bluuebunny/crossref_metadata_2025 huggingface dataset:
EVALUATION AND EXPLORATION OF MANAGEMENT CONTROL SYSTEMS IN VILLAGE OWNED ENTERPRISES
Authors:   Faculty of Economic and Business, Universitas Muhammadiyah Riau, Indonesia, Azhari Intan Putri , Bustamin Bustamin ,   Faculty of Syariah, IAIN Batusangkar, Indonesia
Published: March 2022

Village-Owned Enterprises (BUMDes) Panggung Lestari is one of the reference BUMDes in Indonesia as it has run multiple business units and has successfully contributed significant Village Original Income (PADes) to the village. The research goal is to evaluate and provide solutions for implementing MCS in Panggung Lestari. Qualitative descriptive research method and case study approach by collecting data through observation, in-depth interviews, and documentation review. Then perform data triangulation so that the data can be interpreted and closed. The results showed that Panggung Lestari was regulated by Village Regulation No. 9 of 2016 and AD/ART. However, BUMDes Panggung Lestari did not have detailed operations guidelines, such as standard operating procedures and job descriptions. Panggung Lestari also did not yet have strategic planning and budgeting. Corporate level performance measurement is regulated from the top down but has not been well documented. While measuring performance at the business unit level, only the KUPAS Business Unit has performance measurement parameters for employees, while other business units do not yet have performance measurement parameters. Performance incentives are given in financial form but for employees who did not have a good system. The bottom line is that the BUMDes don't have a good MCS yet, so management needs improvement.
THE ROLE OF PERSONALITY ASPECTS AND EMPLOYEE COMMITMENTS AS AM EFFORT TO MAXIMIZE WORK PERFORMANCE
Authors:   Faculty of Economics and Business, Universitas Indonesia, Indonesia, Sembhodo Abimanyu Tuwuh , Hermawati Adya ,   Magister of Management, Postgraduate Program, Universitas Widyagama Malang, Indonesia, Sodik Sodik ,   Faculty of Economics and Business, Universitas Widyagama Malang, Indonesia, Bahri Syamsul ,   Faculty of Economics and Business, Universitas Widyagama Malang, Indonesia, Syahruddin Syahruddin ,   Universitas Musamus Merauke, Indonesia, Ali Shujahat ,   Mirpur University of Science and Technology Pakistan, Pakistan
Published: March 2022

This study presents a model that links work performance, leadership behavior, personality, and work commitment. The main objective is to investigate the direct and indirect effects of personality, work commitment, and leadership behavior on work performance. The data was obtained through a questionnaire from a sample of 125 employee respondents at PT Gradion Supermarket Malang Raya. The data were analyzed by multiple regression analysis. There were seven hypotheses proved in this study. The results reveal that leadership behavior can positively contribute to employee performance. In addition, work personality also positively contributes to employee performance, work commitment positively contributes to work performance, and the work environment contributes better to leadership behavior. The results of the mediation test show that work personality has contributed well to employee work performance with the leader's behavior being implemented optimally, and work commitment is highly conditioned on employee performance by applying maximum leadership behavior. Leadership behavior has been able to make a positive contribution to the work performance of PT Gradion Supermarket employees. Employee personality makes a positive contribution to PT Gradion Supermarket employee performance. Work commitment makes a positive contribution to PT Gradion Supermarket employee performance. Personality has a positive contribution to behavior leadership.
TIK TOK AS A PROMOTIONAL MEDIA TO INFLUENCE CONSUMER PURCHASE DECISIONS
Authors:   Sekolah Tinggi Ilmu Ekonomi Bali International Institute of Tourism Management, Indonesia, Martini Luh Kadek Budi , Suardhika I Nengah ,   Universitas Mahasaraswati Denpasar, Indonesia, Dewi Luh Komang Candra ,   Universitas Triatma Mulya, Indonesia
Published: March 2022

The main purpose of this study is to analyze Tik Tok media as the main consideration in purchasing decisions for culinary products and Tik Tok as a medium for promoting culinary products to purchase decisions. This research was conducted in Denpasar City with a sample of 120 respondents. The data was collected using Google Forms. Data were analyzed qualitative and quantitative using a Likert scale. Inferential statistical analysis was used to draw inference from the sample to the population and hypothesis testing using Partial Least Square (PLS) with Smart-PLS 3.0. The study results found that the more informative the promotion with social media on the Tik Tok application, the more buying interest and ultimately convincing consumers to purchase. Purchase intention has a full mediation effect on the informative indirect effect on purchasing decisions for culinary products.
IMPROVING FINANCIAL BEHAVIOR OF MILLENNIAL GENERATION THROUGH ATTITUDE, KNOWLEDGE, AND CONFIDENCE DURING THE COVID-19 PANDEMIC
Authors:   Vocational School, Diponegoro University, Indonesia, Yudha Aji , Martanti Elisa ,   Vocational School, Diponegoro University, Indonesia
Published: March 2022

