cssi/SciSciGPT-SciSciNet huggingface dataset:
Using latent profile and transition analyses to understand patterns of informant ratings of child depressive symptoms

The present study examined the latent profiles of child, parent, and teacher ratings of child depressive symptoms in a developmental sample of children from Hawaii at two time points (2nd and 3rd grade). The study attempted to identify patterns of agreement and discrepancy among raters and correlates of these patterns to test a new theory for understanding rating disagreements as Divergent Operations. Three profiles best described the ratings at both time points: Child-Only High Depression, Child-Only Mild Depression, and Normative (non-depressed). Second and third grade measures of child social skills, externalizing symptoms, attention problems, and language and academic competence confirmed the distinctiveness of these classes which provides support for a Divergent Operations perspective. Latent transition analyses suggested that depressive symptoms were relatively transient for each class. Implications regarding the measurement and identification of child depressive symptoms across development and the meaning and use of discrepant ratings are discussed.
Study of Attractor Variation in the Reconstructed Phase Space of Speech Signals

This paper presents a study of the attractor variation in the reconstructed phase spaces of isolated phonemes. The approach is based on recent work in time-domain signal classification using dynamical signal models, whereby a statistical distribution model is obtained from the phase space and used for maximum likelihood classification. Two sets of experiments are presented in this paper. The first uses a variable time lag phase space to examine the effect of fundamental frequency on attractor patterns. The second focuses on speaker variability through an investigation of speaker-dependent phoneme classification across speaker sets of increasing size. The results are discussed at the end of the paper.
Nonsuicidal self-injury, suicide ideation and suicide attempts in the National Guard

Abstract Background Among members of the National Guard, suicide rates are higher than age and sex matched civilian counterparts. Across many civilian samples, nonsuicidal self-injury has emerged as a particularly strong correlate of suicide risk. The current study describes the prevalence and correlates of NSSI and suicidal thoughts and behaviors among National Guard members. Methods Participants were 897 National Guard personnel recruited online who completed study measures anonymously. Results Approximately 6% of males and 14% of females reported a history of NSSI. Almost one third of the sample reported suicide ideation and 3% of men and 11% of women reported a suicide attempt. NSSI was strongly associated with a history of suicide ideation and attempts. Characteristics of NSSI were similar across men and women. Discussion Reliable access to effective interventions is essential for National Guard members in light of their risk for suicidal and nonsuicidal self-injurious behavior.
Comparison of breakdown-voltage of contemporary and veteran photovoltaic backsheets

Abstract The ability of designated electrically insulating materials in a module, including the backsheet, to act as insulators is a key safety requirement for photovoltaic technology. The recently developed test standards IEC TS 62788-2 (including a method for direct-current breakdown-voltage) and IEC TS 62788-7-2 (for ultraviolet [UV] weathering) are examined for the first time together in this study. Thirty-six contemporary backsheets were compared using the breakdown-voltage test, before and after UV weathering, according to the recent A3 test condition. Twenty-eight backsheets, extracted from a variety of veteran photovoltaic modules, were also examined using the breakdown test. Additional characterizations were performed to interpret the breakdown-voltage results, including: surface and cross-sectional optical microscopy failure analysis; cross-sectional scanning electron (SEM) microscopy with EDS energy-dispersive X-ray spectroscopy (EDX) failure analysis; Fourier-transform infrared spectroscopy (FTIR) to identify the base resin and its chemical integrity; and differential scanning calorimetry (DSC) to identify phase transitions that might adversely affect degradation during weathering. The electrical insulation for the backsheets is discussed relative to: the industry safety requirement; features observed to facilitate the degradation of insulation; the validity of the artificial UV weathering test; the validity of the sheet geometry used for specimens in this study; and the validity of subsequent mechanical testing.
Between (Just) the Paws of the Tender Wolf: Rereading the Conclusion of Angela Carter’s THE COMPANY OF WOLVES

The final sentence of Angela Carter’s short story “The Company of Wolves,” a revisioning of the European folk tale about the protagonist female Little Red Riding Hood (LRRH), can be read in a way t...
Resin and Magnetic Nanoparticle-Based Free Radical Probes for Glycan Capture, Isolation, and Structural Characterization

By combining the merits of solid supports and free radical activated glycan sequencing (FRAGS) reagents, we develop a multifunctional solid-supported free radical probe (SS-FRAGS) that enables glycan enrichment and characterization. SS-FRAGS comprises a solid support, free radical precursor, disulfide bond, pyridyl, and hydrazine moieties. Thio-activated resin and magnetic nanoparticles (MNPs) are chosen as the solid support to selectively capture free glycans via the hydrazine moiety, allowing for their enrichment and isolation. The disulfide bond acts as a temporary covalent linkage between the solid support and the captured glycan, allowing the release of glycans via the cleavage of the disulfide bond by dithiothreitol. The basic pyridyl functional group provides a site for the formation of a fixed charge, enabling detection by mass spectrometry and avoiding glycan rearrangement during collisional activation. The free radical precursor generates a nascent free radical upon collisional activation and thus simultaneously induces systematic and predictable fragmentation for glycan structure elucidation. A radical-driven glycan deconstruction diagram (R-DECON) is developed to visually summarize the MS2 results and thus allow for the assembly of the glycan skeleton, making the differentiation of isobaric glycan isomers unambiguous. For application to a real-world sample, we demonstrate the efficacy of the SS-FRAGS by analyzing glycan structures enzymatically cleaved from RNase-B.
Minimal breast milk transfer of rituximab, a monoclonal antibody used in neurological conditions.

