bluuebunny/crossref_metadata_2025 huggingface dataset:
Perancangan dan Analisis Tekno Ekonomi PLTS On-Grid System sebagai Supply Energi Listrik Masjid Al-Istiqamah Politeknik Negeri Jember
Authors: Argo Tri Winnarni  , Risse Entikaria Rachmanita
Published: November 2024

The increasing energy demand is directly proportional to the growing population and technological advancements. The energy needs in Indonesia largely rely on fossil fuels, which are limited and environmentally unfriendly due to their emission characteristics. The potential of solar energy in Indonesia is around 4.8 kWh/m2, making it a renewable and environmentally friendly energy source that can be utilized for Solar Power Plants (PLTS). The aim of this research is to design an on-grid PLTS system and conduct techno-economic analysis using PVSyst software. This design requires 14 Longi Solar/LR5-72HPH-550M solar panels and 1 Huawei SUN2000-6KTL-M1 inverter. The estimated electricity production is 10,852 kWh/year in the first year. The initial investment cost for this PLTS system is Rp. 120,343,517.00, with estimated savings over 25 years amounting to Rp. 270,115,412.00. Economically, based on the feasibility analysis using the LWBP tariff calculation method, the NPV is Rp. 2,174,707.00, BCR is 1.68, and PBP is 11.8 years. Meanwhile, based on the feasibility analysis using the LCoE calculation method, the NPV is Rp. 74,877,690.00, BCR is 2.61, and PBP is 7.5 years. Based on the conducted research, the construction of this PLTS is deemed feasible to be implemented.
Sistem Otomatis Penyimpanan Data Pendeteksi Fase Pelanggan Tegangan Rendah
Authors: Anang Dasa Novfowan  , Mochammad Mieftah  , Slamet Nurhadi
Published: November 2024

Inaccurate phase detection due to manual data recording often led to errors, impacting load balancing processes in electrical distribution. This research aimed to develop an automated phase detection system for low-voltage customers, utilizing a MicroSD-Card for data storage to reduce human error and enhance data reliability. The device used Power Line Carrier (PLC) communication technology integrated with customer identity (ID PEL) and employed Arduino Uno for phase data processing. The research method involved designing and testing phase detection and data storage functions across various distances to assess system accuracy. Findings indicated the system accurately detected customer phases and stored data efficiently, with minor delays only at longer distances. This automated solution effectively minimized manual errors in phase data entry. Future applications of this system could significantly improve load balancing accuracy and data management in electrical distribution networks
Perancangan Prototype Monitoring dan Akuisi Data Pengujian Noise Trafo Berbasis ESP32
Authors: Fitri  , Siradjuddin Indrazno , Permatasari Dinda Ayu , Wahono Wahyu Tri , Albastomi Abu Yazid
Published: November 2024

The noise level on the transformer is very important to be considered, because it can cause problems if it does not meet the standards. Excessive noise can violate regulations set by the Ministry of Environment regarding noise limit thresholds, In addition, excessive noise also indicates an indication of a bad transformer construction and will result in the performance of the transformer itself. PT Trafoindo Prima Perkasa, as one of the largest and first transformer manufacturers in Indonesia, tests every transformer produced, including its noise level, The testing is conducted in the Quality Check division. However, testing that is still done manually often causes queue buildup in the production line, along with the increasing demand, especially from PLN, a faster testing process is needed but still meets the set standards. Therefore, a faster, safer, and more efficient testing method is needed to support a continuous production. Based on this requirement, the author designs a prototype monitoring system and data acquisition of ESP32-based transformer noise testing to help speed up and simplify the testing process, so that the finished product can be sent immediately without reducing the quality and standards that have been set.
FONOAUDIOLOGÍA EN ESCENARIOS EDUCATIVOS POBLACIÓN SORDA: EXPERIENCIAS EN AULA DE SORDOS
Authors: Martínez López Claudia Marcela
Published: November 2024

El objetivo principal del IBERO REPORT se centra en exponer las experiencias obtenidas por practicantes del programa de fonoaudiología, a través de un escrito narrativo con el fin de dar una percepción en escenarios educativos con población sorda. Dentro de este escenario encontramos el aula de sordos el cual está dirigido por docentes sordos, mediadores y modelos lingüísticos, quienes cumplen un rol determinado para el desarrollo de los procesos académicos de cada estudiante. De acuerdo con Rita Flórez (2004) el rol del fonoaudiólogo en educación es la “Prevención de desórdenes comunicativos, promoción del bienestar comunicativo, identificación de estudiantes con desórdenes comunicativos o en riesgo de padecerlos, evaluación, diagnóstico e intervención, dentro y fuera del aula de clase, consejería a padres y cuidadores, asesoría a maestros y otros profesionales, e investigación” a partir de esto se realizaron funciones fonoaudiológicas con población sorda dirigida a observación, evaluación e intervención con el fin de lograr el propósito fonoaudiológico dentro del aula.
CIENCIA, TECNOLOGÍA E INNOVACIÓN UN ANÁLISIS FRENTE AL CONTEXTO ACTUAL
Authors: CASTRO RICO MARÍA ALEXANDRA
Published: November 2024

