bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perfis de avaliação nas organizações do terceiro setor: implicações diferenciadas na aprendizagem organizacional
Authors: Lopes Mónica 
Published: May 2022

Este artigo explora padrões de representações e práticas de avaliação nas organizações do terceiro setor (OTS) no quadro das relações de accountability. A estratégia de pesquisa assenta na análise interpretativa de entrevistas com 45 atores sociais dos campos da avaliação e do terceiro setor, e na aplicação de um inquérito por questionário a representantes de 575 OTS a operar em Portugal. A análise permite ponderar a implicação e relevância de uma diversidade de variáveis associadas quer ao ambiente interno, quer ao contexto institucional, na configuração das conceções e práticas de avaliação, e aferir sobre as barreiras e fatores potenciadores do papel da avaliação no reforço da missão das organizações. A composição de quatro perfis de avaliação distintos, a partir de procedimentos estatísticos exploratórios, e suas implicações diferenciadas na aprendizagem organizacional, permite lançar pistas importantes para a (re)definição das políticas públicas para o setor.
The Lived Experiences of Beginning Teachers: An Odyssey
Authors: Mendoza Marissa 
Published: May 2022

The attrition rates for beginning teachers have been high and widespread, which oftentimes resulted in a teacher shortage. This qualitative phenomenological study explored the lived experiences of beginning teachers during their first three years in teaching. Specifically, it digs a deeper understanding of the challenges beginning teachers face, such as classroom management, support received, differentiated instruction, and unexpected expectations. An in-depth interview was conducted to ten beginning junior high school teachers from public and private schools within DepEd Puerto Princesa. Member checking was done to validate the accuracy of the data and to establish credibility. The four constructs of credibility, transferability, dependability, and confirmability were considered to substantiate trustworthiness. The study reveals that beginning teachers are mostly challenged by the behavior of the students in classroom management; get the needed support from their administrators, colleagues, students’ parents, and immediate families; find difficulty in differentiating instruction to address learner’s differences; and are overwhelmed by the enormous amount of paperwork, extra-curricular assignments and teaching subjects not in line with their specialization. Likewise, salary, lack of training and orientation, work environment, and workload emerged as minor themes. Thus, beginning teachers’ found their first three years as challenging, overwhelming, shocking, tiring, difficult, stressful, and struggle yet wonderful, exciting, fun, colorful, rewarding, and fulfilling.
Effect of Weed Management Approaches on Weed Density and Weed Control Efficiency in Apple Nursery Plants Grafted on Clonal Rootstock
Authors: Haq Asrar Ul , Ali Angrej , Kumar Amit , Khan F. A. , Mir S. A. , Alie B. A. 
Published: May 2022

Aims: The study aimed to evaluate the influence of different weed management approaches on weed density and weed control efficiency in apple nurseries.
Study Design: The experimental method used in this study was a Randomized Complete Block Design with seven treatments, each replicated three times.
Place and Duration of Study: The experiment was set up at the Experimental Farm, Division of Fruit Science, Faculty of Horticulture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar Campus, Srinagar, Jammu and Kashmir, India during the year 2020.
Methodology: Seven weed management treatments i.e. manual weeding, pendimethalin @ 1 kg a.i. ha-1, pendimethalin @ 1 kg a.i. ha-1 + manual weeding, paddy straw mulch – 6 cm thick, black polyethylene mulch - 200 micron, weed-free and weedy check were tested in apple nursery (Apple cv. Silver) Spur grafted on M-9 T337 was used as plant material for the study. Weed flora, density, dry weight, and weed control efficiency were all observed and recorded.
Results: Among different weed management approaches tested, black polyethylene mulch (200 micron) resulted in the lowest weed density and weed dry weight, and the highest weed control efficiency followed by paddy straw mulch (6 cm thick) and pendimethalin @ 1 kg a.i. ha-1 + manual weeding.
Conclusion: In apple nurseries on clonal rootstock M9-T337, black polyethylene (200 micron) was determined to be the most effective weed control strategy for reducing weed density while increasing overall control efficiency.
Factors Influencing the Uptake of Breast Cancer Screening Services among Women of Reproductive Age: A Case Study of Turbo Sub-county, Kenya
Authors: Maureen Koech J. , Kariuki John G. , Mogere Dominic M. , Magutah Karani , Jeruto Esleen 
Published: May 2022

