bluuebunny/crossref_metadata_2025_split huggingface dataset:
The state of cage culture in Lake Victoria: A focus on sustainability, rural economic empowerment, and food security
Authors: Orina Paul , Ogello Erick , Kembenya Elijah , Muthoni Cecilia , Musa Safina , Ombwa Veronica , Mwainge Venny , Abwao Jacob , Ondiba Robert , Kengere John , Karoza Stephano 
Published: September 2021

Abstract
Capture fisheries and aquaculture have remained important sources of food, nutrition, income and livelihoods to millions globally, with annual per capita consumption of fish in developing countries having increased from 5.2 kg in 1961 to 18.8 kg in 2013. On the contrary, low income food-deficit countries annual fish per capita consumption rose from 3.5 to 7.6 kg against 26.8 kg among industrialized countries. Increased demand for animal protein and declining capture fisheries has seen aquaculture grow rapidly than any other food production sector over the past three decades. Rapid global aquaculture growth is directly related to levels of technological advancement, adoption and adaption prompting aquaculture transition from semi-intensive to intensive and super intensive production systems among developing and developed countries. In light of the aquatic environment economic potential, cage culture in Lake Victoria is fast gaining prominence in aquaculture production contribution. This began with trials by Kenya Marine and Fisheries Research Institute and Uganda’s National Fisheries Resource Research Institute and later by private investors at Dunga and Obenge beaches of Kenya, Source of the Nile in Uganda and Bulamba Beach Management Units in Bunda District of Tanzania. However, only Kenya has so far documented cage culture development recording 3,696 cages across the five riparian counties with an estimated production capacity of 3,180 MT valued at Kshs 955.4 Million (9.6 million USD), created over 500 jobs directly and indirectly created income opportunities for over 4,000 people. The sub-sector’s value chain, its supportive value chains and associated enterprises are rapidly expanding thus creating jobs, enhancing incomes and ensuring food security in rural and urban areas. As cage culture commercialization takes root, there is urgent need to address issues such as introduction of alien species, diseases, marine parks and maximum carrying capacity among other aspects. This will require trans-boundary policy to ensure sustainable utilization of the lake as a common resource.
Preparation of Fe3O4@SiO2–ZnO catalyst and its catalytic synthesis of rosin glycol ester
Authors: Li Yaya , Yu Shitao , Zhang Huimin , Zhang Jiuming 
Published: September 2021

Abstract
In order to solve the problems of low recovery, low availability, and high cost in the synthesis of rosin glycol ester, a series of supported ZnO magnetic catalysts were prepared with Fe3O4 as the magnetic center, and their structures and compositions were characterized by TEM, XRD, and XPS. Through screening, the results show that Fe3O4@SiO2–ZnO has the best catalytic effect, far better than other catalysts, and has good stability. At the same time, the effects of zinc source and its load and different reaction conditions on the synthesis of rosin glycol ester were also investigated. The results showed that: When zinc chloride was used as zinc source, theoretical loading of zinc source was 0.45 g, reaction temperature was 270°C, reaction time was 5 h, and catalyst dosage was 0.2 g, the esterification rate of rosin-glyceryl ester was 87.2% and acid value was 26.5 mg KOH g−1.
A new method for plugging the dominant seepage channel after polymer flooding and its mechanism: Fracturing–seepage–plugging
Authors: Wang Fengjiao , Wang Xu , Liu Yikun , Deng Qingjun , Zhang Dong 
Published: September 2021