Mucho se ha dicho respecto a la ciencia, tecnología e innovación como motor de la economía, desde que los países desarrollados se dieron cuenta que estos factores son fundamentales para el desarrollo y crecimiento económico, la Unión Europea se dio cuenta que el fortalecimiento económico debía darse desde este pilar, por lo que decidieron financiar el desarrollo científico y tecnológico para mejorar sus procesos productivos y así posicionarse como uno de los bloques más competitivos en el mercado internacional, en comparación a otros continentes o bloques económicos como el de América latina o el continente africano que no se han podido desarrollar de manera efectiva y eficiente en este tema. Los países en vía de desarrollo deberían beneficiarse de estos factores si lo financian de manera adecuada, puesto que muchos de estos países cuentan con grandes recursos para la producción y si se implementa métodos científicos y tecnológicos podría ser aún más productivos, por medio de la diversificación de productos, y es allí donde podrían entrar a competir en el mercado internacional
ENVEJECIMIENTO Y DISFAGIA ¿PUEDE EL ENVEJECIMIENTO AFECTAR NUESTRO PROCESO DE ALIMENTACIÓN?
Authors: MORENO PÉREZ LISBEY
Published: November 2024

La deglución según Cámpora (2017), es un proceso complejo y estructurado que implica multitud de estructuras musculares, óseas y cartilaginosas que actúan en perfecta coordinación gobernada por el sistema nervioso central. Dicho proceso puede verse afectado por diferentes factores internos y externos del ser humano que pueden estar relacionados con el proceso de envejecimiento.
Indigenous knowledge in climate adaptation planning: reflections from initial efforts
Authors: Ciocco Tony W. , Miller Brian W. , Tangen Stefan , Crausbay Shelley D. , Oldfather Meagan F. , Bamzai-Dodson Aparna
Published: November 2024

There are increasing calls to incorporate indigenous knowledge (IK) into climate adaptation planning (CAP) and related projects. However, given unique attributes of IK and the positionality of tribal communities to scientific research, several considerations are important to ensure CAP efforts with IK are ethical and effective. While such topics have been thoroughly explored conceptually, incorporation of IK into CAP is a nascent field only beginning to report findings and improve science production and delivery. Based on recent work with Ute Mountain Ute (UMU) resource managers and knowledge holders, we reflect on key considerations for incorporating IK into CAP: the importance of sustained and multi-level tribal engagement, operational approaches to IK incorporation, cross-cultural challenges with risk-based approaches, and how CAP can support existing tribal priorities. We hope exploring these considerations can help set appropriate expectations, promote ethical interactions, and increase the effectiveness of tribal CAP and related efforts.
Case Report: One-stop procedure for atrial fibrillation patients with dextrocardia
Authors: Chungyun Lin , Kaijun Cui
Published: November 2024

We present the case of an elderly woman with congenital dextrocardia who experienced severe palpitations. An electrocardiogram revealed paroxysmal atrial fibrillation, and her medical history unveiled cerebral infarction and renal failure. In the treatment of paroxysmal atrial fibrillation, anticoagulation is a key requirement. Although non-vitamin K antagonist oral anticoagulants are recommended by guidelines, their efficacy is compromised in patients undergoing dialysis due to renal metabolism. In addition, warfarin may cause fluctuations in international normalized ratio, which is not conducive to controlling symptoms of cerebral infarction. To improve the patient's quality of life, we focused on addressing the unique challenges posed by dextrocardia in a one-stop procedure.
Exploring mechanisms of skin aging: insights for clinical treatment
Authors: Zhang Meiqi , Lin Yumeng , Han Zhongyu , Huang Xuewen , Zhou Shuwei , Wang Siyu , Zhou Yan , Han Xuan , Chen Haoran
Published: November 2024

The skin is the largest organ in the human body and is made up of various cells and structures. Over time, the skin will age, which is not only influenced by internal factors, but also by external environmental factors, especially ultraviolet radiation. Aging causes immune system weakening in the elderly, which makes them more susceptible to dermatosis, such as type 2 inflammatory mediated pruritus. The immune response in this condition is marked by senescent cells consistently releasing low amounts of pro-inflammatory cytokines through a senescence-associated secretory phenotype (SASP). This continuous inflammation may accelerate immune system aging and establish a connection between immune aging and type 2 inflammatory skin diseases. In addition, two chronic pigmentation disorders, vitiligo and chloasma, are also associated with skin aging. Aged cells escape the immune system and accumulate in tissues, forming a microenvironment that promotes cancer. At the same time, “photoaging” caused by excessive exposure to ultraviolet radiation is also an important cause of skin cancer. This manuscript describes the possible links between skin aging and type 2 inflammation, chronic pigmentation disorders, and skin cancer and suggests some treatment options.
Discriminative characteristics of hydrochemical components and sedimentary organic matter in Korean coastal aquaculture systems during summer
Authors: Kim Seung-Hee , Park Sung-Eun , Kim Chung-Sook , Lee Dong-Hun
Published: November 2024

