Browse Articles

Graphene oxide and its derivatives films for sustained-release trace element zinc based on cation-π interaction

Target miRNA identification for the LPL gene in large yellow croaker (Larimichthys crocea)

Prediction of cold region dew volume based on an ECOA-BiTCN-BiLSTM hybrid model

CD4 expression controls epidermal stem cell balance

Abstract The balance of stem cell populations is essential for the maintenance, renewal, and repair of the mammalian epidermis. Here, we report that CD4, which is a typical marker of helper T cells, monocytes, macrophages, and dendritic cells, is also expressed on murine K5+ keratinocytes. Lineage tracing of CD4+ cells reveals that their epidermal progeny has self-renewal abilities and clonogenic potential. The progeny of CD4+ epidermal cells contributes to epidermal renewal and progressively colonizes the interfollicular epidermis and hair follicles with age, thereby developing to all epidermal lineages. Wound healing studies furthermore show that the progeny of CD4+ epidermal cells accumulates at wound sites. Finally, using CD4 knockout mice we demonstrate that CD4 expression is essential for maintaining fast-cycling epidermal stem cells during homeostasis and that CD4 loss mitigates the age-related decline in wound repair capacity. Collectively, our data support the conclusion that CD4 expression is required for long-term maintenance of the epidermal stem cell balance.

NOS2 as a prognostic biomarker for early-onset colorectal cancer based on public data and clinical validation analysis

Degradation of PCDD/Fs from incineration of waste at low temperatures for resource utilization of fly ash

Desiccation as a suitable alternative to cold-storage of phyllosphere samples for DNA-based microbial community analyses

Abstract The study of microbial communities of the plant phyllosphere in remote locations using DNA-based approaches is limited by the challenges associated with their preservation in the field and during transportation. Freezing is a common DNA preservation strategy, but it may be unsuitable for leaf samples, or inaccessible in some locations. Other methods such as desiccation, ethanol or commercial preservatives are potential alternative DNA preservation methods for ambient temperature storage. In this study, we assessed the efficacy of desiccation (with silica gel packs), and of three preservation solutions (95% ethanol, RNAlater, LifeGuard) for the preservation of epiphytic phyllosphere communities of Populus tremuloides and Picea glauca at ambient indoor temperature (21 °C) for up to three weeks. We assessed effects on DNA concentration and quality and used metabarcoding to detect changes in bacterial and fungal communities between treatments over time. A secondary study was conducted on leaves of Populus grandidentata to further test the ability of the desiccation treatment to resolve differences between sampling sites. Silica gel packs were identified as effective ambient temperature preservative of phyllosphere bacterial and fungal communities. There were some changes in the communities compared to immediate extraction due to this treatment, but these changes did not affect the ability to distinguish tree species and sampling locations. Overall, our study supports the use of silica gel pack short term preservation at ambient temperature for phyllosphere samples intended for DNA-based microbial community analyses.

Hybridization potential and genetic influence of parental varieties on fruit size and set rate in Gleditsia sinensis

Correction for Luo et al., Bioluminescence imaging of Smad signaling in living mice shows correlation with excitotoxic neurodegeneration

A universal method for the purification of C2H2 zinc finger arrays

Zinc fingers (ZFs) are compact, modular, sequence-specific polynucleotide-binding domains uniquely suited for use as DNA probes and for the targeted delivery of effector domains for purposes such as gene regulation and editing. Despite recent advances in both the design and application of ZF-containing proteins, there is still a lack of a general method for their expression and purification. Here we describe a simple method, involving two chromatographic steps, for the production of homogeneous, functional ZF proteins in high yield (one milligram per liter of bacterial culture), and we demonstrate the generality of this method by applying it to a diverse set of eight C2H2-type ZF proteins. By incorporating a surface-exposed terminal cysteine residue that enables site-specific conjugation with maleimide-activated fluorophores, we confirm the suitability of these probes for in situ labeling of specific DNA sequences in human cells.

