bluuebunny/crossref_metadata_2025 huggingface dataset:
Predictors of Shisha Use among Medical and Dental Students in Ibadan, Nigeria
Authors: Fagbule OF , Cadmus EO
Published: September 2022

Background:

Shisha is a form of smoked tobacco product. Medical trainees are potential stakeholders in providing accurate information about shisha and discouraging its use. However, few studies have targeted medical trainees to provide much-needed information for policymaking and planning of programs.

Aim:

To determine the prevalence and predictors of shisha use among medical and dental students in Ibadan, Nigeria.

Subjects and Methods:

A cross-sectional study was conducted among medical and dental students (n = 252) of the University of Ibadan, selected using the stratified random sampling technique. The Global Health Profession Students Survey (GHPSS) questionnaire was used to obtain information about socio-demographics, shisha and other tobacco use, and knowledge and attitude towards shisha use. The data were analyzed using Statistical Package for the Social Sciences (SPSS) version 25. Continuous data were presented using mean and standard deviation, whereas categorical variables were reported as proportions. The association between the outcome variable (shisha use) and independent variables (sociodemographic characteristics, having friends who use shisha) was measured using Pearson's Chi-square test, and factors significant (P < 0.05) were entered into the multivariable logistic regression model.

Result:

The mean age (± SD) was 21.7 (± 3.1) years. Over half [136 (54%)] were males, and most [199 (79%)] were medical students. About 28 (11%) were not aware of shisha, whereas 22 (8.7%) reported they had ever used shisha. The mean knowledge score was 5.6 ± 4.7, and 76 (33.9%) supported shisha use. Positive predictors of shisha use included the male gender [OR: 6.4 (95% CI: 1.76–23.10)] and having a friend who uses shisha [OR: 28.2 (95% CI: 5.49–144.23)].

Conclusion:

The prevalence of shisha use among medical and dental students in Ibadan is unacceptably high, although low compared to other countries in similar resource settings. Surprisingly, the students had poor knowledge about shisha, and over a third supported its use, especially males who were more prone to use it. There is a need to design targeted health promotion and education for the students, especially males.
An Accurate Viewport Estimation Method for 360 Video Streaming using Deep Learning
Authors: Nguyen Hung , Dao Thu Ngan , Pham Ngoc Son , Dang Tran Long , Nguyen Trung Dung , Truong Thu Huong
Published: September 2022

Nowadays, Virtual Reality is becoming more and more popular, and 360 video is a very important part of the system. 360 video transmission over the Internet faces many difficulties due to its large size. Therefore, to reduce the network bandwidth requirement of 360-degree video, Viewport Adaptive Streaming (VAS) was proposed. An important issue in VAS is how to estimate future user viewing direction. In this paper, we propose an algorithm called GLVP (GRU-LSTM-based-Viewport-Prediction) to estimate the typical view for the VAS system. The results show that our method can improve viewport estimation from 9.5% to near 20%compared with other methods.
Distributed Joint Channel Assignment and Power Control for Sum Rate Maximization of D2D-Enabled Massive MIMO System
Authors: Dejen Abi Abate , Anna Förster  , Yihenew Wondie
Published: September 2022

Device-to-device (D2D) communications underlaid massive multiple-input multiple-output (MIMO) systems have been recognized as a promising candidate technology to achieve the challenging fifth-generation (5G) network requirements. This integration enhances network throughput, improves spectral efficiency, and offloads the traffic load of base stations. However, the co/cross-tier interferences between cellular and D2D communications caused by resource sharing is a significant challenge, especially when dense D2D users exist in an underlay mode. In this paper, we jointly optimize the channel assignment and power allocation to maximize the sum data rate while maintaining the interference constraints of cellular links. Due to the lack of network-wide information in large scale networks, resource management and interference coordination is hard to be implemented in a centralized way. Therefore, we propose a three-stage stable and distributed resource allocation and interference management scheme based on local information and requires little coordination and communication between devices. We model the channel allocation optimization problem in the first stage as a many-to-one matching game. In the second stage, the algorithm adopts a cost charging policy to solve each user’s power control problem as a non-cooperative game. In the third stage, the algorithm search for swap blocking pairs until stable matching exist. It is shown in this paper that the proposed algorithm converges to a stable matching and terminates after finite iterations. Simulation results show that the proposed algorithm can achieve more than 86% of the average transmission rate performance of the optimal matching with lower complexity.
Collaborative Relay Radio Network Using Reconfigurable Intelligent Surface
Authors: Tran Huu Q. , Duy Nguyen Trong , Nghia Huynh Phan Hieu
Published: September 2022

In this paper, we have studied a model of a relay radio network system using Reconfigurable Intelligent Surface (RIS). Specifically, we used a relay network that uses RIS when there is an extra direct link from the Source (S) to the Destination (D). Next, an approximate closed-form expressions of the Outage Probability (OP) and Ergodic Capacity (EC) are considered. Based on the simulation results of OP and EC, the results show that our proposed system is more optimal than the system using supported RIS without direct link and the system without using RIS. In addition, changing the number of the RIS reflecting elements and the RIS’s location near (S) or (D) has a significant impact on the performance of the system. The analytical expression match the simulation results through the Monte Carlo simulation method. Furthermore, the simulation results of energy efficiency (EE) also show that when the target spectral efficiency (SE), Rth, is high (more than 5.45 b/s/Hz), the system using supported RIS with direct link will help reduce the transmit power and optimize the most energy compared to the other two systems.
Artificial Intelligence is changing Health and eHealth care
Authors: Akshaya AVR  , S. Vigneshwaran , Kumar C Ram
Published: September 2022

