Digital Commons Network^™

Green And Blue Water Footprints Of Major Crops In The Wami/Ruvu Basin, Tanzania: Implications For Water Scarcity And Sustainability, Benson Hm Lazaro, Martine M. Hagai, Rubhera Ram Mato

Tanzania Journal of Science

Accurate estimation of the blue and green water requirements of the various crops cultivated in a water basin is essential for planning specific plant/crop irrigation schedules. In this study, the crop water requirements of the major crops grown in the Wami/Ruvu basin were determined using the FAO-CROPWAT model based on meteorological parameters: monthly maximum and minimum temperature, wind speed, mean relative humidity, sunshine hours, rainfall data, and effective rainfall for 23 hydro-meteorological stations distributed in the study area. The studied crops are rice, maize, beans, tomatoes, and sugarcane. The crop reference evapotranspiration (ETo) and actual evapotranspiration (ETc) for each crop …

Modelling And Mapping Of Forest Biodiversity Indicators Using Sentinel-2 And Planetscope Remotely Sensed Data, Diana L. Tesha, Ernest W. Mauya, Sami D. Madundo

Tanzania Journal of Science

Tropical montane forests harbour exceptionally high biodiversity yet face severe threats from human activities. Assessing forest biodiversity over large areas is crucial yet extremely challenging. Remote sensing provides an efficient monitoring solution, but few studies have focused on Tanzania's diverse, montane forests. We collected field data on tree species composition within 159 plots across montane forests in Tanzania's West Usambara region. We calculated species richness, evenness, and Shannon diversity index as indicators of tree diversity. Using Sentinel-2 and PlanetScope satellite imagery, we derived spectral, textural, and vegetation index predictors to model these indices via generalized additive models and extreme gradient …

Characterizing Brain And Skull Mechanics In The Minipig Using Magnetic Resonance Elastography, Shuaihu Wang

McKelvey School of Engineering Graduate Student Theses & Dissertations

Computational models and simulation are important tools to investigate the mechanisms underlying traumatic brain injury (TBI); their accuracy depends strongly on accurate model parameters, including the mechanical properties of the brain and its interactions with the skull. However, most existing TBI modeling studies are performed using material properties derived from animal tissue obtained after death. Magnetic resonance elastography (MRE) provides a non-invasive method for estimating the mechanical properties of soft tissue. The overall objective of this thesis is to characterize the biomechanical properties of brain tissue and brain-skull interface in the minipig by using MRE. This was achieved through pursuit …

Inference For Time Series In Change Points And Statistical Learning, Jiaqi Li

Arts & Sciences Graduate Student Theses and Dissertations

This study aims to develop a comprehensive framework for inference theory in time series, with a focus on change-point detection and online learning. First, we introduce an $\ell^2$-based inference approach for multiple change-point detection in high-dimensional time series, which targets dense or spatially clustered signals by a novel Two-Way MOSUM (moving sum) test statistic. We derive the limiting distribution of this $\ell^2$-aggregated statistic by extending the high-dimensional Gaussian approximation to non-stationary spatial-temporal processes. Simulation exhibits promising performance of our test in detecting non-sparse weak signals, and the application to COVID-19 analysis shows the real-world relevance of our method. Next, we …

Essays On Industrial Organization, Hayley Wabiszewski

Arts & Sciences Graduate Student Theses and Dissertations

Big pharma is increasingly using acquisitions to fill their R&D pipelines and the proliferation of the biotechnology industry has created a thick market of innovative target startups. This dissertation analyzes the dynamic equilibrium effects of biotech startup acquisitions by big pharma on drug innovation and entry. Using a novel dataset on 175 acquired startups from 2000 - 2018, I document several new facts regarding the R&D outcomes of acquired drug projects and entry behavior of startups in markets where acquisitions occur. Motivated by this evidence, I build a dynamic oligopoly model of the pharmaceutical industry featuring big firms and startups …

Who Should You Learn From? Theory And Evidence From The Videogame Industry, Tatenda Marume Geofrey Pasipanodya

Olin Business School Graduate Student Theses and Dissertations

Knowledge spillovers can be a major driver of performance for those who successfully absorb them. This dissertation studies potential spillover recipients and characterizes how they may best benefit from the knowledge generated and possessed by their peers. Across three interconnected chapters, I examine whether the choice of peer whose spillovers a would-be recipient draws from affects the recipient’s outcomes. My pursuit is guided by the overarching question: who should knowledge seekers target as ideal sources of new knowledge? I focus my investigation on the extent of a source’s knowledge relative to the focal recipient – what I term knowledge distance …

