bluuebunny/crossref_metadata_2025 huggingface dataset:
Sexual Desire and Erotic Fantasies questionnaire: Development and validation of the Sexual Desire scale (SDEF1)
Authors: Nimbi Filippo Maria , Galizia Roberta , ciocca giacomo , Zimic Aleša Bratina , Jannini Emmanuele , Simonelli Chiara , Tambelli Renata
Published: December 2023

The main aim of the present study was to test the psychometric properties of the Sexual Desire and Erotic Fantasies questionnaire - Part 1 Sexual Desire (SDEF1), developed as a sex-positive measure of different sexual desire expressions. The SDEF1 was assessed with 1,773 Italian participants (1,105 women, 645 men, and 23 other genders). The final version showed a 6-factor structure including 28 items: sexual desire, negative feelings to sexual desire, autoerotic desire, regular partner desire, attractive person desire, and responsive desire. The SDEF1 revealed good psychometric properties such as internal reliability, construct, and discriminant validity, and has shown to be able to differentiate women and men with and without sexual dysfunctions/problems. Results of the current study seem to validate the idea that the SDEF1 could be a useful measure to assess different areas of sexual desire and its use could be recommended for clinical and research purposes.
Evaluation of the diversity and uniqueness of woody plant communities in park forests transformed form forest patches on urban hills
Authors: Ning Qu , Shilei Zhang , Wang Zhikang , Li Chunlin , Liangzhen Zhang , Sun Lintng , Zhiquan Cao , Qing Qin , Fan Peixian
Published: December 2023

In the process of urbanization, forest patches on hills are transformed into urban park forests, their functions changing from production to ecological and landscape. The diversity and uniqueness of plant communities support the ecological and landscape functions of parks, but there is a lack of indicators and methods to assess their uniqueness. We propose two evaluation indicators for woody plant community uniqueness in urban parks based on importance value (IV, the average of relative abundance, relative frequency, and relative dominance): the mean non-overlapping IV (MNIV) and the local contribution to beta diversity based on IV (LCBD1). Subsequently, we investigated and evaluated the diversity and uniqueness of woody plant communities in eight hill parks (Parks 1–8) in Qingdao. A total of 101 species were found, with an average of 23.88 ± 5.96 species per park. The Shannon-Wiener and Pielou indices were in the ranges of 1.42–3.13 and 0.48–0.91, respectively. Results from principal coordinate analysis and cluster analysis and the orders of MNIV and LCBD1 suggest that Parks 4 and 8 have the most unique woody plant communities. MNIV was significantly (P < 0.05) positively correlated with Shannon-Wiener and Pielou indexes, while LCBD1 was significantly (P < 0.05) positively correlated with local beta diversity based on species abundance. MNIV and LCBD1 were significantly (P < 0.05) negatively correlated with IV of Pinaceae and significantly (P < 0.05) positively correlated with IVs of Anacardiaceae, Cannabiaceae, and Ginkgoaceae plants. Therefore, diversities of woody plant communities from residual forest patches show great variations. The diversity and IVs of characteristic plants are key factors affecting uniqueness.
Continuously increasing e-scooter accidents and their possible prevention in a large European city
Authors: Frank Stefan , Sator Thomas , Kinsky Rudolf M. , Frank Julia K. , Frank Roland , Fialka Christian , Mittermayr Rainer , Boesmueller Sandra
Published: December 2023

Purpose
During the last few years, the number of electric scooter (e-scooter) users has risen to an all-time high. This study aimed to analyze e-scooter related accidents and trauma prevention measures in a large European city (Vienna, Austria).
Methods
This retrospective study comprises a thorough data assessment and analysis of all e-scooter related accidents between 2018 and 2021 at a large level 1 trauma center in Vienna. Based on the data analysis, risk factors were identified, and possible prevention strategies were proposed.
Results
During the observed period, 1337 patients sustained an injury from an e-scooter. Of these, 1230 were injured directly while driving (92%). The remaining 107 patients (8%) were classified as non-driving injuries. 927 injuries involved males (69.3%). The mean age was 32.1 years (range 4–86 years). Of all injured patients, 429 (32.1%) sustained at least one serious injury. The most common injuries included radial head fractures and concussions. Among the accidents treated, the use of protective equipment was sporadic. For example, helmets were worn in only 13.7% of cases. Wearing a helmet reduced the number of head injuries (24% versus 46.8%). In just three years, the number of patients increased 19-fold with a focus in the summer months.
Conclusion
This study shows a substantial and sustained increase in e-scooter accidents with potentially serious injuries. Helmet use was found to be an effective form of head injury prevention. Further options for using protective equipment should be evaluated to improve the safety aspects of riding e-scooters.
Construction and Validation of Sprinkler Pattern Radius Computational Model
Authors: Tuo Yunfei , Lu Qiwei , Liang Jiaping , Xiang Ping , Yang Qiliang , Li Jianqiang , He Xiahong
Published: December 2023