Aim: To determine the prevalence, socio-demographic, and health system factors influencing the uptake of breast cancer (BC) screening services among women of reproductive age (WRA).
Methods: An analytical cross-sectional research design was used which employed mixed-methods approach. Multi-stage and purposive sampling techniques were used to select the study location and to recruit study participants. A semi-structured questionnaire was administered to WRA participants. A subset of respondents took part in the qualitative study.
Results: The study sample was 317 WRA. The prevalence of uptake of BC screening services was 10.2%. Being employed (OR=5.6, 95% CI: 1.81-17.47) and earning a high income (OR=4.9, 95% CI: 1.22-19.47) increased the likelihood of uptake of BC screening services. The presence of outreach programs (OR=3.8, 95% CI: 0.07-0.97), reduced screening charges (OR=1.1, 95% CI: 2.22-4.30), reduced distance to the health facilities (OR=3.2, 95% CI: 1.07-9.51), and reduced waiting time (OR=3.3, 95% CI: 0.10-0.96) augmented the odds of uptake of BC screening services.
Conclusion: The uptake of BC screening services was low (10.2%). Based on these findings, the government should subsidize screening services for low-income earners and the unemployed. The ministry of health should improve access to BC screening services and reduce waiting period.
Completeness of Health Declaration Reports during COVID-19 Pandemic in Ghana: Evidence from Travellers’ Surveillance Data, 2020
Authors: Akyereko Ernest , Nuamah Hanson Gabriel , Acheampong Gideon Kwarteng , Owusu Isaac , Kuma-Aboagye Patrick , Ameme Donne , Franklin-Asiedu-Bekoe . , Laryea Dennis , Nsiah-Asare Anthony , Agyei Nii Aryeetey , Ashong Mawufemor , Dongdem Anthony , Buabeng Richard , Mpangah Rebecca , Malm Keziah , Kenu Ernest 
Published: May 2022

Introduction: Surveillance data completeness and timeliness is critical for effective outbreak response notably in the advent of increasing of infectious diseases of pandemic proportions. Ghana enhanced screening at Points of Entry by intensifying the usage of health declaration forms in response to the emergence of the global threat of COVID-19. Here, we assess the completeness of health declaration form information submitted by travellers and determine predictors of data completeness and demographic variables as a measure to improve data quality at Points of Entry.
Methods: A retrospective cross-sectional study was employed and involved collection of information (age, sex, date of arrival) from the health declaration forms submitted by travellers between the period of March 7-19, 2020 at Ghana’s International Airport. Flights which harboured travellers infected with COVID-19 virus and exhibited clinical symptoms prior to or within 2 days from the arrival date were included in the analysis. Descriptive analyses were expressed in the form of frequencies and percentages. Association and Regression tests using STATA statistical Package were carried out between travellers’ age, sex, nationality, arrival date and form completeness.
Results: A total of 2,374 travellers from 7 flights were included in the study for the period under review. Travellers provided 82.9% and 80.6% complete basic contact and critical information respectively with significant associations between the completeness of travellers’ basic contact and critical information and the travellers’ age, nationality, and arrival date. Travellers’ age, nationality, and date of arrival were found to be strong predictors of completeness of contact and critical information on the health declaration form with younger age categories (<35years) and local nationals were more likely to provide complete health information than older and foreign nationals
Conclusion: Percentage completeness of travellers’ health information was appreciable with older persons and foreign nationals less likely to provide incomplete health information. We suggest that efforts to enhance data capture at Points of Entry should prioritize foreign nationals and the aged. Port Health Officials should endeavour to assist/guide foreign nationals and the aged to entirely fill out health declaration forms as a measure to enhance quality and completeness of data for effective disease surveillance.
Effects of Seasonal Variation on Air Quality and Microbial Composition around Sawmilling Sites in South East Nigeria
Authors: Obike-Martins V. , Fashola M. S. , Oji N. C. , Nwaugo V. O. , Uchenna F. U. , Okwy-Irokanulo I. N. , Enya E. 
Published: May 2022

