cssi/SciSciGPT-SciSciNet huggingface dataset:
Considering the Mentoring Dyad through the Lens of Relational Trust

Research suggests that relational trust is important for teacher collaboration and shared learning. This study examines relational trust with a new population: teacher candidates and classroom ment...
Evaluation of WASPLab Software To Automatically Read chromID CPS Elite Agar for Reporting of Urine Cultures

ABSTRACT Urine cultures are among the most common specimens received by clinical laboratories and generate a major share of the laboratory workload. Chromogenic agar can expedite culture results, but technologist review is still needed. In this study, we evaluated the ability of the WASPLab software to interpret urine specimens plated onto chromID CPS Elite (CPSE) agar. Urine specimens submitted for bacterial culture were plated onto CPSE agar with a 1-μl loop using the WASP. Each plate was imaged after 0 and 18 h of incubation, and colonies were enumerated by color using the WASPLab software and a technologist’s reading from a high-definition (HD) monitor. The results were reported as negative if 50 CFU (n = 11). The use of both CPSE agar and the WASPLab software improved the time to result for urine culture, reducing the average time to result by 4 h 42 min for negative specimens and 3 h 28 min for positive specimens compared to that with standard-of-care testing. These data demonstrate that the use of CPSE agar and automated plate reading has the potential to improve turnaround time while maintaining high sensitivity and reducing urine culture workload.
The School Psychology Research Collaboration Conference: Examination of Scholarly Outcomes

Although most junior faculty are expected to produce research, studies suggest that mentorship and support for promoting their research careers may be limited. Accordingly, in 2003, the School Psychology Research Collaboration Conference (SPRCC) was developed as an opportunity for early career scholars to establish scholarly networks and collaborate with peers and top researchers in the field of school psychology. The conference was intended to both facilitate important and collaborative research, while also enhancing the productivity among early career participants. The purpose of this study was to evaluate the outcomes of the SPRCC on the research trajectories of 147 participants between 2003 and 2015. The findings indicate that SPRCC has positive research outcomes, especially for participants from institutions with the highest research activity, those with more publications prior to SPRCC, and males. Implications for the field and ideas for future research are discussed.
Tale of fat and fib - cardiac lipoma managed with radiofrequency ablation: A case report.

Background Cardiac lipoma and lipomatous hypertrophy of interatrial septum (LHIS) are very rare disorders with distinct pathological features. While cardiac lipoma is a well-circumscribed encapsulated tumor of mature adipocytes, LHIS is due to entrapment of fat cells in the interatrial septum during embryogenesis. Although a biopsy is the definitive diagnostic test, these disorders can be differentiated by a cardiac magnetic resonance imaging (MRI). Treatment of LHIS is not warranted in asymptomatic patients. In symptomatic patients, surgical resection is the only recommended treatment, which has shown to improve good long-term prognosis. Case summary A 63-year-old Caucasian woman with past medical history significant for hypertension, hypothyroidism, right breast ductal cell carcinoma treated with mastectomy and breast implant, platelet granule disorder, asthma requiring chronic intermittent prednisone use, presented to the outpatient cardiology office with recent onset exertional dyspnea, palpitations, weight gain and weakness. Initial workup with electrocardiogram and holter monitor did not reveal significant findings. During the subsequent hospitalization for community acquired pneumonia, the patient developed symptomatic paroxysmal atrial fibrillation. Transthoracic echocardiogram showed a right ventricular mass. A biopsy was not pursued given the high risk of bleeding due to platelet granule disorder. Cardiac MRI showed characteristic features consistent with cardiac lipoma and LHIS. Prednisone was discontinued. Genetic testing for arrhythmogenic right ventricular dysplasia and 24-h urine cortisol test was negative. As multiple attempts at rhythm control failed with sotalol and flecainide, pulmonary vein isolation and right atrial isthmus radiofrequency ablation were done. She is in follow-up with symptomatic relief and no recurrence of atrial fibrillation for 10 mo. Conclusion Benign fatty lesions in heart include solitary lipoma, lipomatous infiltration and lipomatous hypertrophy of interatrial septum. Although transvenous biopsy provides a definitive diagnosis, Cardiac MRI is superior to computed tomography and aids in differentiating benign from malignant lesions. Surgical excision of cardiac lipoma along with capsule and pedicle removal generally prevents recurrence, but with our patient's unusual tumor features and comorbidities proscribed a surgical approach. Symptom management with antiarrhythmics and ablation techniques were successfully utilized.
Indigenous Archaeology in a Settler-Colonist State: A View from the North American Southwest

Collaborative, open, participatory, community-based, public, and Indigenous archaeologies are frequently discussed collectively as a paradigm shift for the discipline. As these approaches mature, w...
Uptake and predictors of colonoscopy use in family members not participating in cascade genetic testing for Lynch syndrome.

