bluuebunny/crossref_metadata_2025 huggingface dataset:
Smart sensors and Internet of Things (IoT) for sustainable environmental and agricultural management
Authors: Mota Gustavo de Araújo , Santos Rodrigo Couto , Dos Santos Jonison Almeida , Lovatto Juliano , Geisenhoff Luciano Oliveira , Machado Carlos Alberto Chuba , Diallo Mamadou Cellou Abdoulaye , Lopes André Luiz Nascimento , Nascimento Daniel Oliveira , de Carvalho Maria Madalena Avila Jardim
Published: December 2023

With the advancement of smart sensors and the Internet of Things, innovative technologies for environmental monitoring and rural installations have become solutions to increase production sustainably. Thus, this work analyzes the application of smart sensors and the Internet of Things (IoT) in the environmental monitoring of rural facilities, aiming to promote sustainability and efficiency in agricultural production. Smart sensors can collect environmental data in real-time, which is essential in rural environments. IoT enables communication and integration of this data. These technologies bring several benefits, such as improvements in efficiency, productivity, and sustainability. The study addresses types of sensors used in monitoring, such as optical, acoustic, chemical, and physical, in addition to monitored parameters, such as air and soil quality. Emerging technologies are also explored, including wireless network sensors, multispectral monitoring, microsatellites, blockchain, and virtual reality. The review includes case studies on successful applications of IoT and sensors in contexts such as smart irrigation, precision agriculture, and animal facility monitoring. It is concluded that these technologies have a high potential to contribute to more sustainable agricultural systems and animal production. Challenges such as privacy, security, and ethical use of data are highlighted.
Importância da reanimação cardiopulmonar pré-hospitalar iniciada por leigos em ambientes esportivos amadores
Authors: Machado Heloísa Helena Cardoso , Lage Flávia Lúcia Ponte , Oliveira Josilaine Caetano Ferreira da Silva , De Medeiros Suzana Gaspar Lopes , Ihns Nicholas Pita , Lima Larissa Rodrigues Nascimento , Kann Margareth Lima
Published: December 2023

Introdução: O Infarto Agudo do Miocárdio – IAM é a maior causa de morte no mundo. Como complicação, pode ocorrer a fibrilação ventricular - FV, com Parada Cadiorrespiratória - PCR, cujo tratamento inicial é a Reanimação Cardiorrespiratória por massagem cardíaca e posterior desfibrilação. Devido à gravidade e prevalência entre esportistas eventuais, são necessárias condutas rápidas e adequadas, determinantes ao desfecho, mesmo realizadas por leigos. Apresentamos dois casos que demostram a importância do primeiro atendimento. Desenvolvimento: No atendimento pré-hospitalar da PCR é necessária uma abordagem imediata, 40 a 60% das mortes ocorrem na primeira hora, fora do ambiente hospitalar. A FV é uma complicação grave, levando à morte súbita em minutos. A massagem cardíaca e desfibrilação têm índice de sucesso dentro de 3 minutos de 95%. A diferença no desfecho de dois casos ocorridos nos anos de 2011 e 2012, no Rio de Janeiro, exemplificam a importância dos primeiros socorros com adequada compressão cardíaca, em vítimas de IAM seguido de FV com PCR. Considerações finais: A fim de melhorar o desfecho dos casos de PCR é necessário treinamento da população em geral, objetivando um início precoce do Suporte Básico da Vida.
O dilema da expansão do pré-sal e a maldição dos recursos naturais no Brasil
Authors: Pereira André dos Santos Alonso , Dos Santos Edmilson Moutinho , Costa Hirdan Katarina de Medeiros , Vescovi Thaiz
Published: December 2023

O presente artigo analisa a hipótese de que o aumento da produção de petróleo no Brasil, possibilitado pelas descobertas de jazidas offshore na camada Pré-Sal, pode tornar o país vulnerável à maldição dos recursos naturais. Para analisar as condições desse fenômeno no Brasil, o artigo realiza uma análise comparativa do panorama energético brasileiro com de outros países exportadores de petróleo considerados “vítimas” desta maldição, como Venezuela e Bolívia. Em seguida, será dada uma contextualização do setor energético brasileiro pós-exploração do Pré-Sal para realizaremos as comparações para avaliar se podemos considerar o Brasil como possível vítima dessa condição. Por fim, damos os exemplos de e boas medidas e práticas que alguns países exportadores de petróleo realizaram a nível jurídico para resguardar-se de eventuais sintomas, como é o caso da Noruega, considerado maior case de sucesso na superação do fenômeno em questão e utilização da renda petrolífera como um asset para o futuro.
They have freedom of choice. Indonesian immigrants’ discourse on religion and modernity in the Netherlands
Authors: Nabubhoga Maria
Published: December 2023

This study examines the discourse of Indonesian immigrants about religion and modernity in the Netherlands. In the Dutch debate on dealing with religion in the public arena, Indonesian immigrants tend to be neglected as the debate usually concentrates on (Muslim) immigrants from Morocco and Turkey. This study focuses on the concept of multiple modernities to explore the Indonesian immigrants’ perception of modern Dutch society. Using Norman Fairclough’s three-dimensional model of critical discourse analysis to analyse the data, the study finds that the notion of modernity in the context of multiple modernities needs revision because, according to Indonesian immigrants’ perception, European modernity is not as secular as Europeans themselves claimed. It is not secular Europe versus the religious rest of the world. It is the blurry boundaries of religious-secular division in Europe, in this case, the Netherlands.
Identifying Internet Streaming Services using Max Product of Complement in Neutrosophic Graphs
Authors:   Department of Mathematics, Faculty of Science and Information Technology Jadara University, Irbid, Jordan., AL-Omeri Wadei Faris AL ,   Department of Mathematics Vel Tech Rangarajan Dr.Sagunthala R  D Institute of Science and Technology, Chennai, India,   Department of Mathematics,Presidency University, Bangalore, India-560 064., Kaviyarasu M. , M. Rajeshwari.
Published: December 2023

