Jiamusi University

AMY-SA-XGBoost: A Machine Learning Model to Predict Amylase Specific Activity

Abstract Amylase is an important enzyme preparation, and its enzyme activity directly determines its catalytic efficiency in starch hydrolysis. However, current experimental methods for determining amylase specific activity are time-consuming and costly, and experimentally measur...

Towards a structure-aware multi-hop retrieval framework for large language model reasoning over complex oncology guidelines

Large language models (LLMs) augmented with clinical guidelines show promise in medical question answering, yet structural parsing and evidence retrieval over complex guidelines remain challenging. We propose SMART-RAG (Structure-aware Multi-hop Augmented Retrieval Technique for...

Tuning the long-range corrected functional for accurate excited-state spectroscopic, charge transport, and interfacial insights into D-π-D type hole transport materials

The development of small molecule hole transport materials (HTMs) with high flatness through reasonable molecular design to regulate the interfacial interaction and charge transport of perovskite solar cells (PSCs) has become a current research hotspot. This study used the high-p...

Flue Gas Torrefaction of Corn Stover-Densified Fuel: Impacts on Physicochemical Properties and Combustion Performance

Abstract Corn stover pellets were torrefied under a simulated flue gas atmosphere (220 °C–300 °C, 15–25 min) to evaluate physicochemical and combustion modifications. Analyses revealed that increasing torrefaction severity significantly reduced the volatile matter, hydrogen, and...

Guanidinium-Induced Intermolecular Hydrogen-Bonding Networks: An Effective Strategy for Achieving Superprotonic Conductivity in Molybdenum–Oxygen Clusters

Abstract As a class of inorganic clusters with precisely tunable structures, polyoxometalates (POMs) demonstrate great potential in the field of proton-conducting materials due to their inherent proton-transfer sites and functionalizable surface properties. In this study, utilizi...

The relationship between salt intake and hypertension in adolescents in an area of Northeast China

Abstract Background To study the relationship between salt intake and hypertension among adolescents in an area of Northeast China. Method According to the method of cluster random sampling, two high schools were selected from 18 high schools in a certain area of Northeast China,...

Cellular and In Vivo Fate of DNA Nanostructures.

DNA nanotechnology is a cutting-edge discipline that exploits the principle of complementary base pairing to direct the self-assembly of precisely defined nanostructures. This review systematically surveys the fundamental concepts, assembly strategies, and biomedical applications...

Diffuse bilateral differentiated high-grade thyroid carcinoma presenting as a giant clinical neck mass with iodine-avid pulmonary metastases: a case report and focused literature review

Differentiated high-grade thyroid carcinoma (DHGTC) is a follicular-cell-derived malignancy defined in the 2022 World Health Organization classification. It retains differentiated morphology but shows tumor necrosis and/or at least 5 mitoses per 2 mm². Longitudinal evidence on gi...

Preparation and in vitro characterization of luteolin-loaded liposome/GelMA composite microspheres and associated macrophage and osteogenic responses

Abstract Background The chronic inflammatory microenvironment of periodontitis impairs periodontal tissue repair. Biomaterials that combine local delivery with immunomodulatory and osteogenic functions may support periodontal regeneration. This in vitro study developed a luteolin...