Cascade genetic testing provides a method to appropriately focus colonoscopy use in families with Lynch syndrome (LS). However, research suggests that up to two-thirds at risk to inherit LS don’t participate. Within the United States, no studies have assessed colonoscopy use within this elusive and high-risk subset. We set forth to (1) document colonoscopy use within those not undergoing genetic testing (NGT) and (2) identify factors associated with completing colonoscopy. Data came from a cross sectional survey of families with molecularly confirmed LS. One hundred seventy-six (176) adults participated; 47 of unknown variant status and 129 with variant status known (59 carriers/70 non-carriers). Despite a high level of awareness of LS (85%) and identical recommendations for colonoscopy, NGT reported significantly lower use of colonoscopy than carriers (47% vs. 73%; p = 0.003). Our results show that perceived risk to develop colon cancer (AOR = 1.99, p < 0.05) and physician recommendations (AOR = 7.64, p < 0.01) are significant predictors of colonoscopy use across all family members controlling for carrier status. Given these findings, health care providers, should assess patients’ perceived risk to develop cancer, assist them in adjusting risk perceptions and discuss recommendations for colonoscopy with all members in families with LS. Trial Registration Clinical Trials.gov Identifier: NCT00004210.
Poisoning America: The Trump Administration’s Regulatory Shell Game

This Article, written as part of a conference honoring Professor Richard Stewart on his 50 years as a legal academic, focuses on the inconsistent manner in which the Trump Administration has dealt with three of the most important conceptual issues that are central to the design of environmental policy: cost-benefit analysis, federalism, and the treatment of dirty, old sources of pollution. It has acted in a patently inconsistent way in different proceedings, embracing co-benefits in some cases and decrying their use in others; extolling the virtues of state decision-making in some cases and running roughshod over such decision-making in others; taking extreme actions to protect existing, dirty sources in some cases, and celebrating their replacement in others. The Trump Administration has simply taken whichever side of each of these arguments would advance its deregulatory policies. Though inconsistencies across different regulations — as opposed to inconsistencies within a single regulation — have not been a core concern of the Administrative Procedure Act, its prohibition on “arbitrary and capricious” agency action is sufficiently capacious to embrace egregious actions of this type.
Impact of Advanced Renal Dysfunction on Posttransplant Outcomes After Living Donor Liver Transplantation in the United States.

BACKGROUND Survival after living donor liver transplantation (LDLT) in the United States is excellent. However, the significance of pretransplant kidney disease on outcomes in this population is poorly understood. METHODS This was a retrospective cohort study of 2806 LDLT recipients nationally between January 2010 and June 2020. Recipients with estimated glomerular filtration rate <40 mL/min/1.73 m2 (eGFR-low) or requiring dialysis were compared. Multivariable survival analyses evaluated (1) eGFR-low as a predictor of post-LDLT survival and (2) the survival of LDLT versus deceased donor liver transplant (DDLT) alone with eGFR-low. RESULTS From 2010 to 2020, 140 (5.0%) patients had eGFR-low and 18 (0.6%) required dialysis pre-LDLT. The number of LDLTs requiring dialysis between 2017 and 2020 outnumbered the prior 7 y. Overall LDLT experience was greater at centers performing LDLT in recipients with renal dysfunction (P < 0.001). LDLT recipients with eGFR-low had longstanding renal dysfunction: mean eGFR 3-6 mo before LDLT 42.7 (±15.1) mL/min/1.73 m2. Nearly half (5/12) of eGFR-low recipients with active kidney transplant (KT) listing at LDLT experienced renal recovery. Five patients underwent early KT after LDLT via the new "safety net" policy. Unadjusted survival after LDLT was worse with eGFR-low (hazard ratio 2.12 versus eGFR ≥40 mL/min/1.73 m2; 95% confidence interval, 1.47-3.05; P < 0.001), but no longer so when accounting for mean eGFR 3-6 mo pre-LDLT (hazard ratio, 1.27; 95% confidence interval, 0.82-1.95; P = 0.3). The adjusted survival of patients with eGFR-low receiving LDLT versus deceased donor liver transplant alone was not different (P = 0.08). CONCLUSIONS Overall, outcomes after LDLT with advanced renal dysfunction are acceptable. These findings are relevant given the recent "safety net" KT policy.
The Performance Persistence of Closed-End Funds

The purpose of this study is to extend the research on mutual fund performance persistence to net asset value and market price performance of domestic closed-end funds. While research has assessed the performance persistence of open-end mutual funds, it has not assessed the performance persistence of closed-end funds. Yet, the unique characteristics of closed-end funds allow stronger arguments for their persistence than the arguments previously submitted for open-end mutual funds. The results show evidence for risk-adjusted performance persistence.
Generic passages

This paper examines a type of discourse structure we here call ‘generic passages’. We argue that generic passages should be analyzed as sequences of generic sentences, each sentence containing its own GEN operator (Krifka et al. 1995). The GEN operators produce tripartite matrix/restrictor structures; the main discourse connection among the sentences is that the restrictor produced by each sentence in the sequence has as its contents the information in the matrix produced by the previous sentence in the discourse. We also argue that an identity of reference times is required for this process to occur. In the end generic passages are a natural product of the interaction of generic operators in sentences with independently- established principles structuring ordinary extensional narrative.
Pin-On-Disk Wear Tests for Evaluating Ceramic Cutting Tool Materials