Artificial Intelligence (AI) will be used more and more in the healthcare industry as a result of the complexity and growth of data in the sector. Payers, care providers, and life sciences organisations currently use a variety of AI technologies. The main application categories include recommendations for diagnosis and treatment, patient engagement and adherence, and administrative tasks. Although there are many situations in which AI can execute healthcare duties just as well as or better than humans, implementation issues will keep the jobs of healthcare professionals from becoming extensively automated for a substantial amount of time. The use of AI in healthcare and ethical concerns are also highlighted.
Carleman estimate for complex second order elliptic operators with discontinuous Lipschitz coefficients
Authors: Francini Elisa , Vessella Sergio , Wang Jenn-Nan
Published: September 2022

In this paper, we derive a local Carleman estimate for the complex second order elliptic operator with Lipschitz coefficients having jump discontinuities. Combing the result by M. Bellassoued and J. Le Rousseau (2018) and the arguments by M. Di Cristo, E. Francini, C.-L. Lin, S. Vessella, and J.-N. Wang (2017), we present an elementary method to derive the Carleman estimate under the optimal regularity assumption on the coefficients.
Zero measure spectrum for multi-frequency Schrödinger operators
Authors: Chaika Jon , Damanik David , Fillman Jake , Gohlke Philipp
Published: September 2022

Building on works of Berthé–Steiner–Thuswaldner and Fogg–Nous, we show that on the two-dimensional torus, Lebesgue almost every translation admits a natural coding such that the associated subshift satisfies the Boshernitzan criterion. As a consequence, we show that for these torus translations, every quasi-periodic potential can be approximated uniformly by one for which the associated Schrödinger operator has Cantor spectrum of zero Lebesgue measure. We also describe a framework that can allow this to be extended to higher-dimensional tori.
Using Video Games for Design Education: An Example of Developing Earthquake Scenarios for Home Environments
Authors:   Department of Interior Architecture, Faculty of Architecture, Istanbul Technical University, Istanbul, Turkey, Oksuz Merve , Cordan Ozge ,   Department of Interior Architecture, Faculty of Architecture, Istanbul Technical University, Istanbul, Turkey
Published: September 2022

The heart of interior design/architecture education is design studios. As a design-based graduate program, the main objective of the International Masters of Interior Architecture and Design Program-(IMIAD) in Istanbul Technical University Graduate School is to produce new disciplinary information and knowledge for design (Cordan, 2017). Additionally, the main objective of the Interior Architecture Project III, which is the third design studio blended with the thesis studies in the IMIAD Programme, is to guide students in their study based on research-based design approach. In this study, one example was presented to explain how the research-based design process conducted. This study was based on developing a game scenario for experiencing earthquakes in an experiential box. The earthquake scenario was developed for a bedroom situation at home environment by using virtual reality and gamification methods. The educational use of video games through serious games helps designers and design students understand real situations and raise public awareness by experiencing them in virtual environments. Besides, the study will fill the gap in the literature by using video games as an educational tool in design to develop scenarios for natural disasters such as earthquakes, the study will help educators for developing new ways of teaching and students for solving design issues using video games. Different scenarios can be developed for different natural disasters and cases in the future for further studies.
Desgaste ocupacional y conciliación trabajo-familia tras el retorno a la presencialidad laboral después de la pandemia por Covid-19 en colaboradores de servicios financieros y de educación superior
Authors: Guamán Guevara María Dolores , Guillén Rubio Daniela Nataly , León Santiana Verónica Patricia
Published: September 2022

El retornar al trabajo presencial después de más de un año de laborar virtualmente debido al confinamiento por el virus Covid-19 podría plantear algunos desafíos para la salud mental de los colaboradores ya que para muchos este cambio implicaría altos niveles de desgaste ocupacional por el proceso de adaptación implícito que incluye preocupaciones como reducción de ingresos, el riesgo de contagio, nuevas reglas de trabajo, entre otras. Es necesario tener en cuenta que algunas personas ya se habían adaptado a un espacio familiar para teletrabajar y ahora les resulta difícil cambiarlo. El objetivo de la presente investigación fue determinar la relación entre el síndrome de burnout y la conciliación entre trabajo y familia en los colaboradores de empresas de servicios. La metodología aplicada fue de tipo cuantitativo, correlacional explicativo y transversal, para lo cual se encuestó a una muestra de 355 participantes, la encuesta constó de tres dimensiones para burnout y cuatro dimensiones para conciliación entre trabajo-familia con Alpha de Cronbach de 0.960 y 0.815 respectivamente, para los análisis se utilizaron el modelo de Leiter y Maslach, estadísticos de medida de tendencia central y correlaciones de Spearman, las cuales permitieron aceptar la hipótesis planteada, dado que se confirmó que existe relación entre estas variables y con esto concluir que el retorno a la presencialidad laboral después del confinamiento influyó en los niveles de desgaste ocupacional y conciliación trabajo-familia de los participantes en este estudio.
Micropropagation of Agave (Agave potatorum Zucc.) through Direct Organo-genesis
Authors: Ramírez-Mosqueda Marco A. , Cárcamo-Corona Rocío G. , Aguilar-Jiménez Daniel , Bello-Bello Jericó J.
Published: September 2022