The COVID-19 pandemic has increased people's expenses, so good knowledge in managing finances is needed. The millennial generation is one of the community groups known to be consumptive and have a low level of financial literacy. Whether or not financial management is good is based on the level of community financial literacy. That indicates that the better people's financial literacy, the better they will manage finances. Financial literacy consists of financial behavior, financial attitude, financial knowledge, and financial confidence. Therefore, this study examines the relationship between financial attitude, financial knowledge, and financial confidence in financial behavior. This study also establishes a comprehensive financial literacy model to increase financial literacy during the COVID-19 pandemic. Lastly, this study contributes to the literature developing a financial literacy model for millennials in small towns. This study involved 146 respondents from the millennial generation in Rembang City. Testing was carried out using SEM GeSCA. The results indicated that the factors that directly affect financial behavior are financial attitude and financial confidence. Financial knowledge was found to influence financial behavior indirectly. However, the study results revealed that financial knowledge does not directly affect financial behavior. Future studies can add new variables with a larger sample to obtain more general results.
Effects of a newly designed paediatric pulmonary heart valve on hemodynamic function
Authors: Suzuki Kenji
Published: March 2022

Congenital heart disease is one of the most common types of birth defect. If there is an obstruction of the right ventricular outflow tract, it is often necessary to provide a reconstruction of this outflow tract which is normally performed in the neonatal period. However, in Japan
there is no commercially-available prosthetic valve of the appropriate size. Senior Assistant Professor Kenji Suzuki is a paediatric cardiac surgeon based within the Nippon Medical School Musashikosugi Hospital, Japan, who is working to develop a pulmonary valve prosthesis in the paediatric
field. He and his team are working to develop a new design of pulmonary valve prosthesis that avoids dysfunction such as thrombus formation and reduced mobility of valve leaflets and the researchers are investigating the effects of a newly designed paediatric pulmonary heart valve on hemodynamic
function. To do this, the team will construct a circulatory simulator that mimics the right heart system and measure the right ventricular pressure and pulmonary artery pressure waveform, which will enable them to calculate the regurgitation rate. The researchers will observe valve leaflet
motion by video recording. In preliminary experiments, Suzuki and the team have already shown that the regurgitation rate and pressure gradient are lower than those of the prosthetic valve they previously developed and, looking ahead, the researchers plan to gather more data and fine-tune
the structure.
Development of estimation method through thermal conductivity and local structure of aluminoborosic acid melt
Authors: Morita Kazuki
Published: March 2022

The development of new and improved means of steel production would be beneficial for industries across the globe. Professor Kazuki Morita, Department of Materials Engineering, The University of Tokyo, Japan, is developing a means of measuring thermal conductivity in order to clarify
the properties of materials during production processes. A key focus for Morita is on the development of a prediction method for any physical or physicochemical properties of various materials. In a current project, he and the team are studying the mechanism of expression of thermal conductivity
and thermodynamic properties of acid-based oxides. In order to control the heat flow process and devise improvements it's necessary to optimise the thermal conductivity of the flux system. In doing so, the team is seeking to reveal more data and better understand the thermal conductivity of
the mold flux. In their work, the researchers are using high temperature furnaces in order to ensure that the materials remain extremely hot, as well as gas flowing systems to control the atmosphere and hot wire cells to measure thermal conductivity. To date, Morita and the team have successfully
explained the qualitative behaviour of thermal conductivity with composition change but believe there remains more to be done to quantitatively assess the results. If they can predict the behaviour of slags and metals during cooling the researchers believe they will be able to improve the
performance of the continuous casting of steel and avoid accidents such as breakout.
Formulation of soil CO2 gas efflux with soil conditions to estimate its increasing rate and a baseline for CO2 capture and geological storage in shallow aquifers
Authors: Sasaki Kyuro , Salmawati Salmawati
Published: March 2022

The use of fossil fuels remains prevalent despite the known negative environmental impacts. Greenhouse gas (GHG) emissions are rising and so are global temperatures. One technique designed to mitigate GHG emissions is CO2 geological storage, whereby CO2 is stored
underground. The sites chosen for CO2 storage need to be monitored in order to ensure there is no leakage. A collaborative team involving researchers based at Kyushu University, Japan, including Kyuro Sasaki and Dr Salmawati Salmawati who is currently a Senior Mine Environmental
Analyst from PT Tura Consulting Indonesia, is engaged in an important project. It includes performing diagnostics of existing data on GHG emissions in the mining sector, which represents the first step towards the design of Indonesia's own Climate Smart Mining Roadmap in the future. A key
focus for the researchers is on developing a device that can automatically and continuously monitor the surface flux in order to detect any leakage in carbon capture storage (CSS) sites. Key to this is measuring the natural gas flux and the surrounding characteristics, particularly those relating
to the soil, such as temperature, moisture and carbon content. The researchers plan to measure this baseline data for a year in order to acquire the data necessary to accurately detect the leakage. The researchers found that the response of the soil moisture to soil CO2 flux was
different in summer and winter, and changes were also detected depending on rainfall events.
Development of a new generation of ion beams
Authors: Nojima Masashi
Published: March 2022

Ion beams have many applications. Junior Associate Professor Masahi Nojima, Research Institute of Science and Technology at the Tokyo University of Science, Japan, is working to create a new generation of ion beams. Already, he has successfully developed new techniques for producing
focused ion beams (FIB). In his most recent work, Nojima has developed a metallic solution ion source that will be used to construct unknown functional materials by using ion beams made up of specific elements. The metallic solution ion source can generate a copy of an original structure using
elementally selected materials. With support from the Japan Society for the Promotion of Science (JSPS), KAKENHI, the academic incentive system of the KIOXIA Corporation 2021 and the Toshiba Electric Devices & Storage Corporation 2021, Nojima is seeking to open up new materials for use
as ion sources utilising electrospray ionisation (ESI) methods. By harnessing the elements of FIBs primarily created from liquid metal ion source (LMIS) by field ionisation processes, Nojima hopes to create new generations of ion beams. To date, he and the team have displayed the result of
mass separating metallic ion solution ion beams on random conditions and, looking ahead, intend to estimate the stopping range of mass selected ion beams in solid materials.
Multistep inorganic synthesis and thermal insulation based on 3D THz phononic structure
Authors: Satoh Norifusa
Published: March 2022