Understanding the spatial distribution and sources of sedimentary organic matter (OM) in coastal environments is crucial for effective water quality management and the preservation of ecosystem health. Although extensive research has been conducted on OM dynamics, there remains a gap in understanding the ongoing biogeochemical processes in Korean coastal aquaculture zones, particularly during the summer season. To address this gap, we investigated the spatial variation of water chemical properties and isotopic composition of sedimentary OM to trace the composition, source, and reactivity of mixed OM in aquaculture systems along the Korean coast during the summer season. The isotopic approach was applied to surface sediments from five sections: western (W)-1, W-2, southern (S)-1, S-2, and eastern (E)-1. With respect to increased nutrients (mainly nitrate; 1.2 ± 0.6 mg/L) by dam-water discharge near W sections, our isotopic signatures revealed that a substantial fraction of sedimentary OM might dominantly originated from autochthonous OM source (algae; 36.5%) related to the increase of terrestrial nutrients. Simultaneously, the deposition of allochthonous OM (aquacultural feces; 44%) was predominant in the S-2 sections. The 34S-depleted patterns (approximately -7.2‰) in the S-2 section was indicative of active sulfate reduction occurring at the sedimentary boundary. Therefore, together with the precise determination of ongoing OM, our isotopic results provide valuable insights for effectively managing water-sedimentary qualities under the increase of anthropogenic contamination.
Virome of red imported fire ants by metagenomic analysis in Guangdong, southern China
Authors: Li Qiuxu , Lian Yingjie , Zhang Ketong , Chen Jinchao , Chen Long , Wu Jiandong , Zhang Yangyang , Chen Minyi , Zhang Weize , Lu Mengke , Ma Jun , Bai Aiquan
Published: November 2024

The red imported fire ant (RIFA) has made China its habitat for approximately 25 years, but few reports have described the species and amount of virus circulating in it. Researchers are currently exploring viruses associated with RIFAs as potential biological control agents against invasive ants. The present meta-transcriptome analysis revealed the virome of red imported fire ants in Guangdong, southern China, which included 17 viruses, including Solenopsis invicta virus 4-GD (SINV-4) and Guangdong Polycipiviridae ant virus 1 (GPAV1) in the Polycipiviridae family; Solenopsis invicta virus 1-GD (SINV-1), and Guangdong Dicistroviridae ant virus 2-3 (GDAV2-3) in the Dicistroviridae family; Guangdong Iflaviridae ant virus 4-9 (GIAV4-9) in the Iflaviridae family; Guangdong Parvoviridae ant virus 10 (GPAV10) in the Parvoviridae family; and Guangdong ant virus 11-15 (GAV11-15). A total of 15 novel viruses and 2 known viruses were identified in this study. These findings reveal the virome of red imported fire ants in Guangdong Province and present a different result from that of a similar study reported in the United States, providing more choices for potential classical biological control agents against red imported fire ants in China.
Efficacy and safety of RC48-ADC in HER2-positive and HER2-low metastatic breast cancer: a multicenter, real-world study
Authors: Qu Fei , Lu Rongrong , Wu Xinyu , Liu Qian , Zha Mengyao , Li Huihui , Yuan Yuan , Han Zhengxiang , Cai Dongyan , Huang Xiang , Yin Yongmei , Li Wei
Published: November 2024

Background

A standard treatment recommendation for third-line and subsequent treatments for advanced HER2-positive breast cancer is still missing, especially for low HER2 expression. Nevertheless, there is evidence that these patients might benefits from antibody-drug conjugates (ADCs) treatment. Therefore, this study aimed to evaluate the clinical efficacy, safety, and factors affecting efficacy of Disitamab Vedotin (RC48) for treating HER2-positive and HER2-low metastatic breast cancer (MBC) in the real-world setting.

Methods

A retrospective study at five clinical sites was conducted in China, enrolling MBC patients treated with RC48 from July 01, 2021 and May 31, 2023. Patient demographics, treatment patterns, and adverse events (AEs) were recorded and analyzed.

Results

A total of 154 patients were included: 104 (67.53%) patients with HER2-positive and 50 (32.47%) patients with HER2-low MBC. The median progression-free survival (mPFS) was 5.06 months. The objective response rate (ORR) and disease control rate (DCR) were 36.36% and 68.83%, respectively. HER2-positive patients exhibited a mPFS of 5.93 and an ORR of 41.35%. In contrast, patients with low-HER2 had a mPFS of 4.28 months and an ORR of 26.00%. The most common AEs included neutropenia (54.55%), increased AST (53.25%), leukopenia (51.95%), and fatigue (43.51%), mostly graded mild to moderate (grade 1-2).

Conclusions

This extensive study in China demonstrated that RC48 has excellent therapeutic potential for both HER2-positive and HER2-low MBC with a favorable safety profile. The study also suggests that combination therapy significantly boosts efficacy beyond monotherapy, indicating a promising avenue for future ADC development.
Lactate dehydrogenase A is a diagnostic biomarker associated with immune infiltration, m6A modification and ferroptosis in endometrial cancer
Authors: Huang Yan , Tang Weichun , Chen Liping
Published: November 2024

Background

Lactate dehydrogenase A (LDHA) has been confirmed as a tumor promoter in various cancers, but its role in endometrial cancer remains unclear.