In ascertaining the sprinkler and micro-sprinkler computational approach. computing models of sprinkler pattern radius were generated in accordance with hydraulic parameters such as, nozzle diameter(E), working pressure(P), installation heights(D), jet angle of sprinkler flow(A), discharging coefficient(µ), wind direction(WD) and wind Speed (WS), water flow state, and motion of water droplets in the air, as well as accounted for Newton's second law of motion, aerodynamics, and fluid mechanics principles. Furthermore, it was confirmed that the empirical formula for the typical sprinkler pattern radius, which related E, P, A, D, WD, and WS. The results demonstrated a substantial correlation between the sprinkler pattern radius and E, P, D, A, μ, WD, WS, water flow regime, and droplet motion in the air, the sprinkler pattern radius increased in the downwind by 5.2342%-10.6278%, and decreased in the headwind by 4.6897%-9.8623% than the absence of wind, additionally, the direction of sprinkler pattern radius changed with the WD altered, meanwhile, sprinkler pattern radius dropped with WS increased. Between the calculated and measured values of the computational model, the r2(coefficients of determination), c(coefficient of concordance), RMSE(mean root square error), MBE(mean bias error), MAE(mean absolute error), and MRE(mean relative error) were 0.9146, 0.9205, 8.7748%, 10.4980%, 8.2524%, and 8.1421%, respectively, the computed values and measured values of computational model in wind had fewer r2 and c, as well as bigger RMSE, MBE, MAE, and MRE compared to no wind. This study's computational model features a straightforward concept, a wide range of influencing factors, full physical significance, high computational accuracy, a negligibly small error, and broad applicability, the sprinkler pattern radius as it changes can be accurately reflected by the computer model, this study offers theoretical support for estimating sprinkler hydraulic performance as well as technical backing for sprinkler irrigation system strategy and design, it has significance for promoting the sprinkler irrigation quality.
Empowering Dysarthric Communication: Hybrid Transformer-CTC based Speech Recognition System
Authors: R Vinotha , D Hepsiba , Anand Vijay
Published: December 2023

People suffering from speech disorders face various challenges in their ability to communicate effectively, and one of the conditions they may experience is dysarthria. Dysarthria is a motor speech disorder that impacts an individual's ability to speak due to difficulties in controlling the muscles responsible for speech production. People with dysarthria may experience difficulties with articulation, pronunciation, intonation, rhythm, and pace, resulting in a slow or slurred speech pattern that can be difficult to understand. Augmentative and Alternative Communication (AAC) aids that utilize speech recognition technology have emerged as an appealing solution to support communication for individuals with dysarthria. Automatic Speech Recognition (ASR) systems trained solely on normal speech data may not accurately recognize dysarthric speech due to variations in their speech patterns and accent differences. However, a significant challenge in training ASR systems for dysarthric speech is the limited availability of data. To overcome these challenges, a hybrid architecture using the Transformer and Connectionist Temporal Classification (CTC) approach is proposed in this work. The transformer architecture is effective in learning speech patterns using limited data due to its self-attention mechanism, while the CTC approach allows for direct mapping between input speech features and output character sequences without requiring explicit alignment information. This approach is especially beneficial for speech recognition in situations involving variations in speech patterns. A hybrid architecture is trained using UA speech corpus that allows it to focus on important features of the speech and capture the relationships between them, leading to more accurate speech recognition. The performance of the proposed ASR system shows a remarkable decrease in Word Error Rate (WER) up to 2.78% and 15.67% for individuals with dysarthria who have low and very low intelligibility, respectively.
Nanofibrilation of alkali-pretreated cellulose fiber using grinding treatment
Authors: Hwang Kyojung , Park Jisoo , Lee Danbee , Gwon Jaegyoung , Chun Sang-Jin , Lee Tai-Ju , Seo Jin-Ho
Published: December 2023

The aim of this study is to explore the effect of strong alkali-pretreatment on manufacturing cellulose nanofibril s(CNFs) with mechanical (grinder) treatment. The structural change (from cellulose I to cellulose II) and sharply reduction in the yield of hemicellulose component (xylose) of cellulose fibers (bleached kraft pulp) were observed after strong NaOH (20 wt.%) pretreatment. However, the differences depending on treatment time (1 h or 2 h) were not significant. The subsequent mechanical (grinder) treatment did not lead to any significant changes in the chemical composition, specifically the sugar contents, of the cellulose fiber. Morphological analyses showed that generated micro- and nano-fibers in the suspension were gradually decreased with increasing mechanical pass number. Also, the mean width of the nanofibers produced from alkali-pretreated pulp was relatively thicker than those from untreated pulp. UV-transmittance and turbidity results showed that alkali pretreatment and subsequent mechanical treatment led to an increase in the nanofibril content. Therefore, alkali pretreatment and subsequent mechanical grinding provide a promising method for the efficient and cost-effective production of CNFs.
Investigating the social factors shaping the relationship between child marriage and mental health: Lessons learned from a pilot survey in Zimbabwe
Authors: Shibani Farah , Gumbonzvanda Farirai , Gumbonzvanda Nyaradzayi , Marufu Kensington , Linjesa Latih , Mugaragumbo Hildah , Musara Loveness , Musara Ethel , Mandewo Jean , Mombeshora Solomon , Mushunje Mildred , Ismail Miriam , Magama Nokutenda , Burgess Rochelle A.
Published: December 2023