Pin-on-disk wear tests have shown that oxygen is a significant factor in the wear of both silicon nitride-and tungsten carbide-based tool materials against common iron-based alloys such as cast iron and steel. It was not expected that pin-on-disk wear tests could be related to tool wear in machining processes because the mechanical processes involved were different. However, it was found that if speeds, pressures, and environments were the same, there were surprisingly good correlations between the pin-on-disk tests and machining operations such as turning and boring.
Ink‐Jet Ink Technologies

Inks are composed of colorant and vehicle. Colorants can be categorized as a dye or a pigment where dye is soluble in the vehicle and pigment in not soluble in the vehicle. The vehicle may be aqueous, solvent, solid, or monomer that can be cured by ultraviolet light. Digital ink-jet inks have similar requirements to analog inks in terms of print quality and durability and also most need to recover quickly from an idle nonprinting state with minimal intervention. Ink-jet inks are a critical part of the printing process and can be categorized as thermal ink-jet, piezo ink-jet, or continuous ink-jet ink. Each printing process places requirements on the ink. Ink also must be designed for key substrates that will be needed by the customer. Uncoated free sheet paper, photographic ink-jet paper, and vinyl are key substrates for ink-jet printing. Keywords: ink; dye; pigment; solvent; UV curable ink; latex ink
Formation of Extracellular C14-C18 2-D-Hydroxy Fatty Acids by Species of Saccharomycopsis

Eighteen of 19 strains of Saccharomycopsis fibuligera and one of two strains of S. capsularis produced mixtures of C14-C18 2-D-hydroxy acids in liquid culture medium. The mixture of these acids showed antimicrobial activity against Vibrio tyrogenus but not against the other microorganisms tested. Candida lactosa, a recently described species, was shown to be an isolates of S. fibuligera.
Student difficulty in constructing proofs: The need for strategic knowledge

The ability to construct proofs is an important skill for all mathematicians. Despite its importance, students have great difficulty with this task. In this paper, I first demonstrate that undergraduates often are aware of and able to apply the facts required to prove a statement but still fail to prove it. They thus fail to construct a proof because they could not use the syntactic knowledge that they had. By comparing doctoral students and undergraduates constructing proofs in abstract algebra, I have hypothesized four types of `strategic knowledge' – knowledge of how to choose which facts and theorems to apply – which the doctoral students appeared to possess and undergraduates did not. The doctoral students appeared to know the powerful proof techniques in abstract algebra, which theorems are most important, when particular facts and theorems are likely to be useful, and when one should or should not try and prove theorems using symbol manipulation.
Subunit structure of the reconstitutively active cytochrome b-c1 complex: Determination of amino acids and molar distribution of subunit fractions from gel electrophoresis

Abstract A quantitative method has been developed to analyze the amino acid composition of protein subunits directly from the Coomassie Blue-stained band of polyacrylamide gel columns after electrophoresis. It is an improved method originally reported by Houston (Houston, L. L. (1971) Anal. Biochem. 44, 81–88). The results obtained can be thus used for the calculation of the molar ratios of subunit components of protein. The manipulation of the method and computation of the results are illustrated by a very complicated lipoprotein complex. The subunit molar ratios of the reconstitutively active cytochrome b-c1 complex were determined to be 2, 2, 2, 3, 2, 2, and 5 among the seven bands of the corresponding molecular weights of 53 000, 50 000, 37 000, 30 000, 28 000, 17 000, and 15 000, from gel electrophoretic columns. The amino acid composition of each subunit fraction determined directly from hydrolysis of gel was comparable with that obtained by actual isolation of each subunit.
Fe(III)-mediated cellular toxicity

Because it can undergo reversible changes in oxidation state, iron is an excellent biocatalyst but also a potentially deleterious metal. Iron-mediated toxicity has been ascribed to Fe(II), which reacts with oxygen to generate free radicals that damage macromolecules and cause cell death. However, we now report that Fe(III) exhibits microbicidal activity towards strains of Salmonella enterica, Escherichia coli and Klebsiella pneumoniae defective in the Fe(III)-responding PmrA/PmrB signal transduction system. Fe(III) bound to a pmrA Salmonella mutant more effectively than to the isogenic wild-type strain and exerted its microbicidal activity even under anaerobic conditions. Moreover, Fe(III) permeabilized the outer membrane of the pmrA mutant, rendering it susceptible to vancomycin, which is normally non-toxic to Gram-negative species. On the other hand, Fe(III) did not affect the viability of a mutant defective in Fur, the major regulator of cytosolic iron homeostasis, which is hypersensitive to Fe(II)-mediated toxicity. A functional pmrA gene was necessary for bacterial survival in soil. Our results indicate that Fe(III) exerts its microbicidal activity by a mechanism that is oxygen independent and different from that mediated by Fe(II).
100 Books Every Blues Fan Should Own by Edward Komara and Greg Johnson

There is something uniquely American about “Best of” or “Top 10” lists. They are a staple of populist magazines, like People, which regularly informs readers about the nation’s best dressed or best...
Invisible man and invisible women: the sex/race analogy of the 1970s1

