cssi/SciSciGPT-SciSciNet huggingface dataset:
Gravity perturbed Crapper waves

Crapper waves are a family of exact periodic travelling wave solutions of the free-surface irrotational incompressible Euler equations; these are pure capillary waves, meaning that surface tension is accounted for, but gravity is neglected. For certain parameter values, Crapper waves are known to have multi-valued height. Using the implicit function theorem, we prove that any of the Crapper waves can be perturbed by the effect of gravity, yielding the existence of gravity–capillary waves nearby to the Crapper waves. This result implies the existence of travelling gravity–capillary waves with multi-valued height. The solutions we prove to exist include waves with both positive and negative values of the gravity coefficient. We also compute these gravity perturbed Crapper waves by means of a quasi-Newton iterative scheme (again, using both positive and negative values of the gravity coefficient). A phase diagram is generated, which depicts the existence of single-valued and multi-valued travelling waves in the gravity–amplitude plane. A new largest water wave is computed, which is composed of a string of bubbles at the interface.
Induction Motor-Drive Systems with Fault Tolerant Inverter-Motor Capabilities

A low-cost fault tolerant drive topology for low- speed applications such as "self-healing/limp-home" needs for vehicles and propulsion systems, with capabilities for mitigating transistor open-circuit switch and short-circuit switch faults is presented in this paper. The present fault tolerant topology requires only minimum hardware modifications to the conventional off-the-shelf six-switch three-phase drive, with only the addition of electronic components such as triacs/SCRs and fast-acting fuses. In addition, the present approach offers the potential of mitigating not only transistor switch faults but also drive related faults such as rectifier diode short-circuit fault or dc link capacitor fault. In this new approach, some of the drawbacks associated with the known fault mitigation techniques such as the need for accessibility to a motor neutral, overrating the motor to withstand higher fundamental rms current magnitudes above its rated rms level, the need for larger size dc link capacitors, or higher dc bus voltage, are overcome here using the present approach. Given in this paper is a complete set of simulation results that demonstrate the soundness and effectiveness of the present topology.
The Impact of Supervisory Support on Organizational Commitment, Career Satisfaction, and Turnover Intention for Hospitality Frontline Employees

This study explores the relationships among supervisory support, organizational commitment, career satisfaction, and turnover intention of frontline employees in the hospitality industry. The results indicate that supervisory support had a positive effect on both employees’ organizational commitment and their career satisfaction. Although organizational commitment had no direct effect on career satisfaction, a higher level of organizational commitment reduced turnover intention. Moreover, organization commitment mediated the relationship between supervisory support and turnover intention. The results of this study will assist operators in selecting effective employee training and development approaches, as well as researchers in further investigating impact of supervisory support.
Implementation and performance of parallelized elegant

The program elegant is widely used for design and modeling of linacs for free-electron lasers and energy recovery linacs, as well as storage rings and other applications. As part of a multi-year effort, we have parallelized many aspects of the code, including single-particle dynamics, wakefields, and coherent synchrotron radiation. We report on the approach used for gradual parallelization, which proved very beneficial in getting parallel features into the hands of users quickly. We also report details of parallelization of collective effects. Finally, we discuss performance of the parallelized code in various applications.
Potentiated L-type Ca2+ Channels Rectify

Strong depolarization and dihydropyridine agonists potentiate inward currents through native L-type Ca2+ channels, but the effect on outward currents is less clear due to the small size of these currents. Here, we examined potentiation of wild-type α1C and two constructs bearing mutations in conserved glutamates in the pore regions of repeats II and IV (E2A/E4A-α1C) or repeat III (E3K-α1C). With 10 mM Ca2+ in the bath and 110 mM Cs+ in the pipette, these mutated channels, expressed in dysgenic myotubes, produced both inward and outward currents of substantial amplitude. For both the wild-type and mutated channels, we observed strong inward rectification of potentiation: strong depolarization had little effect on outward tail currents but caused the inward tail currents to be larger and to decay more slowly. Similarly, exposure to DHP agonist increased the amplitude of inward currents and decreased the amplitude of outward currents through both E2A/E4A-α1C and E3K-α1C. As in the absence of drug, strong depolarization in the presence of dihydropyridine agonist had little effect on outward tail currents but increased the amplitude and slowed the decay of inward tail currents. We tested whether cytoplasmic Mg2+ functions as the blocking particle responsible for the rectification of potentiated L-type Ca2+ channels. However, even after complete removal of cytoplasmic Mg2+, (−)BayK 8644 still potentiated inward current and partially blocked outward current via E2A/E4A-α1C. Although zero Mg2+ did not reveal potentiation of outward current by DHP agonist, it did have two striking effects, (a) a strong suppression of decay of both inward and outward currents via E2A/E4A-α1C and (b) a nearly complete elimination of depolarization-induced potentiation of inward tail currents. These results can be explained by postulating that potentiation exposes a binding site in the pore to which an intracellular blocking particle can bind and produce inward rectification of the potentiated channels.
On the Theory and Practice of Socialism