Purpose: In Zimbabwe, 1 in 3 girls are married before 18, yet no studies focus explicitly on the relationship between child marriage and mental health. We conducted a pilot survey (n=100) to investigate the associations between common social factors linked to early and child marriage including: age, number of children, education level, unwanted pregnancies, and main source of income, with mental health
Methods: Survivors aged 15-50 years completed researcher-facilitated surveys, which included the Shona Symptom Questionnaire (SSQ) and Patient Health Questionnaire (PHQ-9) and demographic questions adapted from the Zimbabwean DHS.
Results: 68% of participants met the cut off for diagnosis of common mental disorders (CMD) based on the SSQ. Our logistic regressions showed with an increase in age, survivors were 1.06 times more likely (p = 0.05, CI = 1.00, 1.13) to meet criteria for a CMD. We also found that those with unwanted pregnancies were 5 times more likely to meet criteria for CMDs (AOR= 5.33, p < 0.01, CI= 1.94, 14.63), in comparison with those with wanted pregnancies. Finally, we found family/partner income reduced the odds of depression by 84% (AOR= 0.16, p < 0.04, CI= 0.03, 0.90), in comparison with those with no income or had selected ‘own business/self’ as their main income source.
Conclusions: Findings suggest the value of longitudinal cohort studies in this population to identify the strategic point of intervention for survivors who face high risk for mental health disorders.
Evaluation of Oxidative Stress Parameters and Histopathological Changes Due to Simultaneous Exposure to Toluene and High Noise Level in Lung Tissue of Adult Male Rats
Authors: Beyrami Sona , Gharari Noradin , niri Hasan Hadadzadeh , Farhang Somayeh , Abbaszadeh Hojjat Allah , Mahmoudi Saeed , Fazlzadeh Mehdi
Published: December 2023

Background
Concurrent exposure to noise and toluene is a common occurrence in industrial environments. This study is conducted to evaluate oxidative stress parameters and histopathological changes when simultaneously exposed to loud noise and toluene.
Methods
For this purpose, 32 male Wistar rats in four experimental groups (n = 8 in each group) were used. 1- control group, 2- the group exposed to an 8 kHz octave band noise (100 dB) (8h/day), 3- the group exposed to toluene (500 ppm) (8h/day), 4- the group simultaneously exposed to noise (100 dB) and toluene (500 ppm) (8 h/day). In this study, DNA damage is evaluated by 8-hydroxy-2-deoxyguanosine (OHdG-8) concentration measurement using the ELISA kit, and lipid peroxidation (MDA) and glutathione (GSH) levels are determined throughout lung tissue.
Results
The results partially showed that concurrent exposure to loud noise and toluene could lead to pathological damage to rat lung tissue. Besides, the elevation of OhdG-8 levels and MDA production in the lung was observed, and on the other hand, the GSH level dropped during the simultaneous exposure.
Conclusions
The results of this study confirmed that the interaction of noise and toluene increases the accumulation of DNA oxidation products, and progressive morphological damage, and also weakens the antioxidant defense system in the rat lung tissues.
Emerging Technologies and Sustainability in Brazilian Ports and Terminals: An Analysis of the Current Situation
Authors: Resende Renilson José Silva , Cunha Darliane , Porte Marcelo de Santana , Oliveira Clóvis Bôsco Mendonça , Cutrim Sérgio Sampaio
Published: December 2023

In the face of the growing demand for maritime transportation in the global economic context, ports are under increasing pressure from stakeholders to enhance their operational effectiveness and address environmental issues such as air and water pollution and inherent energy and security challenges. The transition to smarter and environmentally responsible ports is perceived not only as a choice but a strategic necessity, considering the multifaceted demands of the current global landscape. The Sustainable Development Goals offer a comprehensive framework to guide this evolution. In the Brazilian context, this paper aims to explore the impact of emerging technologies on the sustainability of Brazilian port industry. The research explores how such technological advancements influence the sustainability of the Brazilian port sector, considering their potential to drive sustainable practices and enhance operational efficiency. The study focused on Brazilian ports and terminals with the highest cargo volumes, including a sample of 23 port entities. The methodology adopted consisted of content analysis of sustainability reports published by the study's companies. An analysis of the sustainability reports of Brazilian ports and terminals reveals a diversity of technologies in continuous application. Technologies such as cameras, radar systems, artificial intelligence, and vessel traffic services, among others, are assuming multifaceted roles encompassing environmental monitoring, maritime traffic management, operational optimization, and security assistance. These technological advancements bolster the efficiency and safety of port operations and contribute significantly to sustainability efforts by facilitating early issue detection and mitigating environmental impacts. Furthermore, they create a pathway for the integration of emerging technologies like the Internet of Things and machine learning, offering the promise of additional efficiency gains and innovative solutions within the port sector.
Quality assessments of the quality of dying and death by medical record review for patients dying in intensive care units in China
Authors: ZENG Jili , LIU wen , WANG Zaihua , XU Dandan , SUO Yaxi , HOU Ruitong , Dai Xiaojing , HU Fen
Published: December 2023