Abstract Contemporary feminists take a dismissive attitude toward the sex/race analogy of the 1970s. However flawed as an analysis of sex, race, and the relations between them, not least for its erasure of women of color, the sex/race analogy was a founding rhetorical strategy of the women's Liberation Movement. A history of the analogy is traced, focusing on its use as a legitimating strategy for the emergent women's Liberation Movement, as well as a literary critical/historical aspect of its use in feminist fictional re-visionings of Invisible Man. Concluding remarks examine ways the analogy continues to function in contemporary feminist fiction, most notably with a shift in the meaning of ‘sex’ from sex as gender to ‘sex’ as sexuality, with specific attention to the analogy's use in theory by women of color
A fuzzy-based threshold method applied in SIFT for visual navigation of small UAVs

In this paper, a fuzzy-based threshold method is proposed in image processing of SIFT which is used in visual navigation of small UAVs. By adjusting the thresholds of SIFT online fuzzily, it provides a stable number of features detected from aerial image sequence. The visual navigation estimates the motion of the small UAV by tracking and matching these features extracted from the consecutive image frames. Real experiments verify the stability and advantage of this method in comparison with the fixed and PID-based threshold methods. This proposed method is able to stabilize the number of features regardless of the changes of the aerial images.
From avant‐garde to specialism: Psychoanalysis in America

Psychoanalysis in America functioned first largely as an avant-garde phenomenon. Later psychoanalysis became a specialty within a bureaucratic society. Both roles help explain the importance and the limitations of freud's impact on American culture.
New evidence for tectonic uplift in the Diablo Plateau Region, West Texas

The National Geodetic Survey completed approximately 170 km of releveling in the Diablo Plateau-Salt Basin region during the fall of 1977. The survey was specifically designed to detect possible vertical crustal movements in the area. The new releveling measurements confirm contemporary uplift of the region and suggest that uplift has been continuous for the entire time the movements were monitored (1934-1977). Although the precise mechanism responsible for the observed uplift is unknown, it is almost certainly of tectonic origin. The pattern of uparching is perturbed at the Salt Basin graben, indicating 4.2 + or - 0.3 cm of subsidence relative to its margins between 1958 and 1977.
The performance of parallel matrix algorithms on a broadcast-based architecture

Due to advances in fiber-optics and very large scale integration (VLSI) technology, interconnection networks which allow multiple simultaneous broadcasts are becoming feasible. This paper summarizes one such multiprocessor architecture called the Simultaneous Optical Multiprocessor Exchange Bus (SOME-Bus). It also presents enhancements to the network interface and the cache and directory controllers which support cache block combining, capture and prefetch, and allow complete overlap of processing time with the communication time due to compulsory misses. The paper uses two fundamental matrix algorithms to characterize the impact of each enhancement on performance. Cache miss analysis and results from the execution of these programs on a SOME-Bus simulator show that block capture and prefetch combined with an effective block replacement policy succeed in significantly reducing the miss rate due to compulsory misses as the cache size increases, while a similar increase of cache size in traditional architectures leaves the miss rate due to compulsory misses unaffected. Copyright © 2005 John Wiley & Sons, Ltd.
WE-E-17A-04: CT Based Radiomics Data Predicts for Nodal Involvement and Overall Survival in NSCLC

Purpose: Recent advances in medical imaging technologies provide opportunities to quantify the tumor phenotype throughout the course of treatment non-invasively. The emerging field of Radiomics addresses this by converting medical images into minable data using a large number of quantitative imaging algorithms. The ability of radiomics to predict clinical outcomes such as survival or nodal involvement, can provide valuable complementary information. This study aims to evaluate the predictability of CT based radiomics features for node stages and survival time.in non-small cell lung cancer (NSCLC) patients. Method: We included 118 patients with NSCLC in our analysis. Seventy-four quantitative radiomic features describing the tumor phenotype based on intensity, shape, and texture, were extracted from planning CT scans. Association of the radiomics features with node involvement (Yes/No) was assessed using the area under the curve (AUC) of the receiver operating characteristics (ROC). Association with overall survival was assessed using the C-Index (CI). Results: We found 30 radiomic features that were significantly (FDR corrected) associated with nodal involvement (range AUC=0.73-0.60). Seventeen features were significantly associated survival (range CI=0.56-0.62). Gray Level Non-Uniformity, describing intra-tumor heterogeneity, was the best predictor for both nodal stage (AUC=0.73) and survival time (CI=0.62). It is noteworthy that tumor volume is only the 8th best predictor for both nodal stage (AUC=0.71) and survival (CI =0.61). Conclusion: Radiomics analysis was able to predict node stage and survival time by looking at complex image features. Although tumor volume has been routinely used to predict outcome, this study shows that radiomic features capturing detailed information of the tumor phenotype can provide better prediction for clinical relevant factors such as nodal involvement and survival.
Non-linear effects in the formation of DNA damage in medaka fish fibroblast cells caused by combined action of cadmium and ionizing radiation.