AbstractAfter polymer flooding, a low-resistant dominant seepage channel forms at the bottom of the high-permeability reservoir, which is extremely disadvantageous for further enhanced oil recovery. In this study, we proposed a new method to plug the dominant seepage channel after polymer flooding, through fracturing–seepage–plugging using a solid-free plugging agent, which can achieve deeper and further regional plugging. This method involved dissolving the crosslinking agent and stabilizer in the water-based fracturing fluid (hereinafter referred to as the fracturing plugging agent) and transporting it to the target reservoir through hydraulic fractures. The fracturing plugging agent percolated into the deep part of the reservoir under the action of fracture closure pressure and gelled with the residual polymer in the formation to achieve deep regional plugging of the advantageous channel. To study the percolation law of fracturing plugging agent in the dominant channel, high-pressure displacement experiments were conducted using natural cores under different permeability and concentration conditions of the fracturing plugging agent. The results showed that the percolation rate of the fracturing plugging agent was almost linearly related to reservoir permeability. Due to the formation of micro-fractures and crosslinking reactions, the percolation rate first increased and then decreased to a stable state. After a certain period, the pores were blocked, resulting in a sharp decrease in the percolation rate and then decayed. In addition, the higher the concentration of fracturing plugging agent, the better the core plugging performance. Moreover, when the concentration of fracturing plugging agent injected into the core exceeded 3,000 mg/L, the core permeability increased, and the breakthrough pressure evidently increased three to four times. On the basis of this, rheometer tests, scanning electron microscopy (SEM) observations, and mercury intrusion tests were performed to evaluate gelation performance, shear effect, and pore retention morphology of the crosslinking system made by mixing the injected plugging agent and residual polymer in the reservoir. The results showed that the shear action could reduce the gelling property, and the concentration of fracturing plugging agent should be >3,000 mg/L to meet the requirements of gelling. Furthermore, the viscosity of the crosslinking system reached the peak value at approximately 72 h, forming a network space structure of layered superposition, thereby increasing viscosity by 40–50 times. Finally, SEM images revealed that after the fracture plugging agent was injected into the core, the micelles were mostly concentrated in the front and middle sections. The average pore radius of the core decreased by 8.620 μm, and the average porosity decreased by 54.85%.
Optimization of thermal and hydrophobic properties of GO-doped epoxy nanocomposite coatings
Authors: Liu Xintian , Chen Long , Liu Zhanqiang , Song Qinghua , Liu Chaozong 
Published: September 2021

Abstract
Corrosion and icing are common problems in aerospace and wind power fields. In order to improve the thermal and hydrophobic properties of epoxy-based anticorrosive coatings and expand the application in various working environments, the modified graphene oxide (GO) was introduced into the epoxy-based anticorrosive coatings to prepare GO/polyvinyl butyral/epoxy resin nanocomposite coatings. The preparation process of nanocomposite coating was optimized by response surface method. Through heat transfer experiment and contact angle experiment, the fitting model of influence factors and response values were established, and the response surface was optimized with heating rate and contact angle as response value. It is reported that the heating rate of the optimum parameter is 0.218°C/s, and the contact angle is 85.757°. The maximum error of the optimized response values verified by the coating experiment is 8.58%, which indicates that the reliability of the RSM optimization result is high. The optimization results of the preparation process parameters can meet the requirements of the nanocomposite coatings with high thermal and hydrophobic properties.
DESENVOLVIMENTO E IMPLEMENTAÇÃO DE FERRAMENTA PARA ECONOMIA DE ENERGIA ELÉTRICA: ESTUDO DE CASOS
Authors: Junior Geraldo Motta Azevedo , Da Silva Antônio José Dias , Pinheiro André Luis Da Silva , De Oliveira Antonio Marcos Soares 
Published: September 2021

RESUMO
O presente artigo aborda a Tarifa Branca, uma nova modalidade tarifária desenvolvida pela Agência Nacional de Energia Elétrica (ANEEL) para consumidores em baixa tensão, também chamados de grupo B, frente a Tarifa Convencional. A função dessa nova modalidade é sinalizar a variação do valor da energia conforme o dia e horário do consumo, sendo essa adesão dependente da média mensal consumida e determinada pelos órgãos reguladores, na tentativa de reduzir o consumo de energia. Para auxiliar esses consumidores foi desenvolvida uma ferramenta, utilizando o Excel, de fácil compreensão e adesão, com o intuito de colaborar na análise dos perfis de cada consumidor de acordo com seus consumos. Com a ajuda desta planilha desenvolvida, foram realizados o estudo de casos, simulando o consumo de duas famílias residenciais e dois pequenos comércios. A ferramenta demonstrou que cerca de 50% dos casos estudados poderiam ter economizado em gastos com energia elétrica, caso tivessem optado pela nova modalidade.
Palavras-chave: Setor Elétrico. Tarifa Branca. Modalidade Tarifária.
DESENVOLVIMENTO E IMPLEMENTAÇÃO DE SISTEMA ELETRÔNICO DE ALERTA DE CHUVAS PARA ÁREAS DE RISCO
Authors: Junior Geraldo Motta Azevedo , Da Silva Antônio José Dias , Pinheiro André Luis Da Silva , De Oliveira Vinícius Coutinho , Macena Eliel Da Silva 
Published: September 2021