Objective: This study aimed to assess the intensity of life-sustaining therapies and end-stage symptom management within 24 hours preceding death among patients in the intensive care unit.
Methods: A retrospective analysis was conducted on the medical records of 131 deceased patients in the comprehensive intensive care unit of XXX hospital, spanning from January to June 2019.
Results: Among the patients examined, 76.33% received comprehensive life support until their demise, with the majority undergoing continuous life support measures. In the 24-hour period prior to their death, 76.34% of patients were intubated, 74.81% underwent invasive mechanical ventilation, 29.01% received cardiopulmonary resuscitation, and 19.85% underwent continuous blood purification. Furthermore, 87.02% of terminally ill patients were administered vasoactive drugs, while 56.49% utilized analgesics. The mean hospitalization expense totaled $2,724.11.
Conclusion: This retrospective analysis underscores the prevalent use of invasive treatments, even during the final stages of life among intensive care unit patients in mainland China. The quality of death in these cases appears suboptimal. Implementing appropriate strategies for the withdrawal of non-beneficial life-sustaining treatments and integrating active hospice care is imperative to improve end-of-life care for these patients.
Implications for Clinical Nursing: Employing a quantitative approach highlights the significance of evaluating both the measures and intensity of life-sustaining therapy, as well as the actual situation regarding end-stage symptom management within 24 hours before death among patients in the intensive care unit. This underscores the necessity for further research in this domain. The study's findings offer compelling evidence that advocates for the establishment of hospice programs aimed at enhancing the quality of dying and death among patients in mainland China.
River plastic transport and storage budget
Authors: Schreyers Louise J. , Emmerik Tim H.M. van , Huthoff Fredrik , Collas Frank P. , Wegman Carolien , Vriend Paul , Boon Anouk , de Winter Winnie , Oswald Stephanie B. , Schoor Margriet M. , Wallerstein Nicholas , Ploeg Martine van der , Uijlenhoet Remko
Published: December 2023

Rivers are one of the main conduits that deliver plastic from land into the sea, and also act as reservoirs for plastic retention. Yet, our understanding of the extent of river exposure to plastic pollution remains limited. In particular, there has been no comprehensive quantification of the contributions from different river compartments, such as the surface, water column, riverbank and floodplain, to the overall river plastic transport and storage. This study aims to provide an initial quantification of these contributions. We first identified the main relevant transport processes for each river compartments considered. We then estimated the transport and storage terms, by harmonizing available observations on surface, suspended and floodplain plastic. We applied our approach to two river sections in the Netherlands, with a focus on macroplastics (>= 2.5 cm). Our analysis revealed that for the studied river sections, suspended plastics account for over 96% of item transport within the river channel, while their relative contribution to mass transport is only 30-37% (depending on the river section considered). Surface plastics predominantly consisted of heavier items (mean mass: 7.1 g/#), whereas suspended plastics were dominated by lighter fragments (mean mass: 0.1 g/#). Additionally, the majority (98%) of plastic mass was stored within the floodplains, with the river channel accounting for only 2% of the total storage. Our study developed a harmonized approach for quantifying plastic transport and storage across different river compartments, providing a replicable methodology applicable to different regions. Our findings emphasize the importance of systematic monitoring programs across river compartments for comprehensive insights into riverine plastic pollution.
Impact of a tailored exercise regimen on physical capacity, systemic oxidative stress and plasma proteomic profile in patients affected by post-COVID-19 Condition (PCC)
Authors: Chowdhury Mohammad Mobarak H , Fontaine Marie-Noelle , Lord Sarah-Eve , Quenum Akouavi Julite Irmine , Limoges Marc-André , Rioux-Perreault Christine , Lucier Jean-François , Cliché Dominic O. , Levesque Dominique , Boisvert François-Michel , Cantin André M. , Allard-Chamard Hugues , Menendez Alfredo , Ilangumaran Subburaj , Piché Alain , Dionne Isabelle J. , Ramanathan Sheela
Published: December 2023

Background: Individuals affected by the post-covid condition (PCC) show an increased fatigue and the so-called post-exertion malaise (PEM) that led health professionals to advise against exercise although accumulating evidence indicates the contrary. The goal of this study is to determine the impact of a closely monitored 8-week mixed exercise program on physical capacity, symptoms, fatigue, systemic oxidative stress and plasma proteomic profiles of PCC cases.
Methods: Twenty-five women and men with PCC were assigned sequentially to exercise (n = 15) and non-exercise (n = 10) groups. Individuals with no PCC served as a control group. The exercise program included cardiovascular and resistance exercises. Physical capacity, physical activity level and the presence of common PCC symptoms were measured before and after the intervention. Fatigue was measured the day following each exercise session. Plasma and PBMC samples were collected at the beginning and end of the training program. Glutathione and deoxyguanosine levels in PBMC and plasma proteomic profiles were evaluated.
Results: Bicep Curl (p=0.040) and STS-30 (p=0.043) improved to a greater extent in the exercise group than in the non-exercise group. An interaction effect was also observed for the level of physical activity (p=0.007) with a positive effect of the program on their daily functioning and without any adverse effects on general or post-effort fatigue. After exercise, glutathione levels in PBMCs increased in women but remained unchanged in men. Discernable changes were observed in the plasma proteomics profile with certain proteins involved in inflammatory response (SA100A8) decreasing in the exercise group.
Conclusions: Supervised exercise adapted to the level of fatigue and ability is safe and effective in PCC patients in improving their general physical capacity and wellbeing. Systemic molecular markers that accompany physical improvement can be monitored by analyzing plasma proteomics and markers of oxidative stress. Large-scale studies will help identify promising molecular markers to objectively monitor patient improvement.
Reproduza: modelo extensionista em reprodução de ruminantes
Authors: RAUBER Lucio Pereira , AMARAL Diullay Cássia Venâncio , BRINGHENTI Carlos , SECCHI Raissa Simioni , PEREIRA Eric Davi de Oliveira dos Santos , DE CESARO Matheus Pedrotti
Published: December 2023