Spatial-temporal characteristics and influence factors of high-quality development of animal husbandry industry in China

The animal husbandry industry stands as a pillar of the agricultural sector. According to the defining characteristics of high-quality development in animal husbandry, this paper establishes a comprehensive evaluative indicator system. This system evaluates the quality of development in the industry from 2010 to 2022, including five key dimensions: output efficiency, product safety, resource conservation, environmental friendliness, and the level of scientific and technological &management. Results indicate a positive overall trend in the high-quality development of China’s animal industry throughout this period. Provinces exhibiting the highest average levels of development are, in descending order, Jiangsu, Shanghai, Anhui, Beijing, Fujian, Yunnan, Chongqing, Gansu, Guangdong, and Guangxi. Among these five dimensions, the level of environmental friendliness and the level of scientific and technological &management are better developed, while the level of resource conservation, the level of product safety, and the level of output efficiency are poorly developed. Regional differences have demonstrated a slight narrowing trend; however, the effect of intra-regional differences on the overall differences has remained relatively stable. In contrast, the effect of inter-regional differences on overall differences has gradually reduced, while the effect of hypervariable density has steadily increased, becoming the most significant factor. High-quality development in China’s animal industry exhibits a strong path dependency, with advancements typically occurring incrementally between adjacent levels and an insignificant probability of leapfrogging. The level of high-quality development in a given region is significantly influenced by the development levels observed in neighbouring regions, illustrating a phenomenon akin to the adage that One who is near vermilion is stained red, one who is near ink is stained black. Factors such as urbanisation rates, levels of scientific and technological innovation, transport infrastructure, levels of agricultural financial development, and population density all contribute positively to the high-quality development of China’s animal industry. At the same time, a larger share of animal husbandry in both the overall industrial sector and the agricultural industry further contributes to this high-quality development; whereas, GDP per capita and fiscal support for agriculture do not appear to have a significant effect.

Status and associations of transition shock among nursing students during clinical practice: A cross-sectional study

Aim This study aimed to investigate the current state and influencing factors of transition shock among nursing students during clinical practice. Background Transition shock among nursing students can significantly impact their academic performance and well-being. Understanding the key factors contributing to this shock is crucial for developing effective support strategies and improving overall educational outcomes. Methods This cross-sectional study was conducted on October 8–28, 2022 at four tertiary Class A hospitals in Changsha, Hunan Province, located in south-central China. A convenience sample of 620 full-time nursing students was surveyed to collect demographic information and assess their transition shock levels using the transition shock scale. Data analysis included descriptive statistics, nonparametric tests, correlation analysis, and multiple regression. STROBE checklist was used for the methodology in this study. Results A total of 564 nursing students were ultimately included in the study. The average overall transition shock score was 46 (41, 52). Attitude toward the nursing profession had an independent influence on nursing students’ transition shock (p < 0.05). Additionally, the number of night shifts, choosing nursing as the first choice, being class leaders, education level, future plans, school scale, and monthly household income contributed to different dimensions of transition shock (p < 0.05). Conclusion and implications for nursing policy Nursing students experience moderate transition shock, with attitude towards nursing as a key influencing factor. Clinical managers should implement targeted measures to better support nursing students improve their attitudes.

Access to clean energy in Africa revisited: The roles of women empowerment, corruption control, FDI and sectoral growth

One of the key contributors to climate change is energy consumption, with the type of energy used having implications on the natural environment and health of users. To promote environmental sustainability and sustainable development, Sustainable Development Goal (SDG) 7 aims to achieve accessibility, and affordability of clean and modern forms of energy for all. This study aims to investigate the effects of women empowerment, corruption control, foreign direct investment, and sectoral growth on access to clean energy in Africa, as well as the effects of the interrelatedness of these factors on clean energy access. Using data on 32 countries in Africa from 2002 to 2021 and rigorous econometric techniques, the study finds that women empowerment and corruption control significantly increase access to clean energy in Africa while sectoral analyses show varying effects of growth in the different sectors on clean energy accessibility. Furthermore, it is found that corruption control is not able to reverse situations of adverse effects of some variables on access to clean energy in some cases, likely due to the low levels of corruption control in Africa. The results suggest that African countries could enhance access to clean energy for its citizens and harness the full potential of clean energy, to promote sustainable development and improve the lives of their population, by empowering women, fighting corruption, and cultivating balanced economic growth.