Methods

The Cancer Genome Atlas (TCGA), quantitative real-time polymerase chain reaction and the Human Protein Atlas were utilized to analyzed the LDHA expression in EC. The LDHA levels of patients with different clinical features were compared based on the TCGA cohort. The Genome Ontology, Kyoto Encyclopedia of Genes and Genomes, and Gene Set Enrichment Analysis of LDHA-related genes were conducted by R language. The influence of LDHA knockdown on cell proliferation, apoptosis, migration and invasion was detected by in vitro experiment. The relationship between LDHA expression and immune infiltration was explored by Tumor Immune Estimation Resource 2.0 and Gene Expression Profiling Interactive Analysis. The association of LDHA level with N6-methyladenosine (m6A) modification and ferroptosis was investigated based on the TCGA-UCEC and the GEO cohort.

Results

The LDHA was overexpressed in EC tissues and EC cell lines, and had high predictive accuracy for the EC diagnosis. The LDHA level was associated with age, histological type, histologic grade, and radiation therapy. LDHA-related genes participated in multiple biological functions and signaling pathways. LDHA downregulation significantly promoted cell apoptosis and inhibited the proliferation, migration, and invasion of EC cells. LDHA expression was connected to multiple tumor-infiltrating lymphocytes (TILs), m6A-related genes, and ferroptosis-related genes.

Conclusion

LDHA has the potential to work as an EC biomarker associated with TILs, m6A modification, and ferroptosis in EC.
Identification of immune-associated genes for the diagnosis of ulcerative colitis-associated carcinogenesis via integrated bioinformatics analysis
Authors: Cang Xueyu , Li Ning , Qi Jihan , Chen Hongliang , Xing Hui , Qiu Jiawei , Tian Yingying , Huang Shiling , Deng Pengchao , Gao Feiyang , Chaulagain Ram Prasad , Ullah Ubaid , Wang Chunjing , Liu Lina , Jin Shizhu
Published: November 2024

Background

UC patients suffer more from colorectal cancer (CRC) than the general population, which increases with disease duration. Early colonoscopy is difficult because ulcerative colitis-associated colorectal cancer (UCAC) lesions are flat and multifocal. Our study aimed to identify promising UCAC biomarkers that are complementary endoscopy strategies in the early stages.

Methods

The datasets may be accessed from the Gene Expression Omnibus and The Cancer Genome Atlas databases. The co-expressed modules of UC and CRC were determined via weighted co-expression network analysis (WGCNA). The biological mechanisms of the shared genes were exported for analysis using the Gene Ontology and Kyoto Encyclopedia of Genes and Genomes. To identify protein interactions and hub genes, a protein-protein interaction network and CytoHubba analysis were conducted. To evaluate gene expression, external datasets and experimental validation of human colon tissues were utilized. The diagnostic value of core genes was examined through receiver operating characteristic (ROC) curves. Immune infiltration analysis was employed to investigate the associations between immune cell populations and hub genes.

Results

Three crucial modules were identified from the WGCNA of UC and CRC tissues, and 33 coexpressed genes that were predominantly enriched in the NF-κB pathway were identified. Two biomarkers (CXCL1 and BCL6) were identified via Cytoscape and validated in external datasets and human colon tissues. CRC patients expressed CXCL1 at the highest level, whereas UC and CRC patients showed higher levels than the controls. The UC cohort expressed BCL6 at the highest level, whereas the UC and CRC cohorts expressed it more highly than the controls. The hub genes exhibited significant diagnostic potential (ROC curve > 0.7). The immune infiltration results revealed a correlation among the hub genes and macrophages, neutrophils and B cells.

Conclusions

The findings of our research suggest that BCL6 and CXCL1 could serve as effective biomarkers for UCAC surveillance. Additionally, they demonstrated a robust correlation with immune cell populations within the CRC tumour microenvironment (TME). Our findings provide a valuable insight about diagnosis and therapy of UCAC.
The effect of alexithymia on self-perceived aging among community-dwelling older adults with multiple chronic conditions: the mediating role of maladaptive cognitive emotion regulation strategies
Authors: Xu Jianou , Shang Bin , Zhang Jun , Luo Caifeng , Bian Zekun , Lv Fei , Yang Zhengxia
Published: November 2024

Objectives

This study investigated the mediating role of maladaptive cognitive emotion regulation strategies in the relationship between alexithymia and self-perceived aging among older adults.

Methods

We surveyed 478 Chinese community-dwelling older adults from November 2022 to May 2023. The Toronto Alexithymia Scale (TAS-20), Cognitive Emotion Regulation Questionnaire (CERQ), and Brief Aging Perceptions Questionnaire (B-APQ) were used. Correlation analyses, multiple linear regression analysis, and structural equation modeling were performed.

Results

The average age of participants was 71.52 ± 7.80 years, and the number of chronic diseases was distributed as follows: 270 (56.49%) had 2 disease conditions, 156 (32.64%) had 3 disease conditions, and 52 (10.88%) had 4 disease conditions or more. Scores for alexithymia 57.83 ± 10.19; maladaptive cognitive emotion regulation strategies 49.63 ± 10.65; and self-perceived aging 58.74 ± 10.23. Alexithymia and maladaptive cognitive emotion regulation strategies were positively correlated with negative self-perceived aging (r=0.665 and r=0.673, respectively), explaining 51.8% of the variance in self-perceived aging. Structural equation modeling results showed that alexithymia had a direct effect (of 0.368) on self-perceived aging, accounting for 44.1% of the total effect. Maladaptive cognitive emotion regulation strategies partially mediated the relationship, with a mediation effect of 0.386, accounting for 51.8% of the total effect.