O presente relato descreve as ações realizadas pelo programa de extensão “Reproduza” entre 2022 e 2023. Além da curricularização de extensão, foram realizados atendimentos a propriedades e no próprio campus de Concórdia do IFC com difusão de tecnologia, participou-se de eventos técnico-científicos e foram organizados cursos e simpósios para capacitação técnica de discentes e técnicos e foi firmada uma cooperação técnica entre a EPAGRI e o IFC que resultou em um Centro de Referência Técnica em Bovinocultura de Corte (CRTC) para servir de modelo a pequenas propriedades. Esse relato mostra que a extensão rural pode se apresentar de várias formas, e que é parte integral da pesquisa e do ensino.
Effects of Plasticiser on the Morphology and Swelling Properties of Cellulose-based Hydrogels Derived from Wastepaper
Authors:   Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Sarawak, Kampus Mukah, K.M 7.5 Jalan Oya, 96400 Mukah, Sarawak, Malaysia, Mohamed Bebe Norlita , Chin Suk Fun ,   Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia, Wasli Mohd Effendi ,   Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia
Published: December 2023

Cellulose was successfully extracted from wastepaper with a pre-treatment using sodium hydroxide (NaOH) and hydrochloric acid (HCl). The cellulose was then used to fabricate two types of hydrogels: cellulose/carboxymethyl cellulose (CMC)/polyvinyl alcohol (PVA) and cellulose/CMC/glycerol. Epichlorohydrin, an ECH solution was used as a cross-linker for the fabrication of both types of hydrogels. NaOH/urea/ultrapure water (NU) solutions were used to dissolve all the materials needed for the formation of hydrogels. The attenuated total reflectance-Fourier transform infrared (ATR-FTIR) showed the presence of hydroxyl group (O-H), hydrocarbon group (C-H) and carbonyl group (C=O) stretching. Scanning electron microscope (SEM) showed different porosities for both types of hydrogels, while the equilibrium swelling, swellingeq of cellulose/CMC/ PVA hydrogels were better compared to the cellulose/CMC/glycerol hydrogels. The highest swellingeq was found for the cellulose/CMC/PVA hydrogel (3/3/4 ratio), CCP334 with 6.33 g/g, while the lowest swellingeq (g/g) was obtained from the cellulose/CMC/ glycerol hydrogel (3/2/5 ratio), CCG325 with 1.49 g/g.
A Kinetic Study of Oxidation of New [Co(L)2(H2O)2] Complex by N-bromosuccinimide (NBS)
Authors:   Physical Chemistry, Faculty of Pharmacy, Egyptian Russian University, 11829 Cairo, Egypt, Ellakwa Takwa E. , Basry A. A. H. ,   Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Sinai University, 16020 North Sinai Governorate, Egypt, Abu El Hassan Sawsan M. ,   Department of Chemistry Science, Faculty of Science, Arish University, 45511 Al-Arish, Egypt
Published: December 2023

The kinetics of the oxidation of the [Co(L)2(H2O)2] complex by N-bromosuccinimide (NBS) in aqueous media (L = bidentate ligand mono deprotonated anion derived from methyl salicylaldehyde and sulfacetamide) were investigated over a pH range of 4.2–5.4, temperatures ranging from 25°C to 40°C, and an ionic strength of 0.1 mol/l–0.4 mol/l for both NBS and complex concentrations. The reaction rate over the studied pH ranges was predicted to be first order NBS and complex dependent and to rise with decreasing [H+]. It was compatible with the experimental rate law to say that a process in which the complex’s dehydrogenated form is greater reactivity compared to its conjugate acid. Acrylonitrile polymerisation was tested for its abundance of free radicals in the reaction admixture. It was supposed that transfer of electrons and formation of initial cobalt(III) products, which were eventually were tardily transformed into the final cobalt(III) products, occurred by an inner-sphere mechanism.
Enhanced Characterisation Studies and Synthesis of Undoped and Copper Doped-Organic Nonlinear Optical Single Crystal: L-Alanine Aluminium Nitrate
Authors:   Department of Chemistry, Kamla Nehru Institute of Physical and Social Sciences, Sultanpur-228118, India, Pandey Anand Kumar , Pratap Singh Raghvendra ,   Department of Chemistry, Kamla Nehru Institute of Physical and Social Sciences, Sultanpur-228118, India, Jawhari Ahmed Hussain ,   Department of Chemistry, Faculty of Science, Jazan University, P.O. Box 2097, Jazan, Saudi Arabia, Singh Ritu ,   Department of Chemistry, S.S.V. P.G. College, Hapur-245101, India
Published: December 2023

Single crystals of untreated and copper (Cu2+) metal ion-doped L-alanine aluminium nitrate (LAAN), a room-temperature slow evaporation organic nonlinear optical material. Single crystals were studied for structural, spectral, optical, hardness, secondorder non-linear optical, electrical [(alternating current (AC) and direct current (DC)], and photoconductivity properties as they grew. Crystallinity, monoclinic structure with space collection P21, and lattice specifications were deliberate using single crystal X-ray diffraction investigation. The existence of functional clusters is revealed by the spectral properties, and the means of vibration of various molecular clusters existing in LAAN were evaluated using Fourier transform infrared (FTIR). The low cut-off wavelength and transmittance properties were determined using optical analysis. The band gap energy of LAAN and Cu-doped LAAN crystals was estimated to be 3.40 eV and 2.70 eV, respectively, using the Tauc plot. It was revealed that pure crystals had a lower dielectric constant than crystals that had been doped with copper. After doping with rising temperatures, AC conductivity started to rise. With the use of the Kurtz and Perry approach, the effectiveness of the grown crystal’s second harmonic generation was computed, Cu-doped LAAN was discovered to be 3.3 times more prominent than potassium dihydrogen phosphate (KDP) and 2.2 times more prominent than pure LAAN crystals. The nonlinear optical characteristics of LAAN crystals have therefore been improved by copper doping. It is most suited for use in electro-optic applications like laser technology, telecommunications and optical signal processing because of its negative photoconductivity.
Temperature and compositional dependences of H2O solubility in majorite
Authors: Liu Dan , Purevjav Narangoo , Fei Hongzhan , Withers Anthony C. , Ye Yu , Katsura Tomoo
Published: December 2023

