cssi/SciSciGPT-SciSciNet huggingface dataset:
Multi-Aspect Streaming Tensor Completion

Tensor completion has become an effective computational tool in many real-world data-driven applications. Beyond traditional static setting, with the increasing popularity of high velocity streaming data, it requires efficient online processing without reconstructing the whole model from scratch. Existing work on streaming tensor completion is usually built upon the assumption that tensors only grow in one mode. Unfortunately, the assumption does not hold in many real-world situations in which tensors may grow in multiple modes, i.e., multi-aspect streaming tensors. Efficiently modeling and completing these incremental tensors without sacrificing its effectiveness remains a challenging task due to the uncertainty of tensor mode changes and complex data structure of multi-aspect streaming tensors. To bridge this gap, we propose a Multi-Aspect Streaming Tensor completion framework (MAST) based on CANDECOMP/PARAFAC (CP) decomposition to track the subspace of general incremental tensors for completion. In addition, we investigate a special situation where time is one mode of the tensors, and leverage its extra structure information to improve the general framework towards higher effectiveness. Experimental results on four datasets collected from various real-world applications demonstrate the effectiveness and efficiency of the proposed framework.
Perioperative Outcomes and Complications in Patients With Heart Failure Following Total Knee Arthroplasty.

Abstract Background Heart failure (HF) is a common comorbidity in the aging population and they will require major elective surgery. The purpose of this study is to determine if HF is a risk factor for adverse perioperative outcomes and short-term complications following total knee arthroplasty. Methods The American College of Surgeons National Surgical Quality Improvement Program database was utilized to identify all patients who underwent total knee arthroplasty for osteoarthritis from 2008 to 2014. Any diagnosis other than osteoarthritis was excluded. A total of 111,634 patients were identified and 251 of these patients had a preoperative diagnosis of HF. The main outcomes included operative time, lengths-of-stay, discharge disposition, return to operating room, readmission, and short-term complications, including death. Results Patients with HF were found to have longer hospital stays ( β = 0.59, 95% confidence interval [CI] 0.12-1.06) following total knee arthroplasty, and were more likely to return to the operating room (odds ratio 2.00, 95% CI 1.01-3.94) and be readmitted (OR 1.88, 95% CI 1.21-2.94). In addition, HF was found to be a risk factor for 1 or more complications (OR 1.41, 95% CI 1.05-1.90), wound dehiscence (OR 4.86, 95% CI 1.68-14.03), and myocardial infarction (OR 4.81, 95% CI 1.90-12.16) postoperatively. Conclusion Patients with HF are more likely to have a longer length-of-stay, return to the operating room, and be readmitted. Additionally, they have a higher risk for at least one postoperative complication, myocardial infarction, and wound dehiscence.
GIS and Economic Development

Geographic information systems (GIS) are used by a wide variety of practitioners to help them solve a broad range of spatially-based problems. In this chapter, we focus on the ways in which GIS can be of utility to economic development practitioners who are charged with the task of developing local economies. We begin by defining local economic development (LED). We then report on the extent to which GIS is used by economic development professionals. This is followed by examples of the application of GIS in economic development work. Specifically, we examine the use of GIS in five areas – economic impact analysis, spatial policymaking, identifying potential cluster regions, identifying critical social relationships, and web-based GIS. We conclude the chapter with a few summary statements.
Binary Colloidal Crystal Films Grown by Vertical Evaporation of Silica Nanoparticle Suspensions

Despite intensive research efforts in the synthesis of binary colloidal crystals, the production of well ordered binary colloidal crystal films over large areas continues to be synthetically challenging. In this paper, we investigate the phase behavior of binary mixtures of l-arginine-stabilized 36 and 22 nm silica nanoparticles deposited as centimeter-scale thin films onto a vertical substrate via evaporative assembly. By adjusting the temperature and relative colloid composition under high humidity conditions, we controlled the order of the resultant colloidal crystal films. The domain size of the AB2 binary crystalline phase increased with an excess of small (B) particles and a very slow evaporation rate below 45 °C, with the best results obtained at 30° and 35 °C.
Urological Etiologies of Abdominal Pain

Many physiological changes occur in the genitourinary system during pregnancy. These changes create a diagnostic dilemma when it comes to the work up of the pregnant patient with abdominal pain. Urological conditions are a significant contributor to the symptomatic patient. Alterations in the collecting system such as hydronephrosis can become problematic. The pregnant patient is at risk for infectious processes such as cystitis and pyelonephritis. Kidney stones develop at normal rates during pregnancy, and management has to be customized to the stage of pregnancy. Imaging to diagnose the patient has to be done with the least amount of radiation as required and can be done safely. Urological pain in the pregnant patient can be treated safely and effectively.
With Malice Toward Some: Treason and Loyalty in the Civil War Era

Northerners had a lot of thoughts during the Civil War about what treason was and who was committing it. Given the fact that 11 states had declared themselves independent and were waging war on the...
Examining the short-term follow-up advocacy activities among Latino families of children with autism spectrum disorder

