bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the effects of various light spectra on microgreen species
Authors: Jasenovska Lucia , Brestic Marian , Barboricova Maria , Ferencova Jana , Filacek Andrej , Zivcak Marek
Published: June 2024

Light conditions, such as spectral composition, intensity and photoperiod, can affect the photosynthetic apparatus and content of beneficial bioactive compounds. The experiments realised under randomised experimental design tested seedlings of 21 genotypes, including 12 genotypes of the Brassicaceae family, lettuce, amaranth, onion, spinach, fenugreek and two beet and two basil genotypes, which were cultivated in three light environments under narrow-band red and blue light-emitting diodes (LEDs) and broad-band white LEDs. Responsiveness to light spectra was assessed based on fresh and dry weight, total chlorophyll and carotenoid contents and non-invasive assessment of specific compounds using fluorescence excitation ratios. In white light, we observed a higher fresh weight compared to that in monochromatic environments, especially compared to blue light. In most of the species, blue and white light had a positive effect on the concentration of chlorophyll and carotene in plants compared to red light. Blue light was associated with the highest values of chlorophyll excitation ratios, indicating a significant increase in flavonoids and anthocyanin contents. Individual microgreens responded differently in all assessed traits, especially in fluorescence ratios. We also observed the clustering of microgreens with similar responses to LED light spectra. In conclusion, in most plant species, multispectral white LEDs positively influenced quantitative and qualitative traits compared to the most frequently used red LEDs. Blue light slightly improved quality, but suppressed growth. Nevertheless, some species responded differently, emphasising the need to optimise the light to improve the microgreens’ production and nutritional value.
Evaluation of work-related health and safety risks associated with hairdressers in Nairobi County, Kenya City
Authors: Koskei Winnie , Warutere Peterson , Awuonda Bernard
Published: June 2024

Hairdressers are exposed to awkward posture, prolonged standing, long working hours and chemical hazards capable of causing adverse health effects. The present study aimed to evaluate hairdressers' safety and health risks. The study adopted a descriptive cross-sectional and analytical design. Systematic random sampling was used to select salons and hairdressers. Closed and open-ended questionnaires were distributed to 286 hairdressers who consented to participate in the study. An observation checklist, WISHA caution checklist, thermometer, light meter and noise level meter were used to collect data in the sampled salon. Data were analyzed descriptively and with regression analysis. It was found that the average space for salons was 8.79 m2, and 68.5% of hairdressers work for long hours (11-12 hours). It was established that 5.48% of salons have an adequate amount of light and that 8.22% of salons have high temperatures. Aprons were the most used personal protective equipment by hairdressers. Manual handling of salon equipment and awkward posture cause musculoskeletal disorders among hairdressers. Their odd ratios impacting the health and safety of hairdressers were 2.706 and 2.728, respectively. The study reveals that hairdressing salon designs, space, lighting, and temperatures affect the health and safety of hairdressers. The hours off work and minimal or no breaks also have negative impacts on the health and safety of hairdressers
Safety measures and sanitation facilities of the fruit vendors during COVID-19 in Bangladesh: a cross-sectional study
Authors: Kabir Md. Ripul , Toru Mst. Taslima Khatun , Faruk Golam Faruk
Published: June 2024

This study aimed to find the factors affecting the fruit vendor’s safety measures and sanitation facilities during COVID-19 in Bangladesh. A quantitative research design was used to conduct this study. Random sampling techniques were executed to collect data from 416 fruit vendors through a field survey. The study reveals that 87% of the fruit vendors took safety measures during COVID-19. Most of them had better sanitation facilities at home compared to their workplaces. Their safety measures and sanitation facilities were associated with socioeconomic backgrounds. Age, type of house, place of business, and receiving financial support influenced fruit vendors’ safety measures. Sanitation facilities at home were affected by their sex, schooling, types of houses, and working hours.  Types of houses, family income, and business duration impacted the workplace's sanitation facilities. Their socio-demographic and economic situations affected fruit vendors' safety measures and sanitation facilities during COVID-19. Fear of death and government market mechanisms also might have played a significant role in measuring the different steps against Coronavirus infection. Health and hygiene rules prescribed by the authorities should be followed strictly to avoid dire situations during the pandemic. Both government and non-government initiatives should be given the utmost priority to create sanitation awareness, whether about personal cleanliness or workplace hygiene and paired with financial support.
Occupational accidents in Malta and the role of the occupational health and safety authority: A twenty-year analysis
Authors: Fiorini Luke Anthony , Camilleri Liberato , Gauci Mark
Published: June 2024

The Occupational Health and Safety Authority (OHSA) was established in Malta in 2002. Since then, trends indicate that non-fatal accidents have decreased in Malta, while changes in fatal accidents are less clear. Since these trends have not been statistically investigated before, this study aims to do so. The study also aims to analyse the link between specific OHSA deterrent measures and changes in non-fatal accidents. A database compiled by the OHSA on the frequency of accident statistics in Malta and OHSA deterrent measures between 2002 and 2022 was analysed. The study demonstrated that the incidence of fatal and non-fatal accidents decreased significantly during the analysed period. The incidence of non-fatal accidents was more common in the transport and storage sector, the construction sector and the manufacturing sector. Fatal accidents were most frequent within the construction sector. Fatal accidents were common among the self-employed and foreign workers. Deterrents, especially those related to inspections and fines, were significantly associated with a decrease in fatal and non-fatal accidents. The study underscores those accidents have declined significantly since the establishment of the OHSA and demonstrates the benefits of specific deterrent measures. Continued focus is required on specific areas, including the construction sector, self-employed workers and foreign workers.
HEAT TRANSFER: NUMERICAL MODELLING WITH EES APPLICATIONS
Authors: Oliveira Armando
Published: June 2024