Background: The demand for wood and wood products for use in construction and building has resulted in a surge in sawmilling activities especially in Nigeria with resultant incessant emissions into the environment.
Aims: This study was therefore aimed at investigating the air quality status and microbial composition of air around two different sawmill facilities.
Place and Duration of Study: This study was carried out within sawmilling sites at the Ahiaeke and Okigwe Timber markets in Abia and Imo states of Nigeria respective during the dry and rainy seasons.
Methodology: Air quality determination was done in–situ using hand held environmental sensor meters (HANNA Air Monitors, Rhodes Island, USA). Bacterial and fungal concentration (cfu/m3) in the air of saw-mill sites were evaluated by passive air sampler. Petri dishes containing nutrient agar, MacConkey and Sabouraud dextrose agar were exposed at intervals of 10 minutes, 20 minutes and 30 minutes at four designated points as 0m, 50m, 100m and 500m (control).
Results: Seasonal trends were observed in the levels of air pollutants from both sites in this study. PM2.5 and PM10 were at the peaks during the dry season at both sites (Ahiaeke and Okigwe) reaching 134ppm and 275ppm respectively for Ahiaeke whilst it was 39ppm and 65ppm respectively for Okigwe at ground level (0m). There was a continual decline in the values observed for H2S and CH4 as the distances decreased at both sites during dry seasons at 100m while at 500m (control) nothing was detected. It was determined that sampling times of 10minutes yielded countable bacterial growth of 7.4cfu/m3 and 6.2cfu/m3 at the 0m and 50m distances respectively at the Ahiaeke site. A sampling time of 30minutes yielded increased bacterial load of 9.9cfu/m3 and 8.4cfu/m3 at the 0m and 50m distances respectively at same site. A similar trend was observed for total bacterial, coliform and fungal counts at the Okigwe site. Nucleotide sequences of bacterial 16S rRNA gene fragments retrieved from bacterial isolates in this study were deposited in the GenBank nucleotide sequence database under accession nos. MK621199, MK621103, MK621201, MK640631, MK640622, MK640625, MK640623, MK640628, MK640630, MK621201, MK643270, MK621195, MK640785, MK640842 and MK640843 for the bacterial isolate whereas the fungal isolates were deposited with MK621199, MK621202, MK640642 and MK640638.
Conclusion: The results obtained in this study are not only useful in providing information on the prevailing air quality but also justify the need for epidemiological research in the area to ascertain the level of impact of continuous gaseous emission from the sawmill on the pollution of the sites.
The Prevalence Rate of Helicobacter pylori amongst Patients Presenting with Presumptive Gastritis in Rivers State, Nigeria Using Antigen Detection Method
Authors: Agi V. N. , Ollor O. A. , Azike C. A. , Naziga D. B. 
Published: May 2022

Background: Gastritis is an inflammation of the protective lining of the stomach which has been a global burden in the past decades. It can be caused by irritation, excessive alcohol use, chronic vomiting, stress, or the use of certain medications such as aspirin or other anti-inflammatory drugs. It may also be caused by Helicobacter pylori- a gram-negative, microaerophilic, spiral (helical) bacterium usually found in the stomach.
Methodology: A cross-sectional, hospital-based study aimed at determining the prevalence rate of Helicobacter pylori amongst patients presenting with presumptive gastritis was carried out at gastroenterology clinic of Rivers State University Teaching Hospital Port Harcourt. Two hundred and forty two (242) male and female participants were recruited randomly for the study, their stool samples were analyzed using On Site H. pylori antigen® (USA) and fecal occult blood (ROSTEC™) Rapid Diagnostic Test Kits, while characteristics and symptoms for gastritis were assessed with pretest questionnaires. Data generated from this study were statistically analyzed using MS Excel 2007 and represented in charts and tables.
Results: The prevalence rate of H. Pylori was found to be 55% in Rivers State University Teaching Hospital (RSUTH) with a higher prevalence among females than males and an increase in prevalence but decline above 49 years.
Conclusion: H. pylori testing should be regarded as an important aspect in clinical practice to help in treatment and better eradication of the infection in patients; this will lead to a significant decrease in gastritis in patients of different age group whether with symptoms or asymptomatic.
Wind Energy Production from Vertical Axis Wind Turbine on Offshore Production Platforms in Trinidad
Authors: Ramkissoon Rikhi , Manohar Krishpersad , Adeyanju Anthony 
Published: May 2022