Due to systemic barriers, Latino families of children with autism spectrum disorder often struggle to access needed special education services. To address this need, the Latino Parent Leadership Su...
Wearable sweat sensors

Sweat potentially contains a wealth of physiologically relevant information, but has traditionally been an underutilized resource for non-invasive health monitoring. Recent advances in wearable sweat sensors have overcome many of the historic drawbacks of sweat sensing and such sensors now offer methods of gleaning molecular-level insight into the dynamics of our bodies. Here we review key developments in sweat sensing technology. We highlight the potential value of sweat-based wearable sensors, examine state-of-the-art devices and the requirements of the underlying components, and consider ways to tackle data integrity issues within these systems. We also discuss challenges and opportunities for wearable sweat sensors in the development of personalized healthcare.
Readmission After Abdominal Surgery for Crohn's Disease: Identification of High-Risk Patients.

Although many predictive factors for postoperative morbidity are known, few data are available about readmission after abdominal surgery for Crohn’s disease (CD). The objective of this study is to identify predictive factors and high-risk patients for readmission after abdominal CD surgery. All patients who underwent abdominal surgery for CD in one tertiary referral center between January 2004 and December 2016 were included. Patients who required readmission and those without were compared. Perineal procedures, elective readmissions, and abdominal procedures for non-Crohn’s indications were not included. Nine hundred eight abdominal procedures were performed in 712 patients. Readmission rates were 8, 8.5, 8.6, 8.8, and 8.9% at 30, 60, and 90 days and 12 and 60 months, respectively. The main reasons were wound infection (14%), deep abscess (13%), small-bowel obstruction (13%), and dehydration (11%). Eight (11%) patients required percutaneous drainage and 19 (27%) underwent an unplanned surgery. After multivariate analysis, three independent predictive factors for readmission were identified: older age (OR 1.02, 95%CI 1.005–1.04; p < 0.006), a history of previous proctectomy (OR 3, 95%CI 1.2–9, p < 0.02), and higher blood loss volume during surgery (OR 1.0001, 95%CI 1–1.002, p < 0.05). Readmission occurred in 8–9% of abdominal procedures for CD within 1–3 months after surgery and it required unplanned reoperation in a quarter of them. Identification of high-risk groups and knowledge of the more common postoperative complications requiring readmission help in increasing postoperative vigilance to select patients who may benefit from early interventions.
The Lapidary Poems

Brecht's War Primer is written in "Lapidary" style. The word comes from the Latin Lapis, "stone" and describes the style which was developed for Roman inscriptions. Its most important characteristic was brevity. This was conditioned, first, by the effort required to chisel the word in stone; second, by the realization that for one who speaks to a succession of generations it is seemly to be brief. "Commentaries on Poems by Brecht" by Walter Benjamin
Publishing qualitative adult education research: A peer review perspective

AbstractAs interest in qualitative research has grown over the past decade in scholarly adult education publications, it has become increasingly varied in its application. However, there are no standards for reporting qualitative data. This poses a confusing dilemma for the emerging adult education scholar interested in submitting qualitative research to scholarly journals. One rarely investigated resource that offers insight into this challenge is peer reviewer assessments of qualitative research. The purpose of this study is to identify characteristics of publishable qualitative research to a major international adult and continuing education journal through an in-depth analysis of peer review comments. A grounded theory approach was used to design a content analysis of reviewer comments. From the findings, six major themes emerged as essential to the publication of qualitative research: What is the purpose of the study? How does the purpose build on previous research? How thorough is the methodology? H...
3D printed resistive soft sensors

Sensor design for soft robots is a challenging problem because of the wide range of design parameters (e.g. geometry, material, actuation type, etc.) critical to their function. While conventional rigid sensors are effective for soft robotics in specific situations, sensors that are directly integrated into the bodies of soft robots could help improve both their exteroception and interoception capabilities. To address this challenge, we seek to design sensors that can be co-fabricated with soft robot bodies using commercial 3D printers, without additional modification. We describe an approach to the design and fabrication of compliant, resistive soft sensors, and present characterizations for linear, planar, and 3D sensors. The sensors consist of layers of nonconductive and conductive commercial photopolymers that the printer cures with UV light. We demonstrate the capabilities of our method by printing linear and multilayer soft sensors, and by embedding non-planar heart- and brain-shaped sensors within a humanoid shape, which enables the humanoid to detect contact with its environment. Please see the video for additional details.
Matal v. Tam — A Victory for the Slants, A Touchdown for the Redskins, But an Ambiguous Journey for the First Amendment and Trademark Law