Most heat transfer problems are complex, in the sense that in most cases there are no analytical (exact) solutions to obtain temperature fields or heat transfer rates/coefficients. Thermal energy systems, and in general energy systems, involve heat transfer processes and, therefore, also require approximate solutions. The approximate solution to non-linear systems of algebraic equations or differential equations is typically obtained with numerical methods, which became increasingly popular with the advent of affordable and fast computing. Second generation computer programs, such as Engineering Equation Solver (EES), do not even require conventional computer programming to solve mathematical problems, being based on the use of internal algorithms. The simulation of heat transfer processes and thermal energy systems widely benefits from such tools, allowing fast approximate solutions, and also the study of alternative processes/systems through the use of parametric analyses. This book is dedicated to the numerical simulation of thermal energy systems, with the use of the EES software tool. However, prior to the use of software tools, problem analysis is fundamental, in order to decide which type of model and degree of accuracy is acceptable. In this book, several heat transfer and thermal system problems are presented, coming from the energy engineering practice. After problem analysis and discussion, a numerical model is applied and solutions are obtained with the use of EES. Computed results are discussed, always trying to assess the effect of model assumptions on the results, and obtain conclusions which might be useful for the design of those systems. The book starts by revisiting some well-known numerical methods to solve equations that appear on most practical cases (chapter 1). Global and distributed models are distinguished. In the case of distributed models, the finite volumes approach is favoured. A brief presentation of the EES software follows (chapter 2); however, this book does not replace the software manual, and it is advisable that the reader has some prior experience of EES. Chapters 3 and 4 present several examples of thermal system modelling, with chapter 3 dedicated to global modelling and chapter 4 to distributed modelling.
Navigating the post-pandemic frontier: Exploring factors influencing technology adoption in Indonesian microenterprises
Authors: Thaha Abdurrahman Rahim , Antoro Aji Fajar Suryo , Salmon Indra Pratama Putra , Purnamasari Rita
Published: June 2024

This study investigates the intricacies of technology adoption dynamics in the post-pandemic Indonesian microenterprise landscape. Using the Technology, Organization, Environment (TOE) framework and leveraging SmartPLS analysis on a sample of 300 microenterprises. This study reveals the impact of environmental, organizational, and technological factors and their profound influence on technology adoption decisions. The findings explain the compelling and affirmative impact of environmental factors, underscoring the critical role of regulatory support and economic conditions in driving technology adoption initiatives. Meanwhile, organizational factors show a positive albeit relatively weaker relationship, emphasizing the need for micro-enterprises to develop organizational capacity and foster a culture of innovation. Technological factors emerged as decisive, indicating that innovative solutions are an indispensable catalyst to drive technology adoption. These insights have profound implications for policymakers, microenterprise owners, and technology pioneers, offering strategic pathways to foster technology adoption, enhance resilience, and catalyze economic revival in the microenterprise sector.
Studi ini menyelidiki seluk-beluk dinamika adopsi teknologi dalam lanskap usaha mikro Indonesia pasca pandemi. Menggunakan kerangka Technology, Organization, Environment (TOE) dan memanfaatkan analisis SmartPLS pada sampel 300 usaha mikro. Studi ini mengungkapkan dampak faktor lingkungan, organisasi, dan teknologi serta pengaruhnya yang besar terhadap keputusan adopsi teknologi. Temuan ini menjelaskan dampak yang menarik dan afirmatif dari faktor lingkungan, menggarisbawahi peran penting dari dukungan peraturan dan kondisi ekonomi dalam mendorong inisiatif adopsi teknologi. Sementara itu, faktor organisasi menunjukkan hubungan yang positif meskipun relatif lemah, sehingga menekankan perlunya usaha mikro untuk mengembangkan kapasitas organisasi dan menumbuhkan budaya inovasi. Faktor teknologi menjadi faktor penentu, yang menunjukkan bahwa solusi inovatif merupakan katalis yang sangat diperlukan untuk mendorong adopsi teknologi. Wawasan ini mempunyai implikasi besar bagi para pembuat kebijakan, pemilik usaha mikro, dan pionir teknologi, yang menawarkan jalur strategis untuk mendorong adopsi teknologi, meningkatkan ketahanan, dan mendorong kebangkitan ekonomi di sektor usaha mikro.
Pengaruh lingkungan kerja, stres kerja, dan kepuasan kerja terhadap turnover karyawan PT XYZ
Authors: Wardanti Setya Ayu , Rahardjo Mukti
Published: June 2024