The complement of the highest result of multiplication of two neutrosophic graphs is determined in this study. In the complement of the maximum product of a neutrosophic graph, the degree of a vertex is investigated. The complement of the maximum product of two normal neutrosophic graphs has several results that are presented and proven. Finally, we have offered a neutrosophic graph application for locating an online streaming service using normalized Hamming distance.
Evaluation of Hemotoxic, Hepatotoxic and Nephrotoxic Potential of Profenofos-based Insecticide in Freshwater Labeo rohita Fish at Low Concentrations
Authors: Mahmood Arva , Ahmad Shabbir , Akmal Hasnain , Shahzad Khurram
Published: December 2023

Profenofos, an organophosphate, is a major pollutant that pollutes freshwater bodies, causing significant impacts on fish health. Objective: Present study was performed to assess the toxicological impacts of pesticide profenofos on hematological, biochemical and histological alterations in different organs of Labeo rohita. Methods: Fish were divided in three groups. Group one was treated as control while second and third groups were exposed to 0.6 mg/L and 1.2 mg/L profenofos respectively for 28 days. Results: Results revealed that MCV, MCHC, MCH, RDW-SD, PCT, PDW, HGB, RBC and HCT levels were significantly reduced. WBC, RDW, PLT, MPV, neutrophils, lymphocytes, monocytes and eosinophils were increased as compared to pesticide free group. Biochemical results showed significant increase in cholesterol, triglycerides, AST, albumin, A/G ratio, HDL T3, T4, blood glucose, creatinine and urea levels were documented while levels of LDL, VLDL, ALT, total proteins, globulin, TSH and blood urea nitrogen (BUN) decreased significantly in exposed fish. Furthermore, histological changes in kidney, gills and liver of fish showed degenerative effects after exposure to profenofos in both concentrations. Conclusions: The present study concluded that profenofos resulted in widespread toxic effects on aquatic organisms specially fish.
Barriers and Facilitators in Access and Use of Maternal Health Services During Covid-19 Pandemic at a Tertiary Care Hospital; A Cross-Sectional Study
Authors: Kazmi Syeda Farheen Zehra , Mahmood Humaira , Habib Muhammad Farrukh , Khan Jawaria , Riaz Nimra , Raisani Sher Afgan , Kakakhel Syed Ihtisham
Published: December 2023

Maternal health being a global health priority emphasizes strongly on reduced maternal mortality rate, in a country. The delivery of maternal and child healthcare services in weak and vulnerable health systems has been severely impacted by the change in emphasis to contain the COVID-19 epidemic. Objective: To explore, identify and determine the barriers and facilitators in access to maternal health services during COVID-19 pandemic. Methods: Cross sectional study was conducted on all married women of reproductive age group who delivered in the pandemic season and visiting vaccination center of local tertiary care hospital between March 2020 to June 2021. Females were selected through convenience sampling technique. Data was collected through questionnaires, entered and analyzed in SPSS version 26.0 Results: Major barriers to accessing maternal health services by patients were fear of contracting COVID-19 at health facilities, lack of funds to pay for services at health facilities, transportation difficulties. Facilitators determined in this study includes Covid-19 non-pharmacological measures instituted at the health facilities, community sensitization on healthcare access during the pandemic and adaptive strategies to reduce waiting time at health facilities. Conclusions: The COVID-19 pandemic had a detrimental effect on access to maternal health care, in part because of difficulties brought on by travel restrictions and the incapacity of the health systems to create an environment that would encourage continued use of maternal health services.
Which predicts worker’s health behavior more strongly in the COVID-19 pandemic, anticipated regret or risk perception?
Authors: Faraz Faraz , Abraham Juneman , Nashori Fuad , Wijaya Hariz Enggar , Sofia Nanum , Rabbani Muhammad Dhia Rafid , Pramastyaningtyas Angela Dyah Ari , Wulandari Antonina Pantja Juni
Published: December 2023

This study aims to determine the predictive power of risk perception and anticipated regret on health behavior under uncertainty in the context of the COVID-19 pandemic. The research was conducted utilizing a predictive-correlational design and survey method to 224 Indonesian (156 women, 68 men; Mage = 37 years old). Multiple linear regression analysis demonstrated that risk perception has greater weight than anticipated regret in predicting health behavior. Additionally, mediation analysis showed that risk perception can partially mediate the prediction relationship between anticipated regret and health behavior.
Influence of Work Discipline and Work Environment on Employee Performance at PT Sentra Agroprima Lestari
Authors: Kirana Fitri
Published: December 2023

Employees are vital to business operations, especially when it comes to time management, work discipline and work environment. The aim of this research is to examine how the work environment and work discipline influence employee performance. PT employees. The Surabaya Agroprima Lestari Center is the subject of research. This research applies quantitative research methods as its methodology. Partial Least Square (PLS) analysis was applied, along with validity and reliability checks. Research findings show that employee performance was directly and positive significantly influenced by work discipline. Employee performance is directly and positive significantly influenced by the workplace.
Narrative review of traumatic pneumorrhachis
Authors: Pothiawala Sohil , Civil Ian
Published: December 2023