Ionizing radiation-induced formation of genomic DNA damage can be modulated by nearby chemical species such as heavy metal ions, which can lead to non-linear dose response. To investigate this phen...
A potential field approach to finding minimum-exposure paths in wireless sensor networks

A novel artificial-potential approach is presented for planning the minimum-exposure paths of multiple vehicles in a dynamic environment containing multiple mobile sensors, and multiple fixed obstacles. This approach presents several advantages over existing techniques, such as the ability of computing multiple minimum-exposure paths online, while avoiding mutual collisions, as well as collisions with obstacles sensed during the motion. Other important advantages include the ability of utilizing heterogenous sensor models, and of meeting multiple objectives, such as minimizing power required, and reaching a set of goal configurations. The approach is demonstrated through numerical simulations involving autonomous underwater vehicles (AUVs) deployed in a region of interest near the New Jersey coast, with ocean currents simulated using real coastal ocean dynamics applications radar (CODAR) data.
The effective mass and the specific heat of normal liquid3He

The behavior of the specific heat of liquid3He as a function of temperature implies a rapid variation of effective mass with energy. Recently a model has been developed for understanding this. In this paper we extend this model to explain the low-temperature (T≦100 mK) specific heat measurements of normal liquid3He by Greywall. We find that the model gives a reasonably accurate description of the data in this temperature range.
Effects of Location and Direction of Diluent Injection on Radiation and Pollutant Emissions of a Burning Spray

Introduction of diluents into diffusion flames is an effective method of changing their combustion and pollutant emission characteristics. Since the dominant thermochemical processes vary from region to region of a burning spray diluent injection at different locations of a flame can affect its overall characteristics differently. This study examines the effects of location and orientation of N/sub 2/ injection into an air-atomized kerosene spray flame. Flame length, radiant emission, temperature profiles, flame opacity, and concentration profiles of NO, CO, and soot are measured. The overall emission indexes of NO, CO, and soot are calculated. Results show that the diluent injection in the axial downstream direction is superior to the radial injection from the point of reducing heat less of the combustor walls. The location of injection affects flame characteristics substantially. Injection of diluent into midflame region produces largest reductions in radiation, flame length, and emissions of soot and CO. Nitric oxide emission does not depend significantly on the location of injection.
A longitudinal study of factors associated with perceived risk of recurrence in women with ductal carcinoma in situ and early-stage invasive breast cancer

Breast cancer patients' perceived risk of recurrence has been associated with psychological distress. Little is known about the change of patients' perceived risk of recurrence over time and factors associated with their recurrence-risk perceptions. We prospectively recruited 549 newly diagnosed early-stage breast cancer patients; patients completed interviews at 6 weeks, 6 months, 1 year, and 2 years after definitive surgical treatment. A random-effects regression model with repeated ordinal measurements was used to estimate the relationship between perceived risk of recurrence and demographic, medical, and psychosocial factors. We analyzed data from 535 patients [34% ductal carcinoma in situ (DCIS); 20% non-white] who reported their perceived risk at one or more interviews. At the first interview, 16% reported having no lifetime risk of recurrence, and another 16% reported ≥ 50% risk of recurrence, including 15% of DCIS patients. Patients who were white (OR = 5.88, 95% CI 3.39-10.19) and had greater state anxiety (OR = 1.04, 95% CI 1.02-1.07) were more likely, while patients who received radiotherapy (OR = 0.72, 95% CI 0.54-0.96) and had more social support (OR = 0.59, 95% CI 0.46-0.75) were less likely to report higher risk of recurrence. Cancer stage was not significantly associated with perceived risk of recurrence. Perceived risk of recurrence did not change significantly over time. Educating early-stage breast cancer patients about their actual risk could result in more realistic recurrence-risk perceptions, and increasing social support could help alleviate anxiety associated with exaggerated risk perceptions.
Polynomial Expansions of Solutions of Cauchy Problems That Involve One Space Variable

Abstract Polynomial sets and polynomial expansion theorems are developed for solutions of Cauchy problems of the form ∂ n u ( x , t )/∂ t n = ± D m u ( x , t ), ∂ j u ( x , t )/∂ t j | t = 0 = φ j ( x ), j = 0, 1,…, n − 1. If m > n , then the data functions must be entire of growth ρ = s /( s − 1) where s = m / n if n divides m and of growth ρ = ( s + 1)/ s if m = ns + r where 1 ≤ r ≤ n − 1. If n ≥ m , then R -analyticity of the φ j ( x ) will suffice.
Sex, drugs and AIDS: issues for hospitalized emotionally disturbed youth.

Children and youth with serious and persistent emotional disturbances are becoming increasingly more at risk for HIV transmission, particularly when considering the high incidence of child sexual abuse by infected adults among the impoverished, urban population. Brief psychiatric hospitalization affords an opportunity to empower the child victims and reduce risk behaviors in general. An inpatient program for youth is described with an emphasis on “taking care of yourself”. High impact teaching methods such as role playing, competency training and raising self efficacy are discussed as critical elements of brief therapeutic interventions.
Level of α-catenin expression in colorectal cancer correlates with invasiveness, metastatic potential, and survival