Aims: To estimate the available power that can be generated from wind on Oil and Gas production Platforms offshore Trinidad.
Place and Duration of Study: Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, University of the West Indies, St Augustine Campus. Data collected at a bpTT production platform offshore east coast Trinidad between January 2019 to November 2019.
Methodology: The East coast of Trinidad was chosen due to the presence of high yearly wind speeds. The wind data was collected 80 kilometers off Trinidad Southeast coast, east of the bpTT Cashima production platform for the year 2019. Wind speeds varied from 5.3 meters per second in October to 8.8 meters per second in June. The overall wind speed average for the year 2019 was 7.4 meters per second. The vertical axis wind turbine considered here was modeled using Parashivoiu's double multiple streamtube model concept. The VAWT modelled had 3 NACA0018 blade profile, a blade length of 2.5 meters and a diameter of 2 meters.
Results: The modeled vertical axis wind turbine monthly total power output varied from 5.43 KW to 20.34 KW. The daily average expected power output from the VAWT ranged from 175 Watts to 678 Watts. It can be observed that the months January to July gave higher daily and monthly average power generation due to these months having the highest wind speeds due to local weather conditions.
Conclusion: The VAWT modelled in this study can generate on average, 463 Watts of power per day with a peak average of 678 Watts of power per day in June from a single turbine. The total average power produced for the year 2019 was 151.11 KW. The turbine was sized as not to have a large footprint on the offshore platform. It is demonstrated here that substantial support and rationale is needed for the potential advancement of VAWT’s for conditions that prevail offshore Trinidad, owing to their lower extraction costs and more robust geometry due to the use of existing offshore platforms.
The Promise of
eQTL
Studies in Dissecting Crop Genetic Basis and Evolution
Authors: Fu Junjie , Leng Pengfei , Wang Guoying , Zhao Jun 
Published: May 2022

Abstract

Most traits important for crop production are affected by polymorphisms in the genome. The application of genome‐wide association studies (GWASs) has analysed numerous genetic loci controlling complex traits, highlighting the significant roles of non‐coding regulatory variants and networks. During the past decade, there have been continuous advancements in high‐throughput RNA sequencing technology applied to crop genomes, along with expression quantitative trait locus (eQTL) mapping based on GWASs with diverse lines. These developments have facilitated considerably superior resolution to uncover the detailed genetic basis of whole transcriptomic variation, which can connect DNA polymorphism to individual genes and provide an effective approach to elucidate the regulatory networks underlying phenotypes. In this article, we comprehensively summarise the technical and computational considerations of eQTL mapping, especially using RNA sequencing of association populations. Through integration with
trans
hotspots, response or dynamic eQTLs, and network analyses, eQTL studies on crops aid in understanding the regulatory networks and connections among genes in metabolic pathways, development, or response to stimuli. We outline the approaches to integrate eQTL results with GWASs, which can greatly improve the possibility of identifying causal genes and regulatory networks responsible for complex traits. Regulation information from eQTL mapping can also be used to elucidate the divergence and stabilisation of gene expression during crop evolution. Although facing several technical challenges and presently limited to a few sample points in crops, eQTL studies hold great potential for advancing our knowledge of the genomic base and evolution of complex traits, and supports molecular breeding of crops.
Flexible VO2 Films for In‐Sensor Computing with Ultraviolet Light
Authors: Li Ge , Xie Donggang , Zhang Ziye , Zhou Qingli , Zhong Hai , Ni Hao , Wang Jiaou , Guo Er‐jia , He Meng , Wang Can , Yang Guozhen , Jin Kuijuan , Ge Chen 
Published: May 2022

AbstractWith their unique advantages in portability, shape adaptability, and human friendly surfaces, flexible electronics pave the way for the implementation of wearable electronic textiles and human–machine interfaces. Although organic materials are promising for flexible devices because of the low‐cost manufacturing and inherent flexibility, they meet challenges in harsh environments such as ultraviolet (UV) irradiation, which limits their applicability in UV sensors. Here, a flexible UV neuromorphic sensor is presented using inorganic vanadium dioxide (VO2) films grown on mica substrates. The flexible device shows UV photoinduced nonvolatile phase transition, and can be reversibly modulated using electrolyte gating. The optical responses remain almost unchanged after 10 000 bending cycles or at small bending radius, exhibiting high tolerance to the bending deformation. Besides, the variations in image recognition accuracy under different bending conditions keep within 1.6%, indicating that the device can be adapted to various deformation conditions. By constructing near‐/in‐sensor computing architectures using the flexible VO2 neuromorphic sensors with photoinduced nonvolatile phase transition, both static image processing and motion detection are realized without redundant and massive information transfer. This result lays the foundation for the development of flexible UV neuromorphic sensors.
Anisotropic Electrical Conductivity and Isotropic Seebeck Coefficient Feature Induced High Thermoelectric Power Factor >1800 µW m−1 K−2 in MWCNT Films
Authors: Sun Xu , Wang Yizhuo , Li Kuncai , Wang Jing , Dai Xu , Chong Daotong , Yan Junjie , Wang Hong 
Published: May 2022