In order to mitigate climate change, there is a need for new methods and technologies that will help reduce humankind's reliance on fossil fuels and this is something that scientists and researchers are integral to. At the National Institute for Materials Science (NIMS), Japan, Dr Norifusa
Satoh is leading a project based on thermal insulation that has the potential to advance energy utilisation principles and techniques. Satoh has been interested in biological systems and how they can help in the development of improved inorganic materials. Currently, he is exploring methods
of insulating heat at the same level as electricity. The key focus is 3D periodical structures matching the periodicity with the wavelength of THz phonons, quantised vibrations in thermal transport in materials over room temperature. Because the wavelength of THz phonons is less than 1 nm,
to examine 3D THz phononic structures, he attempts to synthesise 3D periodical structures with atomic precision in a multistep manner based on the logic of chemical synthesis. Satoh intends to adapt previously developed methodologies to visualise the thermal resistivity of thermoelectric modules
using heat sinks with a thermogram, which will enable him to test and validate his research findings. Ultimately, he hopes the fundamental understanding of THz phonons will contribute to energy savings in myriad ways and help pave the way towards a carbon-free future society.
ELEKTRİK GÜÇ SİSTEMLERİNDE GÜÇ AKIŞI ANALİZİ VE BİR EĞİTİM ARACININ GELİŞTİRİLMESİ
Authors: ŞENGÖR İbrahim , KAYA Mehmet Cenk
Published: March 2022

Gelişen teknoloji ve artan çevresel kaygılar, elektrik enerjisine olan talebi her geçen gün artırmaktadır. Ayrıca, elektrik güç sistemlerinin (EGS) işletimi sırasında en çok zorlanılan konulardan biri de sürdürülebilir ve kaliteli elektrik enerjisi sağlamaktır. Diğer yandan, üretim tarafında rüzgar ve güneş gibi yenilenebilir enerji kaynakları dahil edilirken tüketim tarafında da elektrikli araçlar gibi yeni yüklerin sayısı artmaktadır. Bahsedilen gelişmeler, EGS’lerde çözülmesi gereken önemli operasyonel sorunlara neden olmaktadır. Uygulama sürecinde oluşabilecek sorunları önceden tespit edilebilmesi için güç akış analizi önem kazanmıştır. Güç akışı, hatlardaki aktif ve reaktif güç akışını, baraların voltajını ve faz açısını, hatlardan geçen akımı ve buna bağlı olarak sistemde meydana gelen güç kayıplarını belirlemek için kullanılmaktadır. Bu çalışmada EGS'lerde güç akışı analizi incelenmiş ve ilgili alanda eğitim gören mühendislik öğrencilerinin güç akışını daha iyi anlamaları için bir eğitim aracı geliştirilmiştir. IEEE 14 baralı test sistemi kullanılarak QtDesigner üzerinden arayüz tasarımı sağlanmış ve Python programlama dilinin NumPy kitaplığında Newton-Raphson yöntemi kullanılarak güç akışı analizi yapılmıştır. Geliştirilen model ve arayüzün test edilebilmesi için farklı durum çalışmaları oluşturulmuştur.
AVOKADONUN BİYOAKTİF BİLEŞENLERİ VE SAĞLIK ÜZERİNE ETKİLERİ
Authors: GÜMÜŞTEPE Lale , AYDIN Ebru , ÖZKAN Gülcan
Published: March 2022

Avokado, Plantae krallığına, Lauraceae ailesine, Laurales takımına, Persea cinsine ve P. americana türüne ait bir bitkidir. İçeriğindeki zengin biyoaktif bileşenlerin ve besin öğelerinin sağlık üzerine yararlı etkileri olduğu bilinen ve süper gıda olarak kabul edilen bitkisel kaynaklı bir gıdadır. Avokado ağacının; meyvesinin eti ve kabuğu, yaprağı ve çekirdeği zengin biyoaktif bileşenler içermektedir. Meyve çekirdeği (%16) ve kabuğu (%11) bazı çeşitlerde istisnalar olmak üzere meyvenin %21-30’unu temsil eden miktarlarda katı atık oluşturmaktadır. Avokadoda en yaygın bulunan biyoaktif bileşenler polifenoller, karotenoitler, tokoferoller ve sterollerdir. Polifenoller meyve eti, kabuk, tohum ve yapraklarda; karotenoitler ve tokoferoller ise avokado meyvesinin etinde bulunmaktadır. Avokadonun zengin biyoaktif içeriğinin metabolik sendrom hastalıklarına, hipoglisemik, antihipertansif, antioksidan, obezite, hiperlipidemik, antimikrobiyal, antiprotozoal ve antimikobakteriyel vb. hastalıklara etkisi literatürde ilgi çeken bir konu haline gelmiştir. Özellikle avokado atıklarından çekirdeğinin, meyvesinin kabuğunun ve yaprağının larvisidal, antifungal, antimikrobiyal, antioksidan, antiprotozoal, antidiyabetik, antihipertansif, hiperkolesterolemik ve antimikobakteriyel aktiviteler gibi birçok hastalığı durdurucu/yavaşlatıcı etkisinin olduğu bildirilmiştir. Bu derlemede, avokado ağacının; meyvesinin eti ve kabuğunun, yaprağının ve çekirdeğinin biyoaktif bileşenleri ve bu bileşenlerin sağlık üzerine etkileri incelenecektir.
ANAEROBİK ÇAMUR ÇÜRÜTÜCÜLERDE FARKLI KATI MADDE ALIKONMA SÜRELERİNDE UÇUCU YAĞ ASİTLERİ VE ALKALİNİTENİN BİYOGAZ ÜRETİM VERİMİNE ETKİLERİ
Authors: KOYUNCU Serdar , NAS Bilgehan
Published: March 2022