Pneumorrhachis (PR) is defined as presence of free air in the spinal canal. Traumatic PR is very rare, and its exact incidence and pathogenesis is unknown. A comprehensive literature search was performed using the PubMed, Cochrane Library, Google Scholar and Scopus databases to identify articles relevant to traumatic PR published till January 2023. A total of 34 resources were selected for inclusion in this narrative review. Traumatic PR can be classified anatomically into epidural and intradural types. In the epidural type, air is present peripherally in the spinal canal and the patients are usually asymptomatic. In contrast, in intradural PR, air is seen centrally in the spinal canal and patients present with neurological symptoms, and it is a marker of severe trauma. It is frequently associated with traumatic pneumocephalus, skull fractures or thoracic spine fracture. Computed tomography (CT) is considered to be the diagnostic modality of choice. Epidural PR is self-limited and patients are generally managed conservatively. Patients with neurological symptoms or persistent air in spinal canal require further evaluation for a potential source of air leak, with a need for surgical intervention. Differentiation between epidural and intradural PR is important, because the latter is an indication of severe underlying injury. CT imaging of the entire spine must be performed to look for extension of air, as well as to identify concomitant skull, torso or spinal injuries Most patients are asymptomatic and are managed conservatively, but a few may develop neurological symptoms that need further evaluation and management.
Advances in post intensive care unit care: A narrative review
Authors: Kumar Nishant
Published: December 2023

As the treatment options, modalities and technology has grown, mortality in intensive care unit (ICU) has been on the decline. More and more patients are being discharged to wards and in the care of their loved ones after at times prolonged treatment, sometimes in isolation. These survivors have a lower life expectancy and a poorer quality of life. They can have substantial familial financial implications and an economic impact on the healthcare system in terms of increased and continued utilisation of services, the so-called post intensive care syndrome (PICS). But it is not only the patient who is the sufferer. The mental health of the loved ones and family members may also be affected, which is termed as PICS-family. In this review, we shall be reviewing the definition, epidemiology, clinical features, diagnosis and evaluation, treatment and follow up of PICS. We shall also focus on measures to prevent, rehabilitate and understand the ICU stay from patients’ perspective on how to redesign the ICU, post ICU care needs for a better patient outcome.
Systematic review and meta-analysis of seroprevalence of human immunodeficiency virus serological markers among pregnant women in Africa, 1984-2020
Authors: Ebogo-Belobo Jean Thierry , Kenmoe Sebastien , Mbongue Mikangue Chris Andre , Tchatchouang Serges , Robertine Lontuo-Fogang , Takuissu Guy Roussel , Ndzie Ondigui Juliette Laure , Bowo-Ngandji Arnol , Kenfack-Momo Raoul , Kengne-Ndé Cyprien , Mbaga Donatien Serge , Menkem Elisabeth Zeuko'o , Kame-Ngasse Ginette Irma , Magoudjou-Pekam Jeannette Nina , Kenfack-Zanguim Josiane , Esemu Seraphine Nkie , Tagnouokam-Ngoupo Paul Alain , Ndip Lucy , Njouom Richard
Published: December 2023

BACKGROUND

Human immunodeficiency virus (HIV) is a major public health concern, particularly in Africa where HIV rates remain substantial. Pregnant women are at an increased risk of acquiring HIV, which has a significant impact on both maternal and child health.

AIM

To review summarizes HIV seroprevalence among pregnant women in Africa. It also identifies regional and clinical characteristics that contribute to study-specific estimates variation.

METHODS

The study included pregnant women from any African country or region, irrespective of their symptoms, and any study design conducted in any setting. Using electronic literature searches, articles published until February 2023 were reviewed. The quality of the included studies was evaluated. The DerSimonian and Laird random-effects model was applied to determine HIV pooled seroprevalence among pregnant women in Africa. Subgroup and sensitivity analyses were conducted to identify potential sources of heterogeneity. Heterogeneity was assessed with Cochran's Q test and I2 statistics, and publication bias was assessed with Egger's test.

RESULTS

A total of 248 studies conducted between 1984 and 2020 were included in the quantitative synthesis (meta-analysis). Out of the total studies, 146 (58.9%) had a low risk of bias and 102 (41.1%) had a moderate risk of bias. No HIV-positive pregnant women died in the included studies. The overall HIV seroprevalence in pregnant women was estimated to be 9.3% [95% confidence interval (CI): 8.3-10.3]. The subgroup analysis showed statistically significant heterogeneity across subgroups (P < 0.001), with the highest seroprevalence observed in Southern Africa (29.4%, 95%CI: 26.5-32.4) and the lowest seroprevalence observed in Northern Africa (0.7%, 95%CI: 0.3-1.3).

CONCLUSION

The review found that HIV seroprevalence among pregnant women in African countries remains significant, particularly in Southern African countries. This review can inform the development of targeted public health interventions to address high HIV seroprevalence in pregnant women in African countries.
Potential Effects of Nigella Sativa Supplementation in Coronary Heart Disease and other Cardiovascular Diseases
Authors: Qahwaji Dina , Serafi Abdulhalim
Published: December 2023