Objective To determine the transfer of rituximab, an anti-CD20 monoclonal antibody widely used for neurologic conditions, into mature breast milk. Methods Breast milk samples were collected from 9 women with MS who received rituximab 500 or 1,000 mg intravenous once or twice while breastfeeding from November 2017 to April 2019. Serial breast milk samples were collected before infusion and at 8 hours, 24 hours, 7 days, and 18–21 days after rituximab infusion in 4 patients. Five additional patients provided 1–2 samples at various times after rituximab infusion. Results The median average rituximab concentration in mature breast milk was low at 0.063 μg/mL (range 0.046–0.097) in the 4 patients with serial breast milk collection, with an estimated median absolute infant dose of 0.0094 mg/kg/d and a relative infant dose (RID) of 0.08% (range 0.06%–0.10%). Most patients had a maximum concentration at 1–7 days after infusion. The maximum concentration occurred in a woman with a single breast milk sample and was 0.29 μg/mL at 11 days postinfusion, which corresponds with an estimated RID of 0.33%. Rituximab concentration in milk was virtually undetectable by 90 days postinfusion. Conclusions We determined minimal transfer of rituximab into mature breast milk. The RID for rituximab was less than 0.4% and well below theoretically acceptable levels of less than 10%. Low oral bioavailability would probably also limit the absorption of rituximab by the newborn. In women with serious autoimmune neurologic conditions, monoclonal antibody therapy may afford an acceptable benefit to risk ratio, supporting both maternal treatment and breastfeeding.
CPU DB: Recording Microprocessor History: With this open database, you can mine microprocessor trends over the past 40 years.

In November 1971, Intel introduced the world’s first single-chip microprocessor, the Intel 4004. It had 2,300 transistors, ran at a clock speed of up to 740 KHz, and delivered 60,000 instructions per second while dissipating 0.5 watts. The following four decades witnessed exponential growth in compute power, a trend that has enabled applications as diverse as climate modeling, protein folding, and computing real-time ballistic trajectories of angry birds. Today’s microprocessor chips employ billions of transistors, include multiple processor cores on a single silicon die, run at clock speeds measured in gigahertz, and deliver more than 4 million times the performance of the original 4004.
Letter To The Journal.

The paper “Short-term Mediterranean Diet Improves Endurance Exercise Performance: A Randomized-Sequence Crossover Trial” (1), which was published in the Journal of the American College of Nutrition...
Effect of feeding strategy of probiotic Enterococcus faecium on growth performance, hematologic, biochemical parameters and non-specific immune response of Nile tilapia

Abstract The aquaculture industry is in considerable increases. Optimization of husbandary conditions in intensive aquaculture are in continuous interest. Probiotic was proved as promising factors to enhance fish production by remodeling intestinal microbial balance, boosting immune system and reducing antibiotic uses. The efficient strategy of probiotic uses and their protection of fish still making debate. The intake of tilpia fed with basal diet enriched with probiotic (Enterococcus faecium) and its response following to a challenge with pathogenic strain of Aeromonas hydrophila was studied. Four feeding strategies were tested and compared: continuous feeding with only basal diet (CTR), continuous feeding with probiotic-supplemented diet (CON), pulse-administration feeding of 7 days (P7) and 14 days (P14) alternation with probiotic supplemented diet and basal diet. Differences in growth rate, immune system modulation and biochemical parameters were evaluated. P7 strategy showed efficacy in promote fish growth conditions. Body chemical composition and blood biochemical parameters did not show any significative differences between feeding strategies. Burst respiratory analysis showed significant difference in fish fed with P14 strategy. After challenge test, CON strategy showed better fish protection against Aeromonas hydrophila. Enterococcus faecium enhance fish growth, boost imune system if administrated in 14 days period, and efficiently protect fish if it is continuously administrated.
High Electric Field Conduction of Polymers at Ambient and Elevated Temperatures

The next generation electrical-power and electronic systems with wide band gap semiconductors require thin dielectric films operating under the extreme electric field at elevated temperatures. Here we investigated the conduction properties under high electric field up to 450 MV/m for biaxially oriented polypropylene (BOPP), which is the state-of-the-art commercially available polymer for capacitive applications, as well as three high-temperature polymers poly(ether ether ketone)(PEEK), poly(etherimide)(Ultem) and polyimide(Kapton). Further analysis was performed based on the hopping conduction mechanism. At elevated temperature, the increased thermally-assisted excitation energy gave rise to an increase of the hopping distance. It is argued that the large band gap provided a higher energy barrier to the charge hopping. If the band gap is large enough, the tunneling process dominated the charge transport, i.e., the case of BOPP. For high-temperature applications, both the thermal stability and large band gap are required in order to suppress the temperature and electric field dependent conduction.
Association of Race with Survival in Intracranial World Health Organization Grade II and III Meningioma in the United States: Systematic Literature Review.