Yenilenebilir enerji kaynağı olarak kullanılabilecek biyokütleden bir tanesi de atıksu arıtma tesislerinde arıtma sonrası oluşan arıtma çamurlarıdır. Arıtma çamurlarının anaerobik proseslerde çürütülmesi ile biyogaz eldesi mümkün olmaktadır. Atıksu arıtma tesislerinin işletme maliyetlerinin önemli bir kısmını enerji maliyetleri oluşturmaktadır. Anaerobik çamur çürütücülerinde maksimum verimin sağlanabilmesi için prosesin optimum katı madde alıkonma süresi (SRT)’de ve işletme parametre değerlerinde çalıştırılması gerekmektedir.

Bu çalışmada; 200 bin m3/gün kapasiteli olan ve 4 kademeli Bardenpho prosesinden oluşan Konya kentsel atıksu arıtma tesisinde bulunan 4 adet mezofilik anaerobik çamur çürütücülerde gerçek ölçekli bir araştırma yapılmıştır. Ortalama işletme sıcaklığı ve hacimleri aynı olan referans ve denek çürütücüler seçilmiştir. Referans çürütücüde, tasarım değeri olan SRT 20 gün olacak şekilde 240 gün boyunca, denek çürütücülerde ise SRT 17 ve 23 gün olacak şekilde 120’şer gün boyunca gerçek ölçekli proses işletilmiştir. Anaerobik çamur çürütücülerin işletme parametrelerinden olan Uçucu Yağ Asitleri (UYA) ve Alkalinite değerlerinin farklı SRT’lerde biyogaz üretimine olan etkileri araştırılmıştır. SRT 17, 20 ve 23 gün için sırasıyla %86, %83, %87 UYA giderimi gerçekleşmiştir. En fazla biyogaz üretimi SRT 17 gün senaryosunda ortalama 4,756 m3/gün olarak gerçekleşmiştir.
DEĞİŞTİRİLMİŞ AYRIK HAAR DALGACIK DÖNÜŞÜMÜ İLE YENİ BİR HİSTOGRAM EŞİTLEME YÖNTEMİ
Authors: BULUT Faruk
Published: March 2022

Histogram eşitleme dijital görüntülerin kontrastını artırmak için kullanılan yöntemlerden biridir. İdeal histogram eşitleme yöntemlerinde, girdi ve çıktı arasındaki görüntü benzerliğini koruyarak histogramdaki dağılımları tekdüze hale getirerek kontrast gerilmektedir. Frekans alanında yapılan bu çalışmada, Düşük Dinamik Aralığında değiştirilmiş ayrık Haar Dalgacık Dönüşümü ile yeni bir görüntü kontrast germe yöntemi önerilmiştir. Bu yöntemde Olasılık Kütle Fonksiyonunu ile frekansların yüksek geçiş kanalında gürültülü frekanslara bir baskılama işlemi gerçekleştirilmiştir. Daha sonra yapılan frekans dönüşümlerinde histogram frekansların dinamik aralıklarında önemli bir azalma sağlanmıştır. Frekans alanındaki bu işlem görüntüde standart sapmanın artmasını sağlayarak görüntü kalitesinin iyileşmesini sağlar. Kıyaslamalı bir veri seti üzerinde yapılan deneysel çalışmalarda, önerilen yöntem konvansiyonel metotlarla kıyaslanmış ve umut verici sonuçlar elde edilmiştir. Görüntü kalitesi değerlendirme metriklerinden Tepe Sinyal Gürültü Oranı (PSNR), Ortalama Kare Hata (MSE), Yapısal Benzerlik Endeks Ölçütü (SSIM) ve Kontrast değeri deneysel çalışmalarda kullanılmıştır. Önerilen bu yaklaşım ile elde edilen sonuçlar diğer algoritmaların sonuçları ile kıyaslandığında hem kalitatif hem de kantitatif açıdan başarılı bulunmuştur.
ÇOK AMAÇLI EVRİMSEL ALGORİTMALAR İLE FİLTRE TASARIMI
Authors: ULUSLU Ahmet
Published: March 2022