Coronary heart disease (CHD) or coronary artery disease (CAD) is considered one of the worldwide leading causes of death and is characterized by either stenosis or occlusion of coronary arteries leading to myocardial ischemia or infarction respectively. Prevention of risk factors, improvement in biomarker levels and control of CHD are described as a strategic plan for Saudi Vision 2020-2030. Given the beneficial healthy effects of Nigella sativa (N. sativa), and since it is known that the anti-inflammatory and antioxidant effects of N. sativa are interconnected, the objective of this review is to compile and elucidate the potential role of N. sativa and its highly potential component thymoquinone (TQ) in CHD and other cardiovascular diseases. Since studies are rare for understanding the mode of action of N. sativa and TQ, the present review and articles for previous studies were searched through PubMed/Medline, Web of Science, Scopus, and Google Scholar databases using relevant keywords. The available randomized clinical trials (RCTs) that examined the effect of N. sativa supplementation on CHD and other cardiovascular diseases were mainly included. Serum parameters, including mainly the inflammatory markers, lipid profile, serum creatinine, leptin, resistin, ESR, hsCRP, vitamin D and other clinical, pathophysiological and biochemical factors, are discussed in association with the N. sativa supplementation in patients with CHD and other cardiovascular diseases. The present review helps understand the beneficial effects of N. sativa in coronary heart disease and other cardiovascular diseases and explores the underlying mechanisms explaining how N. sativa reverts cardiovascular complications back towards normality.
Profile of Peptic Ulcer Disease and its Risk Factors amongst Health Science Students at Umm Al-Qura University
Authors: Alzahrani Muath , Alharthi Abdulrahman , Shanbari Nasser , Bakry Salah , Kambiji Gufran , Nahar Khalid , Alqurashi Alaa , Alharthi Fahad , Elhefny Mohamed
Published: December 2023

Background: Peptic ulcer is a common disease that can lead to several complications, such as bleeding and perforation. Identifying the prevalence and risk factors will help in prevention and early treatment to avoid further issues. Consequently, in this study, we aim to estimate peptic ulcer prevalence and risk factors among health science students at Umm Al-Qura University (UQU). Methods: A cross-sectional study was administered by an online questionnaire in June 2022. The survey was distributed to all health science students who study at Umm Al-Qura University during the 2021-2022 academic year. Results: A total of 342 participants were included in the study. The majority were males, accounting for 72.2%. Our study showed that only 4.4% of respondents had a positive history of peptic ulcer disease. We found that spicy food and Helicobacter pylori were the main risk factors for peptic ulcer disease among participants with 46.7% and 26.7% respectively. Conclusion: Peptic ulcer disease is a worldwide health dilemma. Our study found that 4.4% of the participants have a positive history of peptic ulcers. The main risk factors reported among respondents were spicy food and Helicobacter infection with 46.7% and 26.7% respectively. Educational health efforts are recommended.
Thyroid Cancer Risk Factors and Early Detection Awareness among Umm Al-Qura University Medical Students
Authors: Kambiji Gufran , Almohammdi, Sarah , alneefi Sultan , almadhi Abdulmalk , sindy Basil , alhumaid Abdulrahman , alhothali Omar , Alharthi Abdulrahman , Bannani Sahar
Published: December 2023

Background: Thyroid carcinoma (TC) is the most prevalent head and neck cancer. Pre-clinical students lacked essential knowledge of thyroid cancer. Furthermore, clinical years medical students needed more awareness of thyroid screening and self-examination. Consequently, this study aims to identify the knowledge and understanding of thyroid cancer, among Umm Al-Qura University medical students in Saudi Arabia. Methods: A cross-sectional study was conducted on undergraduate medical students in the third to sixth year of a medical college using an online questionnaire from April to June 2022. Results: A survey of 297 medical students from the 3rd to 6th year found that 46.1% knew all early signs of thyroid cancer, while only 12.5% did not know any diagnostic tools. Most participants (74.4%) knew all desirable candidates for a thyroid cancer screen. 260 (87.5%) students answered positively that any unexplained lump or swelling could be an early sign of cancer. The gender of the participants had a significant correlation with many factors related to student knowledge of thyroid cancer, with gender having a substantial correlation with only two early signs. The student's grade point average (GPA) and academic year also had a significant correlation with many factors related to thyroid cancer knowledge. Conclusion: Thyroid cancer prevalence can be reduced by increasing public awareness and knowledge of risk factors. Students’ knowledge and participation in public education can lead to better results. In addition, increased public awareness about early signs of thyroid cancer can improve overall disease prognosis, morbidity, and mortality.
PENGARUH DEBT TO EQUITY RATIO (DER), TOTAL ASSET TURNOVER (TATO), DAN NET PROFIT MARGIN (NPM) TERHADAP PERTUMBUHAN LABA PADA PERUSAHAAN SUB SEKTOR MAKANAN DAN MINUMAN YANG TERDAFTAR DI BURSA EFEK INDONESIA (BEI) PERIODE 2016 - 2020
Authors: Yolanda Manurung Yolanda Manurung  , Siagian Arifin
Published: December 2023

Setiap perusahaan memiliki tujuan untuk memperoleh pertumbuhan laba dalam usahanya. Pada penelitian ini bertujuan untuk menguji pengaruh Debt to Equity Ratio (DER), Total Asset Turnover (TATO), dan Net Profit Margin (NPM) terhadap Pertumbuhan Laba secara parsial maupun simultan dengan metode pengumpulan data menggunakan data sekunder berupa laporan keuangan pada perusahaan makanan dan minuman yang terdaftar di Bursa Efek Indonesia. Populasi pada penelitian ini sejumlah 33 perusahaan makanan dan minuman yang terdaftar di Bursa Efek Indonesia (BEI) Periode 2016 – 2020. Sampel pada penelitian ini terdapat 13 perusahaan dengan menggunakan teknik sampling purposive sampling. Metode analisis yang digunakan pada penelitian ini adalah Analisis Statistik Deskriptif, Analisis Koefisien Determinasi, dan Analisis Linier Berganda. Hasil dari penelitian ini menunjukkan bahwa secara simultan Debt to Equity Ratio (DER), Total Asset Turnover (TATO), dan Net Profit Margin (NPM) berpengaruh terhadap Pertumbuhan Laba. Secara parsial, Debt To Equity Ratio (DER) berpengaruh terhadap pertumbuhan laba, Total Asset Turnover (TATO) tidakberpengaruh terhadap pertumbuhan laba, dan Net Profit Margin (NPM) berpengaruh terhadap pertumbuhan laba.
PENGARUH MOTIVASI KERJA TERHADAP KEPUASAN KERJA GURU SMA YADIKA SE-JABODETABEK
Authors: Edi Siregar
Published: December 2023