Effect of power training on physical functional performance of patients with Parkinson’s disease: A systematic review and meta-analysis of randomized controlled trials

Introduction Parkinson’s disease (PD) is becoming more prevalent, highlighting the urgency of developing treatments to minimize its effects on muscular strength and physical function. Power training (PT) is a potential approach that may improve endurance and muscular power, essential for maintaining functional ability in PD. Objective To compare the effect of PT versus control or other physical activity (PA) interventions on physical functional performance (PFP) in PD patients. Methods We searched PubMed, MEDLINE, Embase, LILACS, PEDro, Cochrane Library, and Scopus. Inclusion criteria were randomized controlled trials comparing PT to a control group or another PA intervention in PD patients. PFP was the primary outcome. Pooled effect estimates were calculated from baseline to endpoint scores. Results From 21,558 results, four studies were included in the meta-analysis due to their moderate to high methodological quality. PT showed no significant effect on PFP outcomes compared to control groups (TUG: ES, −0.281; 95% CI, −0.693 to 0.130; P = 0.180; I2:0%; PWS: ES, 0.748; 95% CI, −0.768 to 2.265; P = 0.333; I2:88%; FWS: ES, 0.420; 95% CI, −0.950 to 1.791; P = 0.548; I2:83%; SLS: ES, 0.161; 95% CI, −0.332 to 0.655; P = 0.521; I2:0%). No differences were found between PT and alternative interventions (TUG: ES, 0.132; 95% CI, −0.394 to 0.657; P = 0.623; I2:0%; BBA: ES, 0.057; 95% CI, −0.430 to 0.544; P = 0.820; I2:0%). Conclusion PT did not improve PFP compared to control or alternative interventions. More studies are needed to explore PT effects (e.g., higher volume, intensity, and combined types) in PD patients.

Retraction: Nanocurcumin Prevents Hypoxia Induced Stress in Primary Human Ventricular Cardiomyocytes by Maintaining Mitochondrial Homeostasis

Class-aware feature attention-based semantic segmentation on hyperspectral images

This research explores an innovative approach to segment hyperspectral images. Aclass-aware feature-based attention approach is combined with an enhanced attention-based network, FAttNet is proposed to segment the hyperspectral images semantically. It is introduced to address challenges associated with inaccurate edge segmentation, diverse forms of target inconsistency, and suboptimal predictive efficacy encountered in traditional segmentation networks when applied to semantic segmentation tasks in hyperspectral images. First, the class-aware feature attention procedure is used to improve the extraction and processing of distinct types of semantic information. Subsequently, the spatial attention pyramid is employed in a parallel fashion to improve the correlation between spaces and extract context information from images at different scales. Finally, the segmentation results are refined using the encoder-decoder structure. It enhances precision in delineating distinct land cover patterns. The findings from the experiments demonstrate that FAttNet exhibits superior performance compared to established semantic segmentation networks commonly used. Specifically, on the GaoFen image dataset, FAttNet achieves a higher mean intersection over union (MIoU) of 77.03% and a segmentation accuracy of 87.26% surpassing the performance of the existing network.

How value perspectives influence decision-making in the South African private healthcare sector: A cross-sectional comparative study

Background Every healthcare clinical event aims to create value at a certain cost. This value has been defined as the outcome achieved (the degree to which a care event achieved a clinical goal) divided by the cost incurred (determined by the combined price charged by the care provides) to generate the outcome. Subsequently, patient experience has been included as a third factor contributing to value of care, but its value and relationship relative to clinical outcome and event cost is not well understood. This cross-sectional comparative study explored the relative importance of 1) clinical outcome, 2) event cost, and 3) patient experience as they relate to the value of care in the South African private healthcare context. Materials and methods Using a value perspectives survey, healthcare consumers (n = 662) and healthcare providers (n = 318) distributed 100 points between the three factors according to how they perceived their value. They were then asked to assess the value of the three factors across six clinical scenarios progressing in clinical severity. Results For all scenarios, all participants valued patient experience above event cost, but lower than clinical outcome. However, there were significant differences between consumers and providers in the relative value assigned to each of the three factors. These values changed as the severity of the surgical and medical scenarios changed. Patient experience was consistently assigned a higher value than event cost, thereby making a strong argument for its inclusion into the healthcare value equation. Conclusion Both South African healthcare consumers and providers assigned significant value to patient experience across a range of clinical scenarios. These findings suggest that patient experience should be included as a factor in the Value Care Index (VCI) where VCI = (Outcome ÷ Cost) x Patient Experience.