Birçok iletişim sistemi, radyo frekans (RF) filtreleriyle sinyal işleyen bir radyo frekans ön ucuna ihtiyaç duyar. Mikroşerit filtreler bunu gerçekleştirebilmenin oldukça düşük maliyetli ve kolay bir yöntemidir. Filtreler, mikrodalga teknolojisini kullanan uygulamalarda önemli bir yere sahiptir. Aynı zamanda mikroşerit filtreler, GSM (900MHz,1800MHz), WLAN (2,45GHz), WİMAX (3,5GHz) vb. kablosuz ve mobil haberleşme sistemlerindeki gelişmelerle beraber yoğun olarak kullanılmaktadır. Kullanılabilir boyut, yüksek performans ve düşük maliyet gibi ortaya atılan kriterleri karşılamak için milimetre ve mikrodalga sistemlere artan büyük bir ilgi vardır. Bu makalede, dizi (filtre kat sayısı) n = 8-12 arası değişen değerler için 1,6 mm dielektrik yüksekliğine sahip, geçirgenlik 4,4 değeri için WLAN (2,45GHz) ve WİMAX (3,5GHz) frekansında çalışan mikroşerit düzeni kullanılarak düşük maliyetli ve düşük ekleme kayıplı S-bant alçak geçiren filtrenin (AGF) tasarımını evrimsel algoritmalar ile kolaylaştırılmasını göstermektedir. Bu çalışmada standart yapılanlara ek olarak değişken filtre kat sayısı ve simetri durumu problemin zorluk derecesini bir basamak daha ileri götürmektedir. Tasarım simülasyonu, MATLAB programı kullanılarak gerçekleştirilmektedir. Tasarım sonucunda algoritmaların başarı grafiklerinin yanı sıra her algoritma için tasarlanan filtrenin S11 ve S21 (dB) parametreleri MATLAB programı ile çizdirilmiştir. En başarılı sonuç olan diferansiyel evrim algoritması ile yapılan optimizasyon ile elde edildiği görülmüş ve farklı bir frekans bandı için ayrıca bir yapılmıştır.
Exploring Infant Fall Events Using Online Parenting Discussion Forums: Infodemiology Study
Authors: Cooray Nipuna , Sun Si Louise , Adams Susan , Keay Lisa , Nassar Natasha , Brown Julie
Published: March 2022

Background

Falls represent the most common mechanism of injury requiring hospitalization among children under 12 months, and they commonly result in traumatic brain injury. Epidemiological studies exploring infant falls demonstrate the experienced burden, but they lack contextual information vital to the development of preventive interventions.

Objective

The objective of this study was to examine contextual information for falls involving children under 12 months, using online parenting discussion forums.

Methods

Online parenting forums provide an unobtrusive rich data source for collecting detailed information about fall events. Relevant discussions related to fall incidents were identified and downloaded using site-specific Google Search queries and a programming script. A qualitative descriptive approach was used to analyze the incidents and categorize contextual information into “precursor events” and “influencing factors” for infant falls.

Results

We identified 461 infant fall incidents. Common fall mechanisms included falls from furniture, falls when being carried or supported by someone, falls from baby products, and falls on the same level. Across the spectrum of fall mechanisms, common precursor events were infant rolling off, infant being alone on furniture, product misuse, caretaker falling asleep while holding the infant, and caretaker tripping/slipping while carrying the infant. Common influencing factors were infant’s rapid motor development, lapses in caretaker attention, and trip hazards.

Conclusions

The findings define targets for interventions to prevent infant falls and suggest that the most viable intervention approach may be to target parental behavior change. Online forums can provide rich information critical for preventive interventions aimed at changing behavior.
Evaluation of a Circadian Rhythm and Sleep-Focused Mobile Health Intervention for the Prevention of Accelerated Summer Weight Gain Among Elementary School–Age Children: Protocol for a Randomized Controlled Feasibility Study (Preprint)
Authors: Moreno Jennette P , Dadabhoy Hafza , Musaad Salma , Baranowski Tom , Thompson Debbe , Alfano Candice A , Crowley Stephanie J
Published: March 2022

BACKGROUND

The i♥rhythm project is a mobile health adaptation of interpersonal and social rhythm therapy designed to promote healthy sleep and behavioral rhythms among 5-8-year olds during summer for the prevention of accelerated summer weight gain.

OBJECTIVE

This pilot study will examine the feasibility, acceptability, and preliminary efficacy of the i♥rhythm intervention. This will ensure that the research protocol and procedures work as desired and are acceptable to families in preparation for the fully powered randomized controlled trial. The proposed study will examine the willingness of participants to participate in the intervention and determine whether modifications to the intervention, procedures, and measures are needed before conducting a fully powered study. We will assess our ability to (1) recruit, consent, and retain participants; (2) deliver the intervention; (3) implement the study and assessment procedures; (4) assess the reliability of the proposed measures; and (5) assess the acceptability of the intervention and assessment protocol.

METHODS

This study will employ a single-blinded 2-group randomized control design (treatment and no-treatment control) with randomization occurring after baseline (Time 0) and 3 additional evaluation periods (postintervention [Time 1], and 9 months [Time 2] and 12 months after intervention [Time 3]). A sample of 40 parent-child dyads will be recruited.

RESULTS

This study was approved by the institutional review board of Baylor College of Medicine (H-47369). Recruitment began in March 2021. As of March 2022, data collection and recruitment are ongoing.

CONCLUSIONS

This study will address the role of sleep and circadian rhythms in the prevention of accelerated summer weight gain and assess the intervention’s effects on the long-term prevention of child obesity.

CLINICALTRIAL

ClinicalTrials.gov NCT04445740; https://clinicaltrials.gov/ct2/show/NCT04445740.

