bluuebunny/crossref_metadata_2025 huggingface dataset:
Future Dietary Transformation and Its Impacts on the Environment in China
Authors: Sun Hongjie , Zhu Benzheng , Cao Qingqing
Published: August 2023

Meeting China’s future food consumption needs without increasing the environmental burden is one of the largest sustainability challenges in the ensuing decades. China is a typical urban–rural binary society, and there is a certain gap in the diets of urban and rural residents. With the advancement of urbanization, the future trend of Chinese urban and rural residents’ diets and its impact on the environment is a topic worth exploring. This study intends to examine the future changes in dietary intake of urban and rural residents in China as well as their impact on carbon emissions, virtual water, and arable land. These results indicate that the trend of decreasing grain consumption and increasing animal food consumption in China over the next 30 years will continue. However, the gap in per capita consumption of ruminant meat, aquatic products, and eggs between urban and rural residents will not be narrowed in the future. The combination of structural demand trends and population urbanization will likely impose stress on domestic food supplies over the long term. In addition, the burden of the dietary environment in China will further increase in the future, especially in urban areas, but rural areas will significantly decrease with a decrease in population size. In theory, if three alternative dietary scenarios are adopted, the environmental impact of Chinese residents’ diets can be significantly reduced in the future. More specifically, the demand gap for carbon emissions, virtual water, and arable land for urban residents’ diets in the future will exhibit heterogeneity under three alternative dietary scenarios. To achieve the long-term goals of ensuring food safety and sustainable environmental development in China in the future, it is necessary to take multiple measures, such as consuming a reasonable and balanced diet, reducing food waste, increasing agricultural technology investment, and increasing the import of resource-intensive food.
Can Business Models Facilitate Strategic Transformation in Construction Firms? A Systematic Review and Research Agenda
Authors: Das Priyadarshini , Hijazi Amer A. , Maxwell Duncan W. , Moehler Robert C.
Published: August 2023

A business model represents an organisation’s value logic with a value proposition as the central dimension. The construction industry has been categorised as fragmented, slow to move and destructively competitive, idealising only cost-based perceptions of performance; however, recent trends indicate a paradigm shift in the sector emphasising value-based perspectives such as early engagement, design for manufacture and assembly, and a lifecycle approach by promoting a conscious discourse on business model innovation. This paper presents a systematic review and integration of research on business models in the construction industry. The findings illuminate the potential of business models as creative tools for strategy formulation, the importance of strategic partnerships in novel business models, and the bridging role that business models play between technology integration and strategy formulation. Based on the findings, the paper proposes future research directions, including understanding how managers can steer conflicts towards cooperative competition (coopetition), exploring various pathways (leaping and drifting) for business model innovation and project-based business model innovation. The paper establishes that using a business model approach to facilitate strategic transformation can help construction firms resolve some of the most pressing challenges, such as customer dissatisfaction, fragmentation, and slow technology uptake.
n-Quasi-m-Complex Symmetric Transformations
Authors: Al-Dohiman Abeer A. , Mahmoud Sid Ahmed Ould Ahmed , Frasin Basem Aref
Published: August 2023

Our aim in this study is to consider a generalization of the concept of m-complex symmetric transformations to n-quasi-m-complex symmetric transformations. A map S∈B(Y) is said to be an n-quasi-m-complex symmetric transformation if there exists a conjugation C on Y such that S satisfies the condition S*n∑0≤k≤m(−1)m−kmkS*kCSm−kCSn=0, for some positive integers n and m. This class of transformation contains the class of m-complex symmetric transformations as a proper subset. Some basic structural properties of n-quasi-m-complex symmetric linear transformations are established with the help of transformation matrix representation. In particular, we obtain that a power of an n-quasi-m-complex symmetric is again an n-quasi-m-complex symmetric operator. Moreover, if T and S are such that T is an n1-quasi-m1-complex symmetric and S is an n2-quasi-m2-complex symmetric, their product TS is an max{n1,n2}-quasi-(m1+m2−1)-complex symmetric under suitable conditions. We examine the stability of n-quasi-m-complex symmetric operators under perturbation by nilpotent operators.
Joint Optimization of Preventive Maintenance and Spare Parts Ordering Considering Imperfect Detection
Authors: He Yuanchang , Gao Zhenhua
Published: August 2023

The optimization of preventive maintenance and spare part ordering strategies for modern production equipment is of utmost importance, given its substantial influence on the reliability of equipment systems. Furthermore, the optimization problem discussed here has a direct impact on the reduction of maintenance expenses, thus making it a significant area of research. The optimization of preventive maintenance and spare parts ordering techniques for contemporary industrial equipment, which is a massive and complex system, faces substantial obstacles notwithstanding prior research efforts in the subject. Prior studies have typically assumed a fixed lead time for spare parts ordering, often leading to discrepancies with actual practice. When faced with a critical component failure, such as rolling bearings, it is not advisable for the decision maker to strictly adhere to the ordering strategy. Therefore, this paper presents a novel approach to the maintenance management method, which optimizes preventive maintenance and spare parts ordering strategies using a dynamic early warning period model based on different equipment states. The model incorporates two maintenance approaches, namely normal ordering and emergency ordering, and the equipment will adopt the corresponding maintenance method according to its state. Furthermore, the model takes imperfect detection of equipment states into account since equipment monitoring is not always accurate. Numerical experiments were conducted using rolling bearings, which are a crucial component in typical mechanical equipment, as a case study. The findings indicate that the improved model exhibits a unit time cost of 1.3021, whereas the original model has a unit time cost of 1.3611. Consequently, the new model effectively reduces the maintenance cost. This new method can better resolve the coordination challenge between preventive maintenance and spare parts ordering for equipment, the enhancing of equipment system reliability, and reduce maintenance expenses. In summary, the text presents a significant contribution in the form of a proposed preventive maintenance model that offers increased flexibility, aiming to effectively reduce maintenance costs.
Decent Life Initiative and Sustainable Development Goals: A Systems Thinking Approach
Authors: Azab Shimaa , Rabie Aya Ebrahim , Hafez Fatma , Mostafa Asmaa Hamdy , El Rayes Amani Helmi , Awad Mai Mostafa
Published: August 2023