RESUMO
Evitar acidentes, garantir o bem-estar e salvar vidas, tem sido uns dos principais desafios da engenharia moderna. O objetivo deste trabalho foi a criação e implementação de um modelo de pluviômetro, de baixo custo, utilizando um modelo digital, artesanal com comparadores lógicos programáveis e um circuito eletrônico de autoria própria, que associado a outros instrumentos de sinalização e alarme, venha colaborar na prevenção de acidentes oriundos de altos índices pluviométricos, em comunidades de baixa renda. Após montado e testado verificou-se que o protótipo atendeu satisfatoriamente a que se propôs.
The Collaborative Folktale Project of a Family: The Synoptic Critical Edition of a 19th-Century Hungarian Folktale and Riddle Collection
Authors: Gulyás Judit 
Published: September 2021

Abstract
In 1862, a volume of tales was published under the title Eredeti népmesék (‘Original Folktales’) by László Arany, the then 18-year-old son of János Arany, the national poet of the period. Eredeti népmesék has been classified by folkloristics as the first canonical folktale collection in Hungary. Besides scholarly recognition, it has also become one of the most popular folktale collections of the past one and a half century, as selected tales from this collection have been continuously republished in schoolbooks and anthologies and have become a regular element in children's literature. After the Second World War, in the basement of the main building of the Hungarian Academy of Sciences in Budapest, a huge pile of manuscripts had been found in very poor condition, consisting of, among others, various 19th-century folklore collections. In the 1960s, it was discovered that a part of these manuscripts was identical to the texts published in Eredeti népmesék. The vast majority of the manuscript tales had been recorded by the family members of János Arany, namely, his young daughter (Julianna Arany) and his wife (Julianna Ercsey), in the period between 1850 and 1862, presumably for family use. A comparison of the manuscript texts with their published versions revealed that in the editing process, László Arany significantly reworked the texts of the manuscript tales, implementing significant stylistic modifications. This article reports on the research project underlying the synoptic critical edition of the manuscript and published tales of the Arany family (2018). In the first part, the author presents the manuscript and published tales and their place in the history of Hungarian folkloristics, followed by an introduction of the members of the Arany family with an emphasis on their socio-cultural background, and concluding with a discussion of the roles they played in this collaborative folktale project as collectors, editors, copy editors, and theoreticians. The second part is a summary of the textological concept and techniques applied in the course of the development of the synoptic critical edition.
Physical activity influences the mobile phone addiction among Chinese undergraduates: The moderating effect of exercise type
Authors: Yang Guan , Li Yuexiang , Liu Shijie , Liu Chuannan , Jia Chen , Wang Songtao 
Published: September 2021