The study was to determine the effect of the work environment, job stress, and job satisfaction on employee turnover at PT XYZ. The conditions, actions, and circumstances of an employee are very important for company performance. One of the things that cannot be avoided in employee behavior is the desire to move (turnover). A good working environment and high job satisfaction will affect the decrease in turnover, while high job stress will affect the increase in turnover. The population in this research is employees at PT XYZ. The samples in this research were 62 employees using the Slovin method. The method of data collection using questionnaires. To analyze data using descriptive analysis and the percentage of regression analysis using SPSS. Based on the research results, it is evident that the negative effect of a significant partial work environment, job satisfaction toward employee turnover at PT XYZ, and the positive effect of job stress toward employee turnover at PT XYZ.
Penelitian ini bertujuan untuk mengetahui pengaruh lingkungan kerja, stres kerja, dan kepuasan kerja terhadap turnover karyawan pada PT XYZ. Kondisi, tindakan, dan keadaan seorang karyawan sangat penting bagi kinerja perusahaan. Salah satu hal yang tidak dapat dihindari dalam perilaku pegawai adalah adanya keinginan untuk berpindah (turnover). Lingkungan kerja yang baik serta kepuasan kerja yang tinggi akan berpengaruh pada penurunan tingkat turnover karyawan, sedangkan stres kerja yang tinggi akan berpengaruh pada meningkatnya turnover karyawan. Populasi dalam penelitian ini adalah karyawan PT XYZ. Jumlah sampel yang digunakan dalam penelitian ini sebanyak 62 karyawan, menggunakan metode Slovin. Metode pengumpulan data menggunakan kuesioner. Analisis data menggunakan analisis deskriptif dan analisis regresi dengan bantuan program SPSS. Berdasarkan hasil penelitian, diketahui terdapat pengaruh negatif signifikan secara parsial lingkungan kerja dan kepuasan kerja terhadap turnover karyawan PT XYZ, serta pengaruh positif signifikan secara parsial stres kerja terhadap turnover karyawan PT XYZ.
Pengaruh web quality dan trust terhadap minat beli (Studi e-commerce site dan online marketplace di Jakarta)
Authors: Surja Simon Samuel , Maupa Haris
Published: June 2024

This research aims to determine the influence of website quality and trust on purchase intention using two different subjects. This type of research is descriptive research by collecting primary data through questionnaires and secondary data originating from previous research. The sample collection technique is purposive sampling with a non-probability method. The number of respondents collected was 154 respondents. The results of this research show that website quality influences purchase intention for both subjects, trust influences purchase intention for subjects who go through Tokopedia, while trust does not affect purchase intention for subjects who go through the official Samsung website. The implication of this research is to ensure that the quality of the website functions well, conveys complete information, and is well designed. Adjust marketing strategies to encourage other supporting factors besides trust.
Penelitian ini bertujuan untuk mengetahui pengaruh dari kualitas website dan kepercayaan terhadap minat beli dengan menggunakan dua subjek yang berbeda. Jenis penelitian merupakan penelitian deskriptif dengan mengumpulkan data primer melalui kuesioner dan data sekunder yang berasal dari penelitian sebelumnya. Teknik pengumpulan sampel adalah purposive sampling dengan metode non-probability. Jumlah responden yang terkumpulkan sebanyak 154 responden. Hasil dari penelitian ini adalah kualitas website berpengaruh terhadap minat beli bagi kedua subjek, kepercayaan berpengaruh terhadap minat beli bagi subjek yang melalui Tokopedia, sedangkan kepercayaan tidak berpengaruh terhadap minat beli bagi subjek yang melalui website resmi Samsung. Implikasi dari penelitian ini adalah memastikan kualitas website berfungsi dengan baik, menyampaikan informasi lengkap dan didesain dengan baik. Menyesuaikan strategi pemasaran agar dapat mendorong faktor pendukung lainnya selain kepercayaan.
Dampak kredibilitas selebriti dan pemasaran media sosial terhadap niat pembelian: Peran mediasi kredibilitas merek
Authors: Naibaho Hanny Veramayanti Br , Cokki Cokki
Published: June 2024

This study aims to examine the influence of celebrity credibility and social media marketing on the purchase intention of Pocari Sweat, with brand credibility as a mediator. The research employs a survey method with an online questionnaire as the data collection tool, and the sample consists of 484 Pocari Sweat consumers in Indonesia selected using the convenience sampling technique. Data analysis is conducted using PLS-SEM. The results of the study indicate that celebrity credibility has a positive impact on the purchase intention and brand credibility of Pocari Sweat. Social media marketing also has a positive influence on the purchase intention and brand credibility of Pocari Sweat. Brand credibility positively affects the purchase intention of Pocari Sweat. Brand credibility mediates the influence of celebrity credibility and social media marketing on the purchase intention of Pocari Sweat. This research contributes both theoretically and practically to our understanding of celebrity credibility, social media marketing, brand credibility, and purchase intention. Practical implications include recommendations for Pocari Sweat management to design effective marketing strategies by leveraging credible celebrities, enhancing brand credibility, and maximizing the potential of social media marketing.
Penelitian ini bertujuan untuk menguji pengaruh kredibilitas selebriti dan pemasaran media sosial terhadap niat beli Pocari Sweat, dengan kredibilitas merek sebagai mediasi. Penelitian ini menggunakan metode survei dengan kuesioner online sebagai alat pengumpulan data, dan sampel terdiri dari 484 konsumen Pocari Sweat di Indonesia yang dipilih dengan menggunakan teknik convenience sampling. Analisis data dilakukan menggunakan PLS-SEM. Hasil penelitian menunjukkan bahwa kredibilitas selebriti berpengaruh positif terhadap niat beli dan kredibilitas merek Pocari Sweat. Pemasaran media sosial berpengaruh positif terhadap niat beli dan kredibilitas merek Pocari Sweat. Kredibilitas merek berpengaruh positif terhadap niat beli Pocari Sweat. Kredibilitas merek memediasi pengaruh kredibilitas selebriti dan pemasaran media sosial terhadap niat beli Pocari Sweat. Penelitian ini memberikan kontribusi baik secara teoritis maupun praktis terhadap pemahaman kita tentang kredibilitas selebriti, pemasaran media sosial, kredibilitas merek, dan niat beli. Implikasi praktis termasuk rekomendasi bagi manajemen Pocari Sweat untuk merancang strategi pemasaran yang efektif dengan memanfaatkan selebriti yang kredibel, meningkatkan kredibilitas merek, dan memaksimalkan potensi pemasaran media sosial.
Pemilihan destinasi kuliner melalui TikTok bagi Generasi Z di Indonesia: Model UTAUT2
Authors: Klarissa Kezia , Josephine Abigail , Kristanti Monika
Published: June 2024