Book reviewed in this article: Power in Movement: Social Movements, Collective Action and Politics. Sidney Tarrow. Socialism: Ideals, Ideologies, and Local Practice. C. M. Harm, ed. The Power of Symbols against the Symbols of Power: The Rise of Solidarity and the Fall of State Socialism in Poland. Jan Kubik.
Imaging in lung cancer: positron emission tomography scan

In the past 5 yrs, positron emission tomography (PET), usually used with 18 F‐fluoro‐2‐deoxy-glucose (FDG), has become an important imaging modality in lung cancer patients. Currently, the use of FDG-PET in respiratory oncology is mainly for diagnosis and staging. Standard indications are the evaluation of an indeterminate solitary pulmonary nodule or mass, where FDG-PET has proven to be significantly more accurate than computed tomography (CT) in the distinction between benign and malignant lesions. Several studies have also convincingly demonstrated that locoregional lymph node staging by FDG-PET (in correlation with CT images) is significantly superior to CT, with a negative predictive value equal or even superior to mediastinoscopy. FDG-PET also improves extrathoracic staging, through the detection of lesions missed at conventional imaging or characterization of lesions that remain equivocal on conventional imaging. Many European countries now have or plan reimbursement in these indications. Large-scale randomized studies should now focus on the impact this accurate tumour imaging technique has on treatment outcome and cost-efficacy. Ongoing studies in specialized centres focus on the use of FDG-PET in more advanced clinical applications, such as planning radiotherapy, response evaluation after radiotherapy or (induction) chemotherapy, follow-up and early detection of recurrence, and prognostic information in this in vivo measurement of tumour glucose metabolism. After a short note on the technique used and a summary of the current common indications of diagnosis and staging, this paper will deal mainly with two of the more advanced clinical applications of FDG-PET in locally advanced nonsmall cell lung cancer: radiation treatment planning and assessment of induction chemotherapy. Finally, it should be mentioned that a whole new field of applications of positron emission tomography in molecular biology, using new radiopharmaceutical probes, is under extensive investigation. These techniques are promising for future use in very early response monitoring during chemo- or radiotherapy, in evaluation of novel molecular-targeted lung cancer therapies, or even gene therapy.
Unique optical properties and applications of hollow gold nanospheres (HGNs)

Abstract The field of plasmonics is driven by the investigation of the interaction between the electromagnetic (EM) field (light) and metal nanostructures. In particular, noble metal nanoparticles have been studied extensively due to their interesting surface plasmon resonance (SPR) properties and related applications. Tuning of the SPR position in energy is possible through synthetic variation in size, shape, aspect ratio, the dielectric constant of the surrounding media, surface morphology and whether particles are aggregated. One unique metal structure capable of meeting a wide range of criteria for multiple applications calling for enhanced EM field is the hollow gold nanosphere (HGN). HGNs have hollow solvent filled dielectric cores and polycrystalline gold shells that, due to the two surfaces or interfaces, can generate enhanced EM field. They possess a unique combination of properties that include small size (20–125 nm), large surface to volume (S/V) ratios, spherical shape, narrow and tunable SPR (∼520–1000 nm), and biocompatibility. Their surfaces can also be easily functionalized to target and deliver biomolecules and are resistant to photobleaching. Additionally their scattering and absorption cross-sections can be tailored, making them excellent candidates for a variety of applications including surface enhanced Raman scattering (SERS), sensing, imaging, drug delivery, site specific silencing, and photothermal therapies (PTTs). This review will provide a perspective on the continued investigation of the plasmonic properties associated with HGNs and how these properties can be refined and harnessed for emerging applications.
The Symbolic and Substantive Representation of LGB Americans in the US House

As public opinion in the United States has shifted on questions of gay rights in the last decade, some members of Congress have likewise adjusted their behavior to address issues of concern to their lesbian, gay, and bisexual (LGB) constituents. We argue that the number of LGB constituents in a district affects the representatives’ behavior. Although the size of the LGB population positively affects the substantive representation members provide to their LGB constituents, population is conditioned by majority public opinion on LGB issues in determining members’ low-cost, symbolic representation of LGB constituents. More favorable majority attitudes toward the minority allow the member to provide more symbolic representation to LGB constituents through low-cost gestures and actions. Statistical tests examining the effects of minority population and public opinion on House members’ voting records, bill sponsorships and cosponsorships, and caucus memberships from 2005 to 2011 provide support for our hypotheses.
Physical Activity Education's Contributions to Public Health and Interdisciplinary Studies: Documenting More than Individual Health Benefits

To increase the primacy of the field of physical education, some have suggested a greater emphasis on how physical activity contributes to public health. This article briefly analyzes the benefits of such a shift.
Tricalcium Phosphate as an Additive to CSM and All-Purpose Wheat Flour for Control of Insect Infestations

Attempts were made to rear 8 species of stored-product insects on either CSM (cornmeal, soy flour, and dry milk blend) or all-purpose wheat flour diets supplemented with 2 or 3% of tricalcium phosphate. Callosobruchus maculates (F.) and Sitophilus oryzae (L.) did not develop on either CSM or on all-purpose wheat flour, and Plodia interpunctella (Hubner) failed to develop on any of the wheat flour diets or on CSM diets containing tricalcium phosphate. Tricalcium phosphate appeared to enhance the development of Lasioderma serricorne (F.) when it was added to CSM diets. All-purpose wheat flour with tricalcium phosphate was the most unfavorable medium for all species tested. The species that developed on diets supplemented with tricalcium phosphate were able to produce another generation when returned to their normal laboratory diet.
HARDY-WEINBERG AND FERTILITY SELECTION.