Background and Objectives: Decreased expression of the E-cadherin/α-catenin cell–cell adhesion complex is considered to elicit detachment of tumor cells from primary lesions and development of metastases. The immunohistochemical profile of α-catenin in colorectal cancer, as well as its correlation with differentiation, lymph node/liver metastasis and patient survival is presented in this study. Methods α-Catenin expression was investigated with immunohistochemistry technique, in 85 paraffin-embedded and 21 fresh frozen specimens, including 82 colon adenocarcinomas, 10 adenomas, 10 lymph nodes, and 3 liver metastases. Preserved α-catenin expression was considered for those tumors that demonstrated more than 90% α-catenin(+) cancer cells and reduced α-catenin expression for those tumors with less than 90% α-catenin(+) cancer cells. The χ2-test was used to calculate the statistical correlation of α-catenin expression with grade of differentiation and metastatic potential and the log-rank test for the correlation with survival rate. Results Normal mucosa, as well as 8/10 of the colon adenomas, showed strong membranous α-catenin expression. Reduced α-catenin expression was found in 32/82 (39%) colorectal cancers examined, which was associated with de-differentiation (P < 0.01), lymph node metastasis (P < 0.025), and poor clinical outcome (P < 0.012). α-Catenin expression was preserved in 3 liver metastases and their corresponding primary tumors. By contrast, 6/10 of lymphogenous metastases showed decreased α-catenin expression. Conclusions Our findings demonstrate a significant down-regulation of α-catenin expression in colorectal cancer which is associated with poor differentiation, higher metastatic potential and unfavorable prognosis. These preliminary results suggest that α-catenin may be a useful marker of invasiveness, metastatic potential, and survival in colorectal cancer patients. J. Surg. Oncol. 1998;68:92–99. © 1998 Wiley-Liss, Inc.
The U.S. Specie Standard, 1792–1932: Some Monetarist Arithmetic

Abstract A new monetary base series is presented for the United States from 1789 to 1932, when the country was on an actual or potential specie standard. The series builds on the Friedman–Schwartz monetary base series and extends it back in time. Monetary balance of payments series are generated, consistent with the monetary base. The time span 1792–1932 is divided into subperiods primarily based on the identification of a monetary authority, also including the greenback period and classic gold standard. Results for the monetary base, exchange market pressure, and economic performance are presented on that basis. The classic gold standard (1879–1913) is undeniably superior to all other periods.
Revealing the impact of index traders on commodity futures markets

Commodity futures prices and volatility increased dramatically from 2006 to 2008, following a period during which index traders, a class of large investment funds, took on massive commodity futures positions. This article presents a method to reveal the extent to which index trader trading activity (volume) might have caused increases in futures price volatility. This approach is useful when position-level data are incomplete or confidential, as with index trader position data. The method is applied to leading agricultural commodity futures data. The impact of index traders is identified during their period of greatest activity, that is, 2005 to 2006, using aggregated volume data that are filtered using wavelet transforms. The filtering decision rule is guided by the Commodity Futures Trading Commission's (CFTC) finding that index traders do not engage in short-run trades. A joint model of futures (filtered) volume and (unfiltered) price volatility is estimated by 2SLS to account for the endogeneity of pr...
Low-energy electron scattering by polar molecules

A systematic theoretical study has been made of elastic, inelastic, total and momentum-transfer cross sections for thermal-energy electrons incident on dipolar target systems. Results are given for pure dipolar targets and for model molecular systems which include monopole, dipole and induced dipole terms in the electron-molecule interactions. The effect of critical dipole moments on low-energy momentum transfer cross sections is carefully examined and it is found that thermal-energy momentum-transfer cross sections for polar molecules are strongly affected by short-range screened coulomb and longer range induced dipole forces as well as the very long-range dipole term in the total scattering interactions. The use of a reasonable molecular field for a polar molecule essentially destroys any useful correlation between momentum-transfer cross sections and dipole moments for different polar molecules; thus there is no particular dipole magnitude which leads to a resonance effect in momentum-transfer cross se...
Analog methods for on-line system identification using noisy measurements.

Nonlinear system on-line identification in presence of noise, using stochastic methods and analog equipment
Effects of the Capon Perceptual-Motor Program on Motor Ability, Self-Concept, and Academic Readiness

Summasy.-The present study determined the benefits of participating in the Capon Perceptual-motor Program. 85 kindergarten children were tested on perceptual-motor abilities, self-concept, and academic readiness. Children were assigned to a group who completed the Capon program or one who spent the same amount of time in free-play. Following completion of the perceptualmotor program, children were retested on the same items. Each dependent variable was analyzed in a 2 x 2 (groups x tests) analysis of variance. Results indicated significant improvement in the motor ability tests but no differences in self-concept and academic readiness from both programs. The early perceptual-motor programs, initially designed for the learning disabled, provided a framework for observing and developing percepmalmotor skills in children ( 1, 5, 6, 7). Because the focus of these programs was on the development of cognitive skills, much research has investigated the effects of specific movement experiences upon cognitive development and selfconcept. Four studies (2, 4, 14, 15) yielded positive but minimal support for the relationship between perceptual-motor training and intellectual development. Likewise, limited evidence has been presented that participation in movement programs does have a positive effect on body image and self-concept (8, 12, 16). Although considerable research has examined the effects of perceptualmotor activities upon the development of cognitive factors, research is lacking which investigates the effects of specific perceptual-motor programs upon development of motor abilities and skills. Previous research emphasizing motor-skill learning of children has usually compared various teaching methods ( 10). The present study determined the effects of participating in the Capon (3) perceptual-motor program by kindergarten children who were tested on perceptual-motor abilities, self-concept, and academic readiness. One group of children completed the Capon program and another group spent the same amount of time in free-play. It was predicted that the children who participated in the Capon program would improve in motor performance and would also score higher on self-concept and academic readiness.
Electrolytic Technique for Making Microdissection Tools