This study adopted the UTAUT2 model to examine the influence of TikTok on behavioral intentions and the actual behavior of generation Z in Indonesia in choosing culinary destinations. In this research, behavioral intention has the mediation role between the use of TikTok and actual behavior. This model used 6 variables from UTAUT2: performance expectancy, effort expectancy, social influence, facilitating conditions, hedonic motivation, and habit; and added 1 variable from the extended model of UTAUT2: perceived trust. This descriptive study involves quantitative data using a questionnaire as a data collection method. The method of sampling is judgmental where the respondents are generation Z aged 18 to 25 years old that have TikTok accounts and are active users of TikTok. The researcher distributed questionnaires to 398 respondents online and onsite at some universities and café in Surabaya, and the data was processed using SmartPLS 4. The results found that performance expectancy, social influence, habit, and perceived trust positively significantly affect behavioral intention; habit and behavioral intention positively significantly affect the actual behavior of generation Z to use TikTok in choosing culinary destinations. These findings can be a guide for culinary business owners to increase the use of the TikTok platform as a marketing strategy.
Penelitian ini mengadopsi model UTAUT2 untuk meneliti pengaruh penggunaan TikTok terhadap behavioral intention dan actual behavior generasi Z di Indonesia dalam memilih destinasi kuliner. Adapun behavioral intention berperan sebagai variabel mediasi. Model ini menggunakan 6 variabel dari UTAUT2, yaitu performance expectancy, effort expectancy, social influence, facilitating conditions, hedonic motivation, habit, dan menambahkan 1 variabel dari extended model of UTAUT2: perceived trust. Jenis penelitian adalah kuantitatif. Peneliti menggunakan judgmental sampling, yaitu generasi Z yang berusia 18-25 tahun yang mempunyai akun TikTok dan merupakan pengguna aktif TikTok. Peneliti menyebarkan kuesioner kepada 398 responden baik secara online maupun onsite di lingkungan kampus dan kafe, kemudian data diolah menggunakan software SmartPLS 4. Hasil ditemukan bahwa variabel perceived trust, habit, social influence, dan performance expectancy secara positif signifikan memengaruhi behavioral intention; habit dan behavioral intention secara positif signifikan memengaruhi actual behavior generasi Z untuk menggunakan TikTok dalam memilih destinasi kuliner. Temuan ini dapat menjadi panduan bagi pemilik usaha kuliner untuk meningkatkan penggunaan platform TikTok sebagai strategi pemasaran.
Pengaruh leadership style dan organizational culture terhadap employee performance (Studi kasus pada karyawan PT X Provinsi Maluku): Innovative work behavior sebagai variabel mediasi
Authors: Sitanaya Kevin Adriel , Rahardjo Mukti
Published: June 2024

This research aims to analyze the influence of leadership style and organizational culture on employee performance at PT X in the Maluku Province, with the mediation of innovative work behavior. Employing a descriptive approach with quantitative analysis, the research involves 92 respondents who are employees of PT X. The sampling method used in this research is non-probability sampling, where the sample is not randomly selected. Data collection is conducted through the distribution of questionnaires, followed by processing and analysis with the PLS-SEM method. The results indicate that leadership style significantly affects employee performance, both directly and mediated by innovative work behavior, while organizational culture only influences employee performance when mediated by innovative work behavior.
Penelitian ini bertujuan untuk menganalisis pengaruh gaya kepemimpinan dan budaya organisasi terhadap kinerja karyawan PT X di Provinsi Maluku dengan mediasi perilaku kerja inovatif. Penelitian ini bersifat deskriptif dengan analisa kuantitatif terhadap 92 responden yang merupakan karyawan PT X. Pada penelitian ini, sampel diambil dengan cara non probability sampling, artinya sampel tidak dipilih secara acak. Pengumpulan data dilakukan dengan menyebarkan kuesioner kemudian diolah dan dianalisis dengan metode PLS-SEM. Hasil penelitian ini menunjukkan bahwa gaya kepemimpinan berpengaruh terhadap kinerja karyawan baik secara langsung ataupun dimediasi oleh perilaku kerja inovatif, sedangkan budaya organisasi hanya berpengaruh terhadap kinerja karyawan apabila dimediasi oleh perilaku kerja inovatif.
Pengaruh corporate governance terhadap performa keuangan bank yang tercatat di Bursa Efek Indonesia
Authors: Fanny Fanny , Widoatmodjo Sawidji
Published: June 2024