Background Recent literature has shown significant differences in meningioma incidence among different races, but minimal conclusive data exist on the role of race and ethnicity in overall survival for patients with high-grade intracranial meningioma. We conducted a systematic review to investigate the impact of race and ethnicity on survival in patients with high-grade intracranial meningioma. Methods A systematic literature review was conducted for studies using Ovid, PubMed, Cochrane, Embase, and Scopus databases. Databases were queried for the following: Meningioma AND [Ethnic OR Demography, OR African American OR Arab OR Hispanic OR Asian, OR White OR race OR racial] AND [survival OR survival analysis OR survival rate OR treatment outcome OR Survivor OR Outcome]. Results A literature search yielded a total of 412 abstracts, which were screened according to criteria that were determined a priori, and a total of 129 full-text articles were reviewed. Four articles were included in the final analysis, reporting on a total of 13,424 patients. Three studies saw an overall survival benefit in White non-Hispanics compared with Black non-Hispanics, and 1 reported a survival benefit in White non-Hispanics and Black non-Hispanics among patients who received gross total resection. One study additionally reported an increased likelihood of White patients receiving gross total resection when compared with non-White patients. Conclusions The limited data available suggest that White patients have improved measures of survival compared with nonw-White patients, for reasons that are likely complex and multifactorial. Further studies are needed to explore these survival differences seen.
Recent developments in nanofiber-based sensors for disease detection, immunosensing, and monitoring

Abstract Disease diagnosis and treatment always have and will remain the primary goals of modern healthcare. When diseases may be detected early, however, clinical outcomes are able to be improved due to the increased efficiency of therapeutic treatments. To improve upon the detection of diseases, nanofibers (NFs) have been applied to create nanosensors capable of detecting specific biomarkers of certain diseases and illnesses. NFs possess a high surface area to volume ratio, which allows for increased contact between the target analyte and the sensing apparatus, thus often improving the sensitivity, selectivity, and limit of detection of the sensor. These systems also present one method towards point of care healthcare—expanding access to accurate healthcare devices to those who currently lack the infrastructure, if the technology can be commercially scaled. Much progress has been made in recent years for the detection of malaria, cancer, and other diseases while implementing NFs for sensing and are discussed here. Trends and future considerations for the field of NF-based disease diagnosis and monitoring are also considered.
Basilisk: A Flexible, Scalable and Modular Astrodynamics Simulation Framework

The Basilisk astrodynamics framework is a spacecraft simulation tool developed with an aim of strict modular separation and decoupling of modeling concerns in regard to coupled spacecraft dynamics,...
The Acculturation Toolkit: An Orientation for Pediatric International Medical Graduates Transitioning to the United States Medical System.

Introduction International medical graduates (IMGs) consistently contribute to the US physician workforce. In fact, 25% of practicing pediatricians in the US are IMGs, highlighting the needs of IMG...
Redesigning the Online Video Lecture Player to Promote Active Learning

This Research to Practice Work-In-Progress paper examines video lecture interactions and engagement boosting techniques. Posting video lectures online allows lecturers to extend their impact beyond the classroom. However, conventional video players may not be the best way to distribute lecture video content. When we looked at audience retention data for videos, we found that the watch patterns for lecture videos differed drastically from the watch patterns observed for non-lecture videos. In particular, we found that students were more likely to replay or skip sections of lecture videos than they were with non-lecture videos. Given these differences in viewing patterns, we created a new custom video player that is better suited for lectures to enhance student learning and to give instructors valuable feedback. Our custom video player has three main features: it logs student interactions to help instructors identify topics that students might struggle with, it allows students to search for key words in the video, and it has an integrated quiz tool to enhance active learning.
Deep learning for biomedical applications

Abstract The types of data most commonly used for machine learning in biomedical research, including electronic health records, imaging, -omics, sensor data, and medical text, are complex, heterogeneous, poorly annotated, and generally unstructured. However, gaining knowledge and actionable insights from all these data sources is a key challenge in implementing personalized medicine and next-generation healthcare. Deep learning, which describes a class of machine learning algorithms based on neural networks, provides effective opportunities to model, represent, and learn from such complex and heterogeneous sources. Here, we review how this paradigm has already affected healthcare, we note limitations and needs for improved methods and applications, and we discuss the challenges to implement and deploy augmented human intelligence based on deep learning in the clinical domain.
Hydrologic and suspended sediment effects of forest roads using field and DHSVM modelling studies