We systematically investigated H2O solubility in majorite as a function of temperature from 1670–2270 K under a pressure of 20 GPa using multi-anvil techniques. The H2O solubility in majorite decreases with increasing temperature. In addition, the H2O content is relatively independent of the concentrations of Al2O3 and SiO2 in majorite. Majorite can store more H2O than bridgmanite in the lower mantle. Therefore, when a slab sinks into the lower mantle, hydrous melt could be produced not only by the phase transformation from ringwoodite to bridgmanite + ferropericlase near 660 km depth but also by the majorite to bridgmanite transformation over a wide range of depths from 660 km up to ~800 km, at which majorite dissolves completely in bridgmanite.
Development of self-regulation scale for middle school students: Validity and reliability study
Authors: SARİKAYA İsmail , ÖZTÜRK Mesut , ÖZGÖL Mustafa
Published: December 2023

This study was conducted to develop a valid and reliable measurement tool that can identify middle school students’ self-regulation skills. Firstly, the literature was utilized in the development of the measurement tool. The form was finalized with the support of the opinions of different experts and a trial application. Then, the form was administered to 341 middle school students to determine its construct validity, and exploratory factor analysis (EFA) was performed on the collected data. Then, the form was administered to 341 middle school students to determine its construct validity, and exploratory factor analysis (EFA) was performed on the collected data. As a result of the study, it was determined that the scale consisted of 9 items and two sub-dimensions, namely “forethought” and “volitional control and self-reflection.” In order to reveal the reliability of the scale, internal consistency, two-half test analyses, and composite reliability (CR) were used, and it was determined that the values found were .74 and above. In order to reveal the accuracy of the obtained structure, data were collected from 218 middle school students in a different province, and confirmatory factor analysis (CFA) was performed with these data. As a result of the analysis, the two-factor structure of the scale was confirmed. When the findings are examined, it can be said that the scale is a reliable and valid tool that can be applied to determine the self-regulation skills of students studying at the middle school level.
PENERAPAN MESIN PENGERING TIPE RAK BERBASIS TEKNOLOGI INFRARED BURNER UNTUK PENINGKATAN HASIL OLAHAN BUNGA TELANG PADA INDUSTRI RUMAH TANGGA
Authors: Rizal Reda , Fahrudin Fahrudin , Sembiring Rosali Colia , Martana Budhi
Published: December 2023

Pemberdayaan berbasis masyarakat yang dilaksanakan pada industri rumah tangga di Desa Ciantra merupakan bentuk pengabdian insan dikti pada kelompok Masyarakat dalam memproduksi produk olahan berbasis bunga telang. Permasalahan yang dihadapi mitra, yaitu proses pengeringan bunga telang masih dilakukan secara konvensional dengan dijemur di bawah sinar matahari, dan proses pengeringan membutuhkan waktu yang cukup lama terutama pada saat musim penghujan. Solusi yang dapat ditawarkan untuk mengatasi permasalahan tersebut dengan penerapan dan bantuan mesin pengering berbasis teknologi infrared burner. Tujuan kegiatan program pemberdayaan kemitraan masyarakat adalah untuk melaksanakan transfer teknologi pada industri rumah tangga serta meningkatkan mutu produk bunga telang. Tahapan kegiatan yang digunakan dalam pelaksanaan program pemberdayaan kemitraan masyarakat ini sosialisasi, penerapan mesin pengering, cara penggunaan alat pengering, pendampingan, dan evaluasi. Hasil yang dicapai melalui program ini, yaitu mitra mampu memahami tentang proses pengringan bunga telang, terampil dalam melakukan proses pengeringan bunga telang menggunakan inovasi teknologi yang telah diberikan, dan tersedianya alat pengering berbasis teknologi infrared yang dapat dimanfaatkan mitra dalam meningkatkan hasil pengeringan bunga telang.
INVESTIGASI DAN MITIGASI STRUKTUR BANGUNAN SEKOLAH AKIBAT GEMPA BUMI CIANJUR
Authors: Kristianto Anang , Wiyono Daud R , Setiawan Deni , Suhendra Andrias , Pranata Yosafat Aji
Published: December 2023