This study aims to analyze the influence of audit committee size, board gender diversity, managerial ownership, foreign ownership with firm size, and firm age as variable control to bank performance measured by ROA and ROE. The research samples are 27 listed companies in the Indonesia Stock Exchange from 2018-2022 consisting of 127 observants determined by purposive sampling method. Hypothesis testing was conducted with linear regression using SPSS 25. The results of this research show that firm size has a positive significant effect on bank performance measured by ROA and ROE. Board gender diversity shows a positive effect on bank performance measured by ROA. Managerial ownership and foreign ownership show negative significant effects on bank performance by ROE. Firm age and audit committee size show no significant effects on bank performance measured by ROA and ROE.
Penelitian ini bertujuan untuk menganalisis pengaruh ukuran komite audit, diversitas gender direksi, kepemilikan manajerial, dan kepemilikan asing, dengan ukuran perusahaan dan usia perusahaan sebagai variabel kontrol performa bank yang diukur dengan ROA dan ROE. Sampel penelitian merupakan 27 bank yang terdaftar di BEI tahun 2018-2022 dengan observasi berjumlah 127 menggunakan metode purposive sampling. Metode yang digunakan untuk menganalisis data adalah analisis regresi berganda dan diolah dengan SPSS 25. Hasil dari penelitian ini adalah ukuran bank yang berpengaruh positif signifikan terhadap kinerja bank yang diukur dengan ROA maupun ROE. Diversitas gender direksi berpengaruh positif signifikan pada performa bank diukur dengan ROA. Kepemilikan manajerial dan kepemilikan asing berpengaruh negatif signifikan terhadap kinerja bank dengan ROE. Usia bank dan jumlah komite audit tidak berdampak signifikan pada performa bank yang diukur dengan ROA dan ROE.
Pengaruh debt to equity ratio, net receivable asset ratio, operational cost to output, dan non-performing financing terhadap return on asset perusahaan pembiayaan yang terdaftar di BEI
Authors: Andreas Andreas , Firdausy Carunia Mulya
Published: June 2024

The purpose of this study is to examine the effects of debt to equity ratio, net receivable asset ratio, operational cost to output, and non-performing financing on the return on assets of financing institutions listed in the Indonesia Stock Exchange (IDX) between 2013 and 2022. The data used was obtained from the financial industries listed in the IDX. The method to analyze the data was by applying multiple linear regression analysis as suggested in the literature. The results showed that the debt to equity ratio, net receivable asset ratio, operational costs on operating income, and non-performing financing influenced significantly return on asset both partially and jointly. Therefore, it is suggested the companies’ management of the finance industry need to take into consideration all the variables to improve the ROA level.
Tujuan dari penelitian ini adalah untuk menguji pengaruh debt to equity ratio, net receivable asset ratio, biaya operasional terhadap output, dan non-performing financing terhadap return on asset lembaga pembiayaan yang terdaftar di Bursa Efek Indonesia (BEI) pada tahun 2013 hingga tahun 2022. Data yang digunakan diperoleh dari industri keuangan yang terdaftar di BEI. Metode analisis data adalah dengan menggunakan analisis regresi linier berganda seperti yang disarankan dalam literatur. Hasil penelitian menunjukkan bahwa rasio utang terhadap ekuitas, rasio aset piutang bersih, dan biaya operasional terhadap pendapatan operasional, serta pembiayaan bermasalah berpengaruh signifikan terhadap return on asset baik secara parsial maupun bersama-sama. Oleh karena itu, disarankan agar manajemen perusahaan industri keuangan yang diteliti perlu mempertimbangkan seluruh variabel untuk meningkatkan ROA.
Lehtitietueiden matkassa – digitoitujen lehtien metatietojen uudistaminen ja jakaminen Alma-yhteisölle
Authors: Salmela Anna-Mari , Aaltonen Jouni , Kannisto Sara , Malin Antti
Published: June 2024

Turun yliopiston kirjastossa on käynnissä projekti Kotimaiset digitoidut lehdet Community Zonelle. Tavoitteenamme on kohentaa Kansalliskirjaston digitoimien, kaikille avoimesti saatavilla olevien lehtien metatietoja. Metatiedot saatamme kirjastojen käytettäväksi paitsi kansallisesti, myös kansainvälisesti Alma-kirjastojärjestelmän metatietovarannon kautta. Vaikka olemme päävastuussa projektista, matkan varrella on ollut mukana lukuisia muitakin tekijöitä.
Tendencias de diversidad de hormigas y carábidos en cuatro altitudes del Parque Natural Farallones, Colombia
Authors: Narvaez-Vidal Erik Daniel , Urcuqui Diana Marcela , Arenas Anderson , Armbrecht Inge
Published: June 2024