A novel technique for making various microdissection tools by electrolytically etching tungsten wire is described. The type of tool produced depends on how wire is treated prior to and during etching. Cutting wire at a 90° angle and vertically dipping it into the etching solution yields single-tip microneedles. Similarly, etching the frayed ends of previously compressed and mechanically broken wires produces multi-tip microneedles. Cutting wires at a 45°angle, followed by compression, splitting, and differential dipping procedures results in microspatulas and microscalpels.
Preparation and properties of tetrabutylammonium uranium(V) hexachloride

Abstract A method is described for preparing (C 2 H 9 ) 4 NUCl 6 , and other hexachloride complexes of U(V). The is prepared by oxidation of [(C 4 H 9 ) 4 N] 2 UCl 6 or other hexachloride complexes of U(IV) with SOCl 2 . Crystalline (C 4 H 9 ) 4 NUCl 6 is yellow and has a melting point of 177–178°C. Other physical properties and absorption spectra of (C 4 H 9 ) 4 NUCl 6 are given, and the chemistry is discussed.
How does trauma beget trauma? Cognitions about risk in women with abuse histories

This study examined the associations between perceived risks and benefits of drug use, unsafe sexual behavior, alcohol consumption, and aggressive/illegal behavior and reports of expected involvement in those behaviors in a sample of 340 college women with and without histories of interpersonal victimization (i.e., child sexual abuse, child physical abuse, adult sexual assault, and aggravated assault). Trauma victims reported greater perceived benefits and lower perceived risks associated with risky sexual behavior, illicit drug use, and heavy drinking, but not aggressive/illegal behavior than nonvictims. Victims also reported greater expected involvement in risky sex behavior, drug use, and heavy drinking. Regression analyses revealed that the relationship between victim status and expected involvement in risky behaviors was mediated by cognitions about risks and benefits of risky behavior, controlling for trauma-related symptoms. Implications of the findings for the understanding of repeat victimization are discussed.
Solid state: An update: CCD and bubble memories: Commercial units include 64-kbit charge-coupied-device and 92-kbit magnetic-bubble memories

Several changes occurring in computer architecture are providing the `market pull' for these memories. This articles discusses component technology.
Application of an on-site self-interaction-corrected method to Ce and the α-Ce surface

A restricted implementation of the self-interaction-corrected density-functional method is described, and applied to the \ensuremath{\alpha}-\ensuremath{\gamma} transition in fcc Ce and to the \ensuremath{\alpha}-Ce surface. The method, based on a full-potential linear muffin-tin orbital method, does not allow full minimization of the local-density approximation--self-interaction-corrected energy functional, but does contain all of the fundamental energetics of electron localization. This allows an essentially parameter-free, yet economical, determination of whether localization is energetically favored. Application of this method to the \ensuremath{\alpha}-\ensuremath{\gamma} transition in Ce achieves good agreement with other self-interaction-corrected calculations, while the Ce surface provides a good demonstration of the utility of the method. The calculations predict a monolayer of localized f states on the surface, and the resulting surface relaxation is examined.
Thermal expansion and lattice parameters of group IV semiconductors

Thermal expansion is practically and theoretically important for predicting residual stresses in epitaxial films and electronic devices as well as for providing information about the anharmonic properties of materials, and determining their equations of state. Model calculations have had difficulty in accurately representing thermal expansion at high temperatures where such considerations are most important. We utilize a semi-empirical quasi-harmonic model to evaluate available data for silicon and germanium. The model allows us to predict the thermal properties of these semiconductors from near 0 K to the vicinity of their melting points. The approach, consisting of a simplified frequency spectrum with several Einstein terms, provides a convenient mathematical method where a minimum of empirical parameters represent the thermal property.
Polarization of μ + Mesons from the Decay of K + Mesons

The angular distribution of positrons arising in the decay chain K/sub mu 2/ yields mu up +/ yields /sup +/ was measured. It is concluded that the mu mesons from K/sub mu 2/-meson dccay are highly, if not completely, polarized, and the direction of polarization is the same as that occurring in pi yields mu yields e decay. This result strongly suggests that the spin of the K meson, like that of the pi , is zero. lt is aoted that the observed direction of polarization is opposite to that predicted by the ''attribute'' scheme for the fundamenthl particles. (M.H.R.)
Early age of first sexual intercourse and affiliation with deviant peers predict development of SUD: a prospective longitudinal study.