AbstractBackground and aimsMobile phone addiction (MPA) has recently aroused much attention due to its high incidence and considerable health hazards. Although some existing studies have documented that physical activity is negatively associated with MPA, it is little known about the potential effects underlying this relation. The aim of this study was to investigate the relationship between physical activity and MPA among undergraduates in China, and to further examine the moderating effect of exercise type in the relation between them.MethodsBy the quota sampling, a total of 650 participants engaged in this survey and completed relevant measurements including physical activity rating scale-3 (PARS-3) and mobile phone addiction tendency scale (MPATS).ResultsGender (β= 0.271,P< 0.05) and major (β= −0.169,P< 0.05) could significantly predict MPA, respectively, and physical activity was an imperative protective factor to decrease MPA (β= −0.266,P< 0.001). While the physical activity level enhanced from none exercise to medium exercise, an optimum dose-response relationship would emerge between physical activity and MPA (F(3,604)= 4.799,P< 0.01). Most important, the relation between physical activity and MPA can be moderated by exercise type. Especially in terms of aerobic endurance exercise, the higher level of physical activity the undergraduates performed, the lower degree of MPA would be suffered by them (β= −0.266,P< 0.001).DiscussionThese findings could be conducive to better understand the positive and potential effects of physical activity on the intervention in MPA, and served as a persuasive evidence that as for university students, actively engaging in aerobic endurance exercise with the medium activity level would be a practicable exercise strategy to deal with MPA in daily lifestyle behavior.
A scoping review of hard systems and tools that restrict money and cash for gambling
Authors: Rodda Simone N 
Published: September 2021

Abstract

Background
Gamblers engage in a range of “soft” financial options to limit access to money or cash for gambling (e.g., family looks after cash). Such barriers are easily overturned, resulting in a demand for financial systems and tools that offer “hard” restrictions on access to money and cash in a gambling context. The aim of this scoping review was to determine the attitudes and preferences of gamblers and their families on systems or tools to restrict access to money and cash, as well as the effectiveness of systems and tools that can be used to accomplish that goal.

Methods
A systematic search of articles related to financial restrictions and gambling was conducted. Eligibility criteria included samples of gamblers or affected others and interventions targeted at money or cash restrictions in a gambling context. Soft financial barriers such as family involvement were excluded, as were limit-setting systems which focused on gambling expenditure in gambling venues.

Results
Nine studies met the eligibility criteria, with three focused on financial systems (e.g., ban on credit betting) and six focused on removal of cash machines from gambling venues. The included literature was generally of low quality, with just two pre-post studies and seven cross-sectional or qualitative ones.

Conclusions
The included studies provided strong support for financial mechanisms to support gamblers and their families. Future studies need to involve multiple stakeholders to provide this type of support as well as to evaluate the holistic impact that such hard barriers can have on gambling and gambling-related harms.
The effectiveness of an online intervention in stimulating injury-preventive behaviour in adult novice runners. Results of a randomised controlled trial.
Authors: Kemler Ellen , Cornelissen Maaike , Gouttebarge Vincent 
Published: September 2021

Background: The online intervention Runfitcheck was developed to stimulate injury-preventive behaviour among adult novice runners.
Objective: The objective of this study was to evaluate the effectiveness of Runfitcheck on injury-preventive behaviour among adult novice runners.
Material and methods: A randomised controlled trial was conducted among adult novice runners. The intervention group had access to the Runfitcheck intervention, the control group performed their running activities as usual. One, three, and five months after enrolment, participants reported retrospectively what they had done regarding injury-preventive behaviour (operationalised as (i) using a (personalised) training schedule; (ii) performing strength and technique exercises; and (iii) performing a warm-up routine prior to running). Relative Risks (RR) and 95% Confidence Interval (95%CI) were used to analyse behavioural change.
Results: The intervention group (n=715) searched more often for information about a warm-up routine (RR 1.211; 95%CI 1.080-1.357), added more often strength exercises to their warm-up routine ( RR 1.228; 95%CI 1.092-1.380). The intervention group performed more often running technique exercises compared to the control group (n=696) (RR 1.134; 95%CI 1.015-1.267), but less often strength exercises (RR 0.865 (95%CI 0.752-0.995). Within the group of runners that did not perform any warm-up routine at enrolment (n=272), the intervention group performed a regular warm-up routine more often than the control group (RR 1.461; 95%CI 1.084-1.968) No significant results were found for using a training schedule.
Discussion and conclusion: The online intervention Runfitcheck was effective in stimulating aspects of injury-preventive behaviour in adult novice runners, mostly related to a warm-up routine.
A multipole representation of earthquake source mechanisms
Authors: Yeatts F. Richard 
Published: September 2021