Las variadas condiciones ambientales a lo largo de los hábitats a diferentes altitudes de los Andes tropicales permiten el asentamiento y la estratificación de una gran diversidad de flora y fauna, incluyendo los insectos. Con el objetivo de evaluar el cambio en la diversidad de hormigas y escarabajos carábidos en función de un gradiente altitudinal en el Parque Nacional Natural Farallones de Cali (suroeste de Colombia), se estudió la fauna de estos organismos en hábitats de bosque subandino (1600 m s.n.m.), bosque andino (2400 m s.n.m.), bosque altoandino (3200 m s.n.m.) y páramo (3800 m s.n.m.). En cada altura, los ejemplares se recolectaron con trampas de caída, captura manual, agitación de follaje, cernido de hojarasca con extracción con sacos mini-Winkler y trampas de luz, de una manera estandarizada, durante una expedición única de cinco días por localidad. La diversidad se evaluó mediante curvas de acumulación e índices de diversidad con números de la serie de Hill y su comparación entre localidades se hizo a través de partición aditiva y NMDS. Los resultados sugieren una disminución de la diversidad de hormigas con el aumento de altitud, y la acumulación de diversidad de carábidos en altitudes intermedias del gradiente. La diversidad de los dos grupos es consistente con la ley altitudinal de Rapaport. Cada altitud presentó una composición de especies única, exceptuando de los bosques altoandino y subandino para los carábidos. Este estudio aporta al conocimiento sobre la diversidad de insectos en bosques y páramo del PNN Farallones de Cali, que hasta el momento es casi desconocida y además servirá como base para futuros estudios.
Penyuluhan dan Pelatihan Mengenai Kesehatan Gigi dan Mulut Kepada Siswa/i SDN Tanjung Duren Selatan 01 Pagi
Authors: Talenta Theresia Tiarma , Roro Asyurati Asia Raden , Lestari Sri , Erri Astoeti Tri
Published: June 2024

Oral health needs to be considered from an early age. The behavior of maintaining dental and oral health is supported by knowledge. Dental and oral health education is one of the efforts made to increase elementary school age children's knowledge and behavior about dental and oral health. The aim of this program is to determine the knowledge of students in grades 4 and 6 at SDN Tanjung Duren Selatan 01 Pagi after dental and oral health education. This study used a descriptive observational method with a cross sectional design. The sampling technique is purposive sampling. The sample for describing knowledge was 139 students in grades 4 and 6 of SDN Tanjung Duren Selatan 01 Pagi. The knowledge of grade 4 and 6 students at SDN Tanjung Duren Selatan 01 Morning before dental and oral health education was in the poor category. After the education was carried out, the understanding and knowledge of grade 4 and 6 students at SDN Tanjung Duren Selatan 01 Pagi increased. Student knowledge regarding the frequency of brushing their teeth, the use of toothpaste containing fluoride and the consumption of cariogenic foods has increased after the dental and oral health education.
Pendidikan dan Latihan Kesehatan Gigi dan Mulut serta Kaitannya dengan Penyakit Sistemik pada Lansia di Panti Werdha Wisma Mulia
Authors: Christin Maitimu Fergy , Aryani Hayuningtias Ria , Ihsan Rizal Muhammad , Anggara Putranto Ricky , Astuti Luki
Published: June 2024

The increasing number of elderly individuals in Indonesia, accompanied by rising health issues, particularly concerning oral health and its association with systemic conditions, is a notable concern. Community service activities in the form of education and training on oral health and its connection to systemic diseases among the elderly at Panti Werdha Wisma Mulia are expected to enhance awareness of the relationship between oral health and systemic conditions among the elderly and foster habits of maintaining oral health. There were 29 participants who were residents of Panti Werdha Wisma Mulia involved. Based on the pre-test and post-test results, there was an observable increase in knowledge among the participants regarding oral health, systemic diseases, and their interrelation. Furthermore, it is hoped that healthy lifestyle patterns, especially those related to oral health, will be established as they are closely linked to the systemic conditions of the participants.
Pelatihan Cara Deteksi Dini Gigi Berlubang, Gigi Berjejal, dan Kelainan dalam Mulut pada Komunitas Orang Tua dan Guru Playgoup dan TK Al-Alaq di Jatibening
Authors: Gadih Pratomo Harris , Prijanti Dwisaptarini Ade , Subrata Aryadi , Nova Fitri Andrian
Published: June 2024

The first 5 years of a child's development stage is a golden period in a child's growth and development period. Children's dental and oral health is very important, because the mouth is the first gate in the human digestive system. Parents' knowledge regarding dental and oral hygiene and health is the basis for forming children's behavior in maintaining children's oral and dental hygiene. Parents need to be provided with adequate knowledge on how to do an early detection of cavities, crowding of teeth, and abnormalities in the mouth as a form of prevention against tooth decay in children in the home environment. Community Service (PkM) was carried out online via Zoom Meeting on Friday 1 July 2022, and was attended by 37 people including teachers, staff and parents of students from Playgoup School and Kindergarten Al-Alaq Jatibening. The material provided is in the form of early detection of tooth decay, how to check oral health at home, how to detect crowding of teeth early, soft tissue disorders in the form of ppt, e-flyer and video. Measure success by completing a pre-test and post-test consisting of 17 knowledge questions related to the topic presented. It was found that participants' knowledge increased by 31%. The results obtained from this activity are very good with partners who are willing to carry out PkM activities on an ongoing basis.
Penyuluhan Dan Pelatihan Masyarakat Ibu Dan Anak RT 004, Kel Pulogadung, Kec Pulogadung, Jakarta Timur Mengenai Kesehatan Gigi Dan Mulut Serta Penggunaan Obat Kumur
Authors: Halim Himawan , Natassya Priska , Ariesanti Yessi , Farizka Intan , Vina Priscilla
Published: June 2024