Decent Life is a presidential initiative that was launched in Egypt in the year 2019. The initiative targets complex problems facing underprivileged villages in Egypt. This paper uses a systems thinking approach to gain a holistic view of the initiative dimensions and address the interlinkages between these dimensions from the perspective of the Sustainable Development Goals (SDGs). The paper used a causal loop diagram (CLD) as a visualization of the systems thinking approach to analyze the interactions and interlinkage between all the components of the system. The Decent Life Initiative works on improving economic, social, and environmental infrastructures, which are related to SDGs. To achieve the initiative’s goals effectively, this paper suggests working under the umbrella of three important factors: Raising awareness, adopting technology, and putting in place supportive policies and legislations. Finally, the paper suggests using system dynamics as a quantitative method, which uses stock-flow diagrams, to measure the impacts of the initiative on the achievement of the SDGs in Egypt.
11-Nor-9-Carboxy Tetrahydrocannabinol Distribution in Fluid from the Chest Cavity in Cannabis-Related Post-Mortem Cases
Authors: Zughaibi Torki A. , Alharbi Hassan , Al-Saadi Adel , Alzahrani Abdulnasser E. , Al-Asmari Ahmed I.
Published: August 2023

In this study, the presence of 11-nor-Δ9-carboxy tetrahydrocannabinol (THC-COOH) in postmortem fluid obtained from the chest cavity (FCC) of postmortem cases collected from drug-related fatalities or criminal-related deaths in Jeddah, Saudi Arabia, was investigated to evaluate its suitability for use as a complementary specimen to blood and biological specimens in cases where no bodily fluids are available or suitable for analysis. The relationships between THC-COOH concentrations in the FCC samples and age, body mass index (BMI), polydrug intoxication, manner, and cause of death were investigated. Methods: Fifteen postmortem cases of FCC were analyzed using fully validated liquid chromatography-positive-electrospray ionization tandem mass spectrometry (LC-MS/MS). Results: FCC samples were collected from 15 postmortem cases; only THC-COOH tested positive, with a median concentration of 480 ng/mL (range = 80–3010 ng/mL). THC-COOH in FCC were higher than THC-COOH in all tested specimens with exception to bile, the median ratio FCC/blood with sodium fluoride, FCC/urine, FCC/gastric content, FCC/bile, FCC/liver, FCC/kidney, FCC/brain, FCC/stomach wall, FCC/lung, and FCC/intestine tissue were 48, 2, 0.2, 6, 4, 6, 102, 11, 5 and 10-fold, respectively. Conclusion: This is the first postmortem report of THC-COOH in the FCC using cannabinoid-related analysis. The FCC samples were liquid, easy to manipulate, and extracted using the same procedure as the blood samples. The source of THC-COOH detected in FCC could be derived from the surrounding organs due to postmortem redistribution or contamination due to postmortem changes after death. THC-COOH, which is stored in adipose tissues, could be a major source of THC-COOH found in the FCC.
Gravitational Quantum Mechanics—Implications for Dark Matter
Authors: Ernest Allan D.
Published: August 2023

The laboratory verification of the existence of gravitational eigenstates and studies of their properties in the Earth’s gravitational field raises the question of whether the prediction of particle behaviour in gravitational wells would be any different if it were analysed using quantum theory rather than classical physics. In fact, applying Schrodinger’s equation to the weak gravity regions of large gravitational wells shows that particles in these wells can have significantly reduced optical interaction cross sections and be weakly interacting compared to classical expectations. Their cross sections are dependent on their wavefunctional form and the environment in which they exist. This quantum phenomenon has implications for the dark matter (DM) problem. Analysis using gravitational quantum mechanics (GQM) has shown that a proton, electron, or any other particle within the standard model of particle physics (SMPP) could potentially function as a “dark matter particle” when bound in a gravity well, provided the gravitational eigenspectral ensemble of their wavefunction contains a sufficient proportion of the gravitational well’s weakly interacting gravitational eigenstates. The leading theoretical paradigm for cosmic evolution, Lambda Cold Dark Matter (LCDM), currently lacks a suitable weakly interacting DM candidate particle, and gravitational quantum theory could provide a resolution to this. This article reviews the GQM approach to DM and provides some new results derived from the GQM analysis of particles held in the weak gravity regions of deep gravitational wells. It also outlines some predictions of the gravitational quantum approach that might be tested through observation.
Radio Frequency Interference Measurements to Determine the New Frequency Sub-Bands of the Coaxial L-P Cryogenic Receiver of the Sardinia Radio Telescope
Authors: Schirru Luca , Ladu Adelaide , Gaudiomonte Francesco
Published: August 2023