Abstract Objective A recent study has reported that early sexual behavior predicts the development of substance use disorders (SUD). However, that relationship was considered by its authors to be only tentative, because it was based on cross-sectional data rather than longitudinal data. Another recent study reported that deviant activities of peers predict development of SUD, although that relationship has not yet been confirmed. The objective of this study was to assess whether early onset of sexual intercourse and affiliation with deviant peers serve as predictors of the development of SUD, using a prospective longitudinal study design. Method We conducted a prospective longitudinal study of adolescents. These subjects were recruited at the age of 10–12 years, with follow-up evaluations at ages 14, 16, 19, 22, and 25. The sample included 136 male subjects. Cox regression analyses were performed, with age of first intercourse, neurobehavioral disinhibition, exposure to drugs in the neighborhood, and deviant activities of peers as factors in the analyses. Results Earlier age at first intercourse and deviant activities of peers each predicted a significantly higher risk of subsequently developing a SUD (Wald = 8.3, df = 1, p = 0.004; Wald = 7.5, df = 1, p = 0.006, respectively). Conclusions The results of this study confirm that early onset of sexual intercourse and affiliation with deviant peers predict the early development of substance use disorders, using a prospective longitudinal study design.
Targeting Autophagy in BRAF-Mutant Tumors

Summary: Recent studies have highlighted the opportunity to treat cancer by inhibiting autophagy, but have also raised important caveats with this idea. An article in this issue of Cancer Discovery adds to accumulating evidence suggesting that we should focus our efforts (at least initially) on specific tumors where we are most likely to see beneficial effects. Cancer Discov; 5(4); 353–4. ©2015 AACR . See related article by Xie et al., [p. 410][1] [1]: /lookup/volpage/5/410?iss=4
Proportion of circulating chicken heterophils and CXCLi2 expression in response to Salmonella enteritidis are affected by genetic line and immune modulating diet

Genetic line and diet affect chicken heterophil activity and gene expression, and the combination of these factors can enhance disease resistance. This study evaluated the effects of immune modulating diets on heterophil/lymphocyte (H/L) ratio and heterophil chemokine expression in distinct genetic lines. Fayoumi and Leghorn chickens were fed a basal diet or immune modulating diets enhanced with β-glucans, ascorbic acid, or corticosterone. H/L ratios and heterophil gene expression in response to in vitro stimulation with Salmonella enteritidis (SE) were evaluated on days 1, 3, 7, and 21 of diet treatment. The stress-mimicking corticosterone diet influenced H/L ratio in the Leghorn line, but not the Fayoumi line, suggesting resistance to stress-induced immunosuppression in the Fayoumi line. Leghorn line H/L ratios were increased on days 1 and 3 of corticosterone diet treatment, but not days 7 or 21. Expression of CXCLi2 by SE stimulated heterophils was higher in the Leghorn line, suggesting that Leghorns rely more heavily on inflammatory response than do Fayoumis. Corticosterone diet was associated with reduced CXCLi2 expression in heterophils from both lines. Dietary β-glucan or ascorbic acid did not affect H/L ratio or CXCLi2 expression, suggesting that benefits of these immunomodulators may not be evident in healthy birds.
Investigation of RF generator response to plasma instabilities

Radio frequency (RF) generators are one of the critical components for RF delivery systems in plasma applications. The main components of a typical RF power delivery system are RF generator, matching network, and plasma power and impedance monitoring device1. The interaction between specifically RF generator and the plasma chamber carries great importance due to dynamic structure of the plasma impedance. Plasma impedance can vary from impedance values with very low voltage standing wave ratios (VSWRs) to impedance values with high VSWRs in a very short period of time for certain processes. If RF plasma generator can not deliver the desired amount of power at the specific steps during plasma processes, then plasma can not sustain. Furthermore, there might be a high amount of reflected RF power back to the generator that can cause operational failure.
SU‐GG‐T‐426: Feasibility of an Independent Dose Calculation for VMAT with Monte Carlo

Purpose: To investigate the feasibility of a Monte Carlo based independent dose calculation for VMAT in a Novalis Tx linear accelerator equipped with high definition MLC.Method and Materials: Percent depth dose curves were calculated and compared against measured ones in water to commissioning the linear accelerator built on BEAMNRC. From the DICOM containing the information of the VMAT plan all the parameters needed for the simulation were extracted using a MATLAB in‐house software, which with this data create the files for the Monte Carlo simulation and is exported to a LINUX environment where the simulation is done in MCSim egs4 Monte Carlo code. MCSim egs4 software was used to simulate the VMAT treatment plans, in which a cylindrical phantom (15 cm radius and 18 cm depth) is used to compute the dose. In‐house software using a MATLAB platform was utilized to convert the 3D dose file obtained from the Monte Carlo simulation to a file which can be read using commercially‐available software for dose visualization (RIT software), in which can be compared with the treatment plan exported form the TPS. Results: Several simulations in the MCSim egs4 platform were performed and good results have been observed. The accuracy of the calculation is still low but the main purpose of this preliminary work is just for demonstrating the feasibility of the VMAT calculation in Monte Carlosoftware.Conclusion: Based on the results, the Monte Carlo based NovalisTx linear accelerator and the MCSim simulations of treatment on a cylindrical phantom it was demonstrate the feasibility of VMAT independent dose calculation in Monte Carlo.