Since 1946, Section 2(a) of the Lanham Act, the law governing trademarks, prohibited the registration of trademarks deemed “immoral, deceptive, or scandalous;” or those which may “disparage” individuals. This provision was the subject of a challenge by an Asian-American dance-rock band named “The Slants” after the trademark examiner refused to register the mark because it was deemed “disparaging” to Asians. Tam, a member of the group, challenged the decision, primarily on First Amendment grounds, and the Supreme Court, in several opinions which produced a unanimous result, concluded that the provision unconstitutionally barred the registration. What was a major victory for Tam raises a number of issues which will be explored in this article. The first involves the rights of Native Americans to challenge names and logos of sports teams many deem disparaging. Although Tam limits the Section 2(a) option for Native Americans, the article asks whether there are there other ways to challenge such marks. The second issue involves the dissection of the “unanimous” opinion by the Supreme Court, which was really a series of concurrences cobbled together to produce an inconclusive whole. Because of this split, the article concludes that the court missed an opportunity to create a more definitive First Amendment standard and did not resolve the issue of whether there should be room for such a provision for trademarks that are entirely commercial and those which may have extra-commercial social and political significance.
Whole-heart coronary MR angiography using a 3D cones phyllotaxis trajectory.

Purpose To develop a 3D cones steady-state free precession sequence with improved robustness to respiratory motion while mitigating eddy current artifacts for free-breathing whole-heart coronary magnetic resonance angiography. Method The proposed sequence collects cone interleaves using a phyllotaxis pattern, which allows for more distributed k-space sampling for each heartbeat compared to a typical sequential collection pattern. A Fibonacci number of segments is chosen to minimize eddy current effects with the trade-off of an increased number of acquisition heartbeats. For verification, phyllotaxis-cones is compared to sequential-cones through simulations, phantom studies, and in vivo coronary scans with 8 subjects using 2D image-based navigators for retrospective motion correction. Results Simulated point spread functions and moving phantom results show less coherent motion artifacts for phyllotaxis-cones compared to sequential-cones. Assessment of the right and left coronary arteries using reader scores and the image edge profile acutance vessel sharpness metric indicate superior image quality and sharpness for phyllotaxis-cones. Conclusion Phyllotaxis 3D cones results in improved qualitative image scores and coronary vessel sharpness for free-breathing whole-heart coronary magnetic resonance angiography compared to standard sequential ordering when using a steady-state free precession sequence.
NMDA receptors enhance the fidelity of synaptic integration

In many central neurons, excitatory synaptic transmission is mediated by two co-expressed ionotropic glutamate receptor subtypes, AMPA and NMDA receptors, that differ in kinetics, ion-selectivity, and voltage-sensitivity. AMPA receptors have fast kinetics and are voltage-insensitive, while NMDA receptors have slower kinetics and exhibit larger conductance at depolarized membrane potentials. Here we report that the voltage-dependency of NMDA receptors intrinsically stabilizes synaptic integration of excitatory postsynaptic potentials (EPSPs) across both spatial and voltage domains. Using computational simulations of synaptic integration in simplified and morphologically realistic dendritic trees, as well as physiological measurements in ex-vivo cortical neurons, we show that NMDA conductances can reduce the variability of somatic responses to spatiotemporal patterns of excitatory synaptic input presented at different membrane potentials and/or dendritic domains. The moderating effect of NMDA conductance on synaptic integration was robust across a wide range of AMPA-to-NMDA ratios, and reflects enhanced NMDA currents occurring at depolarized membrane potentials that are preferentially attained in distal, high-impedance dendritic compartments. The added NMDA current acts to balance voltage-dependent changes in synaptic driving force and distance-dependent attenuation of synaptic potentials arriving at the axon, thereby increasing the fidelity of synaptic integration and EPSP-spike coupling across neuron state (i.e., initial membrane potential) and dendritic location. These results suggest that the intrinsic voltage-sensitivity of NMDA receptors conveys distinct advantages for synaptic integration that are independent of, but fully compatible with, their importance for coincidence-detection and synaptic plasticity.
EVALUATION OF A CLINICAL PRACTICE PATHWAY FOR THE MANAGEMENT OF ACUTE CATHETER-RELATED VENOUS THROMBOEMBOLISM IN PEDIATRIC CARDIOLOGY PATIENTS: YEAR FOUR REVIEW

Pediatric cardiology patients are at high risk of developing venous thromboembolism (VTE). Previously, our Cardiac Center had no consensus on VTE diagnosis, treatment or outpatient management. As part of a multidisciplinary initiative to optimize thrombosis management, members of the Cardiology and
Mental Health v. Mental Illness: A Health Education Perspective

ABSTRACTMental health is different than mental illness. Yet, public and professional’s views of mental health often confuses the two terms. This commentary explores what mental health is, what components consist of a mentally healthy person, and how one can improve and enhance mental health among youth.
Current perspectives on skeletal health and cancer progression across the disease continuum in breast cancer—the role of bisphosphonates