Radio frequency interference (RFI) represents all unwanted signals detected by radio receivers of a telescope. Unfortunately, the presence of RFI is significantly increasing with the technological development of wireless systems around the world. For this reason, RFI measurement campaigns are periodically necessary to map the RFI scenario around a telescope. The Sardinia Radio Telescope (SRT) is an Italian instrument that was designed to operate in a wide frequency band between 300 MHz and 116 GHz. One of the receivers of the telescope is a coaxial cryogenic receiver that covered a portion of the P and L bands (i.e., 305–410 MHz and 1300–1800 MHz) in its original version. Although the receiver was used for years to observe bright sources with sufficient results, its sub-bands can be redesigned considering the most recently evolved RFI scenario. In this paper, the results of a RFI measurement campaign are reported and discussed. On the basis of these results, the new sub-bands of the L-P receiver, together with the design of the new microwave filter selector block of the SRT receiver, are presented. In this way, SRT will cover up to 120 MHz and 460 MHz of −3 dB bandwidth at the P-band (290–410 MHz) and L-band (1320–1780 MHz), respectively. The bands of these filters are selected to reject the main RFI with high levels of amplitude and optimize the estimated antenna temperature and sensitivity of the receiver during the research activities, such as pulsar observations, very long baseline interferometer applications and spectroscopy science.
Structural and Synthetic Aspects of Small Ring Oxa- and Aza-Heterocyclic Ring Systems as Antiviral Activities
Authors: Manna Sibasish , Das Koushik , Santra Sougata , Nosova Emily V. , Zyryanov Grigory V. , Halder Sandipan
Published: August 2023

Antiviral properties of different oxa- and aza-heterocycles are identified and properly correlated with their structural features and discussed in this review article. The primary objective is to explore the activity of such ring systems as antiviral agents, as well as their synthetic routes and biological significance. Eventually, the structure–activity relationship (SAR) of the heterocyclic compounds, along with their salient characteristics are exhibited to build a suitable platform for medicinal chemists and biotechnologists. The synergistic conclusions are extremely important for the introduction of a newer tool for the future drug discovery program.
The Potential Risk Compensation after Receiving HPV Vaccination among Men Who Have Sex with Men in Southwest China: A HAPA-Based Analysis
Authors: Cao Zhen , Jiang Han , He Wei , Pan Haiying , Zhang Cong , Zhong Xiaoni
Published: August 2023

Background: men who have sex with men (MSM) are a high-risk group for human papillomavirus (HPV) infection, and the HPV vaccine is effective in preventing it. However, according to risk compensation theory, people may increase sexual risk behaviors after receiving HPV vaccination. Based on the Health Action Process Approach (HAPA), this study investigated the influencing factors to predict intention to reduce condom use (risk compensation intention) among MSM after taking HPV vaccination in southwest China. Methods: we conducted a cross-sectional study among 948 MSM in southwest China using a non-probability sampling method and an electronic questionnaire including sociodemographic characteristics, sexual risk behavior characteristics, HPV-related prevention behavior, and the HAPA scale. Confirmatory factor analysis was performed using a structural equation model. Results: among 948 MSM, the incidence rate of reducing the frequency of condom use was 14.1%. The structural equation model showed that self-efficacy (β = −0.378, p = 0.020) and positive outcome expectancy (β = 0.366, p < 0.05) had greater effects on behavioral intention, followed by negative outcome expectancy (β = −0.296, p < 0.05) and risk perception (β = −0.232, p < 0.05). Conclusions: risk compensation may not be a major barrier to receiving HPV vaccination among MSM. Nevertheless, the recognition of possible risk compensation is necessary to implement appropriate interventions to reduce the occurrence of risk compensation.
Predicting the Influences of Depression and Sexual Stigma on Motivation to Get Vaccinated against COVID-19 in Lesbian, Gay, and Bisexual Young Adults: A 4-Year Follow-Up Study
Authors: Lin Yen-Ju , Chang Yu-Ping , Yen Cheng-Fang
Published: August 2023

Vaccination is a crucial preventive measure against COVID-19. However, limited research has focused on identifying the factors predicting motivation to get vaccinated against COVID-19 (MoVAC-19) among lesbian, gay, and bisexual (LGB) individuals. This study examined the predictive effects of depression and sexual stigma (i.e., perceived sexual stigma from family members, perceived sexual orientation microaggression, and internalized sexual stigma) before the COVID-19 pandemic on MoVAC-19 among LGB individuals 4 years later during the COVID-19 pandemic in Taiwan. Baseline data related to depression and sexual stigma were collected in 2018 and 2019. Depression was assessed using the 20-item Mandarin Chinese version of the Center for Epidemiologic Studies Depression Scale. Perceived sexual stigma from family members was assessed using the Homosexuality-Related Stigma Scale. Internalized sexual stigma was assessed using the Measure of Internalized Sexual Stigma for Lesbians and Gay Men. Perceived sexual orientation microaggression was assessed using the Sexual Orientation Microaggression Inventory. Participant MoVAC-19 during the pandemic was assessed using the nine-item Motors of COVID-19 Vaccination Acceptance Scale. The associations of depression and sexual stigma at baseline with MoVAC-19 at follow-up were examined through multivariate linear regression analysis. Internalized sexual stigma was negatively associated with MoVAC-19, whereas perceived sexual orientation microaggression was positively associated with MoVAC-19. Depression and perceived sexual stigma from family members were not significantly associated with MoVAC-19. Although male sex and older age were positively associated with increased MoVAC-19, sex and age did not moderate the relationship between sexual stigma and motivation to get vaccinated. Among LGB individuals, sexual stigma experiences should be considered when developing intervention strategies aimed at enhancing MoVAC-19.
Failure of Passive Immunity Transfer Is Not a Risk Factor for Omphalitis in Beef Calves
Authors: Perrot Florent , Joulié Aurélien , Herry Vincent , Masset Nicolas , Lemaire Guillaume , Barral Alicia , Raboisson Didier , Roy Christophe , Herman Nicolas
Published: August 2023