Reponse a l'article de Davis et al (1986): «Evolutionary implications of chromosomal polymorphisms in Peromyscus boylii from south western Mexico»
Reversible Intermolecular E–H Oxidative Addition to a Geometrically Deformed and Structurally Dynamic Phosphorous Triamide

The synthesis and reactivity of geometrically constrained tricoordinate phosphorus (σ3-P) compounds supported by tridentate triamide chelates (N[o-NR-C6H4]23–; R = Me or iPr) are reported. Studies indicate that 2 (P{N[o-NMe-C6H4]2}) adopts a Cs-symmetric structure in the solid state. Variable-temperature NMR studies demonstrate a low-energy inversion at phosphorus in solution (ΔG⧧exptl298 = 10.7(5) kcal/mol), for which DFT calculations implicate an edge-inversion mechanism via a metastable C2-symmetric intermediate. In terms of reactivity, compound 2 exhibits poor nucleophilicity, but undergoes oxidative addition at ambient temperature of diverse O–H- and N–H-containing compounds (including alcohols, phenols, carboxylic acids, amines, and anilines). The resulting pentacoordinate adducts 2·[H][OR] and 2·[H][NHR] are characterized by multinuclear NMR spectroscopy and X-ray crystallography, and their structures (which span the pseudorotation coordinate between trigonal bipyramidal and square planar) are eval...
Increased cerebrospinal fluid 5‐hydroxytryptamine and 5‐hydroxyindoleacetic acid in Kleine‐Levin syndrome

A 17-year-old man with the Kleine-Levin syndrome died unexpectedly of cardiopulmonary arrest during a period of autonomic instability that followed an episode of megaphagia. At autopsy, the only pertinent finding was mild depigmentation of the locus ceruleus and substantia nigra. Premortem CSF levels of 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) levels were elevated. These findings indicate that many symptoms of the Kleine-Levin syndrome are a result of a neurotransmitter imbalance in the serotonergic pathway of the brainstem.
When does the emergence of a stationary bandit lead to property insecurity

The economic theory of the state is often illustrated using examples in which the emergence of a stationary bandit—a ruler who is able to centralize military and fiscal capacity—improves property security. This article argues that the economic theory of the state also provides insight into the conditions when the emergence of a stationary bandit leads to property insecurity. In our reading of the economic theory of the state, the rise of a stationary bandit is only expected to improve property security writ large when coercive power is unquestioned, political institutions constrain rulers, powerful groups do not dominate the political process, and de facto property institutions are inefficient. The framework clarifies why Afghanistan’s first stationary bandit, Abdur Rahman, maintained state ownership over all land, waged violent repopulation campaigns, and drastically increased taxation before, during, and after centralizing state power from 1880 to 1901, while basic land use rights emerged from 1747 to 1...
Inhibition of O2 Fixation in Spinach Chloroplasts by Phosphonates at Different Temperatures

Considerable information is available on the inhibition of the light reactions of photosynthesis including electron transport and photophos-phorylation (1,2). Compounds that specifically inhibit enzymes involved in carbon metabolism are much less common.
Assessing multidimensional complex decision making with Situational Judgment Tests

The decisions that humans make are often multidimensional and complex, and system aids have been developed to support decision-making. However it is often difficult to evaluate the decision making of both the human or these system decision aids as decision making is a skill that is difficult to quantify. Traditionally, decision-making skill is assessed primarily through tasks or questionnaires. The challenge with those approaches is that measures of decision-making skill are often unidimensional. The Situation Judgment Test (SJT) is multidimensional and comprises scenarios obtained from accounts of real-world experiences, each with response options from which respondents select the most effective response. Although SJTs often show criterion-validity, this is typically obtained from post-hoc analysis. The present study seeks to evaluate the dimensionality of SJT scenarios, which are based on real-world decisions that are akin to the type of decisions that decision support systems seek to aid with. Fifteen SJT scenarios were administered to 94 participants, along with several measures of dimensions deemed relevant to real-world decision making. Most of the dimensions were able to predict performance on at least one scenario. Certain dimensions seemed to predict performance on more scenarios than others did. The results indicated that the SJT scenarios were able to incorporate some dimensions relevant to decision making. Future research should examine other measures for evaluating SJTs prior to using them to assess decision making.
MEASUREMENT OF VELOCITIES IN SOLITARY WAVES

The water surface profiles and corresponding water particle velocities of several solitary waves have been obtained. The measurements of the horizontal and vertical velocity components are conducted using a two-dimensional laser-Doppler velocimeter (LDV). Results are presented for three different wave height-to-depth ratios: ϵ = 0.11, 0.19 and 0.29. The experimental results are compared with existing theories which follow different orders of approximation, and the theories are found to agree well with the experiments. It has been convincingly demonstrated that the LDV measurement technique offers an unmatched advantage to determine the water particle velocities under water waves, especially in the region above the still water level.
Coming of Age in Trade