The objective of this research is to assess the effects of teachers’ work motivation on their work satisfaction. The causal study was conducted in YADIKA high schools at Jabodetabek, from January to March 2015, involving a sample of 60 teachers, who had been selected from all the teachers of schools by using the proportional random sampling technique. A survey was applied in this research and the data were analysed with technique by putting variables in a correlation matrix. The results of research reveal direct effects of the work motivation on the work satisfaction. This implies the need to consider the teachers’ work motivation in the strategic plan of YADIKA high schools at Jabodetabek to improve the teachers’ work satisfaction.
PENGARUH GAYA KEPEMIMPINAN, KOMPETENSI DAN KOMITMEN ORGANISASI TERHADAP KINERJA KARYAWAN DI PT PUPUK INDONESIA (PERSERO)
Authors: Agus  , Adella Rohma Daniar
Published: December 2023

This study is aimed to analyze and assess the influence of leadership style, competence and organizational commitment to employee performance Fertilizer Indonesia PT (Persero). This research is a quantitative study with explanatory survey methods and data collection tools used questionnaires. The results of this study concluded that the style of leadership, competence and organizational commitment to employee performance Fertilizer Indonesia PT (Persero), either jointly or individually, where the value of the correlation coefficient kepemimpianan style (X1), competence (X2) and organizational commitment (X3) on the performance of employees is 0,791, that means style kepemimpianan (X 1), competence (X2) and organizational commitment (X3) has a strong relationship to employee performance and test results determinant coefficient (R2) obtained the value of 0.625 which can disimpulakan style kepemimpianan(X1), competence (X2) and organizational commitment (X3) gives a contribution of 62.50%, against an increase in the performance of employees, while the remaining 37.50% is influenced by other factors not examined in this study.
INFORMASI ASIMETRI DALAM PRODUK MUDHARABAH
Authors: Satiri
Published: December 2023

At the beginning of the development of Islamic economics, Islamic scholars hold the principle of Islamic law in economy that is the profit and loss sharing, because interest is forbidden in Islam. The first product called mudharabah, is purely the profit and loss sharing product. The product growth is not really good, even the proportion of the product decreasing compare to other product like murabahah (the cost plus trading). The stagnancy of mudharabah mostly because there is asymetric information on the contract between the capital owner (shohibul mal) and the executive (mudharib). The owner does not know full information about the project that is done by the executive. Therefore many mudharabah contact fail in the middle causing the stagnancy of the development of the product.
PENGARUH MOTIVASI KERJA, KOMPETENSI DAN KOMPENSASI TERHADAP KINERJA KARYAWAN PT HEXING TECHNOLOGY
Authors: Indra Irawan  , Darlius
Published: December 2023

The aims of the research is to knows and analysize the effect of motivation of work, competences and compensation on the performance of PT Hexing Technology’s employees. PT Hexing Technology is the company who manufacturing in Prepaid Electrical Meter Measurement that located in Karawang, West of Java with the total of the employees are 150 employees whereas 118 employees (84%) are emplyees in production department who will be population and sample in this research caused the sampling technic to take a sample is using Sensus Sampling Technic. Meanwhile the design of research is using Quantitative methode. To analyze the effect of the independent variable (motivation of work, competence and compensation) to dependent variable then used of Multiple Linear Regression to knows which the variable that most effected. The research result by using SPSS version 22 shows that the motivation is positifly effected to the employee’s performance is 29,8% which mean that when the motivation increasing then performance getting increase. The competence variable is not effected to the employee’s performance . The compensation is effected to the performance is 25,4% which mean that when the motivation increasing then performance getting increase. Motivation, competence and compensation is simultantly are effected to the employee’s performance around 23,4% which mean that employee’s performance is effected by another factor who is not researched. The result of this research to be able to a guidance for the other parties to improve the performance of the employee. For that need to attention on the motivation of work in the organization. Beside that, need to be done improvement as continuously by competences and compensation to tha all employees.
Pengaruh Budaya Organisasi, Kompetensi Dan Kompensasi Terhadap Kinerja Karyawan Dengan Kepuasan Kerja Sebagai Variabel Intervening Di Rumah Sakit Cikunir, Bekasi
Authors: Vicli Robert CL  , Sitorus Guston
Published: December 2023

Penelitian ini bertujuan untuk mencari pengaruh antara budaya organisasi, kompetensi dan kompensasi terhadap kinerja karyawan RS Cikunir, dengan kepuasan kerja sebagai variabel interveningnya. Populasi dalam penelitian ini adalah seluruh karyawan RS Cikunir sebanyak 180 orang dengan sampel sebanyak 124 orang. Pengambilan sampel dengan teknik Propotional Random Sampling . Desain penelitian menggunakan penelitian kausal Kuantitatif (meneliti pada populasi atau sampel tertentu, pengumpulan data menggunakan instrument penelitian, analisis data bersifat kuantitatif atau statistik, dengan tujuan untuk menguji hipotesis yang telah ditetapkan). Hasilnya budaya organisasi berpengaruh secara langsung sebesar 0,474 terhadap kepuasan kerja, kompetensi berpengaruh langsung sebesar -2,291 terhadap kepuasan kerja, kompensasi berpengaruh langsung sebesar 0,224 terhadap kepuasan kerja. Kepuasan kerja berpengaruh langsung sebesar 0,194 terhadap kinerja. Budaya organisasi berpengaruh langsung sebesar 0,375 terhadap kinerja karyawan, kompetensi berpengaruh langsung sebesar -1,226 terhadap kinerja karyawan dan kompensasi berpengaruh langsung sebesar 0,100 terhadap kinerja karyawan.
Pengaruh Budaya Organisasi dan Lingkungan Kerja Terhadap Kinerja Karyawan Melalui Disiplin Kerja Sebagai Variabel Intervening
Authors: Sharah  , Darlius
Published: December 2023