Abstract Forest road hydrologic and surface erosion effects were evaluated using a two-step approach in South Fork Caspar Creek: (1) road runoff and suspended sediment measurements and (2) use of the Distributed Hydrology Soil Vegetation Model (DHSVM) to examine road scenarios at the watershed scale. Statistical evaluation showed the best multiple linear regression (MLR) model to predict Log10 suspended sediment load (SSL) was from road runoff event peak flow and cube root of maximum turbidity combined with road characteristics of either cutslope cover or road surface type. MLR using road dimensions and event precipitation, without runoff or turbidity, suggested the best model to predict Log10 SSL used road length times slope squared (LS2), road surface type, and cutslope area. DHSVM simulations for three different road drainage scenarios for two road networks were used to evaluate hydrologic and suspended sediment effects. The 2018 road network represented road networks placed high on slopes away from watercourses and a pre-1974 road network lower on the hillslopes with high numbers of watercourse crossings and streamside roads. Forest harvest of South Fork Caspar Creek (SFC) was predicted by DHSVM to increase storm peak flows by 1.5% to 11% relative to pre-harvest, no-road peak flows. The 2018 road network, with 13% of road length adjacent to watercourses, was predicted to make
Dispatches from Nigeria: the actions of Royal Dutch Shell and ChevronTexaco in the Warri Crisis, 2003–2004

Royal Dutch Shell and ChevronTexaco played central roles in the Warri Crisis, a period of deadly violence in the Nigerian oil town of Warri in 2003 and 2004. Scholars have portrayed the crisis as a...
A spin-charge flip symmetric fixed point in 2+1d with massless Dirac fermions

We study a quantum phase transition of electrons on a two-dimensional square lattice. Our lattice model preserves the full $\mathrm{O}(4)$ symmetry of free spin-$\frac{1}{2}$ Dirac fermions on a bipartite lattice. In particular, it not only preserves the usual $\mathrm{SO}(4)$ (spin-charge) symmetry like in the half-filling Hubbard model, but also preserves a $\mathbb{Z}_2$ spin-charge flip symmetry. Using sign-problem-free Monte Carlo simulation, we find a second order quantum phase transition from a massless Dirac phase to a massive phase with spontaneously chosen spin order or charge order, which become simultaneously critical at the critical point. We analyze all the possible 4-fermion couplings in the continuum respecting the lattice symmetry, and identify the terms whose effective potential in the broken phase is consistent with the numerical results. Using renormalization group calculations in the continuum, we show the existence of the new spin-charge flip symmetric fixed point and calculate its critical exponents.
Cognitive impairment in adult CHD survivors: A pilot study

Abstract The most common comorbidities in children with congenital heart disease (CHD) are neurodevelopmental impairments, particularly in areas of executive function, memory and attention. Limited studies have demonstrated similar impairments in CHD adults although no studies have screened specifically for mild cognitive impairment and dementia. Methods We performed a prospective cross-sectional study of CHD patients, ages 30-65 years, who were coming for clinic visits. We administered the Mini-Mental State Exam (MMSE), and scores were compared with population norms adjusted by age and education level. Results A total of 125 patients were recruited (55% male). The median age was 40 years (range 30-65). More than a half (80%) had some college education or advanced degrees. Adjusting for age and education, CHD participants scored significantly lower than the general population (median 1 point lower, p
Integrated system for CT-based assessment of parenchymal lung disease

High-resolution X-ray CT imaging can provide detailed structural and functional information about the respiratory system. We describe a system to facilitate quantitative regional assessment of the lung parenchyma from volumetric CT images. The system contains image segmentation algorithms to identify the key anatomic structures of the lung and image analysis algorithms to examine the lung parenchymal tissue. The system can be used to study the normal lung and to detect changes in the lung tissue due to disease processes such as emphysema.
Theoretical Modeling and Analysis of L- and P-band Radar Backscatter Sensitivity to Soil Active Layer Dielectric Variations

Freeze-thaw (FT) and moisture dynamics within the soil active layer are critical elements of boreal, arctic and alpine ecosystems, and environmental change assessments. We evaluated the potential for detecting dielectric changes within different soil layers using combined L- and P-band radar remote sensing as a prerequisite for detecting FT and moisture profile changes within the soil active layer. A two-layer scattering model was developed and validated for simulating radar responses from vertically inhomogeneous soil. The model simulations indicated that inhomogeneity in the soil dielectric profile contributes to both L- and P-band backscatter, but with greater P-band sensitivity at depth. The difference in L- and P-band responses to soil dielectric profile inhomogeneity appears suitable for detecting associated changes in soil active layer conditions. Additional evaluation using collocated airborne radar (AIRSAR) observations and in situ soil moisture measurements over alpine tundra indicates that combined L- and P-band SAR observations are sensitive to soil dielectric profile heterogeneity associated with variations in soil moisture and FT conditions.
Fiber optic sensors for biomedical measurements in magnetic resonance imaging (MRI)