In June 1719, as Caleb Dickinson lay dying, he wrote a letter to his children. Since they were quite young at the time—the oldest was eight—this letter-from-the-grave was a classic in the genre of parental advice, missing no opportunity to play on the pathos of the situation in order to drive home the lessons being offered. (The pathos was somewhat undermined by the fact that Caleb survived the illness and lived into his children’s adulthood.) However, while it is addressed to “My Dear Tender Children,” the letter largely ignores his daughters, who are simply admonished to marry well with the consent of their guardians. Instead, it focuses its attention on his two sons whose transition from youth to manhood was clearly more problematic. To guide his son’s development, Dickinson named four trustees (whose qualities he enumerated at length) and enjoined the boys to “take these my friends to be your best friends and follow their direction and advice as you g[row] to be men.” Dickinson expected his sons to be bound apprentice “to a suitable trade and to honest friends,” clearly intending them to pursue a trade in their adult lives, and he also enjoined them to fear God in terms appropriate for the family’s Dissenting background. The pitfalls Dickinson wanted his sons to avoid were the classic bugbears of middling existence—idleness, profligacy, dishonesty, and licentiousness—vices to be countered by virtues such as industry, sincerity, honesty, and sobriety (extending far beyond drink per se).
Subnuclear Trafficking and the Nuclear Matrix

The case has been made for the presence of sequences different from nuclear localization signals that determine the fate of a protein once inside the nucleus. The number of examples where such signals have been studied in detail is still small, and it is too early to draw conclusions about their similarity or multiplicity. If the described signals act like other targeting domains, they will most likely function by providing a surface for protein-protein interactions. If transcription factors come with signals for specific subnuclear “addresses”, and if their disruption can compromise transcription factor function, then one ought to think about what those addresses are, and how they relate to the position and/or compartmentalization of the promoters regulated by these factors. The prevailing evidence for the association of specific chromatin regions (MARs) with the nuclear matrix, and the positive effect MARs have on the transcription of flanking genes has led to the model that the association of genes with the nuclear matrix increases their ability to be expressed, possibly by providing a more “open” chromatin environment. It might be equally attractive to think about another mechanism, by which association with the nuclear matrix of both promoters and transcription factors might increase the probability of productive assembly of transcription initiation complexes. The fact that “transcriptosomes” appear to have specific locations in the nucleus, and that they can function on the isolated nuclear matrix encourages to think about how such complexes might assemble in specific places. It will be highly informative to investigate whether three-way interactions between genes, sequence-specific transcription factors, and nuclear matrix components play a role in their assembly.
Aeromonas, Vibrio cholerae, and Related Bacteria

Aeromonas species are ubiquitous in soil and water sources throughout the world. Infection commonly results from exposure to untreated water, but also may result from consuming contaminated foods such as produce, meat, and dairy products. Aeromonads are not part of the normal human intestinal flora. They were initially believed to be non-pathogenic, as they are occasionally isolated from the stool of asymptomatic persons. They are increasingly recognized as a cause of gastroenteritis in both healthy and immunocompromised adults and children, based on the recovery of the organism from the stool of symptomatic patients in the absence of other pathogens, and subsequent complete response to antibiotic therapy. The motile Aeromonas hydrophila and Aeromonas sobria most often cause gastrointestinal disease in humans, although other species may as well.
Podocyte integrity in proteinuric kidney diseases: Gone with the Wnt

P dysfunction/injury is one of the major culprits that result in defective glomerular filtration, leading to proteinuria and glomerulosclerosis. However, its underlying mechanism remains poorly understood. Recent studies in our laboratory have shown that Wnt/β-catenin signaling, a developmental signal cascade that is pivotal for nephron formation and kidney development plays a critical role in mediating podocyte injury and proteinuria. 1) Wnt induction and β-catenin activation are evident in a variety of proteinuric kidney diseases such as focal segmental glomerulosclerosis (FSGS) and diabetic nephropathy both in animal models and in humans. 2) Over-expression of Wnt1 gene in vivo activates glomerular β-catenin and aggravates the adriamycin-initiated podocyte injury and albuminuria, whereas blockade of Wnt signaling with Dickkopf-1 and Klotho ameliorates podocyte lesions. 3) Mice with podocyte-specific knockout of β-catenin are protected against development of albuminuria after injury. 4) Targeted inhibition of β-catenin with a novel small molecule inhibitor (ICG-001) also protects podocyes from injury and ameliorates proteinuria in vivo. 5) Wnt/β-catenin in vitro induces Snail1, PAI-1, MMP-7 and multiple genes of the renin-angiotensin system (RAS), leading to podocyte dysfunction. 6) MMP-7, a major transcriptional target of Wnt/ β-catenin, specifically mediates the ecto-domain shedding of nephrin in podocytes both in vitro and in vivo. Altogether, these studies illustrate a pivotal role of hyperactive Wnt/β-catenin signaling in the pathogenesis of podocyte injury and proteinuria.
Partial right eigenstructure assignment based design of robust damping controller