Populations of Agave potatorum Zucc. have been overexploited from their habitat for the commercial production of mezcal, a traditional Mexican liquor. For this species, micropropagation is the only method for cloning selected genotypes. The aim of this study was to establish an efficient protocol for the in-vitro propagation of A. potatorum by use of individual shoots. In the propagation stage, the interaction between different concentrations of the cytokinin benzylaminopurine (BAP: 0, 1.5, and 3.0 mg L–1)and the auxin indole acetic acid (IAA: 0, 1.5, and 3.0 mg L–1) was evaluated. For in-vitro rooting, the interaction between different auxin concentrations, namely naphthaleneacetic acid (NAA: 0, 1.5 and 3.0 mg L–1) and IAA (0, 1.5 and 3.0 mg L–1) was evaluated. In the propagation stage, the highest number of shoots was obtained with the combinations of 3.0 mg L–1 BAP + 3.0 mg L–1 IAA, 1.5 mg L–1 BAP + 3.0 mg L–1 IAA, and 3.0 mg L–1 BAP + 1.5 mg L–1 IAA, which yielded 9.87, 9.73, and 9.73 shoots per explant, respectively.  In the rooting stage, the best shoot development was observed in the control treatment and when only 3.0 mg L–1 IAA was supplemented. Finally, after the rooting stage, the plantlets obtained were acclimatized and grown in the field, yielding a survival rate of 98-100%. In conclusion, this propagation protocol contributes to obtaining commercial propagules suitable for establishment in the field.
Proposed Improvement Plan for Quality Management in Crafting Industry (Case Study of PT Global Kriya Nusantara)
Authors:   School of Business and Management, Institut Teknologi Bandung, Indonesia, Kusnadi Reihan Ghifari
Published: September 2022

Crafting industry is one of the creative economy subsectors under the Ministry of Tourism and Creative Economy of the Republic of Indonesia. PT Global Kriya Nusantara or later will be mentioned as Kriya Nusantara is one of the craft industry actors in West Java, specifically in Bandung City. Established in 1995, Kriya Nusantara exported craft goods to several countries. In order to fulfil its demand, Kriya Nusantara needs a great strategy, especially for its quality management. In this case, the proposed system to be improved is the quality management of Kriya Nusantara due to the occurrence of rejected products in one of its project production processes. One of the projects that will be analysed in this research is Ramadhan Box 2022 which was ordered by Al-Jazeera Perfumes – Qatar. The problem is, that there are some defective finished goods that later will be rejected and needs to be repaired or reworked. The Six Sigma method has been utilised in this research as a primary tool. The Six Sigma in this research contains the DMAIC framework that will be useful to define the main issue, measure the capability of the process, analyse the business situation, and propose the improvement plans along with the control plans for the production process of Kriya Nusantara. According to this research, there are six defect types that occurred in this production process, and the defect type that has the greatest RPN value is the Minor Paint Defect with a 320 RPN value and has critical risk level. The causes of each defect type have been analysed using FMEA analysis and there are four causes which are human error, miscommunications, unskilled labour, and defective raw materials. The FMEA analysis also has been utilised to propose the business solution alternatives in this research. There are three proposed business solutions for the causes which are progress monitoring for the human error and miscommunication issues, labour training for the unskilled labour, and supplier’s product evaluation for the defective raw materials. Those improvements will reduce the defect of the products so that the quality of the products of Kriya Nusantara will be enhanced.
Dilated Cardiomyopathy Due to Methamphetamine Use in a Pregnant Patient: Case Report
Authors:   nternal Medicine Department, Mexicali's General Hospital (Hospital General de Mexicali). Autonomous University of Baja California, Faculty of Medicine. Mexicali, Mexico., Bosque MD I Carlos Pablo Guerrero-Del
Published: September 2022

Background: Dilated Cardiomyopathy (DCM) is characterized by dilation of the left ventricle (LV) and, by consequence contractile dysfunction. DCM is caused by multiple etiologies, often the result of myocarditis, alcohol consumption, drugs and metabolic or endocrine alterations. Case: We report the case of a 36-year-old patient with a 27.6-week pregnancy with a pathological history of Heart Failure (HF) of 4 years, alcoholism of more than 15 years, methamphetamine use of more than 3 years. She presented agitation and class III dyspnea, the fatigue progressed until she presented respiratory distress accompanied by edema of the lower limbs, an echocardiogram was performed, Dilated Cardiomyopathy was diagnosed and therefore primary management was made with levosimendan and diuretic then cesarean surgery was performed. Conclusion: for this patient the use of levosimendan was beneficial, improving the symptomatology, increasing the cardiac function and making possible the performance of the cesarean delivery. There was no harm for the patient or the baby.
Size Effect Anomalies and Firms Financial Distress; Evidence from Nairobi Securities Exchange, Kenya
Authors:   Department of Economics, Accounting and Finance, School of Business & Entrepreneur Jomo Kenyatta University of Agriculture and Technology, Kenya.
Published: September 2022

The universal objective of this study is to establish the relationship between size effect anomalies and financial distress of listed firms in Nairobi Securities Exchange (NSE), Kenya. Due to the size effect anomalies, firms experience financial distress. The study adopts descriptive research design and positivist research. It considered all listed firms in NSE which had been licensed by Capital Market Authority (CMA) as at 1st January 2017, totaling to 67 which constitutes the target population. The study considers secondary data which were extracted from the audited financial statements from individual firms from 2007 to 2017. This study will apply panel data model and in data analysis and presentation, the statistical software to be used is EView while the p-value will be applicable in hypothesis testing. The Z-Score, a multivariate approach was applied as the financial prediction model. The results were presented using tables. Size effect anomalies was established to have weak negative correlations with the financial distress. The size effect anomaly was statistically significant at five percent level of significance meaning that the null hypothesis failed to be accepted. The study’s recommendations will assist the management, investors, researchers, policy makers and regulators.
Shaxs qadriyati turlari va ularning klassifikatsiyasi
Authors: Mirxusanova Nilufar
Published: September 2022