Cultural adaptation, translation and validation of the conflict in adolescence dating relationship inventory (CADRI) in the Greek language

Background Dating violence (DV) is a major public health problem with serious consequences for the young population. The Conflict in Adolescent Dating Relationship Inventory (CADRI) is the most internationally used tool to measure DV. However, no tool has been translated, culturally adapted, or validated in the Greek context to assess the prevalence of DV in the Greek population. Aim To culturally adapt, validate, and translate the Conflict in Adolescent Dating Relationship Inventory (CADRI) in the Greek language to ensure its reliability and cultural and linguistic validity in the Greek population. Methods A cross-cultural adaptation process and cross-sectional study were carried out. There were two phases in the research. First, face validity was assessed after the first phase of translation, which included cross-cultural item adaptation, content validation and expert review of the instrument. In the second stage, the scale’s psychometric qualities were assessed on a sample of nursing college students. A CADRI instrument was used to assess DV. Results The final sample comprised a total of 177 university students. The internal consistency and reliability were good (>0.7), with a Cronbach’s alpha of 0.889 for the violence perpetrated subscale and 0.925 for the violence suffered subscale, indicating strong correlations between the total item scores. After exploratory factor analysis was performed, the structure obtained was similar to the original structure. Furthermore, 88.7% of university students perpetrated DV in the last year on their partners, and 90.7% suffered DV, with verbal and emotional violence the most common types. Conclusion This study provides robust evidence of the validity and reliability of the CADRI for measuring DV in the Greek university population. Additionally, the high prevalence makes it necessary to create DV prevention plans and further research, especially among nursing students. Impact Validation of the CADRI in Greece will increase the knowledge of DV in this population, which lacks validated instruments. Public contribution The results obtained with the CADRI can be applied to the prevention of DV in young people.

The impact of the Hamas-Israel conflict on the U.S. defense industry stock market return

On October 7th, 2023, Hamas carried out a terrorist attack on Israel. The Israeli government promptly retaliated the attack with massive bombing and a major military operation in the Gaza Strip. Following these events, a period of uncertainty started about the potential escalation of the internal conflict into a widespread regional conflict, or at least causes a threat to the fragile peace in the Middle East. This uncertainty was even further exacerbated as many regional leaders strongly condemned the actions of Israel. This study investigates whether the equity value of U.S. defense companies stands to gain in the short run from the risk of regional peace instability, given the anticipated increase in demand for arms. For this purpose, we rely on different approaches to capture the threat to regional peace caused by the internal conflict, including one based on the intensification of internet searches containing information about the Hamas-Israeli conflict. The key findings of this study unequivocally reveal that there is a significant positive relationship between the conflict intensity and the daily stock market returns of U.S. arms-producing firms. This result may suggest that investors are inclined to believe that the internal conflict is a serious threat to the regional peace, thereby enhancing the business prospects of the U.S. defense industry, as the largest arms supplier in the area.

Evaluation of comorbidity burden on disease progression and mortality in patients with interstitial pneumonia with autoimmune features: A retrospective cohort study

Background Interstitial pneumonia with autoimmune features (IPAF) is a subset of interstitial lung disease that manifests with features of autoimmunity while not meeting classification criteria for a defined rheumatic disease. Comorbidity burden is an important prognostic indicator in various rheumatic and interstitial lung diseases, but few studies have commented on comorbidities in this population. This study was conducted to evaluate the association of individual comorbidities, the Charlson Comorbidity Index (CCI), and the Rheumatic Disease Comorbidity Index (RDCI) with lung disease progression and transplant/mortality outcomes in patients with IPAF. Methods In a retrospective study, we evaluated the prevalence and severity of comorbidities in an institutional cohort of patients with IPAF. Using Cox regression, we correlated the association of individual comorbidities and comorbidity indices with time to lung disease progression (relative forced vital capacity decline of 10% or more) and with time to lung transplant/death. We compared the performance of CCI and RDCI in predicting outcomes. Results History of cerebrovascular accident (CVA) or cardiovascular disease (CVD), moderate-severe chronic kidney disease, and fracture was associated with a faster onset of lung disease progression, while a history of gastroesophageal reflux was protective. History of CVA/CVD, diabetes mellitus, and lymphoma were associated with a faster onset of lung transplant/death. Both CCI and RDCI were associated with shorter time to lung disease progression and lung transplant/death in unadjusted analyses. However, only CCI was associated with shorter time to lung transplant/death in analyses adjusted for age, sex, pulmonary function, and radiographic pattern of lung lesion. Conclusions CCI and RDCI may be useful tools in assessing prognosis in patients with IPAF in terms of both lung disease progression and mortality. Prospective studies are needed to further evaluate the performance of CCI and RDCI and the impact of optimizing comorbid conditions that may mitigate poor outcomes among patients with IPAF.