Moderating Effect Of Secondary Victimization On The Relationship Between Resilience And Sexual Assault Coping Self-Efficacy, Jamie Layton

Clinical Psychology Dissertations

Sexual assault is a prevalent public health concern that effects thousands of people every year. How each of these individuals responds is different. There are multiple factors that can impact someone’s response to sexual assault, one of which is resilience, and another is secondary victimization. Legal advocacy programs can be used to help reduce secondary victimization and increase sexual assault coping self-efficacy, while controlling for age and race. This dissertation examines the way that secondary victimization moderates the relationship between resilience and sexual assault coping self-efficacy. Participants were at least 18 years old, a cisgender woman, English speaking, and a …

Outcomes Of Drug-Eluting Stents In Comparison To Bare Metal Stents In Cancer Patients With Percutaneous Coronary Intervention: A Systematic Review And Meta-Analysis, Muhammad Siddiqui, Eric Warner, Joey Junarta, Parker O’Neill, David Signarovitz, Eyad Kanawati, Mohammed Murtaza, David Fischman

Division of Cardiology Faculty Papers

Background: Studies have demonstrated poor prognosis in cancer patients who undergo percutaneous coronary intervention (PCI) for coronary artery disease (CAD). Cancer patients receiving PCI are at increased risk of in-stent thrombosis, bleeding, hospital readmissions, and cardiovascular and noncardiovascular mortality when compared to patients without cancer. It is unclear if the poor outcomes in cancer patients are related to the stent type utilized for PCI. This meta-analysis attempts to identify differences in efficacy and safety outcomes when comparing drug-eluting stents (DESs) with bare metal stents (BMSs) in cancer patients.

Methods: This meta-analysis is reported according to the Preferred Reporting Items for …

Improving Technology For Producing Complex Fertilizer From Low-Grade Phosphorites Of The Central Kyzylkum, A.Zh. Allamuratova, A.U. Erkaev, A.M. Reimov, Saparbay Kazakhbaev, Dilshodbek Kurbiyazov

Chemical Technology, Control and Management

The methods of nitric acid processing of phosphate raw materials are analyzed. A technology has been developed for the nitric acid processing of phosphate raw materials into nitrogen-phosphorus fertilizer with the implementation of the process in a condensed pulp by adding sulfuric acid. A technology for producing complex fertilizers with a wide range of N:P₂O₅:K₂O ratios with improved physico-chemical parameters due to the introduction of various potassium salts into the process is proposed.

Results Of Experimental Study Of Solar Collector Efficiency, Shakhnoza Sultanova, Ajargul Mambetsheripova, Jasur Safarov

Chemical Technology, Control and Management

The article considers the influence of ambient temperature on the drying efficiency depending on the incident solar radiation, changes in the average temperature of the absorber plate depending on the absorbed power, as well as the thermal efficiency of the collector at significant values of coolant flow.

Features Of Magnetoelastic Converters Of Mechanical Quantities Of Transformer Type, Sulton Amirov, Kamila Jurayeva

Chemical Technology, Control and Management

The article discusses the features of a magnetoelastic transformer type transducer. In magnetoelastic transformer-type transducers, mutual inductance is assumed as a variable value, which is a function of the value of the applied mechanical force. Hence, the transformation coefficients of such converters are also variable. There are also choke type converters in which a change in the magnetic permeability of the magnetic circuit leads to a change in the total electrical resistance of the choke. For further research, transformer-type converters were selected, which make it possible to widely implement techniques for improving basic characteristics.

Dynamic Characteristics Of Magnetoelectric Linear Actuators Of Control Systems, Мakhmudjon Muxamedovich Аbdullayev, Rasul Ernazar Ogli Abdiev

Chemical Technology, Control and Management

This paper presents the results of studies carried out on magnetoelectric drives that carry out linear movement, models of drives are built and, on their basis, studies of the main indicators associated with the movement of a linear armature are carried out, such as: speed of movement, acceleration, current values, voltage and traction force of the armature. Also presented are the results of a study of magnetoelectric linear motion drives based on an analysis of graphs of their dynamic characteristics.