Pre-clinical and clinical evidence suggest that bisphosphonates inhibit both bone resorption and cancer progression. New and updated analyses from several large, controlled studies in pre- and post-menopausal women with early stage breast cancer (BC) suggest that addition of bisphosphonates improves cancer-related outcomes, particularly in patients with a ‘low-estrogen environment’. Further, preliminary clinical data suggest that bisphosphonate therapy may reduce circulating tumour cell numbers (a negative prognostic indicator of disease-free and overall survival) in patients with advanced/metastatic disease. These new findings warrant reconsideration of the therapeutic role of bisphosphonates in BC.
Attachment Security Moderates Effects of Uncontrollable Stress on Preadolescent Hypothalamic–Pituitary–Adrenal Axis Responses: Evidence of Regulatory Fit:

This study examined whether perceived attachment security (i.e., perceptions of caregivers as responsive, available, and open to communication during times of need) and effortful coping work in con...
Solving the Conundrum: Widespread Proteins Annotated for Urea Metabolism in Bacteria Are Carboxyguanidine Deiminases Mediating Nitrogen Assimilation from Guanidine

Free guanidine is increasingly recognized as a relevant molecule in biological systems. Recently, it was reported that urea carboxylase acts preferentially on guanidine, and consequently, it was considered to participate directly in guanidine biodegradation. Urea carboxylase combines with allophanate hydrolase to comprise the activity of urea amidolyase, an enzyme predominantly found in bacteria and fungi that catalyzes the carboxylation and subsequent hydrolysis of urea to ammonia and carbon dioxide. Here, we demonstrate that urea carboxylase and allophanate hydrolase from Pseudomonas syringae are insufficient to catalyze the decomposition of guanidine. Rather, guanidine is decomposed to ammonia through the combined activities of urea carboxylase, allophanate hydrolase, and two additional proteins of the DUF1989 protein family, expansively annotated as urea carboxylase-associated family proteins. These proteins comprise the subunits of a heterodimeric carboxyguanidine deiminase (CgdAB), which hydrolyzes carboxyguanidine to N-carboxyurea (allophanate). The genes encoding CgdAB colocalize with genes encoding urea carboxylase and allophanate hydrolase. However, 25% of urea carboxylase genes, including all fungal urea amidolyases, do not colocalize with cgdAB. This subset of urea carboxylases correlates with a notable Asp to Asn mutation in the carboxyltransferase active site. Consistent with this observation, we demonstrate that fungal urea amidolyase retains a strong substrate preference for urea. The combined activities of urea carboxylase, carboxyguanidine deiminase and allophanate hydrolase represent a newly recognized pathway for the biodegradation of guanidine. These findings reinforce the relevance of guanidine as a biological metabolite and reveal a broadly distributed group of enzymes that act on guanidine in bacteria.
Design Implications for Health Technology to Support LGBTQ+ Community: a literature review

Despite being overlooked by technology designers, digital sources and online channels are still the most popular places for LGBTQ+ people to seek health information after medical professionals, due to fears of discrimination and stigma [5, 4, 6]. Most designs still only ask individuals to identify as one of the binary sex classifications, male or female, and assume heterosexuality, instantly eliminating the appropriate options for over 10 million people in the United States alone who do not fit into those constraints [4]. This creates a void of information for and about LGBTQ+ communities.However, due to the lack of a more robust LGBTQ+ identification system, computer scientists and designers continue to ignore a crucial LGBTQ+ demographic. It also creates inaccuracies in health information technologies and their resulting data sets, which fuels disparity and discrimination. This paper contributes to the health service research community a set of design implications for integrating medically relevant categories for health information technology to support the collection and use of LGBTQ+ identity related information like current sex, sex at birth, gender identity, sexual orientation, preferred name and pronouns and illicit more constructive data collection than the current standard binary male/female sex identifiers.
Subjective responses predict d-amphetamine choice in healthy volunteers.

Abstract Background It is commonly believed that drugs, including stimulants, are used recreationally because of their ability to induce pleasurable subjective effects. However, recreational drug use sometimes occurs in the absence of positive subjective effects, suggesting that other factors contribute. Here, we examine the extent to which the direct subjective effects of amphetamine, a commonly misused stimulant, predict subsequent choice of the drug vs placebo. Methods Healthy adults (N = 112) participated in a five-session amphetamine choice study. On the first four sessions, participants sampled either 20 mg d-amphetamine or placebo in color-coded capsules two times each. On the fifth session, they chose which color (d-amphetamine or placebo) they preferred. We examined the choice of drug vs placebo in relation to demographic characteristics, baseline mood states, personality and subjective and cardiovascular responses to acute administration of the drug. Results Eighty-one participants chose amphetamine (Choosers) while 31 chose placebo (Non-choosers). Overall, amphetamine produced typical stimulant-like effects on subjective questionnaires, and it elevated heart rate and blood pressure vs placebo. Choosers reported greater positive mood, elation and stimulant-like effects following amphetamine compared to Non-choosers. The Choosers also exhibited a greater increase in systolic blood pressure, but not heart rate. The groups did not differ on demographic characteristics, mood states before drug administration or personality. Conclusions These findings support the idea that pleasurable subjective responses to amphetamine, including positive mood, elation, and stimulant-like effects influence behavioral choice of the drug.
Why they shared: recovering early arguments for sharing social scientific data.