The paper presents the design of an output feedback based centralized, damping controller using partial right eigenstructure assignment technique. The algorithm exploits the extra degrees of freedom provided by multi-input-multi-output (MIMO) systems in partially assigning a few, selected eigenvectors in addition to corresponding eigenvalues. Singular value decomposition (SVD) is used for determining the basis vectors for the achievable closed-loop eigenvectors. A derivativefree, direct search optimization technique has been used to solve the controller design problem. Robustness of the damping of inter-area modes to operating point changes is achieved by incorporating multiple models of the system in the optimization problem. The designed controller provides a supplemtary signal to voltage reference of a static VAr compensator (SVC). Remote feedback signals have been utilized and feedback signal selection is based on the input/output controllability metric. An algorithm explaining the framework and the results of its implementation on the IEEE 68 bus system has been provided. The results show the effectiveness of the controller in exploiting the eigenstructure of the system for damping inter-area oscillations.
Massive adrenal vein aneurysm mimicking an adrenal tumor in a patient with hemophilia A: a case report and review of the literature

Visceral venous aneurysms are exceedingly rare, and until now, there have been no reports of this phenomenon in the adrenal vasculature. This report details the first adrenal venous aneurysm reported in the literature. The aneurysm presented as an 18-cm mass that was initially suspected to be a hematoma or tumor on the basis of the complex medical history of the patient, which included hemophilia A and testicular cancer. After surgical excision, pathologic examination confirmed this mass to be a 15.9-cm adrenal vein aneurysm, the largest aneurysm of any type or location recorded in the medical literature. A 58-year-old caucasian male with hemophilia A presented to the emergency room of another institution with abdominal pain, blood in the stool, and a history of diverticulosis and symptomatic hemorrhoids. A large, left-sided adrenal mass was detected by computed tomography, and because of the patient’s hemophilia A and imaging consistent with a hemorrhagic mass, a hematoma was initially suspected. The patient was transferred to our institution, monitored for further bleeding with a stable hospital course, and discharged from the hospital under close monitoring. After 7–8 weeks with no change in the size of the mass, concerns grew regarding increasing symptoms of both satiety and mass effects from the large anomaly, as well as about the patient’s complicated medical history, which also included cancer. Surgical excision was recommended because of the concerns about increasing symptoms and the possibility of a malignancy. Correction and maintenance of factor VIII levels were incorporated pre-, intra-, and postoperatively, and en bloc surgical resection was performed to minimize bleeding and provide oncologic extirpation of the mass. A bowling ball-sized mass was removed, and careful pathologic examination revealed the mass to be a venous adrenal aneurysm. After a brief hospital stay, the patient made a full recovery. Extensive review of the literature revealed 11 reports of adrenal artery aneurysms but no reported case of an adrenal aneurysm arising from the venous system. Several case reports suggest a correlation between hemophilia and aneurysms. In patients with inherited clotting disorders such as hemophilia A, aneurysms may present in atypical fashions and should be carefully ruled out.
The Epistemological Dimensions and Dynamics of Professional Dialogue In Self-Study

In this chapter, we articulate dialogue as a research stance or methodology. We begin by outlining our process in exploring dialogue. We propose that professional dialogue allows researchers to explore ideas, theories, concepts, and practice so that the understandings or assertions for action uncoffered provide a basis for confident action: physical, mental, or explanatory. Once an idea is put forward in this method of inquiry, it is met with reflection, critique, supportive anecdote, or explanation and analysis which interrogates and thus establishes the power of the learning as a basis for meaning making, understanding, or practical action. In a similar way, a situation, context, or experience is met with critique and analysis whereby competing, modified, or deeper supportive response can follow. Even if the dialogue gets passionate at times, it is not argument or disputation. In dialogue, practice, theory, and experience are intertwined. Since the investigation is focused on human interaction, the “findings” or “results” that emerge and the inquiry itself exist in an inconclusive state within a zone of maximal contact in the time frames of past, present, and future. To anchor this definition, we provide an analysis of segments of on-line chats. Next we position our ideas concerning dialogue against other historical and theoretical perspectives. We consider what dialogue is rather than what it should be; explore the use of dialogue for a purpose rather than just to converse, and, finally, articulate the dilemma of reaching consensus or truth in contrast with embracing multiple interpretations. We further support readers’ understanding of what we mean by dialogue as methodology or research stance through the presentation of our past work in terms of our current understanding of dialogue. Finally we re-present our definition of dialogue through an analysis of an audiotaped conversation recorded while writing this chapter. A method for examining professional practice must embrace the inconclusive nature of human interaction and yet allow for findings about which one can have su3cient confidence that action can be taken and that understanding from one situation can be used in analysis of another.
Enhanced UV light detection using a p-terphenyl wavelength shifter