Ushbu maqolada shaxs qadriyati, ularning turlari hamda olimlar tomonidan taklif qilingan klassifikatsiyalari ko‘rib chiqilgan va umumlashtirilgan. Bunda shaxs qadriyatlarini o‘rgangan psixolog olimlarning qilgan ishlari turli mezonlar asosida sinflarga ajratilgan. Bu turkumlashtirish asosan sobiq sho‘rolarmaktabining namoyondalari: K. Xabibulin, T.V. Butkovskiy, V.P. Tugarinov va b.q. hamda G‘arb psixologik olimlari: M. Rokich, A. Maslou, A. Adler, V. Franklning ishlari asosida tashkillashtirildi. Qadriyatlar turkumi asosida ular qiyosiy o‘rganildi. Ularning o‘xshash va farqli jihatlari ajratib berildi. Shu bilan birga, ushbu maqolada qadriyatlarni sinflashtirish natijasida shaxslarning tiplarga bo‘linish tamoyili ham ko‘rib chiqildi. Bunda eng mashhur ishlardan biri bo‘lgan Eduard Shprangerning qadriyatlar asosida klassifikatsiya-lashtirilgan shaxs tiplari nazariyasiga murojaat qilindi. Ushbu nazariya asosida shaxs tiplariga izohlar berildi.
“Жиноят содир этган ёшлар” тушунчасига оид айрим мулоҳазалар
Authors: Мамажонов Шерзод
Published: September 2022

Мақолада Ўзбекистон Республикаси ва айрим хорижий давлатлар қонунчилиги, халқаро ҳуқуқ нормалари, ҳуқуқшунос олимларнинг назарий фикрлари таҳлил қилинган бўлиб, жиноят, маъмурий, жиноят–процессуал, жиноят-ижроия ва ҳуқуқбузарликлар профилактикаси соҳасидаги қонунчиликда “ёшлар” тушунчасини белгилашга, ёшлар, хусусан, ўн саккиз ёшга тўлган, лекин ўттиз ёшдан ошмаган ёшларга уларнинг ўзига хос хусусиятларини инобатга олган ҳолда ёндашишга оид алоҳида қоидалар киритиш, ҳуқуқ назарияси ва амалиётда ҳуқуқбузарлик содир этган ёки содир этиш эҳтимоли бўлган шахсларга нисбатан “ҳуқуқбузар”, “жиноятчи”, “ҳуқуқбузарлик содир этишга мойил шахс”, “ижтимоий жиҳатдан хавфли аҳволда бўлган вояга етмаган”, “хавфли рецидивист”, “ўта хавфли рецидивист” эмас, балки “ҳуқуқбузарлик содир этиш эҳтимоли ҳолатида бўлган шахс”, “ҳуқуқбузарлик содир этган шахс” ёки “жиноят содир этган шахс” жумлаларини қўллаш мақсадга мувофиқлиги, шунингдек, рецидивликни шахсга нисбатан эмас, жиноятга нисбатан қўллаш, шахсни “хавфли рецидивист” ёки “ўта хавфли рецидивист” деб топиш амалиётини бекор қилиш, жиноятни “хавфли рецидив” ва “ўта хавфли рецидив” деб топиш мезонларини қайта кўриб чиқиш юзасидан таклиф ва тавсиялар ишлаб чиқилган.
Effect of Process Conditions on Catalytic Hydrothermal Oxidation of p-Xylene to Terephthalic Acid
Authors: Yeop Mohamad Zarqani , Ismail Kamariah Noor , Mohamad Daud Ahmad Rafizan
Published: September 2022

This study investigates the influence of hydrothermal process conditions on the yield of terephthalic acid (TPA). Deionised water was employed as a green reaction medium substitute for acetic acid solvent widely used in the Amoco oxidation process for TPA production. Utilising the unique properties of water at elevated temperature and pressure, TPA was synthesised from p-xylene under subcritical (250 °C, 300 °C and 350 °C) and supercritical (400 °C) water conditions in a 10 mL micro-bomb batch reactor. Process conditions, including hydrogen peroxide (H2O2) oxidant concentrations, manganese bromide (MnBr2) catalyst and water loadings, were varied at a fixed reaction time of 60 minutes. The p-xylene conversion and TPA yield were determined using high-performance liquid chromatography (HPLC). In addition, the presence of chemical functional groups and chemical compositions of the reaction products were examined using Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectrometer (GC-MS), respectively. It was found that an optimum TPA yield of 94.56% was observed at 350°C with hydrogen peroxide, deionised water and manganese bromide catalyst set at 1.5 mL, 2.5 mL, and 2 mL, respectively. Other major reaction products identified were p-tolualdehyde and 1,4-hydroxymethyl benzaldehyde.
Hole Quality Assessment of Drilled Carbon Fiber Reinforced Polymer (CFRP) Panel Using Various Custom Twist Drill Geometries
Authors: Kamaruzaman Muhammad Faris Shauqi , Hassan Muhammad Hafiz , Razali Muhammad Fauzinizam
Published: September 2022

Excellent hole quality is necessary for the aerospace industry’s highly abrasive carbon fiber reinforced polymer (CFRP) drilling process. This work considered three different twist drill designs, tapered web, burnishing, and subland drill reamer for the drilling process. The drill bits were made of tungsten carbide and machined with custom helix angle, primary clearance, point angle, and chisel angle. The primary objective of this research is to determine the thrust force signature for each custom drill bit design and the delamination factor for the hole drilling at 3000 rev/min and 0.05 mm/rev. The finding indicates that the tapered web gave the best design by improving the maximum thrust force by 14.6% in drilling CFRP panels. Additionally, the tapered web design led to a low delamination factor on both entrance (1.0186) and exit sides (1.0475). The thrust force is directly proportional to the delamination factor when drilling a CFRP material in a single shot operation. The subland drill reamer produces higher thrust force, and delamination proved that the combination of drill and reamer design was unsuitable for high-speed drilling.
RNA Isolation from Environmental Samples of a Harmful Algal Bloom for Metatranscriptome Next-Generation Sequencing
Authors: Lorons Diana , Rodrigues Kenneth Francis , Sidik Madihah Jafar , Wei Lie Chin Grace Joy
Published: September 2022

