One of the features of Baxter's Q-operators for many closed spin chain models is that all transfer matrices arise as products of two Q-operators with shifts in the spectral parameter. In the representation-theoretical approach to Q-operators, underlying this is a factorization formula for L-operators (solutions of the Yang-Baxter equation associated to particular infinite-dimensional representations). To extend such a formalism to open spin chains, one needs a factorization identity for solutions of the reflection equation (boundary Yang-Baxter equation) associated to these representations.
View Article and Find Full Text PDFThis paper presents a simulation modeling study that examines the potential benefit of arming public school staff members with concealed carry weapons (CCWs) in combination with school resource officers (SROs) during active shooter events. By simulating real or hypothetical situations and altering various parameters, simulation modeling allows researchers to explore the potential factors that may influence the outcome of such situations. This study will analyze literature on active shootings to identify key characteristics that may impact the outcome of an event and will use an actual school active shooter event as a basis for developing a simulation model.
View Article and Find Full Text PDFThe microstructure, Vickers microhardness, and electrochemical properties of an additive manufactured titanium alloy, Ti-5553 (Ti-5Al-5Mo-5V-3Cr wt %), are reported on. The alloy specimens were fabricated by selective laser melt processing. The surface morphology and electrochemical properties of the as-processed and surface-pretreated (abraded and polished) Ti-5553 specimens were investigated.
View Article and Find Full Text PDFIndividuals seeking certification as a board certified behavior analyst (BCBA) by the Behavior Analyst Certification Board (BACB) must meet certain eligibility requirements. In addition to passing the BCBA examination, such requirements include completion of a master's degree, behavior-analytic coursework, and supervised practical fieldwork. In accruing fieldwork hours, trainees must be provided with the opportunity to complete unrestricted activities.
View Article and Find Full Text PDF[This corrects the article DOI: 10.1016/j.euros.
View Article and Find Full Text PDFHeparan sulphate (HS) can act as a co-receptor on the cell surface and alterations in this process underpin many pathological conditions. We have previously described the usefulness of mimics of HS (glycomimetics) in protection against β-glycerophosphate-induced vascular calcification and in the restoration of the functional capacity of diabetic endothelial colony-forming cells in vitro. This study aims to investigate whether our novel glycomimetic compounds can attenuate glycated low-density lipoprotein (g-LDL)-induced calcification by inhibiting RAGE signalling within the context of critical limb ischemia (CLI).
View Article and Find Full Text PDFBackground: The survival for many children with relapsed/refractory cancers remains poor despite advances in therapies. Arginine metabolism plays a key role in the pathophysiology of a number of pediatric cancers. We report the first in child study of a recombinant human arginase, BCT-100, in children with relapsed/refractory hematological, solid or CNS cancers.
View Article and Find Full Text PDFPurpose: Outcomes for children with relapsed and refractory high-risk neuroblastoma (RR-HRNB) remain dismal. The BEACON Neuroblastoma trial (EudraCT 2012-000072-42) evaluated three backbone chemotherapy regimens and the addition of the antiangiogenic agent bevacizumab (B).
Materials And Methods: Patients age 1-21 years with RR-HRNB with adequate organ function and performance status were randomly assigned in a 3 × 2 factorial design to temozolomide (T), irinotecan-temozolomide (IT), or topotecan-temozolomide (TTo) with or without B.
Proc Natl Acad Sci U S A
October 2023
APOBEC mutational signatures SBS2 and SBS13 are common in many human cancer types. However, there is an incomplete understanding of its stimulus, when it occurs in the progression from normal to cancer cell and the APOBEC enzymes responsible. Here we whole-genome sequenced 342 microdissected normal epithelial crypts from the small intestines of 39 individuals and found that SBS2/SBS13 mutations were present in 17% of crypts, more frequent than most other normal tissues.
View Article and Find Full Text PDFSpinocerebellar ataxia type 3 (SCA3) is a neurodegenerative disorder showing progressive neuronal loss in several brain areas and a broad spectrum of motor and non-motor symptoms, including ataxia and altered sleep. While sleep disturbances are known to play pathophysiologic roles in other neurodegenerative disorders, their impact on SCA3 is unknown. Using spectrographic measurements, we sought to quantitatively characterize sleep electroencephalography (EEG) in SCA3 transgenic mice with confirmed disease phenotype.