Omphalitis is the third most frequent disease in newborn calves after neonatal diarrhea and bovine respiratory disease (BRD), but limited data on the prevalence and risk factors are available in the literature. Failure of passive immunity transfer (FPIT) is recognized as a major risk factor for diseases and mortality in calves. However, the association between omphalitis and FPIT remains poorly described. To assess this association, 964 suckler beef calves from 22 farms were included in a longitudinal cohort study for 5 months. Each calf was examined twice (mean ages: 4.4 and 11.1 days old) to diagnose omphalitis through clinical examination and ultrasonographic evaluation (USE) if necessary. Measurements of the total solids percentage (TS-%Brix) and total protein (TP) were performed on the serum during the first visit to evaluate the calves’ passive immunity status. FPIT (fair and poor) was defined as serum %Brix < 8.1 or TP < 5.1 g/dL; among calves with omphalitis, 14% had FPIT and among calves without omphalitis 12% had FPIT. The omphalitis prevalence was 32.3% in calves without any other disease (overall prevalence of 30.9%). No statistical association between the prevalence of omphalitis and FPIT was observed. Further research is needed to identify the risk factors and promote the prevention measures for omphalitis in cow–calf systems, such as calving difficulty, hygiene of housing, and navel disinfection.
Adsorption Removal of Phosphate from Rural Domestic Sewage by Ca-Modified Biochar Derived from Waste Eggshell and Sawdust
Authors: Xu Cancan , Liu Rui , Tang Qi , Hou Yifan , Chen Lvjun , Wang Quanxi
Published: August 2023

In recent years, in order to improve the rural living environment, rural domestic sewage treatment has received more and more attention in China. However, the standard compliance rate of total phosphorus (TP) in rural domestic sewage after treatment is very low, and TP has become the main pollutant that prevents rural domestic sewage treatment facilities from meeting water pollutants discharge standards. In this study, to prepare calcium-modified biochar composites (E-BC) by one-step pyrolysis, waste eggshell (E) was employed as a calcium source and waste pine sawdust (BC) was employed as a carbon source. The E-BC composites produced were effective in adsorbing phosphate (P) from aqueous solutions in a broad pH range of 3–11, with good adsorption selectivity. E-BC’s adsorption capacity for P increased as the pyrolysis temperature increased from 700 °C to 900 °C, which was attributed to the higher specific surface area and calcium oxide content at higher pyrolysis temperatures. The E-BC sample, which was made from eggshell (filtered through 100 mesh sieves) and pine sawdust (filtered through 100 mesh sieves) with a mass ratio of 2:1 and a pyrolysis temperature of 900 °C, had a maximum adsorption capacity of 301 mg/g. The Langmuir model and pseudo second-order model were the best at describing the adsorption process, and the predominant sorption mechanism for P is the chemisorption reaction of calcium oxide or calcium hydroxide with phosphate to create hydroxyapatite. E-BC can effectively remove P from rural domestic sewage. The total phosphorus (TP) removal rate in rural domestic sewage ranges from 95.3 to 99.5%. After adsorption treatment, the discharge of TP in rural sewage meets the second-grade (TP < 3 mg/L) or even the first-grade (TP < 2 mg/L). This study provides an experimental basis for efficient P removal using E-BC adsorbent materials and suggests possible applications in rural domestic sewage.
Lake Ice Simulation and Evaluation for a Typical Lake on the Tibetan Plateau
Authors: Si Yajun , Li Zhi , Wang Xiaocong , Liu Yimin , Jin Jiming
Published: August 2023

This study aims to simulate the lake ice conditions in the Nam Co lake using a lake ice model, which is a one-dimensional physics-based model that utilizes enthalpy as the predictor variable. We modified the air density schemes within the model to improve the accuracy of the lake ice simulation. Additionally, the process of lake ice sublimation was included, and the effect of lake water salinity on the freezing point was considered. Using the improved lake ice model, we simulated lake surface water temperature, lake ice thickness, and interannual variations in lake ice phenology, and we compared these results with observations at Nam Co. The results demonstrate that the improved model better reproduces the lake surface water temperature, lake ice thickness, and lake ice phenology at Nam Co. Additionally, the thin air density affects lake processes by weakening sensible heat and latent heat, which ultimately leads to a delayed ice-on date and a slightly earlier ice-free date in Nam Co. This study contributes to an enhanced understanding of the freeze–thaw processes in Nam Co and reduces the biases in lake ice simulation on the Tibetan Plateau through the lake model improvement.
A Laboratory Simulation Experiment to Assess Permeability and Shear Strength of a Gravel Soil Colluvium
Authors: Xu Xiaoliang , Zhang Jiafu , Ji Enyue , Wang Lehua , Huang Peng , Wang Xiaoping
Published: August 2023

