2,693 papers found

Resonant inelastic x-ray scattering (RIXS) is a well-established tool for studying electronic, nuclear, and collective dynamics of excited atoms, molecules, and solids. An extension of this powerful method to a time-resolved probe technique at x-ray free electron lasers (XFELs) to ultimately unravel ultrafast chemical…

Recently it has been proposed a model for fibrils of human insulin in which the fibril growth proceeds via stacking LVEALYL (fragment 11-17 from chain B of insulin) into pairs of tightly interdigitated [Formula: see text]-sheets. The experiments have also shown that LVEALYL has high propensity to self-assembly and bind…

BACKGROUND: Much biomedical research is now undertaken in China. METHODS: Five large biomedical databases originating from China (CBM, CMCC, CNKI, VIP and WANFANG) are described and their utility and accessibility investigated. RESULTS: These databases index 2500 journals largely not familiar to MEDLINE users. Free a…

A wealth of molecular interaction data is available in the literature, ranging from large-scale datasets to a single interaction confirmed by several different techniques. These data are all too often reported either as free text or in tables of variable format, and are often missing key pieces of information essential…

3D point cloud understanding, e.g. out-of-distribution detection and recognition, remains a challenge, particularly in applications where safe and robust perception is critical. While recent 3D VLMs enable direct recognition via text prompts, their predictions are often unstable when the test distribution shifts or whe…

INTRODUCTION: Functional connectivity (FC) is the correlation between brain regions' activities, studied through neuroimaging techniques like fMRI. It helps researchers understand brain function, organization, and dysfunction. Hyperthyroidism, characterized by high serum levels of free thyroxin and suppressed thyroid s…

The diagnosis of atopic dermatitis (AD) remains primarily a clinical diagnosis, in which several clinical signs and symptoms including pruritus, the presence and location of skin lesions, and a personal or family history of atopic conditions are used to facilitate a diagnosis. In recent decades, several well-establishe…

This article aims to determine an association between vasculitis and cerebrovascular accidents (CVA) and the ideal management plan to decrease the chances of CVA in vasculitis patients. We also attempt to find a preferred treatment regimen that decreases the complications of CVAs in vasculitis patients, there…

. Family health history (FHH) can be used to identify individuals at elevated risk for familial cancers. Risk criteria for common cancers rely on age of onset, which is documented inconsistently as structured and unstructured data in electronic health records (EHRs).. To investigate a natural language processing (NLP)…

OBJECTIVE: The purpose of this paper was to review the literature regarding the mechanisms leading to degeneration in intervertebral disks and to discuss contributing mechanical and biological factors. METHODS: The inclusion criteria for the literature review were research studies conducted in the last 3 decades with…

RATIONALE: The development of IVF techniques has diminished the importance of tubal infertility but recent discoveries shed a new light on reproductive tubal surgery prior to any IVF cycle. OBJECTIVE: To adapt current state of the art recommendations concerning tubal factor infertility to actual possibilities in Roman…

The impact of preoperative scintigraphy on the management of patients with primary hyperparathyroidism has been largely documented for more than two decades. More recently, preoperative scintigraphy has also been used to select patients for intraoperative detection of hyperfunctioning parathyroid glands thanks to a gam…

AIM: Radiation-induced fibrosis is a recognised consequence of radiotherapy, especially after multiple and prolonged dosing regimens. There is no definitive treatment for late-stage radiation-induced fibrosis, although the use of autologous fat transfer has shown promise. However, the exact mechanisms by which this imp…

A linear accelerator with the flattening-filter removed generates a non-uniform dose profile beam. We aimed to analyse and compare plan quality and treatment time between flattened beam (FB) and flattening-filter-free (FFF) beam to assess the efficacy of FFF beam for stereotactic body radiation therapy (SBRT). The sear…

The lacrimal sac (LS) is a dilated structure that lies in the lacrimal fossa, and the nasolacrimal duct (NLD) is the continuation of LS from its neck up to the inferior meatus of the nose. A study of 50 specimens of formalin-fixed adult cadavers of both sexes of Indian origin was conducted. The morphological features l…

OBJECTIVES: To determine the effect of glutathione S-transferases M1 and T1 polymorphisms on the risk of senile cataract among Egyptians. BACKGROUND: The glutathione S-transferases (GSTs) are polymorphic enzymes that are important in the protection against oxidative damage. METHODS: Using a multiplex polymerase chain…

OBJECTIVES: The aim of this prospective clinical study is to evaluate our 20-year experience with surgical treatment of pulmonary metastases in germ-cell testicular cancer and discuss the optimal therapeutical approach. BACKGROUND: Authors presents 63 patients who were surgically treated in the period from 1988 to 200…

BACKGROUND: Benign schwannomas, also referred to as neurilemomas, neurinomas, and perineural fibroblastomas, are encapsulated nerve sheath tumors. Primary schwannomas of the liver are extremely rare. We present a case of liver schwannoma, incidentally found in a patient with breast cancer. CASE: A 66-year-old female c…

INTRODUCTION: Nutritional Risk Screening-2002 (NRS-2002) has been recently used to evaluate the nutritional status of patients according to the recommendation of ESPEN. In this prospective study, we aimed to find the effectiveness of NRS-2002 on preoperative patients who were candidates for elective procedure at a gene…