5,618,136 results match your criteria: "USA; University of Cambridge[Affiliation]"

Using simulated data with duplicate observational data points, this research aims to highlight the notable efficiency of repeated measures analysis of variance (ANOVA) compared to one-way ANOVA as a more powerful statistical model. One of the principal advantages of repeated measures ANOVA is its design, in which each subject acts as their own control. This methodology allows for the statistical mitigation of individual differences among subjects, thereby reducing extraneous variability (noise) that can obscure the effects of the experimental conditions under investigation.

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Multiple physiological changes occur during the menstrual cycle; many are attributed to fluctuations in estrogen, luteinizing hormone, follicle-stimulating hormone, and progesterone. These hormones differentially affect the menstrual cycle's follicular, ovulation, and luteal phases. Skin is one of the organs affected by changes in a woman's menstrual cycle.

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We report a rare case of a 45-year-old Asian male patient with concurrent multiple myeloma (MM), immune thrombocytopenic purpura (ITP), and thalassemia trait, presenting with severe thrombocytopenia, back pain, and bleeding manifestations. The diagnosis was established through a combination of laboratory findings, imaging, and bone marrow biopsy, revealing 90% plasma cell involvement and KRAS/BRCA2 mutations. Management focused on controlling ITP with corticosteroids, rituximab, and platelet transfusions while addressing immunosuppression risks.

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Shoulder arthroscopic and arthroplastic surgeries are associated with significant postoperative pain, which can delay recovery and increase opioid consumption. Interscalene blocks (ISBs) are a commonly used method to manage this pain, either as single-shot injections or continuous catheter infusions (CISBs). This review synthesizes findings from studies conducted in the past five years, comparing the efficacy, complications, and outcomes of single-shot ISBs versus CISBs for postoperative pain management in shoulder surgeries.

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Introduction: Reactivation of herpes simplex virus (HSV) and varicella zoster virus (VZV) is a potential complication following allogeneic stem cell transplantation (alloSCT). Since different doses and durations of acyclovir prophylaxis may be utilized across transplant centers, this study aimed to evaluate the effectiveness of a lower dose of acyclovir in preventing HSV and VZV reactivation in alloSCT recipients within our institution.

Methods: A retrospective chart review was conducted for patients who underwent alloSCT between April 2016 and May 2023.

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Chronic lymphocytic leukemia (CLL) can rarely transform into Waldenström macroglobulinemia (WM), posing diagnostic and therapeutic challenges. The diagnosis of WM requires bone marrow infiltration by lymphoplasmacytic cells and the presence of IgM gammopathy. Immunophenotypic markers include FMC7+, CD19+, CD20+, and CD138+.

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This report describes a rare case of relapsed multiple myeloma in the gastrointestinal tract with aberrant CD3 expression. Upon admission for acute renal failure, the patient had abnormal computed tomography scan findings of the abdomen and pelvis. Subsequent colonoscopy found numerous polyps and masses.

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Cochlear Amplification in the Short-Wave Region by Outer Hair Cells changing Organ-of-Corti area to Amplify the Fluid Traveling Wave.

Hear Res

December 2022

Eaton-Peabody Lab, Mass. Eye and Ear, 243 Charles St., Boston MA 02114, USA.

Many details of the operation of the mammalian cochlea are known, but how they all work together to produce cochlear amplification is not understood. Outer-hair-cell (OHC) motility produces two kinds of amplification: non-propagating amplification (NPA) that is from local OHCs, and traveling-wave amplification (TWA) that increases basilar-membrane (BM) motion. Proposed here are a series of hypotheses that provide a new explanation, the "OoC-area-pump", for TWA: (1) In the short-wave region OHC vibrations cause cyclic longitudinal motion of fluid in the organ of Corti (OoC) and peri-Deiters-cell tissue, (2) the longitudinal motion changes the local OoC area, which (3) by reticular-lamina (RL) movement drives the fluid in scala media in a way that amplifies the fluid-pressure traveling wave.