During a harmful algal bloom (HAB), the seawater contains a high abundance of microorganisms and elemental ions. Such components can interfere with RNA isolation, leading to RNA degradation. The complex HAB seawater property makes isolating high-quality RNA for metatranscriptomic sequencing difficult, which is required for effective RNA sequencing and transcriptome profiling. This study used three isolation techniques to find the optimal strategy for isolating total RNA from bloom samples. One of the isolation techniques was the phenol-chloroform extraction method, which uses organic solvents to isolate RNA. The remaining two isolation techniques used the same commercial RNA extraction kit, TransZol Up Plus RNA kit (TransGen Biotech, China). One followed the extraction kit’s protocol, while the other modified the protocol. Total RNA was extracted from three seawater samples of three occasions of HAB in Sepanggar Bay. The most effective approach used to extract high-quality RNA from the environmental samples of the HABs was the TransZol Up Plus RNA kit, with modified protocol. Results of the modified protocol generated a high-purity total RNA, ranging from 2.081 to 2.474 for both the absorbance ratios A260/280 and A260/230. The RNA integrity number value ranged from 6.2 to 7.6. All of the samples resulted in concentrations up to 91 ng/µl. We concluded that the modified protocol of TransZol Up Plus RNA kit yielded the highest quality total RNA for metatranscriptome next-generation sequencing (NGS). Apart from NGS, the high-quality RNA can also be used for various downstream applications, including real-time PCR, RNA cloning, and RNA microarray analysis.
The effect of speaker reliability on adult cross-situational word learning
Authors: Rivera-Vera Natalia Alejandra , Andringa Sible , Kronmüller Edmundo , Monaghan Padraic , Rispens Judith Elisabeth
Published: September 2022

Word learning is guided by the statistical co-occurrence between spoken words and potential referents, through which learners gradually map labels to objects across situations. Given that word learning does not occur in a vacuum, rather in a communicative context, it is relevant to evaluate the role that speakers play. Because we do not evaluate the information provided by every person equally, it is reasonable to think that someone who makes lexical errors is not a reliable speaker from whom to learn new words. The current study focuses on speaker reliability in adult cross-situational word learning (CSWL). In two experiments we investigated the extent to  which  adults  attend  to  the  reliability  of  the  speaker  and  how  this  affects  word  learning  in  a CSWL task. We varied the consistency with which a speaker mapped novel words to familiar objects. We hypothesized (1) that the speakers’ reliability would be judged differently depending on their past object-labeling accuracy, and (2) that new words would be more difficult to learn when  presented  by  an  unreliable  speaker.  Experiment  1  shows  that  the  unreliable  speaker  was  assessed  as  less  reliable,  compared  to  the  reliable  speaker,  but  this  effect  disappeared  in  Experiment  2,  when  participants  were  taught  new  words  by  two  speakers,  a  reliable  and  an  unreliable  one.  Furthermore,  we  found  no  evidence  to  support  the  hypothesis  that  being  exposed  to  an  unreliable  speaker  impairs  CSWL  in  adults.  We  discuss  the  relevance  of  these  findings and the importance of further research on the role of speaker reliability in CSWL.
Lebensmittelsicherheit als europäische Aufgabe
Authors: Bender Hanno
Published: September 2022

Das Bundesamt für Verbraucherschutz und Lebensmittelsicherheit (BVL) wurde vor 20 Jahren gegründet. Das Jubiläum gab Anlass zur Bilanz und für Ausblicke.
Italpizza startet unter Marke in Deutschland
Authors: Bender Ralf
Published: September 2022

Mit seinem 26x38-Format hat sich Italpizza in gut fünf Jahren die Marktführerschaft in Italien erarbeitet. Mit derselben Strategie will das Unternehmen nun auch im Ausland Fuß fassen.
The Beginning of Functional Accelerator Era
Authors: Прозоров А. , Бахарев А. , Горбачев Н. , Кольжанова И. , Шнырев Р.
Published: September 2022

Опыт эксплуатации облачных и киберфизических систем свидетельствует о начале процесса структуризации вычислительных задач и топологии инфраструктуры их решения. Физический уровень инфраструктуры цифровой трансформации сегодня существенно изменяется.

Judging by the recent track record of operating cloud-based and cyberphysical systems, a structuring of compute tasks and topology of infrastructure running them has begun necessary for the hyperautomation of manufacturing, management, and maintenance workflows. The physical layer of the digital transformation infrastructure is currently undergoing a large-scale change.
HUBUNGAN AKTIVITAS FISIK DENGAN KEJADIAN EXCESSIVE DAYTIME SLEEPINESS PADA MAHASISWA TINGKAT AKHIR
Authors: Hamdi Mardiah Mila
Published: September 2022