Conclusion

These findings suggest that addressing maladaptive cognitive emotion regulation strategies can help reduce negative self-perceived aging in elderly individuals with multiple chronic conditions, particularly among those with alexithymia.
Knowledge, attitudes, and practices of dietary management among patients with rheumatoid arthritis in China
Authors: Li Xueyong , Liu Ju , Yu Jie , Dong Liang
Published: November 2024

Background

This study aims to assess the knowledge, attitudes, and practices (KAP) regarding dietary management among patients with rheumatoid arthritis (RA).

Methods

A cross-sectional survey was conducted at JiuJiang NO.1 People’s Hospital from November 2023 to May 2024. Data were gathered using structured questionnaires that solicited demographic information and measured KAP scores related to dietary management in RA patients.

Results

The survey yielded 504 valid questionnaires. Of the respondents, 306 (60.71%) had a Body Mass Index (BMI) within the optimal range of 18.5–23.9 kg/m2. The mean scores for knowledge, attitude, and practice were 10.13 ± 3.58 (possible range: 0–22), 31.38 ± 2.38 (possible range: 9–45), and 4.46 ± 2.30 (possible range: 0–12), respectively. Correlation analysis revealed significant relationships between knowledge and practice (r = 0.294, p < 0.001) as well as between attitude and practice (r = 0.178, p < 0.001). Multivariate logistic regression showed that knowledge score (OR = 1.165, 95% CI: [1.078, 1.259], p < 0.001) was independently associated with proactive practice. The structural equation model (SEM) results showed that knowledge had direct effects on attitude (β = 0.291, p < 0.001) and practice (β = 0.188, p < 0.001). Meanwhile, attitude had a direct impact on practice (β = 0.081, p = 0.045).

Conclusion

This study indicates that patients with RA generally demonstrate inadequate knowledge but hold positive attitudes toward dietary management, despite relatively inactive practices in implementing such dietary changes. Healthcare providers should prioritize educational interventions that not only enhance patient understanding but also actively support the implementation of dietary management strategies in clinical settings.
Networked microcontrollers for accessible, distributed spatial audio
Authors: Rushton Thomas Albert , Michon Romain , Serafin Stefania , Risset Tanguy , Letz Stéphane
Published: November 2024

State-of-the-art systems for spatial and immersive audio are typically very costly, being reliant on specialist audio hardware capable of performing computationally intensive signal processing and delivering output to many tens, if not hundreds, of loudspeakers. Centralised systems of this sort suffer from limited accessibility due to their inflexibility and expense. Building on the research of the past few decades in the transmission of audio data over computer networks, and the emergence in recent years of increasingly capable, low-cost microcontroller-based development platforms with support for both networking and audio functionality, we present a prototype decentralised, modular alternative. Having previously explored the feasibility of running a microcontroller device as a networked audio client, here we describe the development of a client-server system with improved scalability via multicast data transmission. The system operates on ubiquitous, commonplace computing and networking equipment, with a view to it being a simple, versatile, and highly-accessible platform, capable of granting users the freedom to explore audio spatialisation approaches at vastly reduced expense. Though faced by significant technical challenges, particularly with regard to maintaining synchronicity between distributed audio processors, the system produces perceptually plausible results. Findings are commensurate with a capability, with further development and research, to disrupt and democratise the fields of spatial and immersive audio.
Case report: A rare case of oral sebaceous carcinoma in the upper lip
Authors: Katib Yousef , Essatari Murad
Published: November 2024

Sebaceous carcinoma (SC) is a rare aggressive malignant tumor that originates in the adnexal epithelium of the sebaceous gland. While occurrences on the lips are extremely uncommon, there have been a few reported cases in the literature. Our case involves a 47-year-old smoker male who presented with a painless, non-mobile lesion on his upper lip that had been present for 12 months. Upon clinical examination, an ulcerated, exophytic, and irregularly shaped mass was observed on the upper lip. No other intraoral lesions were found. An incisional biopsy was performed, revealing a malignant tumor with a nodular pattern consisting of basaloid cells with obvious sebaceous differentiations and frequent mitoses. The neoplastic cells tested positive for broad-spectrum cytokeratin (AE1-AE3), epithelial membrane antigen (EMA), and P53, while testing negative for S-100 and carcinoembryonic antigen (CEA). Based on these results, a diagnosis of SC of the upper lip was made. This case report and review aimed to describe the histogenesis, unique clinicopathological features, and current treatment options for SC.
Teachers’ Use of Mental State Talk: Narration of Wordless Picture Storybooks with Preschoolers
Authors: Toor Hafsa Khalil , Hanif Rubina
Published: November 2024