AbstractLightweight and low‐cost flexible thermoelectric (TE) materials improve the heat‐to‐electricity conversion efficiency compared to rigid materials by minimizing the heat loss between TE devices and heat sources in waste heat recovery. Multi‐walled carbon nanotube (MWCNT) has excellent mechanical and electrical properties. However, the TE power factor (PF) of MWCNTs is much lower than single/double‐walled carbon nanotube (S/DWCNT), which is often lower than 40 µW m−1‐K−2. Herein an effective way to achieve high PFs of ≈1800 µW m−1‐K−2 for p‐type and ≈1000 µW m−1‐K−2 for n‐type in flexible MWCNT films is reported. The high power factor is achieved by taking advantage of the anisotropic electrical conductivity and isotropic Seebeck coefficient feature of 1D CNTs as well as the following doping and cold‐pressing to improve the electrical conductivity of MWCNT films. The PF values are comparable to that of state‐of‐the‐art S/DWCNT films and most inorganic TE materials. A Lego‐like TE generator (TEG) with an assembling structure is fabricated to show the heat‐to‐electricity ability of the materials, which exhibits the highest areal output power of ≈27 W m−2 among CNT‐based flexible TEGs. This method may be extended to other 1D‐material based composites to boost the development of high PF flexible TE materials.
Unveiling the Complementary Manganese and Oxygen Redox Chemistry for Stabilizing the Sodium‐Ion Storage Behaviors of Layered Oxide Cathodes
Authors: Jin Junteng , Liu Yongchang , Shen Qiuyu , Zhao Xudong , Zhang Jian , Song Yuzhu , Li Tianyu , Xing Xianran , Chen Jun 
Published: May 2022

AbstractLayered oxide cathodes for sodium‐ion batteries (SIBs) have drawn increasing attention owing to their fascinating additional capacity contributed by oxygen‐redox chemistry. Unfortunately, excessive oxygen redox incurs an irreversible oxygen release, deteriorating the cyclic stability and compromising the advantage of additional capacity. Significant efforts have been made so far to stabilize lattice oxygen, but the potential advantages associated with oxygen loss have been ignored. Herein, a complementary Mn and O redox mechanism is first revealed in a novel P2‐Na0.75Ca0.04[Li0.1Ni0.2Mn0.67]O2 cathode. The partial oxygen release activates more Mn3+/Mn4+ redox capacities upon cycling, which effectively compensate the capacity loss from O2‐/On‐ redox and thus enable an ultra‐stable cycling performance (capacity retentions of 102.1% and 95.2% over 100 and 200 cycles at 5 C, respectively). The fast Na+ diffusion kinetics of the cathode also ensure an exceptional rate capability (133.1 and 68.8 mAh g‐1 at 0.1 and 20 C, respectively). The electrode crystal/electronic structure evolution and charge compensation mechanism upon sodiation/desodiation have been elucidated via systematic operando measurements and theoretical computations. The complementary chemistry is a universal principle that stabilizes the Na‐storage behaviors of Mn‐based oxide cathodes, providing new opportunities for anionic redox to boost the energy density and cycling life of SIBs simultaneously.
Reconfigurable Logic‐in‐Memory Using Silicon Transistors
Authors: Lim Doohyeok , Cho Kyoungah , Kim Sangsig 
Published: May 2022

AbstractIn this paper, a novel reconfigurable logic‐in‐memory built using silicon transistors is proposed. The silicon transistor can be reconfigured as p‐ or n‐switchable memory by controlling the polarity of the gate inputs. These electrical characteristics are enabled by utilizing holes or electrons as the majority charge carriers for the positive feedback loop. The reconfigurable logic‐in‐memory functions of the NOT and YES gates with the same cell comprising a silicon transistor and load resistor are demonstrated. Moreover, it is revealed that a two‐input reconfigurable logic‐in‐memory cell, based on two silicon transistors and a load resistor, functions as negative‐AND and OR gates. This novel reconfigurable logic‐in‐memory technology can facilitate the development of next‐generation low‐power and high‐performance computing.