ABSTRAK
Excessive Daytime Sleepiness (EDS) sering dikeluhkan mahasiswa keperawatan semester akhir yang dapat mengakibatkan kondisi kesehatan memburuk. Aktivitas fisik merupakan salah satu faktor yang dapat mempengaruhi kejadian EDS. Penelitian ini bertujuan untuk mengetahui hubungan aktivitas fisik dengan EDS pada mahasiswa tingkat akhir Fakultas Keperawatan Universitas Riau. Desain penelitian deskriptif korelasi menggunakan pendekatan cross sectional. Sampel 120 responden, pengambilan sampel simple random sampling. Aktivitas fisik diukur menggunakan kuesioner International Physical Activity Questioner (IPAQ), sedangkan Kejadian EDS diukur menggunakan kuesioner Epworth Sleepiness Scale (ESS) yang dimodifikasi oleh peneliti dan telah diuji validitas dengan koefisien korelasi 0,478-0,855. Analisis yang digunakan analisis univariat untuk melihat distribusi frekuensi dan bivariat menggunakan uji Chi-Square. Hasil penelitian ini menunjukkan responden dengan tingkat aktivitas fisik ringan yang mengalami EDS sebanyak 24 responden (75,0%). Hasil uji statistik didapatkan p value = 0,021 < α (0,05), berarti Ho ditolak. Ada hubungan aktivitas fisik dengan kejadian EDS pada mahasiswa tingkat akhir Fakultas Keperawatan Universitas Riau. Hasil penelitian ini diharapkan dapat menjadi sumber informasi pentingnya mengontrol aktivitas fisik untuk mencegah terjadinya EDS.
Kata kunci: Aktivitas fisik, excessive daytime sleepiness, mahasiswa
 
ABSTRACT
Excessive Daytime Sleepiness (EDS) is often complained by nursing students in the final semester which can make health condition worst. Physical activity is one of the factors that can affect the incidence of EDS. This research aimed to determine the correlation between physical activity with the incidence EDS in final year students at the Faculty of Nursing, University of Riau. This research used a descriptive analytic study design with a cross sectional research design. The sampling technique used simple random sampling with 120 respondents. Physical activity was measured by using International Physical Activity Questioner (IPAQ) while EDS was measured by using Epworth Sleepiness Scale (ESS) modified by the researcher and has been tested for the validity with a correlation value 0,478-0,855. The analysis used univariate analysis to see the frequency distribution and bivariate used the Chi-Square test. The results of this research showed that respondents experienced EDS with light physical activity levels were 24 (75,0%). The statistical test results obtained p value = 0.021< α (0.05), meaning that Ho is rejected. There is a correlation between physical activity with the incidence of EDS in final year students. The results of this study are expected to be a source of information about the important to control physical activity to prevent the occurrence of EDS.
Keywords: Excessive daytime sleepiness, physical activity, students
PENGARUH PEMBERIAN SEDUHAN REBUSAN MAHKOTA DEWA (Phaleria macrocarpa) DAN DAUN PANDAN WANGI (Pandanus amaryllifolius roxb) TERHADAP GULA DARAH PADA PENDERITA DIABETES MELITUS (DM)
Authors: Sakina Nur Ela Janniati
Published: September 2022

Mahkota dewa (Phaleria macrocarpa) dan daun pandan wangi (Pandanus amaryllifolius roxb) merupakan tanaman herbal yang mengandung zat aktif yang berperan dalam menurunkan kadar gula darah. Mahkota dewa mengandung saponin, terpenoid, tanin, fefenol, flavonoid, dan alkaloid sedangkan daun pandan mengandung tanin, alkaloid, dan flavonoid. Penelitian ini bertujuan untuk mengetahui pengaruh seduhan rebusan mahkota dewa dan daun pandan wangi terhadap gula darah pada penderita diabetes mellitus (DM). Metode: Penelitian ini menggunakan desain Quasy Experiment. Responden dalam penelitian ini adalah 15 pasien terdiagnosis DM dengan kadar gula darah 200 di Puskesmas Rejosari, sampel penelitian diambil berdasarkan kriteria inklusi menggunakan teknik purposive sampling. Analisis yang digunakan adalah analisis univariat untuk melihat distribusi frekuensi dan analisis bivariat menggunakan uji Wilcoxon. Hasil: Hasil uji statistik menunjukkan ada pengaruh seduhan rebusan mahkota dewa dan daun pandan wangi terhadap gula darah pada penderita diabetes mellitus (DM) dengan nilai p (0,000) < alpha (0,05). Kesimpulan: Ada pengaruh seduhan rebusan daun mahkota dewa dan daun pandan wangi terhadap kadar gula darah penderita diabetes mellitus (DM) di wilayah kerja Puskesmas Rejosari Pekanbaru.
 
Kata kunci : Mahkota dewa, daun pandan wangi, diabetes melitus, gula darah
Faktor Yang Berhubungan Dengan Pengetahuan Ibu Hamil Mengenai Tanda Bahaya Dalam Kehamilan Di Rsud Labuang Baji Kota Makassar Provinsi
Authors: Ahmad Haslinah HA , Harahap Yanna wari , Rangkuti Juni Andriani
Published: September 2022

ABSTRAKStress merupakan kondisi ketergantungan yang mempengaruhi emosi, proses berpikir, dan kondisi seseorang kinerja merupakan hasil kualitas dan kuantitas yang dihasilkan oleh seseorang berdasarkan persyaratan dan waktu tertentu. Penelitian ini bertujuan Untuk mengetahui hubungan stres dengan perubahan kinerja perawat. Desain penelitian yang digunakan adalah analitik dengan pendekatan cross sectional dengan jumlah sampel 30 orang perawat,penentuan besar sampel menggunakan total sampling. Pengumpulan data menggunakan kerja.kuesioner.pengolahan data dengan program SPSS 22.0 yang disahjikan dalam bentuk narasi dan tabel.uji statistik yang digunakan adalah chi-square dengan tingkat kemaknaan a=0,05 Berdasarkan hasil uji statistik chi-square, menujukan bahwa ada hubungan yang bermakna antara stres kerja dengan kinerja perawat. Disarakan diharapka kepada rumah sakit agar memperhatikan lingkungan dan kapasitas kerja yang baik supaya para perawat dapat memberikan pelayanan kepada pasien agar petugas kesehatan tidak mengalami stress.Kata kunci : stres kerja dan kinerja perawat
Evaluating the contribution of the unexplored photochemistry of aldehydes on the tropospheric levels of molecular hydrogen (H2)
Authors: Pérez-Peña Maria Paula , Fisher Jenny A. , Millet Dylan B. , Yashiro Hisashi , Langenfelds Ray L. , Krummel Paul B. , Kable Scott H.
Published: September 2022