Most social scientists today think of data sharing as an ethical imperative essential to making social science more transparent, verifiable, and replicable. But what moved the architects of some of the U.S.’s first university-based social scientific research institutions, the University of Michigan’s Institute for Social Research (ISR), and its spin-off, the Inter-university Consortium for Political and Social Research (ICPSR), to share their data? Relying primarily on archived records, unpublished personal papers, and oral histories, I show that Angus Campbell, Warren Miller, Philip Converse, and others understood sharing data not as an ethical imperative intrinsic to social science but as a useful means to the diverse ends of financial stability, scholarly and institutional autonomy, and epistemological reproduction. I conclude that data sharing must be evaluated not only on the basis of the scientific ideals its supporters affirm, but also on the professional objectives it serves.
The Moderating Effect of Virtuality on Team Trust and Effectiveness

Research problem: The use of virtual teams (VTs) has been growing steadily since the late 1990s. However, there is disagreement on how the virtuality of a team impacts the relationship of trust and team effectiveness. Some studies have suggested that the operationalization of the virtuality has been simplistic, with most researchers treating virtuality as a binary state. Recently, some researchers have sought to explore more complex conceptualizations of virtuality. Research question: How do dimensions of virtuality impact the relationship between intrateam trust and team effectiveness for virtual teams? Literature review: Researchers have been studying the dynamics of VTs for more than 20 years; however, the prevailing measure of virtuality is unidimensional. Following others, we employ a multidimensional measure of virtuality to model three interactions with the relationship between intrateam trust and team effectiveness. By reviewing relevant team effectiveness, intrateam trust, and virtuality literature, we build a model of team effectiveness based on three dimensions of virtuality. Methodology: A total of 230 subjects on 73 project teams were asked to record their interactions while working on a complex case assignment, allowing us to measure the three dimensions of virtuality. Results: Findings indicate that although Distance Virtuality and Member Virtuality moderate the relationship between intrateam trust and effectiveness, Time Worked Virtually does not, supporting the proposition that virtuality is a multidimensional construct. Conclusion: Differential findings support the multidimensional conceptualization of virtuality. We discuss several implications of our findings for virtual team managers, while paying attention to recent changes in team composition resulting from shelter-in-place orders associated with the COVID-19 pandemic.
The Role of Law and Myth in Creating a Workplace that 'Looks Like America'

Equal employment opportunity (EEO) law has played a poor role in incentivizing effective diversity, equity, and inclusion (DEI) and harassment prevention programming. In litigation and investigation, too many judges and regulators credit employers for maintaining policies and programs rather than requiring that employers embrace efforts that work. Likewise, many employers and consultants fail to consider the organizational effects created by DEI and harassment programming. Willful blindness prevents the admission that some policies and programming, although not all, harm those most in need of protection. This approach has resulted in two problems. One is a doctrinal dilemma because important presumptions embedded in anti-discrimination law are tethered to employer practices, many of which do not promote EEO. Simultaneously, society faces an organizational predicament because employer practices are driven by unexamined myths about how to achieve bias and harassment-free environments. Neo-institutional theory explains how this form-over-substance approach to EEO law and practice began and has evolved. This article argues that favorable conditions exist for a shift from a cosmetic to an evidence-based approach to legal compliance. Three developments mark the way forward: 1) a pathbreaking Equal Employment Opportunity Commission (EEOC) report; 2) the EEOC’s call for better research on DEI and harassment prevention program efficacy; and 3) new social science research on those organizational efforts most likely to succeed and those most likely to prompt backlash. To facilitate evidence-based EEO compliance, this article advocates changes in liability standards. Also recommended is the creation of a supervised research safe harbor for employers willing to work with researchers and regulators to assess and continuously improve their DEI and harassment prevention efforts. Finally, the article suggests lawyers more frequently employ Brandeis briefs in litigation to place social science research directly in front of jurists. Solving the twin problems wrought by cosmetic compliance requires taking seriously the findings of social scientists. An evidence-based approach to DEI and harassment prevention would assist in restoring the promise of EEO law to create healthy, diverse, and bias free American workplaces.
The Original Minimally Invasive Hysterectomy, - Safe, Teachable, and More Relevant Today Than Ever