The properties of the magnetic resonance imaging (MRI) environment and the specific requirements for sensors in MRI are addressed. A fiber-optic blood pressure sensor and its basic performance in a magnetic field are presented. Data from an in-vitro experiment are presented and discussed. Problems and the future development and optimization of such a sensor are discussed. >
Blazar Monitoring with the Whipple 10 m Gamma-ray Telescope

Since September 2005, the Whipple 10 m Gamma‐ray Telescope has been used primarily to monitor known TeV AGN. The five Northern Hemisphere blazars that have been previously detected at Whipple, Markarian 421, H1426+428, Markarian 501, 1ES 1959+650 and 1ES 2344+514, are monitored each night that they are visible. To encourage and coordinate observations of these AGN at other wavelengths, the observing timetable and preliminary light curves for the TeV observations are provided on a publicly accessible website: veritas.sao.arizona.edu/content/blogsection/6/40. A number of multiwavelength observing campaigns have been undertaken by numerous collaborators in conjunction with the Whipple program and a significant amount of data has been accumulated. We report here on the status of these multiwavelength observations and present light curves of radio, optical, X‐ray and gamma‐ray data.
List Comprehensions in Agna, A Parallel Persistant Object System

List comprehensions are structurally similar to SQL, the standard declarative query language for relational databases. Unlike SQL, they are more general, and are embedded seamlessly into powerful programming languages. Thus, functional languages with list comprehensions are attractive as query languages for persistent object systems, where database objects and queries are not distinguished from other objects and computations. We have implemented such a system, called Agna. In this paper, we describe optimizations on list comprehensions in Agna. We use techniques borrowed from relational databases, as well as techniques specific to our parallel implementation. Experimental results show a dramatic impact on performance. A comparison with a commercial relational database system and with an experimental parallel relational system indicates that the performance of Agna approaches that of state of the art relational database systems.
The Minimal Modal Interpretation of Quantum Theory

We introduce a realist, unextravagant interpretation of quantum theory that builds on the existing physical structure of the theory and allows experiments to have definite outcomes but leaves the theory's basic dynamical content essentially intact. Much as classical systems have specific states that evolve along definite trajectories through configuration spaces, the traditional formulation of quantum theory permits assuming that closed quantum systems have specific states that evolve unitarily along definite trajectories through Hilbert spaces, and our interpretation extends this intuitive picture of states and Hilbert-space trajectories to the more realistic case of open quantum systems despite the generic development of entanglement. We provide independent justification for the partial-trace operation for density matrices, reformulate wave-function collapse in terms of an underlying interpolating dynamics, derive the Born rule from deeper principles, resolve several open questions regarding ontological stability and dynamics, address a number of familiar no-go theorems, and argue that our interpretation is ultimately compatible with Lorentz invariance. Along the way, we also investigate a number of unexplored features of quantum theory, including an interesting geometrical structure—which we call subsystem space—that we believe merits further study. We conclude with a summary, a list of criteria for future work on quantum foundations, and further research directions. We include an appendix that briefly reviews the traditional Copenhagen interpretation and the measurement problem of quantum theory, as well as the instrumentalist approach and a collection of foundational theorems not otherwise discussed in the main text.
Evaluating tactile feedback in robotic surgery for potential clinical application using an animal model

Introduction The aims of this study were to evaluate (1) grasping forces with the application of a tactile feedback system in vivo and (2) the incidence of tissue damage incurred during robotic tissue manipulation. Robotic-assisted minimally invasive surgery has been shown to be beneficial in a variety of surgical specialties, particularly radical prostatectomy. This innovative surgical tool offers advantages over traditional laparoscopic techniques, such as improved wrist-like maneuverability, stereoscopic video displays, and scaling of surgical gestures to increase precision. A widely cited disadvantage associated with robotic systems is the absence of tactile feedback.
A Retroviral-Derived Immunosuppressive Peptide Activates Mitogen-Activated Protein Kinases

The highly conserved region within the retroviral transmembrane envelope proteins has been implicated in a number of retrovirus-associated mechanisms of immunosuppression. CKS-17, a synthetic peptide representing the prototypic sequence of the immunosuppressive domain, has been found to suppress numerous immune functions, disregulate cytokines, and elevate intracellular cAMP. In this report we show that using a human monocytic cell line THP-1, CKS-17 activates mitogen-activated protein (MAP) kinases extracellular signal-regulated kinase 1 and 2 (ERK1/2). Kinetic studies show that CKS-17 induces an acute increase of ERK1/2 activity followed by a rapid decrease and then a second sustained increase of ERK1/2. CKS-17 also activates MAP kinase/ERK kinase (MEK) with a similar induction pattern. Mutant THP-1 cells isolated in our laboratory, in which CKS-17 exclusively fails to activate cAMP, did not show the transient decrease of CKS-17-induced ERK1/2 phosphorylation. Pretreatment of THP-1 cells or mutant THP-1 cells with cAMP analog or forskolin followed by treatment with CKS-17 showed no activation of MEK or ERK1/2. These results indicate that CKS-17 activates the MEK/ERK cascade and that there is a cross-talk between CKS-17-mediated MEK/ERK cascade and cAMP in that the MEK/ERK cascade is negatively regulated by cAMP. These data present a novel molecular mechanism(s) by this highly conserved retroviral immunosuppressive component.
Multi-meridional keratometry

