Ionic Hydrogel-Based Moisture Electric Generators for Underwater Electronics.

Ubiquitous moisture is of particular interest for sustainable power generation and self-powered electronics. However, current moisture electric generators (MEGs) can only harvest moisture energy in the air, which tremendously limits the energy harvesting efficiency and practical application scenarios. Herein, the operationality of MEG from air to underwater environment, through a sandwiched engineered-hydrogel device with an additional waterproof breathable membrane layer allowing water vapor exchange while preventing liquid water penetration, is expanded.

Decoding long non‑coding RNAs: Friends and foes in cancer development (Review).

Cancer remains a formidable adversary, challenging medical advancements with its dismal prognosis, low cure rates and high mortality rates. Within this intricate landscape, long non‑coding RNAs (lncRNAs) emerge as pivotal players, orchestrating proliferation and migration of cancer cells. Harnessing the potential of lncRNAs as therapeutic targets and prognostic markers holds immense promise.

Dimensionality Control of 1D Coupling Reaction for the Facile Preparation of Porous Carbon Nanofibers.

Porous carbon nanofibers with unique hierarchical structures have great potential in many fields, including heterogeneous catalysis, optoelectronics, and sensing. However, several preparation issues, such as additional templates, complicated processes, and harsh conditions, seriously hamper their widespread use. Here, we control the Sonogashira coupling reaction of linear building monomers─1,4-dibromaphthalene and 1,4-ethylbenzene─at the molecular level.

Risk prediction for postpartum depression based on random forest.

Objectives: To explore the application of random forest algorithm in screening the risk factors and predictive values for postpartum depression.

Methods: We recruited the participants from a tertiary hospital between June 2017 and June 2018 in Changsha City, and followed up from pregnancy up to 4-6 weeks postpartum.Demographic economics, psychosocial, biological, obstetric, and other factors were assessed at first trimesters with self-designed obstetric information questionnaire and the Chinese version of Edinburgh Postnatal Depression Scale (EPDS).

Effectiveness of peer support intervention on perinatal depression: A systematic review and meta-analysis.

Background: It has been suggested that peer support intervention may offer an alternative approach to prevent or treat perinatal depression, but little is known about its effectiveness, economics, and satisfaction in the prenatal and postpartum populations. This review summarizes available evidence on the effectiveness, economics, and satisfaction of peer support intervention on perinatal depression.

Methods: Multiple electronic databases were searched in five English databases (MEDLINE, Embase, Cochrane Library, Psyc INFO, and CINAHL) and three Chinese databases (Wang Fang, China National Knowledge Infrastructure, and Chinese Biomedical Literature Database) from inception to April 2019.

Copper-Catalyzed Deaminative Difluoromethylation.

The difluoromethyl group (CF H) is considered to be a lipophilic and metabolically stable bioisostere of an amino (NH ) group. Therefore, methods that can rapidly convert an NH group into a CF H group would be of great value to medicinal chemistry. We report herein an efficient Cu-catalyzed approach for the conversion of alkyl pyridinium salts, which can be readily synthesized from the corresponding alkyl amines, to their alkyl difluoromethane analogues.

Copper-Catalyzed, Chloroamide-Directed Benzylic C-H Difluoromethylation.

We report herein the first catalytic strategy to harness amidyl radicals derived from -chloroamides for C-C bond formation, allowing for the discovery of the first catalytic benzylic C-H difluoromethylation. Under copper-catalyzed conditions, a wide variety of -chlorocarboxamides and -chlorocarbamates direct selective benzylic C-H difluoromethylation with a nucleophilic difluoromethyl source at room temperature. This scalable protocol exhibits a broad substrate scope and functional group tolerance, enabling late-stage difluoromethylation of bioactive molecules.

The short- and long-term effectiveness of mother-infant psychotherapy on postpartum depression: A systematic review and meta-analysis.

Background: It has been suggested that mother-infant psychotherapy may offer an alternative approach to treating postpartum depression, but little is known about its effectiveness. This review presents a summarized effectiveness of mother-infant psychotherapy on postpartum depression.

Methods: Multiple electronic databases were searched including Pubmed, Cochrane Library, EMBase, MEDLINE, et al.

Constructing "breathing" dynamic skeletons with extra π-conjugated adsorption sites for iodine capture.

Radioiodine (I and I) emission from the nuclear waste stream has aroused enormous apprehension because of its quick diffusion and radiological contamination. Conventional porous adsorbents such as zeolites and carbon with rigid skeletons and constant pore volumes reveal a limited performance for reliable storage. Here, a series of soft porous aromatic frameworks (PAFs) with additional π-conjugated fragments is disclosed to serve as physicochemical stable media.

Solvent-controlled plasmon-assisted surface catalysis reaction of 4-aminothiophenol dimerizing to p,p'-dimercaptoazobenzene on Ag nanoparticles.

A large number of literatures have investigated the selective photocatalytic reaction of 4-aminothiophenol (PATP) to p,p'-dimercaptoazobenzene (DMAB). Most of them mainly study the contribution of substrate, excitation wavelength, exposure time, pH and added cations to plasmon-assisted surface catalytic reactions. However, we mainly study focuses on the effects of solvents on the dimerization of PATP to DMAB under the action of Ag nanoparticles (NPs).

Microplastics in sediments of the Changjiang Estuary, China.

Microplastics are plastics that measure less than 5 mm in diameter. They enter the marine environment as primary sources directly from industrial uses, as well as secondary sources resulting from the degradation of large plastic debris. To improve the knowledge of microplastic pollution in China, we investigated samples from 53 estuarine sediment locations collected with a box corer within the Changjiang Estuary.

Microplastics and mesoplastics in fish from coastal and fresh waters of China.

Plastic pollution is a growing global concern. In the present study, we investigated plastic pollution in 21 species of sea fish and 6 species of freshwater fish from China. All of the species were found to ingest micro- or mesoplastics.

Microplastics in Taihu Lake, China.

In comparison with marine environments, the occurrence of microplastics in freshwater environments is less understood. In the present study, we investigated microplastic pollution levels during 2015 in Taihu Lake, the third largest Chinese lake located in one of the most developed areas of China. The abundance of microplastics reached 0.

Microplastics in mussels along the coastal waters of China.

Microplastic has been confirmed as an emerging pollutant in marine environments. One of the primary environmental risks of microplastics is their bioavailability for aquatic organisms. Bivalves are of particular interest because their extensive filter-feeding activity exposes them directly to microplastics present in the water column.

Microplastic Pollution in Table Salts from China.

Microplastics have been found in seas all over the world. We hypothesize that sea salts might contain microplastics, because they are directly supplied by seawater. To test our hypothesis, we collected 15 brands of sea salts, lake salts, and rock/well salts from supermarkets throughout China.

Microplastics in commercial bivalves from China.

We investigated microplastic pollution in 9 commercial bivalves from a fishery market in China. Multiple types of microplastics, including fibers, fragments and pellets, occurred in the tissue of all bivalves. The number of total microplastics varied from 2.