Study Objective TVH is most minimally invasive hysterectomy, but experience with this is decreasing due to lack of training and emphasis on vaginal approach. Yet competence in vaginal surgery allows one to expand their minimally invasive surgical repertoire, including adoption of vNOTES into their practice, vaginal laparoscopic entry into peritoneal cavity in the difficult surgical abdomen, vaginal morcellation after TLH, and drainage of pelvic abscess vaginally. We present 8 years of data showing that the majority of patients presenting to resident clinic at an academic medical center can safely have a resident performed TVH. The benefits of TVH make it vital to expand teaching of this procedure in residency programs and minimally invasive fellowships. Additional objectives: present ideas to incorporate simulation into TVH training and make intraoperative vaginal teaching easier and safer. Design retrospective review of resident hysterectomy experience with a single academic surgeon from 2012-2020. Setting academic medical center, resident teaching clinic. Patients or Participants women needing hysterectomy. Interventions Hysterectomy, with over 95% of cases performed with resident as primary surgeon. Measurements and Main Results -379 hysterectomies: 63% TVH, 31% LAVH/TLH, 8% abdominal. - Demographics of the 231 TVH patients: 29% obese, 23% morbidly obese, 22% with prior C/S, and 4.7% nulliparous - TVH without morcellation: average time 146 mins, uterine weight 170 gm (27-235). - TVH with morcellation: average time 188 mins, average weight 308 gms(55-895). -TVH complications: • Cystotomy 1.3% • Ureteral or bowel injury - 0 • EBL>1000 1.7% • Urgent conversion 1.2% • Return to OR 0.8% • Surgical site infections: 0.8% • Chronic femoral nerve pain: 0.4% Conclusion TVH is safest, least invasive invasive hysterectomy route, even when performed primarily by resident physicians, with low complication rates. Surveys show recent graduates are more likely to perform and prefer TVH over other approaches when they've had more exposure and experience. Support is needed from national organizations and minimally invasive fellowship programs to increase competence among young physicians.
Predicting Student Intention to Wear a Mask to Avoid Contracting COVID-19:

With governments having enforced mask mandates and stressing the importance of wearing masks to avoid contracting COVID-19, still many individuals do not properly adhere to recommended guidelines. ...
Molecular Control of Alfalfa Nodule NADH-glutamate Synthase: A Key for Nitrogen Assimilation

Initial assimilation of symbiotically fixed N into amino acids results from the collaborative action of two enzymes, glutamine synthetase (GS) and glutamate synthase (GOGAT) (McGrath and Coruzzi, 1991), collectively referred to as the GS/GOGAT cycle (Lea et al., 1990). Although substantial efforts have been expended on the biochemical and molecular characterization of root nodule GS, equivalent studies have not been undertaken for GOGAT. In higher plants, GOGAT occurs as three forms that differ in molecular mass (Mr), location within the plant, kinetics, and reductant specificity (Suzuki and Gadal, 1984): NADH-GOGAT (EC 1.4.1.14), NADPH-GOGAT (EC 1.4.1.13) and ferredoxin (Fd)-GOGAT (EC 1.4.7.1). Fd-GOGATs range in mass from 130 to 180 kD, are usually localized in chloroplasts, and are involved in assimilation of ammonia derived from the light-dependent reduction of nitrate and photorespiration (Lea et al., 1990; Suzuki and Gadal, 1984).
Computed Tomography Evaluation in Valvular Heart Disease

Valvular heart disease (VHD) affects 2.5% of US adults and predominantly involves the left-sided cardiac structures. Regurgitant lesions are more common than stenoses, and mitral regurgitation (MR) is the most prevalent abnormality [1]. Doppler echocardiography is the initial imaging modality of choice, allowing for a complete diagnosis in the majority of patients [2]. In cases of poor acoustic window and/or disparate results regarding disease severity, additional tests may be required. Cardiac catheterization is a time-honored modality, but limited by its invasive nature. Magnetic resonance imaging (MRI) has become an excellent noninvasive alternative for both valvular insufficiency and stenosis [3]. Due to the need for radiation and contrast, computed tomography (CT) has a limited role for the evaluation of VHD as the primary indication. It may occasionally be employed as such when echocardiographic results are inconclusive and the patient is not a good candidate for MRI. However, CT is increasingly used for noninvasive coronary angiography, and useful information on valve anatomy and function can simultaneously be obtained from a coronary examination. Also, in patients with primary valve diseases, ruling out obstructive coronary artery disease is deemed a highly appropriate indication and may allow patients to forgo invasive coronary angiography.
Applicability of integrated cell culture quantitative PCR (ICC-qPCR) for the detection of infectious adenovirus type 2 in UV disinfection studies

Practical difficulties of the traditional adenovirus infectivity assay such as intensive labor requirements and longer turnaround period limit the direct use of adenovirus as a testing microorganism for systematic, comprehensive disinfection studies. In this study, we attempted to validate the applicability of integrated cell culture quantitative PCR (ICC-qPCR) as an alternative to the traditional cell culture method with human adenovirus type 2 (HAdV2) in a low-pressure UV disinfection study and to further optimize the procedures of ICC-qPCR for 24-well plate format. The relatively high stability of the hexon gene of HAdV2 was observed after exposure to UV radiation, resulting in a maximum gene copy reduction of 0.5 log10 at 280 mJ cm−2. Two-day post-inoculation incubation period and a maximum spiking level of 105 MPN mL−1 were selected as optimum conditions of ICC-qPCR with the tested HAdV2. An approximate 1:1 correlation of virus quantities by the traditional and ICC-qPCR cell culture based methods sug...
Fostering first-year students’ engagement and well-being through visual narratives