During conventional keratometry, the two principal meridia are identified and measurements of the anterior corneal curvature determined along these orientations. However, in cases of corneal irregularity, the principal meridia may be difficult to identify. Accordingly, the present study sought to evaluate two alternative procedures which do not require identification of the principal meridia. Instead, measurements of anterior corneal curvature were determined along either three or four preselected meridia and subsequently converted into the standard format for measurements of anterior corneal curvature. The study was performed on 25 visually normal subjects and the results compared with conventional two meridian keratometry findings. No significant differences were observed between the mean findings for the three and four meridian techniques. Furthermore, both procedures gave comparable results to the conventional two meridian method. Accordingly, multi-meridional keratometry may be valuable in cases of irregular astigmatism, for example produced by keratoconus or scarred corneas, since measurements can be obtained without the necessity for identification of the principal meridia.
The heritability of hypnotic susceptibility of twins: a preliminary report.

Eighty families including at least one set of twins were studied to determine intrafamily resemblances in hypnotizability. Each available family member was tested separately on the Stanford Hypnotic Susceptibility Scale. A significant intraclass correlation ofr I =.63 (N=35,p=.001) was found for monozygotic twins, but the corresponding correlations from same-sexed dizygotic twin pairs and other fraternal pairs did not depart significantly from zero. Sons showed a significant correlation with fathers (r=.37, N=45,p=.05). Results of ratings on a personality scale showed that the correlation was determined by those sons who were rated as similar to their fathers in personality; sons not rated as similar to their fathers in personality did not resemble their fathers in hypnotizability. Because no such correspondences were found between mothers and daughters, or between children and opposite-sexed parents, a simple genetic interpretation does not appear tenable. The study is continuing.
Tolerance of ambiguity among MD/MBA students: implications for management potential.

AbstractBackground:Health care is increasingly characterized by uncertainty and turbulence. In an environment of rapid change, flexibility is critical to the success of managers and organizations. Future physician executives must also be open to change and must be able to deal with the uncertainties
Paper chromatography of choline and the vitamins B1, B2, niacin, and niacinamide. Preparation of radioactive choline acetate and study of its hydrolysis

A qualitative study was made by means of paper chromatography of these different compounds. A suitable solvent, n-propyl alcohol and hydrochloric acid, was used to separate them quickly. The study is devoted to the preparation and hydrolysis of radioactive choline acetate. Spot tests for the products are described.
Distributed Amplifier with Narrowband Amplifier Efficiency

A fully integrated tapered output line distributed cascode SiGe HBT amplifier is presented which presents an identical load to each transistor. A nodal analysis of currents in the output transmission line gives insight into the often assumed efficiency/bandwidth trade-off of a distributed amplifier. The four section one half watt amplifier with 50 Omega input and output exhibits a gain of 21 dB from 100 to 800 MHz with a saturated collector efficiency of 79% at 100 MHz.
Epidermal stem cells arise from the hair follicle after wounding

During normal development, the epidermis and hair follicle are distinct lineage compartments maintained by independent stem cell populations. Both epidermal and follicular keratinocytes are recruited to participate in epidermal repair in response to injury. However, it is generally thought that follicular cells contribute to the wound epidermis only transiently and are ultimately replaced by the progeny of stem cells derived from the original epidermal compartment prior to wounding. Here we use inducible and constitutive cre recombinase expressed from the Sonic hedgehog locus (Shh) for in vivo lineage tracing. This analysis confirms that follicular cells participate in the initial resurfacing of the wound but also reveals that their progeny persist in wound epidermis for months after the wound is healed. It further demonstrates that Shh is not induced in keratinocytes during the wound healing process. We conclude that follicular cells can undergo reprogramming to become long-term repopulating epidermal progenitors following wounding.
Evaluation of the Effectiveness of a Mass Emergency Notification System

Several events on university campuses in recent years have raised awareness about the importance of effective mass emergencies notification systems (MNS). These systems are developed to deliver critical information during life threatening events. Congress created a grant program specific for purchasing mass notification technology. When a mass notification system is in place an individual or group of individuals can send out prerecorded messages or customized messages to any or all of the system's various group lists. Message delivery can be sent using text messaging, e-mail, PDAs, sirens, flashing strobes, intercoms, outdoor emergency phones, computer screen displays, cell and landline phones, and live or recorded voice announcements. Schools, universities, medical buildings, cities, law enforcement, and military have embraced such systems. Any organization can use mass notification to better their emergency management. These systems can also be used to distribute non-emergency messages such as breaking ...
El sistema sanitario vigente y el ideario de mayo 68