Purpose. Rich language experiences during early school years have been linked withpreschoolers' multiple development outcomes. The present study explores preschool teachers’ useof mental state talk during wordless picture storybook narration. Additionally, it investigates howteachers’ years of experience and educational qualification influence the use and variation inmental state talk.Method. In total, 67 preschool teachers participated in story narration sessions with a group of4-5 preschoolers, using indigenous wordless picture storybooks. Transcriptions from theaudio-recorded storytelling sessions were coded into three mutually exclusive categories ofcognition, emotion, and desire of mental state talk.Results. The findings indicated that preschool teachers vary in frequency with which they usemental state talk. Moreover, the results showed that teachers used more cognitive mental stateterms than emotional or desire terms. It revealed that teachers with higher educationalqualifications and better teaching experience use more mental state talk as compared to lessereducational qualifications and teaching experiences.Conclusion. Teachers need to be aware and conscious about the use of words and mental stateterms while interacting with the pre-schooler and their contribution to child-related outcomes. Itprovides direction for policymakers to induct teachers with proper qualifications and experienceto interact with the pre-schoolers. The present research is unique in its utilization of indigenouspicture storybooks by preschool teachers and it adds to the dearth of work on teachers’ mental statetalk.
Moderating Impact of Leader’s Role in Promoting Islamic Work Ethics between the Relationship of Procedural and Distributive Justice on Employee Commitment
Authors: Malik Fozia , Waheed AJMAL
Published: November 2024

Objective. The basic objective of this research is to study the moderating impact of leader’s role in promoting Islamic work ethics between the relationship of procedural and distributive justice on employee commitment.Method. For this purpose, employees of hospitality industry was selected as a targeted population. The survey was administered by distributing 300 questionnaires among the employees by using convenience sampling technique, 268 questionnaires were returned out of which 11 questionnaires were not properly filled, so the sample size for this research was 257 which is showing 85% response rate. For moderation analysis Preacher and Hayes method was used through Process Macros.Results. The findings have shown that these relations outcome was only originated among those with strong implementation of leader’s role in promoting Islamic work ethics. Hence, leader’s role in promoting Islamic work ethics strengthen the relationship among procedural and distributive justice on employee commitment. Results of this study opened novel, innovative and practical approach into the current debate of the leader’s role in promoting Islamic work ethics.Implications. The originality of current work is that the concept of Islamic work ethics is studied many times previously but the leader’s role in promoting Islamic work ethics is a new phenomenon. As being of Muslims the leaders must promote Islamic work ethics at their work life. Therefore, from the avenue of present research future researchers can gain new insight.
Managing Mental Health Problems and Quality of Life among Dialysis Patients through Stress Management Intervention
Authors: Sultan Sarwat , Munir Rabia , Kanwal Frasat
Published: November 2024

Objective. Chronic diseases and psychological disorders have privileged co morbidity with each other; dialysis patients are also at high risk of internalizing problems. This study investigated the effectiveness of stress management techniques in controlling internalizing problems and kidney disease related quality of life of the dialysis patientsMethod. This study was completed using repeated measure research design with 20 diagnosed kidney patients found high on mental health problems who were randomly selected from initially approached sample of 100 registered patients in Nishtar Hospital Multan. 20 participants were then randomly assigned to intervention and control group equally. Stress management techniques were administered to intervention group only. Pre and post data were obtained on Kidney Disease Related Quality of Life Scale (Hays et al., 1994) and Depression, Anxiety, Stress Scale (Lovibond & Lovibond, 1995). This study was conducted during 2016-2017.Results. Significant differences were found in pre and post-scores on kidney disease quality of life, depression,anxiety and stress for intervention group (t = 5.03, < .001 and t = 8.12, 1.42,3.02 at <0.01 respectively) while insignificant findings were found for control group. It implies that patients after receiving stress management intervention (Meichenbaum, 1993) reported an increase in quality of life and decrease in their symptoms of depression, anxiety, and stress.Conclusion. Stress management techniques have been found effective in improving kidney related quality of life and lowering depression, anxiety, and stress of kidney patients.Implications. The findings of present study are useful for the physicians and family members of kidney patients. Stress management techniques if are employed by kidney patients' professionals in particular and their family members in general can extend the quality of life and let down the depression, anxiety, and stress. Seminars and workshop should be conducted for the awareness of these internalizing problems and importance of stress management.
Exploring the Role of Family Dynamics in Suicide Attempt: Indigenous Perspective
Authors: Mubashar Dr. Tahira , Butt Tayyab Ali
Published: November 2024

Background. In recent years, incidences of suicide appear to have increased in Pakistan and suicide has become a major public health problem. Being Islamic country, in Pakistansuicide is, considered an offense and one of the understudied phenomenon.
Objective Present qualitative inquiry aimed to explore different family dynamics that leads to suicide attempt.
Method. In present study collective case study was used as research strategy. Research participants were recruited through purposive sampling strategy. Sample comprised of two suicide attempt survivors, aged between 24 and 25 years. Semi-structured interviews were used as a tool of data collection.
Results. The findings of the study revealed that in family dynamics, parental neglect, hostility, disregard, bundles of restrictions, lack of warmth and communication gap had the leading role towards suicide attempt in young adults. Moreover, findings showed that conflictual relationship with parents and siblings makes an individual feel worthless, and seeing self as burden for the family ultimately leads to suicide attempts. It is also emerged from the data that parental disputes had devastating effects in life of young adults.
Conclusion.Research findings contribute to a meaningful understanding of how suicide risk is increased by unhealthy family dynamics and paved the way for an effective intervention plan.
Risk and Protective Factors of Suicidal Ideation among Eastern and Western Countries: A Systematic Review
Authors: Muneeb Noor Ul Ain , Hassan Sumara Masood Ul
Published: November 2024