Algorithms For Structural Synthesis Of Control Systems For Dynamic Objects Under Conditions Of Unmeasurable Disturbances, Husan Zakirovich Igamberdiev, Uktam Farkhodovich Mamirov, Bunyod Mamurjon Ugli Buronov

Chemical Technology, Control and Management

The paper talks about ways to use inverse dynamic models to structure a control system for moving objects when disturbances are not measured. To solve the main problems that arise when implementing the inverse dynamic model method, methods for synthesizing inverse systems with given dynamic characteristics are used. The solution to this problem is obtained based on the theory that dynamic observers are invariant to unmeasured input influences. We broke down the matrix operator on the right into elementary orthogonal rotation matrices and on the left into permutation matrices to get a stable answer to the equation of the current …

Artificial Neural Network Based Grain Moisture Measuring Device, Erkin Eljaev, Shohrux Nurali O‘G‘Li Narzullayev, Elyor Faxriddinovich Khudoyberdiev

Chemical Technology, Control and Management

To date, the intellectualization of solving technical issues in managing, controlling, and measuring technological processes in all branches of industrial production is considered an urgent task. In this regard, a class of intelligent devices and sensors has emerged. Intelligent devices and sensors differ from their analog counterparts in that they have functions such as automatic adjustment of the measurement range, self-calibration, data processing, and decision-making. The article discusses the development of intelligent measuring instruments based on a capacitive transducer for measuring the moisture content of grain and grain products.

Relationships Among Crisis Leadership, Innovation Capability, Implementation Of Business Continuity Management, And Sustainable Performance In The Covid-19 Pandemic, Daniel Kurniawan, Damelina Tambunan, Grace Citra Dewi

The South East Asian Journal of Management

Research Aims: This study explores the dynamics between crisis leadership (CLE) and sustainable performance (SP) during the COVID-19 pandemic, investigating the mediating roles of innovation capability (IC) and business continuity management (BCM).

Design/Methodology/Approach: Utilising questionnaires from 209 respondents and employing quantitative approaches, this research examines the connections between CLE, IC, BCM, and SP, employing PLS-SEM for analysis.

Research Findings: CLE significantly influences both IC and BCM, while IC positively impacts SP. This study also highlights the moderating roles of IC and BCM in enhancing organisational resilience.

Theoretical Contribution/Originality: The study unveils the substantial influence of CLE on IC and BCM, …

Assessing The Cooling/Lubricating Agencies For Sustainable Alternatives During Machining Of Nimonic 80: Economic And Environmental Impacts, Mayur A. Makhesana, Harsh Vesuwala, Kaushik M. Patel, Ana Vafadar, Murat Sarikaya, Navneet Khanna

Research outputs 2022 to 2026

Developing sustainable manufacturing methods that balance environmental and economic aspects is challenging. A comprehensive analysis of the economics of machining and carbon emissions is essential to encourage adopting sustainable practices. This work presents the machinability and comparative sustainability analysis of Nimonic 80 superalloy when it is machined utilizing a novel, environmentally friendly vegetable oil-based hybrid nanofluid-minimum quantity lubrication (MQL) and liquid carbon dioxide (LCO2) technique. The main objective is to comprehend the efficacy of the proposed approach on tool life, surface roughness, power consumption, total machining costs, and carbon emissions. Compared to other machining conditions, the use of hybrid nanofluid-MQL …

Advancing Mobile Sensing In Dynamic Environments, Weichen Wang

Dartmouth College Ph.D Dissertations

This thesis presents a comprehensive exploration of enhancing mobile sensing capabilities to address various aspects of human behavior, mental health, personality, social functioning and beyond. We redesign the StudentLife app to improve its sensing efficiency and dependability, enabling support for multi-year-long studies. By adopting new app design, this study addresses the technical challenges of continuous sensing and enhances system robustness. The work is organized into several key studies that collectively aim to expand the scope of mobile sensing in diverse and complex environments.

The first study broadens the scope of mobile sensing to assess personality traits, exploring the potential of …

Relationship Of Stress And Other Factors With Emotional Eating Among Adolescents In Depok, Muthia Syifa Rahmadina, Asih Setiarini

Indonesian Journal of Public Health Nutrition (IJPHN)

Emotional eating is an overeating behavior as a coping mechanism for negative emotions that emerges in adolescence. Emotional eating causes obesity, eating disorders, and non-communicable diseases. This study aims to determine the relationship between stress, body image, peer influence, parental rearing styles, social media use, sex, sleep quality, and emotion regulation with emotional eating among adolescents at senior high school in Depok. This cross-sectional quantitative study was conducted online in March 2022. The samples were grade X and XI students from senior high school in Depok who were chosen by using purposive sampling techniques (n=174). Chi X2 test and Mann …