The COVID-19 pandemic is a valuable lesson and experience for the world community in facing challenges to maintain health and daily life. The psychological and emotional impact of the COVID-19 pandemic on family behavior and society in general. Dental and oral health education for children other than mothers is one of the health efforts that can be carried out to increase the knowledge, willingness and skills of children and mothers as a large family in maintaining dental and oral health and hygiene. Explanations need to be given to children and mothers about why and how to maintain healthy teeth and mouth properly. Dental and oral health education delivered in the form of stories through audiovisual media and simulations will be able to create a pleasant learning atmosphere so that it is more effective in attracting attention and facilitating the process of absorbing information by parents, especially children.
Zebra Bodies in the Kidney: Is it a Pathognomonic Finding of Fabry Disease?
Authors: Patel Prem S. , Singh Prit P. , Krishna Amresh , Kumar Om , Archana
Published: June 2024

Zebra bodies are intralysosomal lamellar inclusion bodies. It is accepted as a specific feature of Fabry disease. However, it has been reported in many hereditary and acquired conditions. We are reporting Zebra bodies in the kidneys of cases with Rheumatoid Arthritis and hydroxychloroquine-induced phospholipidosis. Case 1: A 55-year-old male presented with hypertension and renal dysfunction. Serum ANA and anti-CCP antibodies were positive. A kidney biopsy revealed chronic tubulointerstitial nephritis with Zebra Bodies in the podocytes. Genetic analysis was negative for Fabry disease. Case 2: A 34-year-old female with Systemic Lupus Erythematosus on Hydroxychloroquine for a year presented with subnephrotic proteinuria. Serum ANA and anti-dsDNA antibodies were positive. Electron microscopy showed lamellated osmiophilic inclusion bodies in the tubular and visceral epithelial cells. Thus, Zebra bodies are not pathognomonic for Fabry disease and Rheumatoid Arthritis should also be considered in the differential diagnosis, particularly if family or drug history is negative.
Chemical Recycling of Phosphoric Acid Recovered from Sewage Waste via Direct Esterification with Organosilicate
Authors: Naganawa Yuki , Sakamoto Kei , Fujita Akira , Morimoto Kazuya , Ratanasak Manussada , Hasegawa Jun-ya , Yoshida Masaru , Sato Kazuhiko , Nakajima Yumiko
Published: June 2024

Global concerns regarding the depletion and strategic importance of phosphorus resources have increased demand for the recovery and recycling. However, waste-derived phosphorus compounds, primarily as chemically inert phosphoric acid or its salts, present a challenge to their direct conversion into high-value chemicals. We aimed to develop an innovative technology that bypasses the use of white phosphorus and enables direct esterification of phosphoric acid to produce widely applicable phosphate triesters. Tetraalkyl orthosilicates emerged as highly effective reagents for the direct triple esterification of 85% phosphoric acid, as well as the esterification of organophosphinic and phosphonic acids. Furthermore, we achieved direct esterification of recovered phosphoric acid with tetraalkyl orthosilicate, thus pioneering a recycling pathway from sewage waste to valuable phosphorus chemicals. Experimental and theoretical investigations revealed a novel mechanism, wherein tetraalkyl orthosilicates facilitate multimolecular aggregation to achieve alkyl transfer from tetraalkylorthosilicate to phosphoric acid via multiple proton shuttling.
Overcoming the Pitfalls of Computing Reaction Selectivity from Ensembles of Transition States
Authors: Laplaza Ruben , Wodrich Matthew D. , Corminboeuf Clemence
Published: June 2024

The prediction of reaction selectivity is a challenging task for computational chemistry, not only because many molecules adopt multiple conformations, but also due to the exponential relationship between effective activation energies and rate constants. To account for molecular flexibility, an increasing number of methods exist that generate conformational ensembles of transition state (TS) structures. Typically, these TS ensembles are Boltzmann weighted and used to compute selectivity assuming Curtin-Hammett conditions. This strategy, however, can lead to erroneous predictions if appropriate filtering of the conformer ensembles is not conducted. Here, we demonstrate how any possible selectivity can be obtained by processing the same sets of TS ensembles for a model reaction. To address the burdensome filtering task in a consistent and automated way, we introduce marc, a tool for the modular analysis of representative conformers that aids in avoiding human errors while minimizing the number of reoptimization computations needed to obtain correct reaction selectivity.
Ligand-Induced Folding in a Dopamine-Binding DNA Aptamer
Authors: Kaiyum Yunus , Chao Emily, Hoi Pui , Nguyen Minh-Dat , Mackereth Cameron , Dauphin-Ducharme Philippe , Johnson Philip
Published: June 2024

Aptamers are often employed as a molecular recognition element in the development of different types of biosensors. Many of these biosensors take advantage of the aptamer having a ligand induced structure-formation binding mechanism. However, this binding mechanism is poorly understood. Here we use isothermal titration calorimetry and NMR spectroscopy to study the binding and ligand-induced structural change exhibited by the dopamine-binding DNA aptamer. We analysed a series of aptamers where we shorten the terminal stem that contains the 5’ and 3’ termini of the aptamer sequence. All aptamers bind dopamine in an enthalpically driven process compensated by an unfavorable entropy. A general trend of the aptamer having a weaker binding affinity is observed as the terminal stem is shortened. For all aptamers studied, numerous signals appear in the imino region of the 1H NMR spectrum indicating that new structure forms with ligand binding. However, it is only when this region of structure formation in the aptamer is brought close to the sensor surface that we obtain a functional electrochemical aptamer-based biosensor.
HF trimer: A new full-dimensional potential energy surface and rigorous 12D quantum calculations of vibrational states
Authors: Li Jia , Vindel Zandbergen Patricia , Li Jun , Felker Peter , Bacic Zlatko
Published: June 2024