Gempa bumi merupakan bencana alam yang tidak terduga dan dapat menyebabkan kerusakan parah pada bangunan, terutama yang tidak memenuhi standar. Pembangunan gedung sarana pendidikan, dalam hal ini gedung sekolah, di wilayah Indonesia yang terletak di daerah rawan gempa perlu mendapat perhatian khusus. Gempa Cianjur yang terjadi pada tahun 2022 mengakibatkan kerusakan pada beberapa gedung sekolah di wilayah terdampak. Kegiatan pengabdian kepada masyarakat ini menginvestigasi 9 gedung SMP dan 5 gedung SD di wilayah Kabupaten Cianjur yang mengalami kerusakan ringan hingga berat sehingga harus segera diperbaiki atau diperkuat. Kegiatan ini bekerja sama dengan instansi pendidikan dan personel sekolah Pemerintah Daerah Cianjur yang terkena dampak gempa. Hasil pemeriksaan visual terhadap gedung sekolah tersebut menunjukkan kerusakan dengan tingkat sedang hingga parah dan memerlukan tindakan segera, mengingat Cianjur memiliki risiko gempa yang tinggi. Perbaikan dan perkuatan dapat dilakukan sesuai dengan tingkat kerusakannya, mulai dari penambahan kolom baru untuk balok yang mengalami defleksi berlebihan akibat dimensi yang tidak memenuhi syarat atau penambahan tulangan dengan menggunakan FRP (Fiber Reinforced Polymer). Sedangkan pada kolom yang dimensinya tidak memenuhi persyaratan dapat dilakukan penambahan dimensi (pelapis beton) meskipun tidak terjadi kerusakan berarti secara visual selama penyelidikan.
DESAIN APLIKASI DIGITAL PADA PELAYANAN PERLAWATAN JEMAAT GKI DELIMA
Authors: Yudhi Windarto  , Benisius  , Wiryasaputra Rita , Sevani Nina , Putro Endi
Published: December 2023

Transformasi digital dalam pelayanan perlawatan jemaat gereja menjadi tantangan bagi GKI Delima dimana terdapat permasalahan pada akurasi data, koordinasi dan proses pelaporan. Penggunaan teknologi tepat guna dapat menjadi solusi terbaik untuk mengatasi permasalahan yang ada. Tujuan dari program pengabdian masyarakat ini adalah untuk mengembangkan aplikasi berbasis Android untuk meningkatkan proses pelayanan perlawatan gereja di GKI Delima. Tahapan pelaksanaan kegiatan ini dimulai dari tahap perencanaan, perancangan dan pengembangan serta pelaksanaan. Pengembangan aplikasi mengacu pada model pengembangan RAD (Rapid Application Development) dengan menggunakan Android Studio. Hasil pengembangan mobile apps jemaat GKI Delima sebagai bagian dari proses transformasi digital mampu meningkatkan kualitas proses perlawatan jemaat menjadi lebih efektif dan efisien. Proses penjadwalan dan koordinasi menjadi lebih cepat dan mudah. Data lebih mudah diakses dan lebih cepat dalam proses pemutakhiran data. Proses pelaporan dan pendokumentasian hasil kunjungan jemaat menjadi lebih mudah, cepat, aman, dan paperless. Proses transformasi digital dalam pelayanan perlawatan jemaat di GKI Delima memberikan dampak positif terhadap peningkatan kualitas proses perlawatan jemaat menjadi lebih mudah, cepat dan aman..
Validation and measurement uncertainty of the determination of 24 elements in drinking water using ICP-MS
Authors: Kilic Murat
Published: December 2023

In this study, the concentrations of 24 elements, which are suspicious to be found in drinking and utility waters for the province of Antalya/Turkey, were determined using an inductively coupled plasma-mass spectrometer (ICP-MS). Validated methods with a low limit of detection are required to analyze such waters. The method was validated considering selectivity, limits of detection and quantification, sensitivity, linearity, operating range, accuracy, precision, and measurement uncertainty. All monitored isotope calibration plots had a correlation coefficient of 0.9994 or higher. According to the results of recovery, the expected results of all element isotopes were determined in the range of 94–104%. The average precision quantities for items were calculated as percent relative standard deviation (%RSD) between 0.10 and 2.31%. The analytical method provided here for detecting the concentrations of 24 elements in drinking water samples with demonstrated traceability and estimated uncertainty can yield reliable and internationally comparable results.
Enhancing floc size and strength with a hybrid polymer of zinc oxide, acrylamide, and tannin in textile wastewater
Authors: Ishak Siti Aisyah , Murshed Mohamad Fared , Zainol Mohd Remy Rozainy Mohd Arif , Kamal Nurul Hana Mokhtar
Published: December 2023

This study involved synthesising new hybrid polymers called ZOPAT, made up of zinc oxide, acrylamide, and tannin, using a blended technique. The effectiveness of ZOPAT in treating textile wastewater was then tested by measuring floc growth rate, flocculation index, strength factor, and recovery factor under optimised conditions. The study also identified the zeta potential, morphology, elemental composition, and functional groups of the polymers. Response surface methodology determines the optimal pH and ZOPAT dose, resulting in 93% colour, 80% chemical oxygen demand (COD), 100% turbidity, and suspended solids (SS) removal at pH 9.22 and 737 mg/L ZOPAT. The study found that ZOPAT was more effective than commercial Polyaluminium chloride in reducing colour and COD, producing larger and stronger flocs, and requiring a shorter coagulation time of 17.5 min. ZOPAT was also easy to homogenise and operate due to its one-unit dosing system. The study attributes the success of ZOPAT to the presence of Zn, N, and K, which create electrostatic attraction with opposite charged particles, and the formation of dye–particle–dye with amide, hydroxyl, and carboxyl groups in ZOPAT, which remove colour, turbidity, COD, and SS. Overall, the study concludes that ZOPAT has significant potential for textile wastewater treatment.
COMPARISON WITH THE RADIATION SAFETY LIMITS OF THE DOSE VALUES TO CRITICAL ORGANS OF THE HUMAN BODY IN LONG-TERM MISSIONS TO ORBITAL STATIONS MIR AND ISS
Authors:   Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Shafirkin A.V. , Benguin V.V. ,   Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Shurshakov V.A. ,   Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow
Published: December 2023