Landslides are caused by rainfall as one of the main factors. In order to study the effect of rainfall on the physical and mechanical parameters of landslides, a physical model of the colluvium landslide is created in laboratory conditions with silty clay, river sand, and gravel, taking Shuping landslide in the Three Gorges Reservoir area as the prototype. The artificial rainfall is applied to the accumulation model, which is steady for 60 h, and then the gravel soil is taken out along the different elevations of the colluvium for the permeability test and direct shear test, and the evolution law of changes in porosity, the permeability coefficient, and the shear strength parameters along the elevation are studied. Combined with XRF and NMR tests, the spatial variation of the permeability coefficient and shear strength parameters is discussed from the perspective of chemical elements, minerals content, and porosity, and the stability analysis of a colluvium landslide is carried out considering the influence of parameters along the elevation. The results show that under the action of rainfall seepage, the fine particles of clay are transported from upslope to downslope, resulting in more and more fine particles of clay at the toe slope. The original pores are gradually filled, the cementation between particles is stronger, the corresponding cohesion is increased, and the permeability coefficient is reduced. Due to the loss of fine particles at the upslope, the relative content of coarse particles increases, leading to an increase in the internal friction angle. The variability of the slope’s physical and mechanical parameters is a result of the spatial transport of clay particles in the colluvium caused by the rainfall seepage above. Specifically, the permeability coefficient and internal friction angle from upslope to downslope decrease linearly under the action of rainfall, but the law of the cohesion increases linearly. The upslope’s permeability coefficient and internal friction angle decrease by 11% and 8% compared to those of the downslope, while the cohesion increases by 168%. The results of FLAC3D numerical calculation of Shuping landslide show that the maximum deformation in the X direction of 145 m and 175 m water level increases by 12% and 42%, and the safety factor decreases by 0.63% and 5% under the combined action of rainfall and the reservoir water level, that is, when considering the variation of parameters along the elevation of the landslide. The research findings provide a better understanding of the spatial parameters in similar colluvium bodies under rainfall action.
An Efficient Dynamic Coupling Calculation Method for Dam–Reservoir Systems Based on FEM-SBFEM
Authors: Xu He , Xu Jianjun , Yan Dongming , Chen Kai , Zou Degao
Published: August 2023

In the dynamic analysis of dam–reservoir interactions, the computational efficiency of coupling system is relatively low. When numerical methods such as the scaled boundary finite element method (SBFEM) or the finite element method (FEM) are used to deal with hydrodynamic pressure, the additional mass matrix for the hydrodynamic pressure of incompressible reservoir water obtained is the full matrix. In this study, an efficient three dimensional (3D) dynamic fluid–solid coupling analysis method for dam–reservoir systems based on the FEM-SBFEM is proposed and applied to the dynamic calculation and analysis of an arch dam under seismic conditions, which adopts the SBFEM to solve the hydrodynamic pressure of the reservoir and employs the FEM to discretize the dam. In the proposed method, the hydrodynamic pressure additional mass matrix is simplified according to the physical meaning and distribution characteristics of the additional matrix with only a reduction coefficient α (0 < α ≤ 1.0), which is simple and easy to implement. The suggested value of the reduction coefficient α for the added mass matrix of the hydrodynamic pressure is selected to be 0.6 so as to ensure that the error of the maximum value of the dynamic response of the dam is limited within 5%, which is acceptable, and the elapsed time of calculation can be reduced to one twentieth of the accurate solution, which is a great jump in calculation efficiency. The proposed method provides a practical and effective process for the analysis of dam–reservoir dynamic interaction systems with a large computational scale and a fine grid scale.
Groundwater Contamination and Risk Assessment in Greater Palm Springs
Authors: Khalid Warda , Jat Baloch Muhammad Yousuf , Ali Asmat , Ngata Mbega Ramadhani , Alrefaei Abdulwahed Fahad , Rashid Abdur , Ilić Predrag , Almutairi Mikhlid H. , Siddique Jamil
Published: August 2023

Groundwater is an essential resource for drinking water, but its contamination with potentially toxic elements and arsenic (As) is a global issue. To evaluate As and its levels in the Coachella Valley, the US Geological Survey (USGS) collected 17 groundwater samples. This study looked into the arsenic distribution, enrichment, hydrogeochemical behavior, and health risks associated with the samples. The comparative analysis between groundwater contamination in Greater Palm Springs and similar regions, could provide valuable insights into regional differences and common challenges. The hydrogeochemical facies showed the dominance of calcium and magnesium-bicarbonate-carbonate, indicating permanent hardness and salt deposits of residual carbonate. The Gibbs plot demonstrated that chemical weathering of rock-forming minerals and evaporation are the primary forces impacting groundwater chemistry. Geochemical modeling revealed saturation for calcite and dolomite, and under-saturation for halite. Principal component analysis identified the potential contributory sources for contamination of groundwater. The carcinogenic and non-carcinogenic potentials of the toxic elements arsenic, cadmium, chromium (VI), and lead were calculated using a human health risk assessment model. For both adults and children, the highest non-carcinogenic mean value was observed for arsenic (8.52 × 10−1), with the lowest for cadmium (1.32 × 10−3). Children had the highest cumulative non-carcinogenic risk from potentially toxic elements. Our research offers crucial baseline data for assessing arsenic in groundwater at the regional level, which is important for health risk reduction and remediation programs. The data show that preventative action must be taken to reduce the potential health risks in the study area from drinking groundwater, particularly for children.
O ENSINO MÉDIO NO BRASIL
Authors: Silva Henrique Souza
Published: August 2023