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Catalytic alkene isomerization is a powerful synthetic strategy for preparing valuable internal alkenes from simple feedstocks. The utility of olefin isomerization hinges on the ability to control both positional and stereoisomerism to access a single product among numerous potential isomers. Within base-metal catalysis, relatively little is known about how to modulate reactivity and selectivity with group 6 metal-catalyzed isomerization.

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This manuscript describes a strategy to readily access diverse aryl and homoaryl alanine-containing pharmaceutically relevant macrocyclic peptides. A two-step sequence involving the late-stage installation of the pyridinium functionality on macrocyclic peptides followed by reductive couplings was implemented. These transformations are amenable to microscale high-throughput experimentation (HTE) and enable rapid access to aryl alanine-containing macrocyclic peptides that would otherwise be inaccessible solid-phase peptide synthesis using commercially available amino acids.

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In the title compound, CHFO, a central -hybridized carbon atom is decorated with three hepta-fluoro-2-meth-yloxy(cyclo-pent-1-ene) arms and a methyl group. The primary packing is determined by C-F⋯F-C inter-actions, forming [001] chains, which are consolidated weaker C-F⋯F-C and C-H⋯F-C contacts. A Hirshfeld surface analysis was conducted to aid in the visualization of these various influences on the packing: this revealed that the largest contribution to the surface contacts arises from F⋯F inter-actions (53.

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Binary solvent participation in crystals of a multi-aromatic 1,2,3-triazole.

Acta Crystallogr E Crystallogr Commun

January 2025

Oligometrics, Inc., 2510 47th Street, Suite 208, Boulder, CO, 80301, USA.

The X-ray crystal structure of a multi-aromatic substituted 1,2,3-triazole is presented, which shows an extensive three-dimensional hydrogen-bonding network involving two water mol-ecules and two aceto-nitrile mol-ecules. The structure of 4-{[(4-{[1-({[(3,4-di-meth-oxy-phen-yl)meth-yl](3-acetamido-phen-yl)carbamo-yl}meth-yl)-1-1,2,3-triazol-4-yl]meth-oxy}-3-meth-oxy-phen-yl)meth-yl]amino}-benzoic acid-aceto-nitrile-water (1/2/2), CHNO·2CHN·2HO, features amine-linked aromatic groups that have a variety functionality including a carb-oxy-lic acid, an acetamido group, and meth-oxy ethers. All -H groups, and seven out of ten heteroatoms with available lone-pair electrons, participate in hydrogen bonding, with the aid of dimer-bridging water mol-ecules and aceto-nitrile mol-ecules whose methyl groups form close contacts with oxygen atoms.

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Crystal structure and Hirshfeld surface analysis of -(4-nitro-phen-yl)-2-(piperidin-1-yl)acetamide (lidocaine analogue).

Acta Crystallogr E Crystallogr Commun

January 2025

Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco.

In the title mol-ecule, CHNO, the substituents on the phenyl ring are rotated slightly out of the mean plane of the ring but the piperidine moiety is nearly perpendicular to that plane. In the crystal, C-H⋯O hydrogen bonds form chains of mol-ecules extending along the -axis direction, which are linked by C=O⋯π(ring) inter-actions. A Hirshfeld surface analysis showed the majority of inter-molecular inter-actions to be H⋯H contacts while O⋯H/H⋯O contacts are the second most numerous.

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Cognitive impairment and dementia have long been recognized as growing public health threats. Studies have found that air pollution is a potential risk factor for dementia, but the literature remains inconclusive. This study aimed to evaluate the association between three major air pollutants (i.

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Background matching, an important form of camouflage, can be challenging for animals that range across heterogeneously colored habitats. To remain cryptic in such habitats, animals may employ color change, background choice, or generalist coloration, and the efficacy of these strategies may be influenced by an animal's mobility. We examined camouflage strategies in the praying mantis .