HF trimer, as the lightest cyclic hydrogen-bonded (HB) trimer, has long been a favorite prototype system for spectroscopic and theoretical investigations of the structure, energetics, and dynamics of hydrogen-bond networks, and the role that nonadditive, three-body interactions play in shaping these properties. Recently, rigorous quantum 12D calculations of the coupled intra- and intermolecular vibrations of this fundamental HB trimer [P.M. Felker and Z. Bačić, J. Chem. Phys. 2023, 158, 234109] were performed, employing an older ab initio-based many-body potential energy surface (PES). While the theoretical results were found to be in reasonably good agreement with the available spectroscopic data, it was also evident that it is highly desirable to develop a more accurate 12D PES of HF trimer. Motivated by this, here we report a new 12D PES of this paradigmatic system. Approximately 42,540 geometries were sampled and calculated at the level of CCSD(T)-F12a/AVTZ. The permutationally invariant polynomial-neural network based Δ-machine learning approach [Y. Liu and J. Li, J. Phys. Chem. Lett. 2022, 13, 4729] was employed to perform cost-efficient calculations of the basis-set-superposition error (BSSE) correction. By strategically selecting data points, this approach facilitated the construction of a high-precision PES with BSSE correction, while requiring only a minimal number of BSSE value computations. The fitting error of the final PES is only 0.035 kcal/mol. To assess its performance, the 12D fully coupled quantum calculations of excited intra- and intermolecular vibrational states of HF trimer are carried out using the rigorous methodology developed by us earlier. The results are found to be in a significantly better agreement with the available spectroscopic data than those obtained with the previously existing 12D PES.
Decoupling interlayer spacing and cation dipole on exciton binding energy in layered halide perovskites
Authors: Kim YeonJu , Nussbaum Simon , Chen Danxuan , Grandjean Nicolas , Scopelliti Rosario , Cho Han-Hee , Yum Jun-Ho , Sivula Kevin
Published: June 2024

Layered halide perovskites (LHPs) are emerging semiconductor materials due to their superior environmental stability compared to traditional halide perovskites. While LHPs have tunable optoelectronic properties, quantum and dielectric confinement effects due to organic spacer layers limit their application. Recent attempts to mitigate the high exciton binding energy (Eb) of LHPs by organic cation engineering have been demonstrated, however systematic studies to decouple the influence of interlayer spacing and molecular dipole are very limited. Here, we designed a new class of organic spacer employing a malononitrile (MN) functionality giving a calculated dipole moment of 7.9 D. Malononitrile phenethyl ammonium (MNPEA) was successfully incorporated into lead iodide-based LHPs thin films and as single crystals. Comparing the MNPEA-based LHP to phenethyl ammonium (PEA) and biphenethyl ammonium (BPEA), selected as reference cations to elucidate the influence of increased dipole moment while excluding the contribution of increased interlayer distance, clarified the effect of the large organic dipole. Binding energies, Eb, estimated by temperature-dependent photoluminescence spectroscopy for MNPEA2PbI4, PEA2PbI4 and BPEA2PbI4 were 122, 354 and 183 meV, respectively. Moreover, the similar interlayer spacing of BPEA2PbI4 and MNPEA2PbI4 (21.04 Å and 21.36 Å, respectively) confirms the importance of dipole on tuning the optoelectronic properties. Photovoltaic devices with n = 1 LHPs demonstrated a higher fill factor and open circuit voltage with MNPEA2PbI4 compared to the reference layered perovskites likely due to the favored charge dissociation and transport afforded by the malononitrile-based cation.
Formulation and evaluation of bioadhesive suppository dosage form
Authors: Shabana Parveen , G Vigneswari , Olee Mohamed , P Akhila , Rofikul Islam , Sk Chandbee
Published: June 2024

The current study aims to formulate and evaluate a dosage form for bio-adhesive suppositories. Using CB and HPKS (CE and SS) as suppository bases, optimized manufacturing techniques successfully made suppositories containing bio-adhesive polymers (CBP, PVP, HPMC, and CMCTS). Analyzing dosage forms is crucial to determining the quality of a product. The suppositories produced in this investigation had good weight consistency, with minimal variation (±1%) between the goal and actual weight. All formulations showed melting values between 32.5 and 35.5 degrees Celsius, while the melting points of suppositories made with CE and SS were 1-2 degrees Celsius greater than those of CB suppositories. Incorporating bio-adhesive polymers did not cause a substantial change in the suppositories' melting point (less than ± 1 °C), keeping it around body temperature and appropriate for rectal administration. More than 95% of the required DcNa content was present in every formulation tested. All formulations, however, had softening durations of three to seven minutes, which was suitable for rectal medication delivery. The physical characteristics of the suppositories this chapter looked at were determined to be appropriate for administration by the rectal route. Compared to CB suppositories, HPKS suppositories have an additional benefit due to their longer softening time and melting point of 34.5 ± 1 °C.