Abstract UV-glass photomultiplier tubes (PMTs) have poor photon detection efficiency for wavelengths below 300 nm due to the opaqueness of the window material. Costly quartz PMTs could be used to enhance the efficiency below 300 nm. A less expensive solution that dramatically improves this efficiency is the application of a thin film of a p-terphenyl (PT) wavelength shifter on UV-glass PMTs. This improvement was quantified for Photonis XP4500B PMTs for wavelengths between 200 nm and 400 nm. The gain factor ranges up to 5 . 4 ± 0 . 5 at a wavelength of 215 nm, with a material load of 110 ± 10 μ g ∕ cm 2 (894 nm). The wavelength shifter was found to be fully transparent for wavelengths greater than 300 nm. The resulting gain in detection efficiency, when used in a typical Cerenkov counter, was estimated to be of the order of 40%. Consistent coating quality was assured by a rapid gain testing procedure using narrow-band UV LEDs. Based on these results, 200 Photonis XP4500B PMTs were treated with PT for the upgraded low-threshold Cerenkov counter (LTCC) to be used in the CEBAF Large Acceptance Spectrometer upgraded detector (CLAS12) at the Thomas Jefferson National Accelerator Facility.
Developing Open Mindedness for Coaching Expertise.

Effective coaches have the ability to recognize and use their athletes' strengths while at the same time finding ways to improve their weaknesses. An essential part of coaching effectiveness and expertise is a coach's ability to be introspective and reflective with an “open mind” that allows him or her to critically look back at past experiences, recognize weaknesses, and revise techniques when necessary. This article presents eight concepts of open mindedness that can help a coach to develop expertise.
Increasing STEM Competence in Urban, High Poverty Elementary School Populations

Enhancing STEM competence (e.g., interests, knowledge, skills, and dispositions) among urban, high poverty, elementary school populations in the United States (U.S.) is and remains a growing national concern, especially since Science, Technology, Engineering and Mathematics (STEM) competence is and will continue to be a necessary requisite for gainful employment in the future, according to workforce development experts. In an attempt to address this gap, many urban elementary schools have begun to offer STEM-related programs to increase STEM learning at an early age. STEM competence (interest, knowledge, skills, and dispositions), however, remains low. This paper results in a matrix used to analyze children's fictional literary selections and a model that argues that elementary teachers, as the first point of contact with young students, can affect STEM competence. By adopting a more culturally responsive pedagogy that attends to the 21st Century Learning Skills and the Next Generation Science Standards, teachers can choose literature that serves to excite and reinforce STEM learning.
Punishing the Vulnerable: Exploring Suspension Rates for Students With Learning Disabilities:

Students with learning disabilities are suspended at disproportionate rates in schools. Although research has shown the ineffectiveness of suspension as a disciplinary tool, school administrators c...
Interaction of Antiplane Shear Waves with Elastic Fiber in the Presence of a Thin Interphase Piezoceramic Layer

An analytical-numerical method for the investigation of steady-state wave fields in an unbounded elastic medium scattered by a non-canonical form of elastic fiber in the presence of a thin piezoceramic interphase of variable thickness and low stiffness is proposed. The components of the electroelastic system are in perfect mechanical contact; the electric induction is zero on the surface of the interphase. The interphase material belongs to the 6 mm crystallographic class. The elastic system is in the conditions of antiplane motion. The research algorithm is based on the modified null field method. The influence of mechanical and geometric parameters of the composite on the amplitude-frequency characteristics of SH-waves scattered by a fiber of non-canonical form into a far-field zone is analyzed.
Acinetobacter baumannii and MRSA contamination on reusable phlebotomy tourniquets.

OBJECTIVE: A study was undertaken to determine the incidence of Acinetobacter baumannii and methicillin resistant Staphylococcus aureus (MRSA) contamination on reusable phlebotomy tourniquets at Wilford Hall Medical Center, Lackland AFB, TX. DESIGN: Reusable tourniquets (n=200) were collected after being used for one day in the outpatient blood collection center (n=100) or during morning blood collection rounds on inpatient wards (n=100). Tourniquets were cultured and growth was screened for A. baumannii and S. aureus. A. baumannii isolates were identified using colonial morphology, oxidase, and GNI+ card on Vitek Legacy. S. aureus isolates were identified and screened for MRSA using colonial morphology, catalase, Staphaurex, and Oxacillin screening agar. RESULTS: Each outpatient tourniquet was used on an average of 33 patients and each inpatient tourniquet was used on an average of 11 patients. The overall contamination rate was 9% (18/200). A. baumannii was isolated from 11% (11/100) of the outpatient tourniquets and 3% (3/100) of the inpatient tourniquets. Methicillin-susceptible S. aureus was isolated from 2% (2/100) of the outpatient tourniquets and 3% (3/100) of the inpatient tourniquets. No MRSA was isolated. One outpatient tourniquet had both A. baumannii and methicillin-susceptible S. aureus. CONCLUSIONS: Reusable tourniquets could serve as a potential reservoir for bacterial pathogens. ABBREVIATIONS:CDC = Centers for Disease Control; MRSA = methicillin resistant Staphylococcus aureus; TSB = trypticase soy broth; TSA II = trypticase soy agar with 5% sheep blood; GNI = gram negative identification; BAMC = Brooke Army Medical Center.
Expansion of regulatory T cells using low-dose interleukin-2 attenuates hypertension in an experimental model of systemic lupus erythematosus