O presente artigo delineará um retrospecto das experiências pedagógicas acerca do Ensino Médio, apresentando os limites e impasses dessa etapa da educação básica em favorecer aos jovens alunos a construção de um projeto de vida, até mesmo porque o Ensino Médio ainda busca uma identidade e sentido de existência. Nesse sentido, propõe destacar alguns projetos e reflexões das experiências pedagógicas e apresentar os limites e impasses dessa etapa da educação básica que busca uma identidade e sentido de existência. O grande desafio está em oferecer um currículo integrado, consistente, motivador que favoreça aos educandos consolidarem um projeto de vida capaz de promover a formação integral numa transformação significativa da sociedade.
A PRÁTICA PEDAGÓGICA E A SAÚDE NA ESCOLA: UM OLHAR PARA O DOCENTE
Authors: Candito Vanessa , Mendonça Menezes Karla , Braz Carlan Rodrigues Carolina , Antunes Soares Felix Alexandre
Published: August 2023

A pandemia trouxe a imposição aos profissionais em educação desenvolverem novos conhecimentos e habilidades para lidar com os desafios impostos. A necessidade de se reinventar, provocou em muitos professores uma sensação de mal-estar, e intervenções no campo da saúde mental tornaram-se imprescindíveis na atuação docente. Esse estudo investiga como à pandemia impactou na prática pedagógica e a na saúde dos docentes, de uma escola pública. Assim, buscou-se por meio dessa investigação corroborar com possíveis melhorias das condições apresentadas, além de apresentar contribuições científicas para o campo do bem-estar e qualidade de vida dos docentes. As ações formativas contemplaram as demandas emergentes do cotidiano escolar, como forma de apoiar os professores, e incluir a escuta e o diálogo sobre saúde mental no âmbito das formações continuadas. Foi possível identificar os reflexos do ensino remoto emergencial na prática docente, e as implicações que impactaram a qualidade de vida dos educadores.
AVALIAÇÃO DA CONTRIBUIÇÃO DOS INDICADORES DE DESEMPENHO AMBIENTAL EMPRESARIAL NA UTILIZAÇÃO DO RECURSO ÁGUA
Authors: Patti Fabiana , Azevedo Fernanda DallAra , Arruda Regina De Oliveira Moraes , Rosini Edna Ferreira
Published: August 2023

A consciência ambiental e social tem aumentado nos últimos anos tornando cada vez mais necessárias ações de sustentabilidade ambiental também no meio empresarial, especialmente aquelas relacionadas a preservação dos recursos hídricos, bem de valor inestimável e de essencial importância à vida em todas as suas formas e ao equilíbrio do ecossistema. O objetivo desse trabalho é avaliar a contribuição dos indicadores de desempenho ambiental para uma análise da sustentabilidade empresarial num contexto geoambiental amplo ao longo da cadeia produtiva no que se refere à utilização da água. O objeto de estudo é uma empresa brasileira de cosméticos. Os dados referentes aos indicadores de desempenho ambiental da empresa foram obtidos a partir do relatório anual da empresa disponibilizados no site institucional. Foi feita avaliação dos indicadores de desempenho ambiental referente ao tema água (GRI G4-EN8, GRI G4-EN9, GRI G4-EN10, GRI G4-EN22 e GRI G4-EN26) por meio da Trilha Geoecológica da empresa. Através das análises presentes nos relatórios e da interpretação da Trilha Geoecológica constatou-se que a empresa consome, recicla, reutiliza, trata a água e atende aos requisitos legais no que se refere aos parâmetros ambientais da água bem como ao seu modo de extração, uma vez que todos os parâmetros analisados estiveram dentro dos limites estabelecidos pela legislação. Assim, pode-se concluir que os indicadores de desempenho ambiental contribuem para uma análise da sustentabilidade empresarial, uma vez que é possível verificar através desses indicadores que existe um comprometimento da empresa na conservação da água, considerando o modo adequado de extração e a qualidade do efluente devolvido ao meio ambiente.
PEMBUATAN SIRUP TINGGI ANTIOKSIDAN BERBAHAN DASAR TEMPE DAN BROKOLI
Authors: Fathurrahman Muhammad Ikhwan , Heri Santoso Agus , Kristianto Yohanes , Dhenok Palupi Fitria
Published: August 2023