Penelitian menggunakan metode sensus, di sebar untuk observasi. Sedangkan data yang digunakan adalah analisis jalur dan diolah dengan program SPSS versi 26 .Penelitian ini menyimpulkan bahwa terdapat pengaruh langsung budaya organisasi terhadap disiplin kerja, tidak terdapat pengaruh langsung lingkungan kerja terhadap disiplin kerja, tidak terdapat pengaruh langsung budaya organisasi terhadap kinerja karyawan, tidak dapat pengaruh langsung lingkungan kerja terhadap kinerja karyawan , terdapat pengaruh langsung disiplin kerja terhadap kinerja karyawan.
Abondance relative de l’azote dans quatre nébuleuses galactiques Impact sur les énergies renouvelables à partir de l’étoile Soleil (NGC 2818, He 2-130, NGC 2346, NGC 3132)
Authors: Kherous Abdelghani , Benyoucef Boumediene
Published: December 2023

La détermination de l’abondance en éléments plus lourds que l’hydrogène que l’on trouve à l’intérieur d’une nébuleuse planétaire (N.P) est essentielle à une meilleure compréhension des processus lui ayant donné naissance. En effet, ces éléments comme l’azote (N), l’oxygène (O), le carbone (C) ont été injectés dans l’enveloppe d’hydrogène de l’étoile progéniteur telle que le soleil lorsque cette dernière se trouvait sur la branche asymptotique des géantes (phase AGB), juste avant l’éjection de la nébuleuse. Cette étude permet de relier l’abondance de certains éléments comme l’azote produite par nucléosynthèse, la masse du progéniteur et la morphologie de la nébuleuse planétaire (Peimbert, 1998; Peimbert et Torrès-Peimbert, 2003). Nous présenterons quelques aspects de cette étude avec NGC 2818, He 2-130, NGC 2346, NGC 3132. L’intérêt d’une telle étude revêt un impact certain dans la vie biologique pour les satellites de ces étoiles. Cette contribution à l’étude des nébuleuses a des conséquences appréciables dans le domaine des énergies renouvelables.
PREVIS 1.0: Easy software for simulation and sizing of solar water heating system
Authors: Ahachad Mohammed , Dkiouak Rachid , Ajdour Mounia , El Metoui Mustapha , Belarbi Rafik
Published: December 2023

In this paper we are interested in developing new and easy software for the sizing of a solar installation of hot water production. Such installation is successful only if its determination, its conception and its realization are made with care. This software that we baptized PREVIS 1.0 supplies, for fixed operating conditions, the dimensions of each component of the installation without having to use tables of data or diagrams. PREVIS 1.0 will allow the engineers and the fitters of solar installations of hot water production to make a good sizing in a simple and precise way. Moreover, PREVIS could be coupled to TRNSYS code and this is one of its highlights. Typical university campus for a 240 students was considered as case study. The hot-water demand temperature (45°C) is controlled by a conventional fuel auxiliary heater and a tempering valve. The fluids circulate by pumps activated by electricity. Annual energy performance, in terms of solar fraction, was calculated for Tangier.
Integral screen printed solar cells panel
Authors: Boukennous Yacine , Benyahia Bedra , Charif Mohamed  Ramzi , Elamrani Abdelkader , Moussa Mohamed Fathi
Published: December 2023

This paper summarizes our activities in the field of process technologies for the fabrication of photovoltaic devices. The study is strongly focused on the integral screen printing technique for the fabrication of single crystal solar cells, using standard equipments available in our laboratory. The challenging aim of this survey is to attain encouraging results with very modest means. Knowing that any problem coming unexpectedly with the cell structure may influence more than one electrical parameter and as the process consists on several steps; we will stop at each stage and discuss the factors, which affect it. In pursuit of this goal a doping phosphorus1, a back contact silver-aluminium2, a front side silver3 and an anti reflective coating4 commercial pastes are printed and fired. The 36 fully screen printed solar cells connected in series offer a module with power output of 31 Watts5 and 11 % as efficiency.
Dielectric properties of flash - evapored CuInSe2 photovoltaic thin films
Authors: Abdelali Mouaaid , Zair Razika , Belal Tahar , Llinares Claude
Published: December 2023

In this paper, we have analyzed the dielectric functions of CuInSe2 photovoltaic thin films, .Thus we have obtained the dispersion spectra corresponding to and from spectrophotometry measurements for different thicknesses of thin films.
Méthanisation des eaux résiduaires de la production des levures fourragères dans un biofiltre thermophile
Authors: Amrani Moussa , Tazrouti Nassima
Published: December 2023