We analyzed the averaged through the year power of local tissue absorbed doses measured by the standard instruments over 15 years of station Mir operation (28 missions) and analogous data over 22 years of the International space station (ISS) operation (67 missions) within solar cycles (SCs) 22–25. This is a huge set of daily measurements of dosimeters R-16 (ioinization chamber D2) and 4 semiconductor dosimeters DB-8, located in different compartments. We also present the experimental and calculated absorbed and equivalent doses to the skin, lens and hematopoietic system (HPS) received within a day and year in space. It was found that in all Mir and ISS missions the equivalent doses to these tissues were below the limits adopted for orbital missions. In many missions of 6 to 8 months, the effective and equivalent doses to the CNS, lens and skin did not exceed even the lower dose limits prescribed by Russian radiation safety standard NRB-99/2009 for nuclear industry. Maximal equivalent dose values to the lens and skin in a year-long mission did not exceed 404 mSv. These values are less than the existing limits for space missions by 32 % for the lens and 5 times for the skin.
globalización de la censura
Authors: Cárdenas López Alejandro
Published: December 2023

El objetivo es analizar las reacciones de Occidente ante la operación especial militar de Rusia en Ucrania, como sanciones económicas y mediáticas. Desde una perspectiva documental analítico-interpretativa, se revisan los argumentos de Europa y Estados Unidos, la reacción de Rusia y de otros actores. La rapidez de los bloqueos implica una nueva tendencia internacional en la que se equiparan restricciones históricas en línea y contra RT y Sputnik. En los resultados se hace un análisis de las políticas de comunicación durante 2022, que se complementa con un examen de contenido de los medios globales implicados. Desde los estudios de periodismo y la economía política de la comunicación, se detectan nuevas formas de censura en los medios digitales. Se concluye que nuevos términos se están implementando y van complicando sus esquemas de eliminación de información y de relaciones con los usuarios.
Antecedentes Biológicos de Cryphiops caementarius (Mol., 1782) en el Estero "El Culebrón" (Crustácea, Decápoda, Palaemonidae)
Authors: Norambuena C. Raúl
Published: December 2023

Se estudian aspectos biológicos del camarón de río, C. caementarius (Mol, 1782). Mensualmente, entre septiembre de 1972 y junio de 1973, se colectaron ejemplares en el Centro de Cultivos de Camarones El Culebrón, Provincia de Coquimbo.Se analizaron 1.184 machos y 1.205 hembras.Las observaciones realizadas se refieren a: Comportamiento, talla mínima de madurez sexual, período de desove, fecundidad y algunos aspectos del desarrollo del huevo y la larva. Estructura poblacional y relación largo cefalotorácico versus peso.Se incluye, además, un breve análisis de variables abióticas.
Ruling Violently
Authors: Sampó Carolina , Jenne Nicole , Ferreira Marcos Alan
Published: December 2023

This article analyzes the criminal governance exercised by the Mexican criminal organ­ization Cartel Jalisco Nueva Generación (CJNG), contributing to the scarce information available on this topic. Specifically, we ask how the CJNG has exercised territorial control to ensure the operation of its businesses, mostly concentrated in the production and sale of illegal drugs. Based on a small number of existing studies and publicly available information, we argue that the CJNG relies on a dual system of territorial control consisting of the prioritization of violent coercion vis-à-vis its opponents together with a discourse of protecting Mexicans sustained by selected initiatives to provide security and other basic services to the population to gain legitimacy. This combination has allowed the cartel to grow and expand rapidly over the last decade.
Industrial practice platform based on work-based learning: A solution to improve student competence
Authors: Suyitno Suyitno , Jatmoko Dwi , Primartadi Aci , Ab-Latif Zahidah
Published: December 2023

This study aims to (1) Develop a work-based learning-based industrial practicum platform; (2) Know the feasibility of a work-based learning-based industrial practicum platform; and (3) Know whether there is an effectiveness of student learning with a work-based learning-based industrial practicum platform. This type of research is Research and Development (RD) with the Four-D model, and the research subjects are class C students as an experimental class with a total of 21 students and class B students as a control class with a total of 22 students. Data collection uses a questionnaire method to determine the feasibility of the media used for research and written test questions in the form of multiple choice with a total of 20 questions. The data analysis test used a normality test, homogeneity test, and t-test. The research data showed that: (1) The procedure for developing practical learning media based on work-based learning includes the defining stage, planning stage, development stage, and dissemination stage; (2) Work-based learning media is feasible to use as a learning media in light vehicle electrical maintenance subjects. This can be proven from the validation results of media expert lecturers who showed 82.50% of the score indicating valid criteria. Validation by material expert lecturers showed 78.75% of the score obtained, indicating quite valid criteria; and (3) The t-test results (t-count = 6.021 and p = 0.000) prove that the work-based learning-based practicum platform made is effective for improving student learning outcomes. This is shown through the response of trial students, which includes small group trials, obtaining 77%, which includes five students, and large group trials, obtaining 80.50%, which includes 15 students. The normality test obtained p = 0.059 in the control class and p = 0.115 in the experimental class because p 0.05 indicates that both groups are normally distributed. Through the homogeneity test, F count = 0.762 with p = 0.388 because p 0.05, the two groups have homogeneous variants. Thus, the industrial platform practice based on work-based learning can improve student learning outcomes.