Diabetes melitus menyebabkan hiperglikemia yang berdampak buruk pada sel dan organ. Salah satu upaya untuk menanggulangi masalah komplikasi pada diabetes dapat dilakukan dengan pemberian minuman tinggi antioksidan. Brokoli, tempe dan bahan pendukung ikan gabus, serta kunyit adalah bahan pangan yang memiliki peran dalam meningkatkan sekresi insulin dan mengaktivasi insulin. Tujuan penelitian ini adalah membuat formula sirup tinggi antioksidan menggunakan bahan dasar brokoli dan tempe dengan penambahan ikan gabus, kunyit, dan madu sebagai minuman untuk diabetesi. Formulasi sirup dilakukan melalui penelitian laboratorium menggunakan rancangan acak lengkap. Sebagai perlakukan dalam formulasi adalah proporsi ekstrak brokoli dan tempe dengan perbandingan 90:10 (P1), 80:20 (P2), 70:30 (P3), 60:40 (P4). Bahan lain, yaitu ekstrak ikan gabus, kunyit, madu, dan maltodekstrin ditambahkan untuk mendapatkan karakteristik sirup yang baik. Mutu sirup dinilai berdasarkan aktivitas antioksidan produk akhir metode DPPH, kadar kromium, hasil uji hedonik, dan pemilihan perlakuan terbaik. Sirup antioksidan yang dihasilkan memiliki karakteristik seperti minuman berwarna kecoklatan, aroma sedikit langu, dan rasa yang manis. Sirup hasil formulasi mengandung kromium antara 61,404 – 91,1.6 ug/100mL dan aktivitas antioksidan 52-73%. Kadar kromium sirup telah memenuhi ketentuan BPOM dan EFSA. Kadar kromium dan aktivitas antioksidan sirup berkurang seiring dengan penurunan penggunaan ekstrak brokoli. Penggunaan tempe dalam formulasi meningkatkan mutu sensorik sirup. Formulasi sirup P4 terpilih sebagai taraf perlakuan terbaik. Sirup bagi diabetesi yang mengandung antioksidan dan kromium sesuai standar dapat dibuat dengan menggunakan ekstrak brokoli dan tempe menggunakan perbandingan 60:40.
Impact of Diabetic Lesions on Pathology, Treatment, and Outcomes of Glomerular Diseases
Authors: Kim Young Ho , Saha Manish K. , Hu Yichun , Kumar Srikar , Poulton Caroline J. , Hogan Susan L. , Nachman Patrick , Jennette J. Charles , Nast Cynthia C. , Mottl Amy K.
Published: August 2023

Key Points

People with glomerular disease (GD) and comorbid diabetes have similar baseline characteristics irrespective of superimposed diabetic lesions.

Immunosuppression for GD with comorbid diabetes is the same regardless of superimposed diabetic glomerular lesions.

ESKD or death is more rapid in GD and comorbid diabetes only in the presence of moderate-severe diabetic glomerular lesions.

Background

We aimed to evaluate whether concomitant diabetic glomerulosclerosis (DGS) and its severity affect the treatment and outcomes of primary glomerular diseases (GDs) with comorbid diabetes.

Methods

We conducted a retrospective review of people with diabetes and GD. We searched the GD Collaborative Network for biopsies from 2008 to 2015 among persons with diabetes and any of the following diagnoses: FSGS, IgA nephropathy, minimal change disease, membranous nephropathy, or antineutrophil cytoplasmic autoantibody GN. Data were abstracted from health records and histologic diabetic glomerular class scored. The primary composite end point was ESKD or death. Multivariable Cox regression models tested whether any or the severity of diabetes histopathology affected the primary end point.

Results

Data from 134 cases were available for analysis (78 DGS+GD and 56 GD alone). Diabetes duration and glycemic control were similar between the two groups (P = 0.2; P = 0.09, respectively). Use of immunosuppression did not differ between the two groups (P = 0.3). The composite end point was significantly higher in DGS+GD (22.5 cases per 100 person-years [95% confidence interval (CI), 16.6 to 30.5]) versus GD alone (10.2 cases per 100 person-years [95% CI, 6.4 to 16.2]). Regression analyses demonstrated that compared with the GD-alone group, the risk for the composite end point was similar in the group with mild DGS+GD (DGS class 1, 2a) (hazard ratio, 1.15 [95% CI, 0.54 to 2.43]) while the group with severe DGS+GD (DGS class 2b, 3, 4) had a greater risk (hazard ratio, 3.60 [1.79 to 7.22]).

Conclusions

Among people with diabetes and GD, mild diabetic glomerular lesions on biopsy do not affect outcomes, but moderate-severe lesions increase the risk for ESKD and death. Whether use of immunosuppression, particularly glucocorticoids, is less successful in inducing GD remission in people with moderate-severe diabetic lesions will be a focus of future study in a larger population.
A Distinct Nasal Microbiota Signature in Peritoneal Dialysis Patients
Authors: Khan Iman , Wu Sylvia , Hudson Anika , Hughes Clayton , Stryjniak Gabriel , Westblade Lars F. , Satlin Michael J. , Tedrow Nicholas , Uhlemann Anne-Catrin , Kraft Colleen , Dadhania Darshana M. , Silberzweig Jeffrey , De Vlaminck Iwijn , Li Carol , Srivatana Vesh , Lee John Richard
Published: August 2023

Key Points

Staphylococcus, Corynebacterium, Streptococcus, and Anaerococcus are the most common genera in the anterior nares.

The nasal abundance of Staphylococcus is inversely correlated with the nasal abundance of Corynebacterium.

Peritoneal dialysis patients have a distinctly diverse representation of Staphylococcus and Streptococcus in their anterior nares.

Background

The nasal passages harbor both commensal and pathogenic bacteria that can be associated with infectious complications. The nasal microbiome in peritoneal dialysis (PD) patients, however, has not been well characterized. In this study, we sought to characterize the anterior nasal microbiota in PD patients and assess its association with PD peritonitis.