Systemic lupus erythematosus (SLE) is a chronic multisystem autoimmune disorder that is characterized by prevalent hypertension, renal injury, and cardiovascular disease. Numerous studies have repo...
A highly sensitive printed humidity sensor based on a functionalized MWCNT/HEC composite for flexible electronics application

A novel functionalized multi-walled carbon nanotube (FMWCNT)/hydroxyethyl cellulose (HEC) composite-based humidity sensor was successfully developed for humidity monitoring applications. FMWCNTs were synthesized by covalently functionalizing multi-walled carbon nanotubes (MWCNTs) in a mixture of sulfuric and nitric acid to enhance their hydrophilicity. The FMWCNTs were characterized using transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy and dispersion analysis to verify the presence of functional hydroxyl and carboxyl groups. A FMWCNT/HEC (1 : 6 w/w) composite ink was formulated using the solution blending technique with 2.5 wt% FMWCNTs. A multi-layered humidity sensor was fabricated using additive print manufacturing processes on a flexible polyethylene terephthalate (PET) substrate. Screen printing and gravure printing processes were used to deposit the bottom silver (Ag) electrode and FWMCNT/HEC sensing layers, respectively. The capability of the fabricated humidity sensor was investigated by measuring its resistive response towards relative humidity (RH) varying from 20% RH to 80% RH. As the RH was increased from 20% RH to 80% RH in steps of 10% RH at 25 °C, it was observed that the resistance of the printed sensor increased linearly. The printed sensor demonstrated resistance changes as high as ≈290% at 80% RH, when compared to its base resistance at 20% RH. A sensitivity and a response time of 0.048/%RH and ≈20 s were obtained for the printed sensor, respectively. The results thus demonstrated the feasibility of employing additive print manufacturing processes to develop a highly sensitive sensor for humidity monitoring applications.
Photolytic Aging of Secondary Organic Aerosol: Evidence for a Substantial Photo-Recalcitrant Fraction

Photolytic aging has been proposed as a major mass loss mechanism for atmospheric secondary organic aerosol (SOA). However, estimated mass loss rates vary by orders of magnitude, and their impacts on modeled SOA loadings and properties are highly uncertain. In this study, photolysis rates and composition changes of α-pinene SOA are analyzed in situ over multiple days in an environmental chamber. After an initial exponential decay (τ ∼ 22 h), the mass loss rate slows dramatically, with more than ∼70-90% of the SOA particulate mass undergoing an essentially negligible photolytic degradation. Scaled to ambient conditions, SOA undergoes rapid photolysis over only its first day in the atmosphere; beyond this, the remaining SOA is photo-recalcitrant, and photolysis ceases to be a major sink compared to wet deposition time scales. Thus, extrapolation of the initial photolysis loss rate to the entire aerosol mass may significantly overestimate the role of photolysis in the removal of atmospheric SOA.
Computational investigation of twisted fiber pullout from ultra-high performance concrete

Abstract A well-calibrated and experimentally validated computational model is used to seek deep insight into how a twisted fiber pullout from ultra-high-performance concrete. The model explicitly accounts for interfacial frictional behavior and captures the inelastic response exhibited by the fibers and surrounding matrix during pullout. The simulation model is used to investigate the effects of fiber cross-section geometry, twist pitch, and inclination angle on fiber pullout response. The computational results quantify the effects of friction bonding and mechanical untwisting on the pseudo-plastic, slip-hardening pullout response of a steel fiber. It is shown that the maximum pullout force and energy dissipation capacity increase with decreasing twist pitch, but this can also lead to early fiber breakage or matrix damage. The simulations show that as the angle of fiber inclination increases, matrix damage increases, especially at the exit point, which adversely influences the fiber's ability to transmit load and dissipate energy during pullout.
Lipids in South Asians: Epidemiology and Management

This review focuses on lipoprotein abnormalities in South Asians (SA) and addresses risk stratification and management strategies to lower atherosclerotic cardiovascular disease (ASCVD) in this high-risk population. South Asians (SAs) are the fastest growing ethnic group in the United States (U.S) and have an increased risk of premature coronary artery disease (CAD). While the etiology may be multifactorial, lipoprotein abnormalities play a key role. SAs have lower low-density lipoprotein cholesterol (LDL-C) compared with Whites and at any given LDL-C level, SA ethnicity poses a higher risk of myocardial infarction (MI) and coronary artery disease (CAD) compared with other non-Asian groups. SAs have lower high-density lipoprotein cholesterol (HDL-C) with smaller particle sizes of HDL-C compared with Whites. SAs also have higher triglycerides than Whites which is strongly related to the high prevalence of metabolic syndrome in SAs. Lipoprotein a (Lp(a)) levels are also higher in SAs compared with many other ethnic groups. This unique lipoprotein profile plays a vital role in the elevated ASCVD risk in SAs. Studies evaluating dietary patterns of SAs in the U.S show high consumption of carbohydrates and saturated fats. SAs have a high-risk lipoprotein profile compared with other ethnicities. Lipid abnormalities play a central role in the pathogenesis of CAD in SAs. More studies are needed to understand the true impact of the various lipoproteins and their contribution to increasing ASCVD in SAs. Aggressive lowering of LDL-C in high-risk groups using medications, such as statins, and lifestyle modification including dietary changes is essential in overall CAD risk reduction.
Reirradiation for Recurrent Scalp Angiosarcoma: Dosimetric Advantage of PBT over VMAT and EBT.