Background. Suicide is the second consumer of life among 15 to 29 years old adults. Extant literature is invested in psycho-social determinants of suicidal behavior, whereas little synthesized evidence about determinants of suicidal ideation in Eastern and Western countries is available. Hence, this study aimed to deliver a thorough, updated, and methodical review of the available literature on risk and protective factors of suicidal ideation in Eastern and Western countries, and a critical appraisal of selected studies.
Method. A total of 41 out of 273 full-text articles were included as per PRISMA guidelines. Data was extracted from the database of PubMed Central, Embase, and ScienceDirect. The articles with risk and/or protective elements of suicidal ideation, published in English language were included. The sampling populations were young students lying in most vulnerable age group between 15 to 29 years old. For critical appraisal, SIGN and AXIS criteria were employed. The instruments administered to assess the level of suicidal ideation among studies varied from a single item to complete questionnaire.
Results. Consistent risk and protecting determinants of suicidal ideation in both Eastern and Western countries like psychological disorders, personality traits, childhood and adult maltreatment, familial conflicts, anhedonia, strain, sleep disturbances, emotional reactivity, rumination, and negative coping were observed. Hardiness, resilience, social support, autonomy, and extraversion had a protective role. Physical risk elements like allergic diseases and defecation disorders were identified in Eastern countries.
Conclusion. More similarities than differences were found in Eastern and Western countries. Policymakers should take into account the modifiable risk elements and employ protective elements to manage risk at the ideation level before its progression to complete suicide.
Keywords. Suicidal ideation, risk factors, protective factors, Eastern and Western countries, systematic review
Psychological Determinants of Volunteerism in Context of Theory of Planned Behavior
Authors: Tanveer Syeda Dua , Zubair Dr Aisha , Latif Kainat , Ashraf Samiya , Yaseen Tayyabah
Published: November 2024

Background. The present study was aimed at investigating the relationship among helping attitude, subjective norms of helping behavior, community related efficacy, and volunteerism among volunteers. Moreover, it also focused to ascertain the role of demographics (gender, education, duration of volunteering, monthly family income) across all study variables.
Method. Measures of Helping Attitude Scale (Nickell, 1998), Subjective Norms of Helping Behavior Scale (Khattak, 2019), Community Related Efficacy Scale (Reeb et al., 1998), and Bales Volunteerism-Activism Scale (Bales, 1996), were used to assess the study variables. The sample consists of 350 male and female volunteers with the age range of 23 to 29 years.
Results
Results showed that helping attitude, subjective norms of helping behavior, and community related efficacy positively predicted volunteerism. Findings revealed that female volunteers were high on helping attitude, and subjective norms of helping behavior and low on volunteerism as compared to male volunteers. Moreover, significant differences were observed on education, monthly family income, type of volunteering, and duration of volunteering in relation to study variables.
Implications.  Implications of the study involve the significance of volunteerism as a component of prosocial behavior, drawing the attention of both academics and professionals. Limitations and suggestionsfor future researches had also been discussed.
Keywords: Helping attitude, subjective norms, community related efficacy, volunteerism, theory of planned behavior
Research on Radial Vibration Model and Low-Frequency Vibration Suppression Method in PMSM by Injecting Multiple Symmetric Harmonic Currents
Authors: Kang Le , Zhang He , Xia Jiakuan , Qi Meijun , Zhao Yunqi
Published: November 2024

Driven by frequency conversion, the windings of a three-phase permanent magnet synchronous motor (PMSM) contain both odd and even harmonic currents. Due to the motor’s pole–slot conductance modulation, the interaction between the magnetic fields generated by these harmonic currents and the permanent magnet field results in harmonic radial vibrations of the motor. This paper analyzes the three-phase currents of the prototype and derives the radial magnetomotive force (MMF) spatiotemporal models for symmetric harmonic currents. By integrating Maxwell’s magnetic force formula and vibration response formula, the radial vibration models for symmetric harmonic currents are developed. The characteristics of vibrations caused by odd and even harmonic currents, as well as positive sequence and negative sequence harmonic currents, are analyzed separately. A cyclic sequence, low-frequency vibration suppression control method incorporating multiple harmonic current injections was designed. Experimental results of this method are compared with those obtained using an ideal sinusoidal current. Except for the second harmonic vibration, all other vibrations are significantly suppressed, with a maximum suppression rate of 92.28%. The total vibration level is reduced by 12.7619 dB, and the average torque is reduced by 0.67% with the total harmonic distortion of the current at 2.89%. The experimental results show that the vibration method in this paper has little influence on the average torque of the motor, the current distortion rate is small, and the vibration suppression effect is good.
Statistical Analysis of LEO and GEO Satellite Anomalies and Space Radiation
Authors: Buitrago-Leiva Jeimmy Nataly , El Khayati Ramouz Mohamed , Camps Adriano , Ruiz-de-Azua Joan A.
Published: November 2024