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/37002
Investigation of air change rate and aerosol behavior during an outbreak of COVID-19 in a geriatric care facility (Preprint)
Authors: Ishigaki Yo , Yokogawa Shinji , Minamoto Yuki , Saito Akira , Kitamura Hiroko , Kawauchi Yuto
Published: March 2022

BACKGROUND

Ventilation plays an important role in controlling aerosol transmission of coronavirus disease (COVID-19), and mass transmission of COVID-19 has been reported in poorly ventilated areas.

OBJECTIVE

A real-world mass infection outbreak which occurred in an elderly nursing home, in Miyagi Prefecture, Japan, was simulated experimentally and numerically to investigate the controlling factors and quantify the effectiveness of various natural ventilation settings by means of air change rate (ACR).

METHODS

Using the CO2 tracer gas method, the ACR values at the time of the outbreak were estimated to be 2.0–6.2 h-1 in rooms in the facility. Furthermore, a low-cost intervention of opening windows improved the ventilation frequency by a factor of 1.48–5.74. This implies that advective fluid flows are the key in the spread of high CO2 concentration zones. A numerical simulation was performed to obtain spatio-temporal evolution on such high CO2 concentration zones under similar conditions to the present experiment.

RESULTS

The results showed that ventilation was significantly dependent on the window opening conditions in all rooms (p-values ranging from 0.001 to 0.03 for all the rooms). In contrast, there was no significant dependence on the location of the sensor in any of the areas. Development of high CO2 concentration zones occurs in the first few minutes. Furthermore, the leading edge of such zones towards the common room yields a relatively high fluid velocity, suggesting that the large-scale advective flow dictates the spread of such high CO2 concentration zones.

CONCLUSIONS

The present results suggest that secondary infections could occur due to the aerosol advection driven by such large-scale flows, even when the building design adheres the ventilation guidelines. In elderly care facilities, open architectural spaces are recommended to realize quality of life and monitor residents. However, management is required to reduce the downwind infection risk from aerosols and ACR.

INTERNATIONAL REGISTERED REPORT

RR2-https://doi.org/10.1101/2022.01.27.22269512
Psychiatrists’ Attitudes Toward Artificial Intelligence: Tasks, Job Security and Benefits
Abstract
Background: Researchers have predicted that artificial intelligence (AI) and machine learning (ML) will affect job security for physicians in the future, including in the mental health industry.
Objective: The objective of this study is to assess local psychiatrists’ opinions regarding the future impact of AI/ML on their daily 10 key practice tasks in addition to determine the benefits and drawbacks of AI/ML.
Methods: The design was cross-sectional and included psychiatrists (n = 62) registered in Bahrain, who participated via a Google survey.
Results: Out of 52 eligible participants, there were 43 survey respondents (81.3%). Only 9.3% of (Preprint)
Authors: Al-Medfa Mohammed
Published: March 2022

BACKGROUND

Researchers have predicted that artificial intelligence (AI) and machine learning (ML) will affect job security for physicians in the future, including in the mental health industry.

OBJECTIVE

The objective of this study is to assess local psychiatrists’ opinions regarding the future impact of AI/ML on their daily 10 key practice tasks in addition to determine the benefits and drawbacks of AI/ML.

METHODS

The design was cross-sectional and included psychiatrists (n = 62) registered in Bahrain, who participated via a Google survey.

RESULTS

Out of 52 eligible participants, there were 43 survey respondents (81.3%). Only 9.3% of respondents felt it was likely that AI/ML will replace average physicians in providing empathetic care.
Physicians speculated that AI/ML is likely to replace average physicians in tasks such as establishing prognosis (67%), synthesizing information to reach diagnosis (72.1%) and obtaining medical/psychiatric histories (51.2%); however, they were uncertain regarding other tasks, such as performing medical and mental status examinations (74.4%) and providing empathetic care (81.4%). The main benefits of AI/ML were perceived to be facilitating a quicker diagnosis (69.8%) and replacing the physician role (76.7%).
The study findings were not related to age group, gender, seniority or level of AI/ML knowledge.

CONCLUSIONS

This is the first local study to evaluate the attitudes of psychiatrists toward the effects of AI/ML on the future of psychiatry. Our findings provide useful data on the impact of AI/ML on job security as well as its benefits. Most participants were worried about the possibility of machines replacing human skills and practices and acknowledged both the advantages and challenges.
Network analysis of the #VaccinesWork hashtag on Twitter in the context of the COVID-19 pandemic (Preprint)
Authors: Fuster-Casanovas Aïna , Das Ronnie , Vidal-Alaball Josep , Lopez Segui Francesc , Ahmed Wasim
Published: March 2022

BACKGROUND

Vaccination is one of the most successful public health interventions for the prevention of COVID-19. Towards the end of April 2021, UNICEF, alongside other organizations, were promoting the hashtag 'VaccinesWork'

OBJECTIVE

The aim of this paper is to analyse the 'VaccinesWork' hashtag on Twitter in the context of the COVID-19 pandemic, analysing the main messages shared and the organizations involved

METHODS

The data set used in this article consists of 11,085 tweets containing the 'VaccinesWork' hashtag from the 29th to the 30th of April 2021. The dataset includes tweets that may not have the hashtag but were relipes or mentions in those tweets. The data were retrieved using NodeXL and the network graph was laid out using the Harel-Koren Fast Multiscale layout algorithm.