La méthanisation des eaux résiduaires de la production des levures fourragères sur hydrolysat de l’alfagrass (Stepia Tenacissima), est réalisée sur des biofiltres de laboratoire. Afin d’immobiliser les bactéries méthanogènes thermophiles, plusieurs matériaux sont testés en qualité de support. Un biofilm de la microflore anaérobie méthanogène est différemment développé à la surface de tous les matériaux - supports. Le biofiltre au support en fibres synthétiques en forme de frange a montré le meilleur temps de démarrage (40 jours). Avec ce biofiltre, la fermentation a atteint l’état stationnaire en terme de production du biogaz à 2,1 m3/m3/jour avec une charge volumique de 8,6 kg DCO/m3/jour. Les performances du biofiltre ont augmenté, lorsqu’on a diminué la charge volumique jusqu’à 6,9 kg DCO/m3/jour en maintenant le temps de séjour hydraulique à 24 heures. Dans ces conditions, la biodégradabilité de la DCO a atteint un taux de réduction maximum de 84,7 % et une production de biogaz de 0,51 m3/kg de DCO éliminée/jour avec une teneur de 70 % en CH4.
Modélisation des propriétés électriques et caractérisation des panneaux photovoltaïques
Authors: Mrabti Tarik , El Ouariachi Mostafa , Tidhaf Belkassem , Kassmi Kamal , Chadli Elhassane , Kassmi Khalil
Published: December 2023

Dans ce papier, nous analysons la modélisation dans le logiciel ‘Pspice’ et la caractérisation électrique des panneaux photovoltaïques (PV) actuellement commercialisés. En tenant compte des caractéristiques électriques fournies par le fournisseur, nous déduisons, à partir du simulateur ‘Pspice’, les grandeurs électriques optimales du panneau PV (courant, tension et puissance) en fonction des conditions météorologiques (éclairement, température,…). Dans le cas du panneau SP75, nous avons déduit, à partir de l’analyse des résultats de sa caractérisation électrique que ses grandeurs électriques optimales sont inférieures de 15 % par rapport à celles déduites par les caractéristiques électriques fournies par le fabricant. Nous avons montré que les différents paramètres électriques du panneau PV nécessitent un réajustement qui est alors nécessaire pour optimiser le fonctionnement des panneaux PV dans un système PV muni d’une commande MPPT.
Amélioration de la performance d’un cycle frigorifique à absorption-diffusion NH3-H2O-H2
Authors: Makhlouf Mohammed , Kherris Sahraoui , Chadouli Rachid , Asnoun Ahmed
Published: December 2023

La recherche de nouvelles sources d’énergie sera probablement la préoccupation majeure de la prochaine génération d’ingénieurs et de chercheurs. Nous nous sommes intéressés dans cette étude, à développer un code de calcul permettant la détermination des paramètres énergétiques et voir l’impact de l’hydrogène sur l’industrie des machines frigorifiques à absorption, en particulier sur la non consommation d’électricité. Notre présente étude, a permis une nette amélioration du COP du CAD. Le gain obtenu entre notre étude et Zohar et al. est de 0.01038 (COP en fonction de la concentration de la solution riche et de la température de générateur), est de 0.00602 (COP en fonction de la température de générateur et la concentration de la solution pauvre).
Numerical approach for performance study of hybrid PV/Thermal collector
Authors: Boubekri Mahmoud , Chaker Abla , Cheknane Ali
Published: December 2023

According to their thermophysical properties, the solar collectors using the working fluid (air, water) show considerably poor efficiency. In this paper, we study the combination of the collector with a photovoltaic module as an efficient method for improving the system performance, particularly the electrical and thermal performance. The mathematical model presented here is based on the energy transfer phenomenon within the various components of the collector. Thus, the transfer equations discretization is carried out using the finite difference method. Our results clearly show the direct impact of various parameters, in particular the inclination angle of the collector and the flow mass rate, on the overall efficiency of the collector. The proposed approach achieves a significant efficiency.
Le confort thermique entre perception et évaluation par les techniques d’analyse bioclimatique - Cas des lieux de travail dans les milieux arides à climat chaud et sec-
Authors: M’Sellem Houda , Alkama Djamel
Published: December 2023

Le confort est une notion globale: chaleur et froid, lumière, bruit, paysage, eau, verdure, prestige…. et autre, sont autant d’éléments définissant plusieurs paramètres climatiques, esthétiques, psychologiques du confort. Le confort est également la sensation subjective qui n’existe pas en lui-même. Ce n’est que par l’inconfort qu’on peut l’apprécier. Cette appréciation est différente selon la société et pour une même société suivant les individus. Des chercheurs commencent à défier l’hypothèse d’universalité, et à discuter que le fait de ne pas prendre en compte les dimensions culturelles, sociales, économiques et climatiques dans l’évaluation du confort, conduit à une exagération dans la définition des besoins pour le chauffage et la climatisation, c’est grâce à l’application universelle des outils d’évaluation du confort thermique qu’un inconfort thermique important est perçu par les sujets considérés. De ce fait, il n’existe pas de combinaison parfaite de conditions de confort du moment que celles-ci ne sont pas forcement reliées au contexte, qu’il y’a interaction entre les sensations et différence d’appréciation d’un individu à un individu, et d’une société à une autre. Toutefois, les définitions théoriques de la notion de confort s’accordent toutes sur l’importance du confort thermique. Celui-ci constitue le sujet du présent article. En effet des travaux récents sur la notion de confort adaptatif mettent en avant les variations du lieu et du temps individuelles, conduites par des stratégies personnelles qui peuvent être d’ordre physiologique, psychologique, social, culturel et comportemental. A l’inverse des réponses physiologiques qui peuvent être mesurées de manière objective, la détermination des réponses subjectives des sens dépend de la propre évaluation de la personne soumise à un environnement donné. Cette évaluation n’est pas unique, mais varie avec les individus, et également pour un même individu selon différentes périodes. Entre objective et subjective la détermination de la notion du confort thermique et la finalité du travail est d’arriver à améliorer la méthode d’évaluation du confort thermique par l’analyse des différents paramètres intervenants quantitativement et qualitativement. Donc, l’accent sera mis sur l’évaluation réelle du confort thermique dans les lieux de travail de différents types et d’une zone concernée par un climat extrême, dans le but d’adopter des solutions accessibles aux architectes, avec des moyens qui leur sont familiers.
Modèle de calculs des coefficients d’absorption théorique de la cellule solaire n-CdS/p-CdTe
Authors: Niasse Oumar A. , Mbengue Babacar , BA By A. , Youm Issakha , Ndiaye Abdoulaye M.
Published: December 2023