abstract
The static displacement field in an elastic half-space caused by a general, finite disturbance is derived in the form of an infinite series (multipole) expansion. The relationship between this theory and dislocation theory is discussed with the aid of examples. A multipole source model is derived for the strain-step field associated with the nuclear blast HANDLEY set off at the Nevada Test Site on March 26, 1970. The results suggest that there was significant fault movement associated with the detonation.
Seismicity of the mendocino escarpment and the aftershock sequence of June 26, 1968: Ocean bottom seismic measurements
Authors: Nowroozi Ali A. 
Published: September 2021

abstract
Since May 1966, OBS 3, an ocean-bottom geophysical station located 220 km south of the Mendocino fracture zone at a depth of 3903 meters and PTA, a supporting land station at Point Arena, California, have been operating continuously. During a 5-year period OBS 3 recorded over 650 local earthquakes with suboceanic epicenters, about 200 of which were also recorded by PTA. Earthquakes recorded by OBS 3 have clear P, S, and T phases; those recorded by PTA have clear P and S phases but generally do not have clear T phases. The 200 earthquakes recorded by both stations were located on the basis of S —P time intervals at OBS 3 and at PTA. Readings from the Berkeley network of seismographic stations were also used when possible. Most of the submarine earthquakes located are related to the Mendocino and Gorda escarpments. Earthquakes do not occur beyond the intersection of the Mendocino fracture zone and the Gorda Ridge. The entire Gorda Basin is seismically active, implying that it is presently undergoing internal deformation.
In an attempt to confirm a possible subduction zone in the vicinity of the coast and north of the Mendocino fracture zone, five earthquakes were relocated, two of which were probably subcrustal. One earthquake (August 23, 1962) had a focal depth of 59.4 km, which is confirmed by the time intervals of the pP—P and sP—P phases. The second (September 4, 1962) had a depth of 45 km, but because of the earthquake's small magnitude, its depth could not be confirmed. These subcrustal earthquakes do indicate a possible active subduction zone close to the coast north of the Mendocino fracture zone. The submarine aftershock sequence of June 26, 1968 indicates that (1) b = 0.5 ± 0.1 (This is slightly smaller than other b values given for the adjacent continental region.); (2) the magnitude versus the length of the fault for this sequence is approximately similar to that of other recent sequences in California; (3) the composite fault-plane solution for all of the aftershocks is similar to that of the main shock and gives a fault trend of N41°E.
Three-dimensional soil-structure response to earthquakes
Authors: Weaver William , Brandow Gregg E. , Höeg Kaare 
Published: September 2021

abstract
Calculations for the dynamic response of multistory buildings to earthquake accelerations of bedrock should include the effects of the soil and the structural foundation. For this purpose a three-dimensional analytical model is developed, consisting of the following parts. The superstructure is modeled as a tier building (with rigid floor diaphragms, space frame members, bracing, and setbacks); the foundation is approximated by a rigid block in combination with piles (prismatic members with pinned ends), and the soil is idealized by a finite-element mesh (three-dimensional rectangular prisms) with special boundary conditions (viscous damping at lateral boundaries and a rigid boundary at bedrock). This analytical model is incorporated into a computer program, which performs response analyses for specified earthquakes. Sample problems are included to demonstrate the capabilities of both the analytical model and the computer program. The results show that the combination of a three-dimensional analytical model and the presence of underlying soil has important influences on the calculated responses of multistory buildings to earthquakes.
Statistical correlation of observed ground motion with low-rise building damage
Authors: Scholl Roger E. , Farhoomand Iraj 
Published: September 2021

abstract
A statistical study was conducted correlating ground motion with structure damage data from the RULISON underground nuclear explosion gas stimulation experiment. The statistical study first leads to the identification of the ground-motion characterization that best represents the damage potential of ground motion; then to the development of motion-damage relationships for low-rise buildings subjected to ground motion. The motion-damage relationships are derived both for overall damage as well as for the most frequently damaged building components. The overall motion-damage relationships are given in terms of incidence of complaints (complaint ratio), incidence of damage (damage ratio), and damage cost (damage cost factor).