Determinant Factors Of The Incidence Of Low Birth Weight In Central Java Province: Analysis Of 2018 Basic Health Research Data, Desi Irawati, Ratu Ayu Dewi Sartika, Diah Mulyawati Utari, Fadila Wirawan

Indonesian Journal of Public Health Nutrition (IJPHN)

Low birth weight (LBW) is a global public health issue with significant short and long-term consequences for individuals and societies. This study aims to examine the most dominant risk and variations in the proportion of LBW based on fetal factors, maternal and obstetric factors, and sociodemographic factors among toddlers in Central Java Province, utilizing the 2018 Basic Health Research (RISKESDAS) data. The study used a cross-sectional study conducted on 4255 samples, utilizing univariate, bivariate (chi-square), and multivariate analysis (multiple logistic regression). Central Java has the 3rd highest number of LBW cases in Indonesia with a prevalence of 6.1%. However, univariate …

Sugar-Sweetened Beverages Consumption Based On Individual And Environmental Factors Among The Faculty Of Public Health Universitas Indonesia’S Students In 2023, Safira Diva Aranis, Wahyu Kurnia Yusrin Putra, Asih Setiarini, Teguh Jati Prasetyo

Indonesian Journal of Public Health Nutrition (IJPHN)

Sugar-sweetened beverages (SSB) are beverages that contain added sugars. Excessive consumption of SSB can have an impact on health. Some of the effects caused by SSB include obesity, fatty liver, type II diabetes, hypertension, heart disease, nutritional deficiencies, and dental caries. This research aims to determine the differences in the proportion of SSB consumption based on individual and environmental factors among students of the Faculty of Public Health UI (FPH UI) in 2023. This study uses a cross sectional design with a sample size of 194 individuals. The researcher collected data including respondent’s identities, habits of reading food labels, knowledge …

The Differences In Maternal Clean And Healthy Living Behavior In The Incidence Of Stunting In Yogyakarta, Shafa Ramadhita, Anindhita Syahbi Syagata, Nor Eka Noviani

Indonesian Journal of Public Health Nutrition (IJPHN)

An indirect cause of stunting is maternal behavior. Moreover, good nutritional knowledge relates to good nutritional behaviors. Maternal clean and Healthy Living Behavior (PHBS) in daily life can reduce the risk of infectious diseases and be role models for children in implementing their future health behavior. The study aims to investigate the differences in PHBS of mothers in the incidence of stunting ages 24-59 months in the Minggir Primary Health Center working area. The cross-sectional approach of this research was conducted from March to April 2023. The subjects of this study were 69 respondents selected by cluster random sampling. The …

Factors Associated With Wasting In Toddlers Aged 6 – 59 Months At Cimpaeun Village, Depok City, West Java, Indonesia In 2023, Early Vici Azmia, Triyanti Triyanti

Indonesian Journal of Public Health Nutrition (IJPHN)

The prevalence of wasting under five in Indonesia in 2022 is 7.7%; according to WHO, this wasting problem is a serious public health problem. Wasting is a nutritional problem in toddlers that has an impact on morbidity and mortality. The research objective was to determine the factors associated with wasting in toddlers aged 6–59 months in Cimpaeun Village in 2023. The dependent variable is wasting, and the independent variables are birth weight, history of fever, diarrhea, acute respiratory infection, energy intake, carbohydrate intake, protein intake, fat intake, mother’s age, pregnancy, mother’s education level, mother’s nutritional knowledge, and family income. This …

The Relationship Of Energy And Nutrient Intake From Eating Out And Eating At Home On Blood Hemoglobin Levels In Adolescents, Adinda Aisyah Putri, Khoirul Anwar

Indonesian Journal of Public Health Nutrition (IJPHN)

Eating out of home is a common practice in adolescents. The high frequency of eating out of home characterized by higher intakes of energy, fats, sugar, and sodium. anemia, especially iron deficiency anemia which is characterized by blood hemoglobin levels, is still a nutritional problem in Indonesia in adolescents which can have an impact on adolescent health. The aim of this study was to determine the relationship between eating out and hemoglobin levels in adolescents in Jakarta. This research is an observational study with a cross sectional research design. The subjects of this research were female students aged 15-17 years. …

Smokejumper Obituary: Jackson, Harley Sterling (Redmond 1986), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