Dans cet article, des modèles théoriques de détermination du coefficient d’absorption de semi-conducteur sont proposés à partir de différentes méthodes de calcul. Le modèle de la fonction diélectrique, ainsi que ceux de l’Oscillation Harmonique (HOA), du Point Critique Standards (SPC) [2] et de Rakshani ont été modélisé sur la bande d’énergie de 1.1 - 5.7 eV. Les résultats obtenus à partir de ces modèles sont à la base du calcul du rendement quantique interne d’une cellule solaire CdS/CdTe et comparés avec ceux de mesures de rendement quantique de deux cellules solaires fabriquées au Laas.
Mise au point d’une régulation floue pour serre agricole à énergie solaire
Authors: Aït Cheikh Mohamed Salah , Hadj Aïssa Boubakeur , Malek Ali , Becherif Mohamed
Published: December 2023

Le changement de la politique du monde vers une autre source d’énergie qui remplacerait les énergies fossiles ‘pétrole et gaz’ est une obligation qui est imposée par les derniers événements, tels que les changements climatiques, l’effet de serre, et l’instabilité des prix du pétrole. Les énergies renouvelables sont envisagées comme étant les meilleures solutions pour résoudre ces problèmes. Ce travail porte sur l’utilisation de l’énergie photovoltaïque dans les serres agricoles qui jouent un rôle important dans le domaine de l’agronomie. L’objectif de cette étude est de concevoir et d’implémenter des contrôleurs flous sur une carte électronique DSP dont le rôle est la gestion de l’énergie électrique et le contrôle du climat dans la serre.
Modélisation, caractérisation et analyse du comportement dynamique des transferts de chaleur à travers la paroi en polyéthylène et en verre des serres agricoles
Authors: Bendimerad Samya , Bibi-Triki Nacereddine , Abène Abderrahmane , Draoui Belkacem , Benramdane Mohammed
Published: December 2023

La serre tunnel agricole classique est largement répandue dans les pays méditerranéens malgré les insuffisances qu’elle présente, notamment la surchauffe pendant le jour et le refroidissement nocturne intense, qui parfois se traduit par l’inversion thermique interne. La serre chapelle habillée en verre est relativement plus performante, mais son évolution reste lente en raison de son coût d’investissement et son amortissement. La serre agricole a pour objectifs de créer un microclimat favorable aux exigences et à la croissance des plantes à partir des conditions climatologiques environnantes ; de produire en fonction des calendriers culturaux des fruits, légumes et fleurs hors saison à bon marché et largement disponibles le long de l’année. Elle est définie par son architecture structurelle et fonctionnelle, par la qualité optique, thermique et mécanique de sa paroi et par les moyens techniques d’accompagnement. La serre est considérée comme un milieu confiné où plusieurs composantes s’échangent entre elles et dont les principaux facteurs intervenant sont: la lumière, la température et l’humidité relative. La culture protégée s’échauffe bien plus qu’à l’air libre grâce à la présence de la paroi faisant barrière aux influences néfastes des vents et des variations climatiques environnantes, ainsi qu’à la réduction de la convection de l’air intérieur. Cet état d’évolution thermique est fonction du degré d’étanchéité de la couverture et de ses caractéristiques physiques, pour être transparente aux rayonnements solaires, absorbante et réfléchissante des rayonnements infrarouges émis par le sol, d’où l’effet de piégeage des radiations solaires autrement appelé «effet de serre». Nous proposons dans cet article la modélisation du système serre dynamique, la caractérisation et l’analyse du comportement thermique de la paroi des deux serres expérimentales, l’une en polyéthylène (serre tunnel) et l’autre en verre (serre chapelle) à travers l’expérimentation et la simulation couronnées enfin par l’identification de l’évolution du coefficient (K) des déperditions thermiques à travers la paroi.
Etude expérimentale et modélisation du séchage de boues générées par l’épuration des eaux usées
Authors: Bennamoun Lyes , Leonard Angélique
Published: December 2023

Dans ce travail, des résultats expérimentaux relatifs au séchage de boues générées dans deux stations d’épuration d’eaux usées sont présentés. Les expériences ont été effectuées dans un sécheur convectif reproduisant le fonctionnement d’un sécheur à bandes. Pour chaque essai, 1 kg de produit humide est extrudé en cylindres de 12 mm de diamètre sur une grille perforée au travers de laquelle l’air chaud circule. Le produit est séché jusqu’à élimination de la totalité de l’humidité initialement présente. Les résultats obtenus montrent que le procédé est affecté par plusieurs paramètres, tout particulièrement les conditions externes, c’est-à-dire les propriétés de l’air de séchage, comme la température, mais aussi par des conditions internes, c’est-à-dire la nature des boues. Les résultats expérimentaux ont été modélisés. Pour le 1er type de boues, le modèle de Page a présenté les meilleurs résultats avec un coefficient de corrélation égal à 0.9996 et une erreur standard égale à 0.0081. Cependant, pour le 2ème type de boues, le modèle polynomial de 4ème degré donne des résultats comparables au modèle de Page, avec des coefficients de corrélation qui changent avec la température de l’air, mais qui avoisinent l’unité et avec des erreurs standard allant de 0.0037 et 0.081.