Resumen Se cumplen ahora cuarenta anos de la ultima revolucion libertaria en Europa. En el recuerdo queda la accion directa en las calles y la ocupacion de fabricas, pero hubo tambien una ideologia revolucionaria poco conocida por su falta de estructuracion y por la rapidez con la que se disolvio la revuelta. En este articulo se revisan algunos aspectos de su critica a la organizacion sanitaria a la que consideran un factor mas del sometimiento del asalariado, y un soporte de la clase dominante. A traves de sus elementos mas caracteristicos, el paradigma organicista, el papel del hospital y la ideologia medica se consolida el orden social.
Implementing Concurrent Scheme for the Mayfly distributed parallel processing system

This paper discusses a parallel Lisp system developed for a distributed memory, parallel processor, the Mayfly. The language has been adapted to the problems of distributed data by providing a tight coupling of control and data, including mechanisms for mutual exclusion and data sharing. The language was primarily designed to execute on the Mayfly, but also runs on networked workstations. Initially, we show the relevant parts of the language as seen by the user. Then we concentrate on the system Lisp level implementation of these constructs with particular attention toagents, a mechanism for limiting the cost of remote operations. Briefly mentioned are the low-level kernel hardware and software support of the system Lisp primitives.
Neurologic complications after liver transplantation

Neurologic complications are relatively common after solid organ transplantation and affect 15%-30% of liver transplant recipients. Etiology is often related to immunosuppressant neurotoxicity and opportunistic infections. Most common complications include seizures and encephalopathy, and occurrence of central pontine myelinolysis is relatively specific for liver transplant recipients. Delayed allograft function may precipitate hepatic encephalopathy and neurotoxicity of calcineurin inhibitors typically manifests with tremor, headaches and encephalopathy. Reduction of neurotoxic immunosuppressants or conversion to an alternative medication usually result in clinical improvement. Standard preventive and diagnostic protocols have helped to reduce the prevalence of opportunistic central nervous system (CNS) infections, but viral and fungal CNS infections still affect 1% of liver transplant recipients, and the morbidity and mortality in the affected patients remain fairly high. Critical illness myopathy may also affect up to 7% of liver transplant recipients. Liver insufficiency is also associated with various neurologic disorders which may improve or resolve after successful liver transplantation. Accurate diagnosis and timely intervention are essential to improve outcomes, while advances in clinical management and extended post-transplant survival are increasingly shifting the focus to chronic post-transplant complications which are often encountered in a community hospital and an outpatient setting.
Bounds on the Growth of Perturbations to Non-Parallel Steady Flow on the Barotropic Beta Plane

Abstract Based on consideration of the perturbation enstrophy and energy equations, we have derived a general family of bounds on the growth rates of perturbations to non-parallel (vortex-like or wave-like) flow on the barotropic beta-plane, allowing for the effects of forcing, Ekman friction, and topography. The family of bounds generalizes Arnol’d's stability criterion. A number of specific applications of the family of bounds are explored. In particular, the formulas are used to demonstrate that the growth rate of the perturbations must vanish if the perturbation length-scale approaches zero or infinity. The distinction between transient and sustained growth of perturbation energy is discussed in light of our results. It is suggested that the bounds are most useful for estimating transient growth rates.
The Influence of Organizational Structure on Intrinsic Versus Extrinsic Motivation

The article discusses research pertaining to the degree to which organizational structure influences intrinsic motivation in the setting of voluntary religious organization. The sample consists of ...
Modeling offshore wind installation costs on the U.S. Outer Continental Shelf

Abstract Onshore wind power is cost competitive with conventional sources of electricity, but offshore wind power is more expensive, in part due to the added costs of offshore installation. Estimating the installation cost of future projects in the U.S. is an important component of capital cost and provides guidance on expected decommissioning expenditures. The purpose of this paper is to develop a model of the installation costs of offshore wind projects on the U.S. Outer Continental Shelf. Offshore wind farms are characterized in terms of four primary variables – nameplate capacity, turbine capacity, distance to port and distance to shore – which are employed in empirical models of installation. A bottom-up approach is used based on current technologies and expected market conditions for the period 2012–2017 to estimate stage-specific installation costs. The installation costs at three planned U.S. wind farms (Cape Wind, Bluewater Delaware, and Coastal Point Galveston) are estimated and range from $130,000 to $370,000 per MW. Sensitivity analyses are performed to identify the variables most responsible for uncertainty and risk. Cost is relatively insensitive to distance to port, but unit costs decline significantly with larger turbine capacity, and increase with the time required for installation. The limitations of the analysis are described.
Si/Si1-xGex waveguide components for WDM demultiplexing

We report on the development of building blocks of Si/Si 1- x Ge x /Si planar waveguide WDM circuits -- an optical splitter/combiner and the first demonstration of an Si/Si 1- x Ge x /Si arrayed waveguide grating (AWG) demultiplexer. The prototype AWG is a four channel device with a 400 GHz ((Delta) (lambda) equals 2.3 nm) channel spacing, and operates in the 1300 nm wavelength range. Strain and refractive index in the Si 1-x Ge x epilayers play a critical role in device performance. The AWG waveguide heterostructure has total Si 1-x Ge x layer thickness well beyond the measured critical thickness for lattice relaxation, but is stabilized against dislocation formation by the insertion of Si capping layers during growth. Single mode curved ridge waveguides formed from this material show no obvious bend losses for radii of curvature as small as 4 mm.
Identification of CSPα Clients Reveals a Role in Dynamin 1 Regulation