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ProxiMO: Proximal Multi-operator Networks for Quantitative Susceptibility Mapping.

Mach Learn Clin Neuroimaging (2024)

December 2024

Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.

Quantitative Susceptibility Mapping (QSM) is a technique that derives tissue magnetic susceptibility distributions from phase measurements obtained through Magnetic Resonance (MR) imaging. This involves solving an ill-posed dipole inversion problem, however, and thus time-consuming and cumbersome data acquisition from several distinct head orientations becomes necessary to obtain an accurate solution. Most recent (supervised) deep learning methods for single-phase QSM require training data obtained via multiple orientations.

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Liver tissue engineering offers potential in liver transplantation, while the development of hydrogels for scalable scaffolds incorporating natural components and effective functionalities is ongoing. Here, we propose a novel microfluidic 3D printing hydrogel derived from decellularized fish liver extracellular matrix for liver regeneration. By decellularizing fish liver and combining it with gelatin methacryloyl, the hydrogel scaffold retains essential endogenous growth factors such as collagen and glycosaminoglycans.

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Vertigo is a common symptom of various diseases that affects a large number of people worldwide. Current leading treatments for intractable peripheral vertigo are to intratympanically inject ototoxic drugs such as gentamicin to attenuate the semicircular canal function but inevitably cause hearing injury. Photodynamic therapy (PDT) is a noninvasive therapeutic approach by precisely targeting the diseased tissue.

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Objective: To evaluate the effects of age on semen and hormonal parameters following microsurgical varicocelectomy among patients with grade 3 varicocele, and to compare fertility outcomes between younger (<40 years) and older (≥40 years) men.

Methods: Retrospective cohort study of infertile patients with clinical left grade 3 varicocele who underwent microsurgical subinguinal varicocelectomy (MV). Patients meeting the inclusion criteria ( = 550) were divided into two groups based on their age at the time of MV: <40 ( = 441) and ≥40 years ( = 109).

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Objective: To better understand the clinical phenotype of Ménière's disease (MD), we examined family history, thyroid disorder, migraine, and associated disorders in complaints of people living with MD.

Method: We designed the study as a retrospective and examined data gathered from 912 participants with MD. Their data were originally collected by the Finnish Ménière Federation (FMF).

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We compared Ed Diener's (SWLS), which was designed as a purely cognitive measure of global life satisfaction, with the , which provides self-report measures of Panksepp's six primary emotions (excluding LUST), in two English-speaking samples: a main sample and a hold-out validation sample. Our data showed robust negative correlations between higher satisfaction with life and lower FEAR, lower SADNESS/Separation Distress, and positive associations (albeit less strong) between higher satisfaction with life and higher PLAY and SEEKING in both samples. The relationships between the SWLS and at least four of Panksepp's primary emotions suggest Diener's SWLS is not purely cognitive and includes a strong affective component.

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Background: Both the antibody-drug conjugate (ADC) enfortumab vedotin (EV) and programmed death-1 inhibitor pembrolizumab have been shown to provide survival benefits in patients previously treated with locally advanced or metastatic urothelial carcinoma (la/mUC). Cost-effectiveness is necessary to consider whether the increased efficacy of the two therapies will lead to higher prices for first-line treatment of previously untreated la/mUC.

Objectives: To guide the choice of EV plus pembrolizumab or chemotherapy for patients with previously untreated la/mUC.

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A Mattila-Sjölin theorem for simplices in low dimensions.

Math Ann

July 2024

Department of Mathematics, Virginia Tech, Blacksburg, VA 24061 USA.

In this paper we show that if a compact set , , has Hausdorff dimension greater than when or when , then the set of congruence class of simplices with vertices in has nonempty interior. By set of congruence class of simplices with vertices in we mean where . This result improves the previous best results in the sense that we now can obtain a Hausdorff dimension threshold which allow us to guarantee that the set of congruence class of triangles formed by triples of points of has nonempty interior when as well as extending to all simplices.

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