as an aristocratic prerogative and enforced it through their influence at the royal court, against a scholarly elite that included major figures such as Naḥmanides and Jonah Gerondi. The political conflict intertwined with two wider religious disputes: the Maimonidean controversy of the 1230s and the debate over the legitimacy of kabbalah. The rebels, who included kabbalists and opponents of philosophical rationalism gained the support of James I and thus prevailed. One figure mentioned as a leader of the revolt, “the poet Rabbi Isaac Castellon,” has until now remained obscure. The article identifies him with a poet of the same name, mentioned as the author of a liturgical poem included in the fourteenth-century Barcelona Haggadah. Close reading shows it to be skillfully wrought, and to make creative use of Andalusian poetic tradition and technique. Castellon transcribes the Neoplatonic contrast between God’s hidden and revealed aspects into a kabbalistic key, using a kabbalistic symbol, “the tip of the yod,” for Keter, the highest sefirah. The conclusion of the poem appears to assert that, contrary to the claims of its critics, the kabbalistic doctrine of the sefirot is consistent with God’s absolute unity. The poem’s adoption as a prelude to the Shema‘ in the communal service may have been a consequence of the victory of the Barcelona rebels.
Optimum Grouping in One-Criterion Variance Components Analysis

ESTS of significance associated with the single criterion analysis of l variance usuatly assume that a sample of n observations is drawn from each of mn normal populatioiis with common variance o2. In the "components of variance" model, the m population means are themselves considered a sample of m observations on a superpopulation, also normal, with variance 020-2. The null hypothesis 0=0 is tested against the alternative 0>0 by means of the F ratio. Detailed descriptions of this model are given by Eisenhart ([3] and [4]); Ferris, Grubbs, and Weaver [5]; and Crump [2]. When the number of populations is indefinite and the total number of observations N = mn is limited, it is possible to determine which (m, n) combination gives the most powerful F-test for a given N. This problem was considered in [1], [4], and [5]. For all cases examined, each (m, n) combination in turn was found to provide the most powerful test for some interval of 0. An extensive list of these optimum groupings would seem, however, of limited practical interest; for the applied statistician is seldom in a position to specify in advance the magnitude of 0 which he desires to detect. To remove the need of a priori information, this note proposes a simple rule for selecting m and n which gives nearly maximum power for all 0>0.1 The rule is to select m and n as nearly equal as possible. The operating characteristics obtained from this selection are shown in Figure 1 for m=n=8, 10, 12, and 16 when the test is conducted at the 5 per cent level of significance. The values used to plot the curves were obtained for the most part by the well-known method outlined in [5] using the percentiles of the F-distribution as given in [6]. Table 8.4 in [4] also served as a valuable check on the results. The dashed curves enclose the operating characteristics for all the (m, n) combinations that can be formed from the given amount of data. These curves approximate the upper and lower envelopes for the family; no single (m, n) choice will yield either curve as its operating characteristic. Groupings in which m is much less than n are more powerful than
The Relationship between Language and Reading in Bilingual English-Arabic Children

The connection between language and reading is well established across many languages studied to date. Little is known, however, about the role of language in reading in Arabic—a Semitic language characterized by diglossia—in which the oral and written varieties differ across language components. This study examined the relationship among multiple components of language, namely, phonology, morphology, and vocabulary and reading outcomes in 83 bilingual English-Arabic children. Results revealed associations between phonological awareness skills across English and Arabic. These associations did not hold for morphological awareness skills. Results also revealed that for Arabic and English, phonological awareness predicted word and pseudoword reading accuracy and vocabulary predicted reading comprehension. These findings are consistent with the tenets of the extended version of the Triangle Model of reading, which underscores the importance of multiple language components in predicting reading outcomes. Implications for future research, early intervention, and instruction with bilingual children are highlighted.
Effects of dietary protein content in streptozotocin-diabetic rats

Effects of dietary protein content in streptozotocin-diabetic rats. We evaluated the influence of increased dietary protein intake on glomerular structure and function in Lewis rats made diabetic with streptozotocin. We found that diabetic animals on a 20% or 50% protein diet ate approximately 50% more protein and excreted about 50% more urinary urea nitrogen than did their respective similarly-fed nondiabetic controls. The 50% protein diet was associated with higher glomerular filtration rates (GFR) and renal blood flows (RBF) at two months in both diabetic and control animals compared to their respective controls on the lower protein diet. However, GFR and RBF were not significantly higher in the diabetic animals on the 50% protein diet than in the controls on the 20% diet and were slightly, albeit not significantly lower than controls on the 50% diet. Glomerular capillary pressure (PGC) tended to be lower in the diabetic compared to their respective controls, while the high protein diet was associated with higher PGC in diabetic and nondiabetic animals. The PGC in the 50% diabetic rats was not different from the PGC in the nondiabetic rats. Urinary albumin excretion (UAE) rate was greater in the diabetic than in the nondiabetic animals. UAE was greatest in the high protein diabetic animals at six months. Glomerular basement membrane thickness after six months of diabetes was increased essentially equally in both normal and high-protein fed diabetic groups and was largely uninfluenced by diet in the controls. Fractional mesangial volume was increased and relative filtration surface was decreased only in the 50%-protein diet diabetic rats at six months. Thus, high protein diet was associated with increased fractional mesangial volume in diabetic rats, but this could not be explained by increased glomerular capillary flows or pressures. The mechanism of acceleration of mesangial expansion by high protein diet in diabetic animals was not elucidated by these studies.
Redistribution of Snowfall across a Mountain Range by Artificial Seeding: A Case Study

Clouds over the western slopes of the Cascade Mountains were artificially seeded to reduce the riming and fall speeds of snow crystals and to divert snowfall across the crest. Aircraft observations showed that the clouds were glaciated by the seeding. The crystal habits and the degrees of riming of snow crystals reaching the target area were modified. Snowfall rates decreased at the crest and simultaneously increased 20 kilometers east of the crest.