Abstract. Molecular hydrogen, H2, is one of the most abundant trace gases in the atmosphere. The main known chemical source of H2 in the atmosphere is the photolysis of formaldehyde and glyoxal. Recent laboratory measurements and ground-state photochemistry calculations have shown other aldehydes photodissociate to yield H2 as well. This aldehyde photochemistry has not been previously accounted for in atmospheric H2 models. Here, we used two atmospheric models to test the implications of the previously unexplored aldehyde photochemistry on the H2 tropospheric budget. We used the AtChem box model implementing the nearly chemically explicit Master Chemical Mechanism at three sites selected to represent variable atmospheric environments: London, Cabo Verde and Borneo. We conducted five box model simulations per site using varying quantum yields for the photolysis of 16 aldehydes and compared the results against a baseline. The box model simulations showed that the photolysis of acetaldehyde, propanal, methylglyoxal, glycolaldehyde and methacrolein yields the highest chemical production of H2. We also used the GEOS-Chem 3-D atmospheric chemical transport model to test the impacts of the new photolytic H2 source on the global scale. A new H2 simulation capability was developed in GEOS-Chem and evaluated for 2015 and 2016. We then performed a sensitivity simulation in which the photolysis reactions of six aldehyde species were modified to include a 1 % yield of H2. We found an increase in the chemical production of H2 over tropical regions where high abundance of isoprene results in the secondary generation of methylglyoxal, glycolaldehyde and methacrolein, ultimately yielding H2. We calculated a final increase of 0.4 Tg yr−1 in the global chemical production budget, compared to a baseline production of ∼41 Tg yr−1. Ultimately, both models showed that H2 production from the newly discovered photolysis of aldehydes leads to only minor changes in the atmospheric mixing ratios of H2, at least for the aldehydes tested here when assuming a 1 % quantum yield across all wavelengths. Our results imply that the previously missing photochemical source is a less significant source of model uncertainty than other components of the H2 budget, including emissions and soil uptake.
Reviews and syntheses: Iron: A driver of nitrogen bioavailability in soils?
Authors: Slimani Imane , Barker Xia-Zhu , Lazicki Patricia , Horwath William
Published: September 2022

Abstract. An adequate supply of bioavailable nitrogen (N) is critical to soil microbial communities and plants. Over the last decades, research efforts have rarely considered the importance of reactive iron (Fe) minerals in the processes that produce or consume bioavailable N in soils, compared to other factors such as soil texture, pH, and organic matter (OM). However, Fe is involved in both enzymatic and non-enzymatic reactions that influence the N cycle. More broadly, reactive Fe minerals restrict soil organic matter (SOM) cycling through sorption processes, but also promote SOM decomposition and denitrification in anoxic conditions. By synthesizing available research, we show that Fe plays diverse roles in N bioavailability. Fe affects N bioavailability directly by acting as a sorbent, catalyst, and electron transfer agent, or indirectly by promoting certain soil features, such as aggregate formation and stability, which affect N turnover processes. These roles can lead to different outcomes on N bioavailability, depending on environmental conditions such as soil redox shifts during wet-dry cycles. We provide examples of Fe-N interactions and discuss the possible underlying mechanisms, which can be abiotic or microbially meditated. We also discuss methodological constraints that hinder the development of mechanistic understanding of Fe in controlling N bioavailability and highlight the areas of needed research.
Simulating marine neodymium isotope distributions using ND v1.0 coupled to the ocean component of the FAMOUS-MOSES1 climate model: sensitivities to reversible scavenging efficiency and benthic source distributions
Authors: Robinson Suzanne , Ivanovic Ruza , Gregoire Lauren , Tindall Julia , van de Flierdt Tina , Plancherel Yves , Pöppelmeier Frerk , Tachikawa Kazuyo , Valdes Paul
Published: September 2022

Abstract. The neodymium (Nd) isotopic composition of seawater is a widely used ocean circulation tracer. However, uncertainty in quantifying the global ocean Nd budget, particularly constraining elusive non-conservative processes, remains a major challenge. A substantial increase in modern seawater Nd measurements from the GEOTRACES programme coupled with recent hypotheses that a seafloor-wide benthic Nd flux to the ocean may govern global Nd isotope distributions (εNd) presents an opportunity to develop a new scheme specifically designed to test these paradigms. Here, we present the implementation of Nd isotopes (143Nd and 144Nd) into the ocean component of the FAMOUS coupled atmosphere-ocean general circulation model (ND v1.0), a tool which can be widely used for simulating complex feedbacks between different Earth system processes on decadal to multi-millennial timescales. Using an equilibrium pre-industrial simulation tuned to represent the largescale Atlantic Ocean circulation, we perform a series of sensitivity tests evaluating the new Nd isotope scheme. We investigate how Nd source/sink and cycling parameters govern global marine εNd distributions, and provide an updated compilation of 6,048 Nd concentration and 3,278 εNd measurements to assess model performance. Our findings support the notions that reversible scavenging is a key process for enhancing the Atlantic-Pacific basinal εNd gradient, and is capable of driving the observed increase in Nd concentration along the global circulation pathway. A benthic flux represents a major source of Nd to the deep ocean. However, model-data disparities in the North Pacific highlight that the source of εNd from seafloor sediment is too unradiogenic in our model with a constant benthic flux. Additionally, model-data mismatch in the northern North Atlantic suggests a missing source of Nd that is much more unradiogenic than the bulk sediment, alluding to the possibility of preferential contributions from ‘reactive’ detrital sediments under a benthic flux driven model of marine Nd cycling. The new Nd isotope scheme forms an excellent tool for exploring global marine Nd cycling and the interplay between climatic and oceanographic conditions under both modern and palaeoceanographic contexts.
Ondina de Christian Petzold: la espera en el progreso
Authors: Álvarez Castaño Emilio José
Published: September 2022