RESULTS

The study found that organizations such as WHO, UNICEF and Gavi were the key opinion leaders and had a big influence on the spread of information among users. Furthermore, the most shared URLs belong to academic journals with a high impact factor. Pro-vaccination users had other vaccination-promoting hashtags in common, not only in the COVID-19 scenario.

CONCLUSIONS

This study investigated the discussions surrounding the VaccinesWork hashtag. Social media networks containing conspiracy theories tend to contain dubious accounts leading the discussions and are often linked to unverified information. This kind of analysis can be useful to detect the optimal moment for launching health campaigns on Twitter.

CLINICALTRIAL
Provider Perspectives and Clinical Outcomes with Inpatient Telenephrology
Authors: Androga Lagu A. , Zoghby Ziad , Ramar Priya , Amundson Rachel H. , d’Uscio Margaret , Philpot Lindsey M. , Thorsteinsdottir Bjoerg , Kattah Andrea G. , Albright Robert C.
Published: March 2022

Background and objectives

Despite the dramatic increase in the provision of virtual nephrology care, only anecdotal reports of outcomes without comparators to usual care exist in the literature. This study aimed to provide objective determination of clinical noninferiority of hybrid (telenephrology plus face-to-face) versus standard (face-to-face) inpatient nephrology care.

Design, setting, participants, & measurements

This retrospective study compares objective outcomes in patients who received inpatient hybrid care versus standard nephrology care at two Mayo Clinic Health System community hospitals. Outcomes were then additionally compared with those patients receiving care at another Mayo Clinic Health System site where only standard care is available. Hospitalized adults who had nephrology consults from March 1, 2020 to February 28, 2021 were considered. Regression was used to assess 30-day mortality, length of hospitalization, readmissions, odds of being prescribed dialysis, and hospital transfers. Sensitivity analysis was performed using patients who had ≥50% of their care encounters via telenephrology. Structured surveys were used to understand the perspectives of non-nephrology hospital providers and telenephrologists.

Results

In total, 850 patients were included. Measured outcomes that included the number of hospital transfers (odds ratio, 1.19; 95% confidence interval, 0.37 to 3.82) and 30-day readmissions (odds ratio, 0.97; 95% confidence interval, 0.84 to 1.06), among others, did not differ significantly between controls and patients in the general cohort. Telenephrologists (n=11) preferred video consults (82%) to phone for communication. More than half (64%) of telenephrologists spent less time on telenephrology compared with standard care. Non-nephrology hospital providers (n=21) were very satisfied (48%) and satisfied (29%) with telenephrology response time and felt telenephrology was as safe as standard care (67%), while providing them enough information to make patient care decisions (76%).

Conclusions

Outcomes for in-hospital nephrology consults were not significantly different comparing hybrid care versus standard care. Non-nephrology hospital providers and telenephrologists had favorable opinions of telenephrology and most perceived it is as safe and effective as standard care.

Podcast

This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2022_04_11_CJN13441021.mp3
Drug Utilization Patterns of Anti Hypertensive agents in patients undergoing Hemodialysis in a Tertiary Care Hospital
Authors: P Sravan. , P Sridevi. , Lakshmi.G Anantha , Bindu.P Bindu.P , Mehnaaz Saamiya , Sathya Dharani , Nishath Syeda Uzma , Sekhar.M Soma , Raju. M Bhagavan
Published: March 2022

Background: India is experiencing a rapid health transition and is projected to become a major reservoir of chronic diseases like Diabetes and Hypertension and 25 to 40% of these subjects may develop chronic kidney disease and end stage renal disease. Aim and objective of the study was to analyze utilization pattern of antihypertensive drugs in chronic kidney disease patients in a tertiary care hospital. Methods: The present observational cross-sectional study was conducted in Apollo hospitals, Jubilee hills, Hyderabad from 01.12.2019 to 31.05.2020 on patients with chronic kidney disease stage 5. The drug utilization pattern was studied with respect to age, sex, basic disease, duration of dialysis, type of antihypertensives used, etc. Comparison of mean between gender and dialysis / not on dialysis was done using unpaired ‘t’ test. A p value of < 0.05 was taken as statistically significant. Results: Of 100 patients, the data was analyzed with respect to age categories between 18-30 years; 31-40; 41-50; 51-60; 61-70; >70 years which accounted for 10%, 11%, 20%, 35%, 21% and 3% respectively. The patients between age group between 51-60 years were more prevalent compared to other age groups, based on gender distribution, majority of sample size were found to be males (62%) followed by females (38%). In our study sample, few subjects were found to be Overweight and obese subjects accounted for 33% and 20% respectively followed by subjects with normal BMI 44% and Underweight 3%.Almost all the subjects had Comorbidities. The profound ones were Dyslipidemia, Diabetes mellitus, Hypothyroid, CAD. The contribution of hypertension to medical morbidity and mortality is therefore enormous as it has been shown in other studies with stroke, anemia, Type 2 DM, and renal failure. It is the most common associated comorbid condition among many medical admissions. Most clinicians are often guided by their preference for any of the major guidelines available for the management of hypertension. Previously, diuretics were considered to be the first-line drugs. However, guidelines by the JNC VII recommend both CCBs as well as ACE-I as first-line drugs in addition to diuretics. Conclusions: In order to treat CKD, it is important to treat hypertension as hypertension and CKD are related to each other. Treatment of hypertension will help in controlling future development of comorbidities. Calcium channel blockers and centrally acting drugs are the treatment of choice in patients with CKD stage 5D with hypertension. Multi-drug antihypertensive therapy is a better choice than mono/single-drug antihypertensive therapy.
Student’s environmental literacy: An educational program reflections for sustainable environment
Authors: Hermawan I Made Surya , Suwono Hadi , Paraniti Anak Agung Inten , Wimuttipanya Jittawisut
Published: March 2022