This article reports on a qualitative study that explored the learning outcomes from an innovative instructional method, visual narratives, used in a first-year seminar. Fifty-three students enrolled in a mandatory first semester student success course were instructed to use visual images to tell the story of the first-year experience. Data generated from visual narratives and reflection papers were analyzed to identify emergent themes. The findings extend current understandings of student engagement and well-being, and document the significant role pedagogical strategies can play in shaping meaningful learning experiences that facilitate first-year students’ transition to university. The study's findings have implications for policy and practice at the institutional and classroom levels.
Linear preservers of isomorphic types of lattices of invariant operator ranges

We describe all linear self-mappings of the space of bounded linear operators in an infinite dimensional separable complex Hilbert space which preserve the isomorphism class of the lattice of invariant operator ranges.
Quotients of Calabi–Yau varieties

Let X be a complex Calabi–Yau variety, that is, a complex projective variety with canonical singularities whose canonical class is numerically trivial. Let G be a finite group acting on X and consider the quotient variety X ∕ G. The aim of this paper is to determine the place of X ∕ G in the birational classification of varieties. That is, we determine the Kodaira dimension of X ∕ G and decide when it is uniruled or rationally connected. If G acts without fixed points, then κ(X ∕ G) = κ(X) = 0; thus the interesting case is when G has fixed points. We answer the above questions in terms of the action of the stabilizer subgroups near the fixed points. We give a rough classification of possible stabilizer groups which cause X ∕ G to have Kodaira dimension − ∞ or equivalently (as we show) to be uniruled. These stabilizers are closely related to unitary reflection groups.
Condensed matter. Memories of paste.

Pastes are not the simple materials they appear to be. It seems they have a 'memory': after a force has been applied, they recover and move back in the opposite direction.
On the DIMM interpretation of non-Kolmogorov turbulence in the atmospheric surface layer

Differential image motion monitor (DIMM) is by far the most successful and the most widely used instrument for the measurement of the optical turbulence-induced seeing angle affecting big telescopes. It is actually based upon the hypothesis that refractive index fluctuations in the whole atmosphere follow the Kolmogorov energy cascade turbulence model. However, many in situ measurements show that the the optical turbulence in the atmospheric surface layer can be non-Kolmogorov. In the following is discussed, through a simple and straightforward model, the effect of a non-Kolmogorov optical turbulence, especially in the atmospheric surface layer, on the DIMM seeing angle, and its consequent disagreement with the seeing angle affecting large telescopes.
Urine Specific Gravity As an Indicator of Neonatal Necrotizing Enterocolitis

To the Editor.— We have noted a large increase in urine specific gravity at the onset of necrotizing enterocolitis in many of our premature newborns. A statistical review of 27 cases of necrotizing enterocolitis at our institution has confirmed a significant increase (P Urine specific gravity is a routine test in most neonatal intensive care units.
Chemical Speciation of Calcium and Sodium Naphthenate Deposits by Electrospray Ionization FT-ICR Mass Spectrometry

Calcium and sodium naphthenates are solid deposits and emulsions formed by the interaction of naphthenic acids with divalent (Ca2+, Mg2+) or monovalent (Na+, K+) ions in produced waters. Calcium naphthenate formation, an interfacial phenomenon, is thought to depend largely on tetraprotic naphthenic acids known as “ARN” acids (∼C80) in the crude oil, whereas sodium naphthenates originate from lower molecular weight (C15 to C35) monoprotic naphthenic acids. Here we present detailed chemical heteroatom class composition analyses of calcium and sodium naphthenates from the field based on high resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). In all cases, calcium naphthenate deposits consist predominately of tetraprotic acids with a C80 hydrocarbon skeleton whereas sodium naphthenate emulsions consist mainly of specific monoprotic saturated carboxylic acids. Furthermore, low molecular weight tetraprotic (ARN) acids with C60−77 hydrocarbon skeletons were identified in the calc...
Extreme-angle broadband metamaterial lens

One of the more promising uses of metamaterials is in imaging, where the capability to control the propagation of light could lead to new applications. In particular, the realization of a broadband metamaterial lens that has an almost complete hemispherical field of view that is focused on a flat plane represents a significant step towards such new uses.
Character and The Forms of Friendship in Aristotle

Rejetant l'explication de la distinction entre une forme complete et une forme accessoire de l'amitie chez Aristote defendue par J. Cooper, l'A. montre que la division aristotelicienne ne releve pas de la difference entre qualites morales essentielles et qualites morales extrinseques; mais qu'elle s'appuie sur la conception du bien en general defini comme ce qui plait sans condition, par opposition aux deux autres objets du gout que sont l'utile et l'agreable, dependant des personnes en particulier.
Uninstructed human responding: Sensitivity of low-rate performance to schedule contingencies