View Article and Find Full Text PDFSoc Psychiatry Psychiatr Epidemiol
January 2023
Using a four-wave longitudinal design, three competing hypotheses (i.e., social selection, social causation, and reciprocal causation) were tested pertaining to the relation between social functioning and several indices of behavioral health [i.
View Article and Find Full Text PDFMycobacteria are a unique group of microorganisms. They are characterised by exceptional adaptability and durability. They are capable of colonisation and survival even in very unfavourable conditions.
View Article and Find Full Text PDFThe current article presents the findings from a systematic review of the available reliability and validity evidence supporting the use of criterion-referenced assessments based on the applied behavior analysis framework. We identified 46 studies that reported reliability and/or validity evidence for six assessments, 37 of which presented reliability evidence and 43 presented validity evidence. Additionally, we extracted and summarized information related to participant characteristics (e.
View Article and Find Full Text PDFThe physiological process of biomineralization is complex and deviation from it leads to a variety of diseases. Progress in the past 10 years has enhanced understanding of the genetic, molecular and cellular pathophysiology underlying these disorders; sometimes, this knowledge has both facilitated restoration of health and clarified the very nature of biomineralization as it occurs in humans. In this Review, we consider the principal regulators of mineralization and crystallization, and how dysregulation of these processes can lead to human disease.
View Article and Find Full Text PDFFriends with benefits relationships (FWBRs) are a common form of relationship for college students that combine aspects of friendship with sex, yet little is known about commitment in these relationships and whether they are more similar to casual relationships or to romantic relationships. We investigated associations between investment, alternatives, and satisfaction, with commitment (per the Investment Model) in college students' FWBRs and examined how associations between variables differ by participant and partner gender. Primary analyses were conducted with male-female FWBRs ( = 252).
View Article and Find Full Text PDFA total of 152 aerosol and spider web samples were collected: 96 spider's webs in karst areas in 4 European countries (Czech Republic, France, Italy, and Slovakia), specifically from the surface environment ( = 44), photic zones of caves ( = 26), and inside (aphotic zones) of caves ( = 26), 56 Particulate Matter (PM) samples from the Cave System (speleotherapy facility; = 21) and from aerosol collected from the nearby city of ( = 35) in the Czech Republic. Nontuberculous mycobacteria (NTM) were isolated from 13 (13.5%) spider's webs: 5 isolates of saprophytic NTM (, , , and complex) and 6 isolates of potentially pathogenic NTM ( ssp.
View Article and Find Full Text PDFScholars suggest traditional feminine gender roles (TFGRs) influence alcohol use among U.S. Latinas, but relevant literature is limited.
View Article and Find Full Text PDFBackground: Chloride intracellular channel 4 (CLIC4) is a multifunctional metamorphic protein for which a growing body of evidence supports a major role in the brain's molecular and behavioral responses to ethanol (EtOH). Although key to understanding the functional biology underlying this role, little is known about the cellular and subcellular expression patterns of CLIC4 in brain and how they are affected by EtOH.
Methods: We used qRT-PCR to assess Clic4 mRNA expression in the medial prefrontal cortex (mPFC) of C57BL/6J mice in the absence and presence of acute EtOH exposure.
group (MFG) members are able to cause clinical mycobacteriosis in fish and other animals including humans. , , , , , , , , and were isolated from fish with mycobacteriosis. In other animals only three MFG species have been isolated: from camels' milk, from cutaneous infections often described as "farcy", and from different domestic and wild mammals' species.
View Article and Find Full Text PDFFor epidemiology studies, a decontamination method using a solution containing 4.0% NaOH and 0.5% tetradecyltrimethylammonium bromide (TDAB) represents a relatively simple and universal procedure for processing heavily microbially contaminated matrices together with increase of mycobacteria yield and elimination of gross contamination.
View Article and Find Full Text PDFElevated serum concentrations of leucine-rich α-2-glycoprotein (LRG1) have been reported in patients with inflammatory, autoimmune, and cardiovascular diseases. This study aims to investigate the role of LRG1 in endothelial activation. LRG1 in endothelial cells (ECs) of arteries and serum of patients with critical limb ischemia (CLI) was assessed by immunohistochemistry and ELISA, respectively.
View Article and Find Full Text PDFChloride intracellular channels (CLICs) are a unique family of evolutionarily conserved metamorphic proteins, switching between stable conformations based on redox conditions. CLICs have been implicated in a wide variety biological processes including ion channel activity, apoptosis, membrane trafficking, and enzymatic oxidoreductase activity. Understanding the molecular mechanisms by which CLICs engage in these activities is an area of active research.
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