The Variety Of Mechanosensitive Ion Channels In R/Etinal Neurons

Faculty, Staff and Students Publications

Alterations in intraocular and external pressure critically involve the pathogenesis of glaucoma, traumatic retinal injury (TRI), and other retinal disorders, and retinal neurons have been reported to express multiple mechanical-sensitive channels (MSCs) in recent decades. However, the role of MSCs in visual functions and pressure-related retinal conditions has been unclear. This review will focus on the variety and functional significance of the MSCs permeable to K+, Na+, and Ca2+, primarily including the big potassium channel (BK); the two-pore domain potassium channels TRAAK and TREK; Piezo; the epithelial sodium channel (ENaC); and the transient receptor potential channels vanilloid TRPV1, TRPV2, and …

Perbedaan Pembelajaran Menggunakan Media Audiovisual Dan Alat Peraga Terhadap Hasil Belajar Tari Yosim Pancar Pada Siswa Kelas Xi, Bayu Satriawan, Wida Rahayuningtyas

Journal of Innovation and Teacher Professionalism

Cultural arts learning at SMA Negeri 1 Kertosono uses two media, namely audiovisual and props with the material studied, namely Yosim henna dance. The use of audiovisual media and props are two types of media that are very different and have different capian as well. This study aims to compare two different classes (XI-8 and XI-10) using different learning media, namely audiovisual and teaching aids, but the material presented in both classes is the same. This research is quantitative research using a comparative approach. The research design used a static-group comparision design. The results proved that there were differences in …

Perancangan Board Game The Journey Of Knowledge Sebagai Media Bantu Pembelajaran Sejarah, Dai Ahmad Zaelany, Mutiah Nur Azizah, Nafisah Gadis Angkasadaiana, Rifqi Muhammad Nuriansyah, Ayung Candra Padmasari, Rifda Falsa Salsabila

Journal of Innovation and Teacher Professionalism

"The Journey of Knowledge" is an educational board game that combines adventure and scientific learning. With a vintage brown theme, the game offers a fun gaming experience and invites players to explore the world of knowledge from various fields with the guidance of famous scientists as main characters. The acrylic character design, sturdy 40×40 board game, and vintage-style logo give the game an attractive, classic touch. This research uses a mixed-methods method using a linear strategy stage, which contains 4 stages, namely, data collection, data analysis, design, and prototype. The design stage has four stages, consisting of concept, sketch, finishing, …

Pengembangan Learning Management Platform Berbasis Web Materi Tata Surya Kelas Vii Smp Sebagai Upaya Keberpihakan Pada Peserta Didik, Lady El Rida, Deny Setiawan

Journal of Innovation and Teacher Professionalism

The purpose of this research was to develop the final product of the Web-based Learning Management Platform for Solar System Materials for seventh grade students as an effort to favor learning to students by paying attention to students' learning styles. There were three sub topics, this product has a main page, main menu, apperception section, learning topics, integrated LKPD Live worksheets, teaching materials with media content such as images and videos, there were also interesting quizzes, reflection sheets, and contained creator information. Web-based Learning Management Platform for Solar System materials can be used online using any device and anywhere. The …

Penerapan Scaffolding Untuk Meningkatkan Keterampilan Peserta Didik Pada Pembelajaran Seni Tari Di Kelas Viii, Andhika Khairunnisa, Tri Wahyuningtyas

Journal of Innovation and Teacher Professionalism

This research aims to strengthen understanding of the application of Scaffolding in dance learning by critically observing the learning methods used in the zone of proximal development of students, especially in class 8I of SMPN 4 Malang. Apart from that, it also critically analyzes the levels in the application of scaffolding. This research uses a qualitative approach. The methods used to compile this article are literacy studies and field observations. Literacy studies are carried out by analyzing detailed information from several literacy and documentation sources. Field observations were carried out by observing in depth the symbols, programs, activities, or events …

Strategi Scaffholding Pada Prinsip Zone Of Proximal Development Dalam Materi Seni Patung Pada Kelas Ix, Hafidh Muhammad Risaaldi, Ika Wahyu Widyawati

Journal of Innovation and Teacher Professionalism

This research aims to apply a scaffolding strategy based on the Zone of Proximal Development (ZPD) principle in sculpture material in class IX-A at SMPN 12 Malang City, using qualitative research methods with a case study research design. Data collection techniques are carried out through observation and documentation. Data were analyzed using qualitative data analysis techniques. The research results show that the application of scaffolding strategies based on the ZPD principle in sculpture material in class IX-A at SMPN 12 Malang can improve student learning outcomes. This is evidenced by an increase in student pretest and posttest scores, as well …