La imagen habitual que se tiene de las ondinas es la de seres malvados, idea que se extendió en el siglo XIX especialmente. En cambio, los orígenes de este personaje mitológico presentan una doble cara, ya que también se pueden encontrar elementos positivos. Ondina de Christian Petzold, inspirada en el relato de Fouqué, crea una nueva significación para la figura de la ondina basada en dicha ambigüedad y la muestra en dos aspectos principales: la ciudad de Berlín (de la que se destaca su urbanismo) y las relaciones amorosas (donde el egoísmo ocupa un lugar central).
Duelos prohibidos y memorias incómodas en el teatro peruano posconflicto armado interno: Un análisis de La hija de Marcial de Héctor Gálvez
Authors: Luque Bedregal Gino
Published: September 2022

La hija de Marcial, de Héctor Gálvez, aborda un tema poco tratado en la dramaturgia peruana dedicada al conflicto armado interno (1980-2000) y casi excluido de la memoria de los años de violencia política: la representación del terrorista. La pieza, sin embargo, no se aproxima al tema a partir de la representación directa de esta figura, sino desde el drama de la hija de un militante de una agrupación terrorista, quien debe enterrar los restos de su padre, descubiertos en una fosa clandestina. El propósito del presente artículo es analizar dos debates que plantea el texto dramático y que repercuten más allá de la ficción en el Perú actual: qué funerales les corresponden a los enemigos del Estado, y cómo se configura la identidad de los hijos de terroristas en el contexto posconflicto armado interno.
A small, heated roost facilitates nursery establishment and increases the size of a lesser horseshoe bat (Rhinolophus hipposideros) colony in the northern Swiss Alps
Authors: Zingg Peter E. , von Weissenfluh Ursula , Schaub Michael
Published: September 2022

Small thermal roofs in building attics might be a promising option to maintain and support nursery colonies of bats, but little empirical evidence is available. In a controlled study conducted from 2014 to 2021 on the northern side of the Swiss Alps, we investigated the effects of a thermal roof within an attic on the establishment and size of a nursery of lesser horseshoe bats Rhinolophus hipposideros. We installed a gable roof as a thermal roof (1.4 m2 of usable roosting area with two internal heating mats) in the attic of a building that previously did not host a bat colony, monitored the temperature and later counted the number of roosting bats. The building is near a power station that hosted lesser horseshoe bats but which was shut down and becoming too cool to support a nursery colony of this species. The ridge of the thermal roof had a temperature of about 33°C, while the temperature in the building's sub-roof was lower on average and subject to greater temporal fluctuations. Two years after installation, the bats started to use the roost consistently in summer and the numbers grew from 22 in 2014 to 239 in 2021. During 136 survey days we found that 85% of the bats were roosting in the small thermal roof, and only a minority were in the much larger sub-roof suggesting that the former was preferred. Our study provides empirical evidence that a thermal roof can initiate the colonisation of a replacement roost and support colony growth.
Intervenciones genéticas de Aedes aegypti para el control de arbovirosis
Authors: Antonio Michelle Norma , Traverso Huarcaya Marco Fabriccio , Traverso Castillo Camila Alejandra , Castillo Rodriguez María Nelly
Published: September 2022

La ineficacia de las estrategias actuales para el control químico de los mosquitos vectores plantea la necesidad de desarrollar enfoques novedosos, entre estos están las estrategias genéticas para reducir las poblaciones de mosquitos vectores o sustituirlos por aquellos que no son capaces de transmitir patógenos, esto se logra a través de herramientas moleculares que permiten la manipulación y transgénesis de genes. Las secuencias del genoma de los mosquitos y las bases de datos de marcadores de secuencias expresadas asociadas permiten investigaciones a gran escala para proporcionar nuevos conocimientos sobre las vías evolutivas, bioquímicas, genéticas, metabólicas y fisiológicas. Además, la genómica comparativa revela las bases de los mecanismos evolutivos con especial atención a las interacciones específicas entre vectores y patógenos. Se ha desarrollado tecnología de transgénesis para el mosquito de la fiebre amarilla y dengue, Aedes aegypti. Se ha logrado integración exitosa de ADN exógeno en la línea germinal de este mosquito con los elementos transponibles. La disponibilidad de múltiples elementos y genes marcadores proporciona un poderoso conjunto de herramientas para investigar las propiedades biológicas básicas de este insecto vector, así como los materiales para desarrollar nuevas estrategias de control genético de poblaciones de mosquitos basadas en la técnica del insecto estéril. Una de estas estrategias consiste en liberar a la población machos esterilizados por radiación; otro, de integrar un gen letal dominante bajo el control de un promotor específico en hembras inmaduras. El uso de esta técnica de modificación genética constituirá una herramienta importante para el manejo integrado de vectores.