Methods

In this study, we recruited 32 PD patients, 37 kidney transplant (KTx) recipients, and 22 living donor/healthy control (HC) participants and collected their anterior nasal swabs at a single point in time. We followed the PD patients for future development of peritonitis. We performed 16S ribosomal RNA (rRNA) gene sequencing of the V4–V5 hypervariable region to determine the nasal microbiota. We compared nasal abundance of common genera among the three groups using Wilcoxon rank-sum test with Benjamini–Hochberg adjustment. DESeq2 was also used to compare the groups at the amplicon sequence variant levels.

Results

In the entire cohort, the most abundant genera in the nasal microbiota included Staphylococcus, Corynebacterium, Streptococcus, and Anaerococcus. Correlational analyses revealed a significant inverse relationship between the nasal abundance of Staphylococcus and that of Corynebacterium. PD patients have a higher nasal abundance of Streptococcus than KTx recipients and HC participants. PD patients have a more diverse representation of Staphylococcus and Streptococcus than KTx recipients and HC participants. PD patients who concurrently have or who developed future Staphylococcus peritonitis had a numerically higher nasal abundance of Staphylococcus than PD patients who did not develop Staphylococcus peritonitis.

Conclusions

We find a distinct nasal microbiota signature in PD patients compared with KTx recipients and HC participants. Given the potential relationship between the nasal pathogenic bacteria and infectious complications, further studies are needed to define the nasal microbiota associated with these infectious complications and to conduct studies on the manipulation of the nasal microbiota to prevent such complications.
Self-awareness in the formation of the future music teacher’s scientific research culture
Authors: Victoria Tusheva
Published: August 2023

The purpose of the article is to highlight the functional characteristics of future music teacher’s selfawareness and worldview orientations as determinants of his scientific and research culture formation. Methods and methodology. The ideas of H.S.Kostyuka, S.D.Maksimenko, S.L.Rubinstein regarding the understanding of the ontology of mental phenomena, generalized by the principle of the unity of consciousness and activity, the development of professionally important qualities of the individual in the systemogenesis of activity; as well as the position of higher art education in relation to cultural, personality-oriented, systemic approaches as a methodological basis in revealing the peculiarities of the future teacher-musician’s self-awareness have acquired methodological significance for the selected issue. The scientific novelty of the article consists in illumination of the purpose of the professional worldview activity and in the context of the teacher-musician scientific research culture, the revealing of the essence of teachermusician self-awareness, the formation of which is manifested as support for its internal consistency and self-identity, the construction of conscious research and pedagogy; self-knowledge and search for the meaning of life through selfimprovement, self-understanding, self-education by means of research in the field of art education. The results. The theoretical-methodological aspects of the problem of future teachers-musicians’ scientificresearch culture formation are revealed, and in particular, issues regarding their self-awareness, semantic-forming and professional worldview activities. The scientific research culture of the future teacher-musician is defined as a dynamic, integrative quality of the personality, manifested in the ability to synthesize analytical-synthetic, inductive-deductive mental activity and emotional-figurative comprehension of musical art, the embodiment of scientific, pedagogical and artistic. application of scientific knowledge in pedagogical activity as a scientific-theoretical (explanatory) and constructive-technological (transformative) function. It is noted that the teacher’s self-awareness ensures the tension of his intellect, worldview intentions, social determinism of scientific research in musical and pedagogical education. It is emphasized that a particular importance of the researcher’s semantic-forming activity is acquired by the worldview, which is characterized by spiritual and aesthetic content and orientation, which is manifested as a valuable attitude to socio-cultural, educational and pedagogical processes through the prism of personal worldview. It was concluded that the result of the formation of future teacher-musician’s scientific and research culture is formed qualitative and instrumental properties of self-awareness, which ensure its functioning.
Форми та ознаки народного українського костюму і використання їх у сучасному дизайні одягу
Authors: Григорова Лариса
Published: August 2023

У статті розглянуто питання використання елементів народного українського костюму, його орнаментації в дизайні сучасного молодіжного одягу. Відзначено необхідність і важливість збереження й розвитку традицій в структурі національної культури, а також визначено можливості використання народних мотивів у створенні як дизайнерського одягу, так і моделей, призначених для масового виробництва. Виділено значення мистецтва народного костюму як творчого джерела. Обґрунтовано актуальність проектування і виготовлення сучасного костюму на основі вивчення національної спадщини України. Проаналізовано та конкретизовано історичний досвід використання елементів українського національного орнаменту в колекціях більшості вітчизняних та зарубіжних дизайнерів. Виділено два напрями використання форм та ознак народного українського костюму в сучасному дизайні одягу: 1) орнамент незмінно постає частиною декоративної структури костюму, іноді набуває статусу композиційного центру; 2) елемент орнаменту не є частиною оздоблювально-декоративної структури костюму, а лягає в основу самої силуетної форми. Виокремлено практичний досвід використання студентами (майбутніми дизайнерами) елементів традиційного декоративно-ужиткового мистецтва, що надає сучасним колекціям одягу естетичної виразності, оригінальності, рукотворної творчості й сприяє розвитку національної мистецької культури.
Шляхом аналізу колекцій сучасних дизайнерів та студентів кафедри дизайну було зроблено висновок про те, що народні мотиви досі залишаються актуальними в проектуванні сучасного одягу і багато модельєрів вдаються до використання етнічних мотивів. Дизайн сучасного костюму не може розвиватися у відриві від національних традицій. Досить важливо зберігати й розвивати традиції в структурі національної культури, а також визначати можливості використання народних мотивів у створенні як дизайнерського одягу, так і моделей, призначених для масового виробництва.