Abstract Purpose: Reirradiation in the scalp area can be challenging given the proximity to organs at risk (OARs), such as the eye and brain. Our aim is to evaluate the dosimetric differences of vo...
Observing relaxation in device quality InGaN templates by TEM techniques

Device quality InGaN templates are synthesized using the semibulk (SB) approach. The approach maintains the film's 2D growth and avoids the formation of indium-metal inclusions. The strain relaxation processes of the grown InxGa1−xN templates are accompanied by variations in the indium content (x) and lattice parameters (a and c) across the InGaN template's thickness as the residual strain is continuously decreasing. This strain and lattice parameters' variation creates difficulties in applying standard x-ray Diffraction (XRD) and Reciprocal Space mapping (RSM) techniques to estimate the residual strain and the degree of the elastic strain relaxation. We used high-resolution High-angle annular dark-field scanning transmission electron microscopy and Energy-dispersive x-ray spectroscopy (EDS) to monitor the variations of the indium content, lattice parameters, and strain relaxation across the growing InxGa1−xN templates. We show that strain relaxation takes place by V-pit defect formation. Some of these V-pits are refilled by the GaN interlayers in the InxGa1−xN SB templates, while others propagate to the template surface. We present an alternative approach combining photoluminescence (PL) and EDS for estimating the degree of strain relaxation in these InxGa1−xN templates. The values obtained for the degree of relaxation estimated from TEM studies and PL measurements are within reasonable agreement in this study. Device quality InxGa1−xN templates with x ∼ 0.08, with a degree of relaxation higher than 70%, are achieved.
SLEAP: Multi-animal pose tracking

The desire to understand how the brain generates and patterns behavior has driven rapid methodological innovation to quantify and model natural animal behavior. This has led to important advances in deep learning-based markerless pose estimation that have been enabled in part by the success of deep learning for computer vision applications. Here we present SLEAP (Social LEAP Estimates Animal Poses), a framework for multi-animal pose tracking via deep learning. This system is capable of simultaneously tracking any number of animals during social interactions and across a variety of experimental conditions. SLEAP implements several complementary approaches for dealing with the problems inherent in moving from single-to multi-animal pose tracking, including configurable neural network architectures, inference techniques, and tracking algorithms, enabling easy specialization and tuning for particular experimental conditions or performance requirements. We report results on multiple datasets of socially interacting animals (flies, bees, and mice) and describe how dataset-specific properties can be leveraged to determine the best configuration of SLEAP models. Using a high accuracy model (<2.8 px error on 95% of points), we were able to track two animals from full size 1024 x 1024 pixel frames at up to 320 FPS. The SLEAP framework comes with a sophisticated graphical user interface, multi-platform support, Colab-based GPU-free training and inference, and complete tutorials available, in addition to the datasets, at sleap.ai.
A Sensorless Coil Detection Scheme based on Dead-Time Effect in Dynamic Wireless Power Transfer Systems

The detection of electric vehicles in dynamic wireless power transfer (DWPT) systems is important to reduce the standby losses and comply with the electromagnetic-field emission guidelines recommended by the International Commission for Non-Ionizing Radiation Protection. This paper discusses a novel sensorless coil detection scheme, which exploits the phenomenon of voltage-polarity reversal/notches caused by the dead-time effect in the full-bridge inverter. The variations in the system impedance and dead-time effects are collectively exploited to detect the receiver coil in the DWPT system. The proposed coil detection scheme is accomplished at low excitation voltage, which reduces the inverter standby losses. The theoretical analysis of the notch occurrence and open-loop simulation results are presented using a DWPT model developed in the piecewise linear electrical circuit simulation software.
The magic of the personal touch: Field experimental evidence on money appreciation as gifts

This paper makes use of two field experiments to explore individual effort responses to gifts. We extend the literature by looking at nonfinancial gifts and gifts that combine financial and nonfinancial elements with or without adding a “personal touch.” We find that non-pecuniary gifts that signal worker appreciation induce reciprocity. Most importantly, we find that there are interaction effects between money and appreciation. While money and appreciation are individually effective, they only work well together when they are combined with a personal touch. This points to the importance of interpersonal elements in gift giving and has important implications for how to effectively elicit worker effort.
Wide-area fever screening using advanced digital imaging

Wide-area temperature monitoring and fever screening to mitigate COVID-19 using a long-wave infrared digital pixel focal plane array camera scanning system and real-time temperature estimation processing is presented. The s ystem enables multi-pose temperature readings of more than 20 people simultaneously over a 90° horizontal x 30° vertical field-of-regard at a 1 Hz update rate and +/- 0.6°F accuracy. The system has been operational in the MIT LL lobby since April 2020.