This study aims to reflect on educational programs on environmental sustainability by measuring the environmental literacy of high school students in Denpasar City and identifying the relationship between environmental literacy domains. The research subjects were 154 students who were taken by random sampling technique. Data analysis used descriptive statistics, Pearson product-moment correlation test, and multiple regression test. The results of data analysis showed: 1) environmental literacy of high school students in Denpasar City was categorized as moderate; 2) the domain of knowledge and cognitive skills is high, while the domain of attitudes and behavior towards the environment is moderate; 3) the knowledge domain has a significant relationship with the cognitive skill, the attitude has a significant relationship with the behavioral domain, while there is no significant relationship between the knowledge domain and the attitude domain. The findings of this study indicate that the empowerment of environmental literacy through educational institutions is not yet optimal. Therefore, local and operational educational policies are needed in the learning process to improve the environmental literacy of high school students in Denpasar City
Protection of building materials from biodeterioration
Authors: Popikhina Elena A. , Trepova Ekaterina S. , Khazova Svetlana S.
Published: March 2022

Introduction. The foci of biological damage can lead to destruction of building materials. The paper presents the results of an examination of samples of brickwork and cladding of an industrial building with traces of biological damage.

Materials and methods. The contamination of materials was identified using the Koch method. The effectiveness of biocides was evaluated using the disk diffusion method, namely, its modification applied to identify the fungicidal activity by adding antiseptics to samples of damaged building materials, identifying the number of viable microorganisms in the material, processing damaged building structures and monitoring the microorganisms on their surfaces.

Results. The number of viable microorganisms in the studied samples of building materials exceeded the acceptable value, which evidences the process of biodegradation. The resistance of isolated strains of fungi to biocides, that have various derivatives of isothiazolone as the main active ingredient, was determined.

Conclusions. Sanatex, Macrosept, Rocima GT, Rocima 243, Neomid 440 Eco can be recommended for the disinfection treatment of biologically damaged building materials.
A risk-based approach to construction control applied by a developer
Authors: Lapidus Azarij A. , Makarov Aleksandr N.
Published: March 2022

Introduction. The activity of a technical customer, performed in the course of implementing construction projects, encompasses numerous functions, including construction control. Given that multitasking is typical for intensive construction, construction control, performed by the technical customer, cannot reach 100 % of the activities conducted by the general contractor and subcontractors. Currently no regulatory documentation determines the level of danger of construction defects and violations of occupational health and safety requirements. In this regard, it is important to develop and implement methods that allow prioritizing the objects of control and management, and determine the sequence of violations to be eliminated. It is important to introduce a risk-based approach into construction control performed by the technical customer to solve these problems. The purpose of the study is to develop a methodology of risk-based construction control by the developer. The objectives of the research include identification, analysis and calculation of risks in the course of construction control.

Materials and methods. In this article, methods of systemic and morphological analysis are used to identify risks; standards of the system of indicators applied to the product quality in construction are used to classify defects. Risks are calculated using risk management standards and provisions of the theory of probability, namely, Bayes’ theorem.

Results. This article has an overview of application of risk management in construction; it substantiates the relevance of its implementation by the technical customer within the framework of the construction control system. The article identifies the main risks of construction control and suggests a method for calculating them using Bayes’ theorem. Methods of calculating the a posteriori probability of injury in the event of a violation of occupational health and safety rules are determined. In the article, the authors present a classification of defects of monolithic railway structures. The article provides sample classifications of defects of monolithic reinforced concrete structures. The method of calculating the risk of damage caused by a defect in a building structure is determined, which allows assessing the degree of the defect hazard. The method of calculating the a posteriori probability of adverse events in the course of detecting defects in building structures is determined.

Conclusions. In the article, the authors present a methodology for identifying risks in the course of construction control. It encompasses the calculation of a posteriori probabilities of adverse events using three a priori indicators: the frequency of hazards, the frequency of damage, the frequency of hazards that cause damage. The prospects of further research are addressed in the conclusion section of the article.
Protecting the interests of a retail investor i n the United States, China and Russia: the example of brokerage
Authors: Biktashev Ainur A.
Published: March 2022

The main objectives in regulating brokerage activities are to ensure the interests of brokers clients while minimizing the regulatory burden. At the moment, in connection with the flow of households assets to the securities market, the Bank of Russia is actively developing direct tools to protect the interests of investors, including the mechanism for qualifying investors. However, its effectiveness is questioned by the expert and professional community. To assess the results of the use of direct and indirect regulatory instruments aimed at protecting retail investors, a comparative analysis of the regulatory policy in this area in countries with the most developed financial markets was carried out. Based on the results of the analysis of regulation in the United States and China, it was established that they used tools of both direct and indirect regulatory impact. Despite the differ-ences in regulation in both cases, the emphasis in regulation is placed on indirect measures of influence. Direct bans on access to financial instruments for certain categories of investors in the countries under consideration are not applied. It was also noted that despite applying certain measures in Russia, similar to the indirect regulation in the United States and China, their implementation is often sufficient, which reduces their effectiveness.