Exposure to space radiation substantially degrades satellite systems, provoking severe partial or, in some extreme cases, total failures. Electrostatic discharges (ESD), single event latch-up (SEL), and single event upsets (SEU) are among the most frequent causes of those reported satellite anomalies. The impact of space radiation dose on satellite equipment has been studied in-depth. This study conducts a statistical analysis to explore the relationships between low-Earth orbit (LEO) and geostationary orbit (GEO) satellite anomalies and particle concentrations, solar and geomagnetic activity in the period 2010–2022. Through a monthly and daily timescale analysis, the present work explores the temporal response of space disturbances on satellite systems and the periods when satellites are vulnerable to those disturbances.
Three-Dimensional Rapid Orbit Transfer of Diffractive Sail with a Littrow Transmission Grating-Propelled Spacecraft
Authors: Quarta Alessandro A.
Published: November 2024

A diffractive solar sail is an elegant concept for a propellantless spacecraft propulsion system that uses a large, thin, lightweight surface covered with a metamaterial film to convert solar radiation pressure into a net propulsive acceleration. The latter can be used to perform a typical orbit transfer both in a heliocentric and in a planetocentric mission scenario. In this sense, the diffractive sail, proposed by Swartzlander a few years ago, can be considered a sort of evolution of the more conventional reflective solar sail, which generally uses a metallized film to reflect the incident photons, studied in the scientific literature starting from the pioneering works of Tsander and Tsiolkovsky in the first decades of the last century. In the context of a diffractive sail, the use of a metamaterial film with a Littrow transmission grating allows for the propulsive acceleration magnitude to be reduced to zero (and then, the spacecraft to be inserted in a coasting arc during the transfer) without resorting to a sail attitude that is almost edgewise to the Sun, as in the case of a classical reflective solar sail. The aim of this work is to study the optimal (i.e., the rapid) transfer performance of a spacecraft propelled by a diffractive sail with a Littrow transmission grating (DSLT) in a three-dimensional heliocentric mission scenario, in which the space vehicle transfers between two assigned Keplerian orbits. Accordingly, this paper extends and generalizes the results recently obtained by the author in the context of a simplified, two-dimensional, heliocentric mission scenario. In particular, this work illustrates an analytical model of the thrust vector that can be used to study the performance of a DSLT-based spacecraft in a three-dimensional optimization context. The simplified thrust model is employed to simulate the rapid transfer in a set of heliocentric mission scenarios as a typical interplanetary transfer toward a terrestrial planet and a rendezvous with a periodic comet.
Measurement and Identification of Flame Describing Function (FDF) Based on Parallel Subsystem Model
Authors: Wang Zhaohui , Wang Yichen , Zhu Min
Published: November 2024

Because of the need for low pollutant emissions, industrial gas turbines typically use partially premixed gases for combustion. However, the nonlinear dynamic characteristics of partially premixed flames have not been studied sufficiently. Therefore, this study focuses on the dynamics of a partially premixed flame generated by a swirler with fuel holes on its surface and designs a flame describing function (FDF) identification method based on the parallel subsystem model. This method can separate the flame dynamic characteristics into a parallel connection of the nonlinear and linear models. The nonlinear model is related to the disturbance frequency and velocity perturbation amplitude, whereas the linear model depends only on the disturbance frequency. This method is verified using a simulation. Finally, experimental research on partially premixed flames is conducted. Based on the experimental data, the identification method successfully separates the FDF into a nonlinear model with saturation characteristics and a linear model with Gaussian distribution characteristics. The flame model obtained by the identification method is the foundation for the analysis of combustion thermoacoustic stability and active/passive control strategy.
Salmonella: Role in Internal and External Environments and Potential as a Therapeutic Tool
Authors: Naughton Patrick J. , Naughton Violetta R. , Dooley James S. G.
Published: November 2024

Salmonella has had a long and intimate relationship with humans and continues to raise concerns for human health, but this close bond also provides opportunities for new therapeutics and treatments. Although Salmonella enterica serovar Typhi is the principal organism that comes to mind in terms of death and morbidity, it is the non-typhoidal Salmonellae that have the most health and economic implications. The developed world has had a challenging relationship with Salmonella, particularly in the UK and the EC/EU, experiencing significant Salmonella outbreaks in the 1980s and 1990s. As a consequence, the research focus was on understanding the nature of infection in food animals and on developing ways and means of controlling zoonotic infections. This led to the development of numerous model systems for the study of Salmonella both in vitro and in vivo. The introduction of vaccination has all but eliminated Salmonella in eggs and reduced perceived risk held by the general public. At the same time as Salmonella in eggs was being brought under control in the UK and EU, the danger posed by antibiotic resistance was beginning to emerge. In the past, with the efficacy of antibiotics against Gram-negative bacteria being unchallenged, there was limited focus on the threat posed by antibiotic resistance in non-typhoidal Salmonella. However, the identification of Salmonella as the first ‘multidrug-resistant’ organism, the presence of invasive non-typhoidal Salmonella in North Africa and the emergence of monophasic Salmonella enterica serovar Typhimurium across Europe, Asia and the Americas have prompted renewed interest in Salmonella research, particularly in the context of non-infectious disease, biofilm studies and antibiotic resistance. At the same time, research has continued to develop ways of taking advantage of what Salmonella offers in the way of pathogenic factors and the therapeutic and treatment applications in areas such as vaccine development, cancer therapeutics and drug delivery and the role of Salmonella in non-infectious diseases supported by developments in molecular and genomic methods.