College students' presses on a telegraph key occasionally turned on a light in the presence of which button presses produced points later exchangeable for money. Initially, responding was maintained by low-rate contingencies superimposed on either random-interval or random-ratio schedules. Later, the low-rate contingencies were relaxed. Low-rate key pressing had been established for some students by shaping and for others by demonstration and written instructions. After the low-rate contingencies were relaxed, higher response rates generally did not increase point earnings with random-interval scheduling, but did so with random-ratio scheduling. In both cases, shaped responding usually increased, and instructed responding usually continued at an unchanged low rate. The insensitivity of instructed responding typically occurred despite contact with the contingencies. The differential sensitivity to schedule contingencies of shaped responding relative to instructed responding is consistent with the different properties of contingency-governed and rule-governed behavior and is not rate-dependent.
Currently available nonantibiotic preventive or adjunctive therapy of neonatal bacterial infections

The fetus usually resides in a sterile intrauterine environment and depends primarily on the maternal immune system for protection from infection. The fetus acquires passive immunity via transplacental passage of immunoglobulin G. However, when challenged with a pathogen antenatally, natally, or postnatally, the neonate's own immune system may not be adequately developed. Antibody concentrations, as well as neutrophil stores and neutrophil function, are diminished as compared with adults. Even with the advances in antibiotic therapy and supportive care in the neonatal intensive care unit, bacterial sepsis is a life-threatening event to the neonate. Information on the qualitative and quantitative deficiencies in the immune system of the preterm and term neonate, as well as nonantibiotic preventive strategies and adjunctive therapies that are currently available for neonatal bacterial infection, is reviewed.
Monoamine oxidase activity in cultured human skin fibroblasts

Abstract Skin fibroblast cultures were prepared from 21 men, and found to contain types A and B activity of monoamine oxidase, with a possible slight predominance of type A, as evaluated by substrate preferences and differential inhibition by clorgyline and deprenyl. Three women had similar activities. There was a close correlation of activities with different substrates, but there was no quantitative correlation between fibroblast and blood platelet enzyme (type B) activities. The fibroblasts also contained catechol- O -methyltransferase activity exceeding, but poorly correlated with, that in erythrocytes. Fibroblasts may be advantageous in studies of monoamine oxidase in man by providing both types of enzyme as found, for example, in the central nervous system, and by providing a means of removing many in vivo chemical influences from the cells in culture. Nevertheless, great caution must be exercised in generalizing results of this “model” to other tissues, since activities of both enzymes correlated poorly with those in blood cells of the same individuals.
HIV Care Continuum for HIV-Infected Emergency Department Patients in an Inner-City Academic Emergency Department

Study objective The recently released HIV Care Continuum Initiative is a cornerstone of the National AIDS Strategy and a model for improving care for those living with HIV. To our knowledge, there are no studies exploring the entirety of the HIV Care Continuum for patients in the emergency department (ED). We determine gaps in the HIV Care Continuum to identify potential opportunities for improved care for HIV-infected ED patients. Methods A mixed-methods approach was used in 1 inner-city ED in 2007. Data elements were derived from an identity-unlinked HIV seroprevalence study, an ongoing nontargeted HIV screening program, and a structured survey of known HIV-positive ED patients. Results Identity-unlinked testing of 3,417 unique ED patients found that 265 (7.8%) were HIV positive. Of patients testing HIV positive, 73% had received a previous diagnosis (based on self-report, chart review, or presence of antiretrovirals in serum), but only 61% were recognized by the clinician as being HIV infected (based on self-report or chart review). Of patients testing positive, 43% were linked to care, 39% were retained in care, 27% were receiving antiretrovirals, 26% were aware of their receiving antiretroviral treatment, 22% were virally suppressed, and only 9% were self-aware of their viral suppression. Conclusion To our knowledge, this study is the first to quantify gaps in HIV care for an ED patient population, with the HIV Care Continuum as a framework. Our findings identified distinct phases (ie, testing, provider awareness of HIV diagnosis, and linkage to care) in which the greatest opportunities for intervention exist, if appropriate resources were allocated. This schema could serve as a model for other indolent treatable diseases frequently observed in EDs, where continuity of care is critical.
Characteristics and classification of three granite-derived soils in peninsular Thailand

Abstract The Phuket, Thung Wa and Huai Pong soils of this study form the Phuket catena and are extensive in Narathiwat province in the southern part of peninsular Thailand where they were studied in the field and sampled. The Phuket soils on the higher-lying positions and the Huai Pong soils on the nearly-level, lower positions, have developed argillic horizons and are Ultisols. The Thung Wa soils, which occur on intermediate positions and receive sediments from upslope, have cambic horizons and are classified as Inceptisols. All soils formed from Late Cretaceous or Early Tertiary granite or from sediments derived frome these granites under a tropical rain forest climate. They contain kaolinite as the predominant clay mineral and are highly leached, with base saturation of less than 35% in their B horizons. Cation exchange capacities are less than 6 mequiv. per 100 g soil and exchange acidity and exchangeable aluminium are high. Field and thin-section studies as well as particle-size analysis indicate considerable clay translocation from A to B horizons in the Phuket and Huai Pong soils and little clay movement in the Thung Wa soils.