Cysteine string protein α (CSPα), a presynaptic cochaperone for Hsc70, is required for synapse maintenance. Deletion of CSPα leads to neuronal dysfunction, synapse loss, and neurodegeneration. We utilized unbiased, systematic proteomics to identify putative CSPα protein clients. We found 22 such proteins whose levels are selectively decreased in CSPα knockout synapses. Of these putative CSPα protein clients, two directly bind to the CSPα chaperone complex and are bona fide clients. They are the t-SNARE SNAP-25 and the GTPase dynamin 1, which are necessary for synaptic vesicle fusion and fission, respectively. Using hippocampal cultures, we show that CSPα regulates the stability of client proteins and synaptic vesicle number. Our analysis of CSPα-dynamin 1 interactions reveals unexpectedly that CSPα regulates the polymerization of dynamin 1. CSPα, therefore, participates in synaptic vesicle endocytosis and may facilitate exo- and endocytic coupling. These findings advance the understanding of how synapses are functionally and structurally maintained.
COMPARISON OF THREE METHODS OF ASSESSING COLLEGE ENVIRONMENTS1

Three methods of assessing the college environment—student perceptions, student self-reports, and objective institutional data—were compared by use of multimethod factor analysis, a new technique which removes method variance by focusing on correlations between rather than within methods of measurement. A total of 53 college variables for 103 institutions were analyzed. The factors derived from the multimethod analysis were more specific and more free of method variance than those obtained in a principal axis factor analysis; the first four factors in both analyses, however, were similar in content, suggesting that these dimensions appear to be valid descriptions of how 4-year institutions differ from each other rather than differences related to methods of assessment. Convergent and discriminant validity for variables measured by more than one method were also examined and discussed.
Abdominal implantation of intraocular lenses resulting in the formation of reactive membranes

For a better understanding of the cytological principles involved in the formation of reactive membranes on lens implants in the human eye, two kinds of modern implants were placed into the peritoneal space of mice. Continous membranes mainly composed of macrophages were observed after 5 days. The membrane on a polymethylmethacrylate implant contained numerous large giant cells, while there were no giant cells on a glass implant. Implantation of intraocular lenses into the abdomen of mice is suggested as an excellent testing situation for implants of different composition and shape.
Practical multiagent rendezvous through modified circumcenter algorithms

We present a class of modified circumcenter algorithms that allow a group of agents to achieve ''practical rendezvous'' when they are only able to take noisy measurements of their neighbors. Assuming a uniform detection probability in a disk of radius @s about each neighbor's true position, we show how initially connected agents converge to a practical stability ball. More precisely, a deterministic analysis allows us to guarantee convergence to such a ball under r-disk graph connectivity in 1D under the condition that r/@s be sufficiently large. A stochastic analysis leads to a similar convergence result in probability, but for any r/@s>1, and under a sequence of switching graphs that contains a connected graph within bounded time intervals. We include several simulations to discuss the performance of the proposed algorithms.
Infectivity of spores of Bacillus popilliae produced on a laboratory medium.

Abstract No occurrence of milky disease resulted when third-instar larvae of the Japanese beetle, Popillia japonica, were exposed to soil containing 2 billion spores/kg of strain NRRLB-2309M of the milky disease bacterium, Bacillus popilliae, produced on a laboratory medium, or when the larvae imbibed 200,000 of the spores of strain NRRL B-2309M in aqueous suspension; however, 24% of the larvae were infected when they were injected with 10,000 of the spores. In contrast, spores produced commercially 2
Marketing Channels and the Durable Goods Monopolist: Renting versus Selling Reconsidered

Research on durable goods has shown that because of a time inconsistency problem, a monopolist manufacturer prefers to rent rather than sell its product. We reexamine the relative profitability of renting versus selling from a marketing perspective. In particular, using a simple linear demand formulation, we assume a durable goods monopolist has to use downstream intermediaries to market its product. In contrast to the case of an integrated monopolist, we find that when the monopolist has to rely on intermediaries, then it prefers to go through an intermediary that sells rather than one that rents its product. Similarly, the intermediary that sells the product is more profitable than the intermediary that rents the product. However, if the monopolist can commit to a set of prices, then the intermediary that rents is more profitable than the intermediary that sells.
An arbitrary natural effective hierarchy in a left-right higgs theory

Abstract I describe an ordinary Higgs model that produces naturally near its infrared fixed point an arbitrarily large ration of vacuum expectation values, effectively a hierarchy between scales of symmetry breaking. The model has potential phenomenological relevance to left-right theories: it predicts small W L -W R mixing and the existence of ultralight Dirac fermions.