bluuebunny/crossref_metadata_2025 huggingface dataset:
A pre-pandemic COVID-19 assessment of the costs of prevention and control interventions for healthcare associated infections in medical and surgical units in Québec
Authors: Tchouaket Eric , Robins Stephanie , Boivin Sandra , Sia Drissa , Kilpatrick Kelley , Dubreuil Bruno , Larouche Catherine , Parisien Natasha , Létourneau Josiane
Published: June 2021

Background

Healthcare-associated infections (HCAIs) present a major public health problem that significantly affects patients, health care providers and the entire healthcare system. Infection prevention and control programs limit HCAIs and are an indispensable component of patient and healthcare worker safety. The clinical best practices (CBPs) of handwashing, screening, hygiene and sanitation of surfaces and equipment, and basic and additional precautions are keystones of infection prevention and control (IPC). Systematic reviews of IPC economic evaluations report the lack of rigorous empirical evidence demonstrating the cost-benefit of IPC program in general, and point to the lack of assessment of the value of investing in CBPs more specifically.
Objective

This study aims to assess overall costs associated with each of the four CBPs.
Methods

Across two Quebec hospitals, 48 healthcare workers were observed for two hours each shift, for two consecutive weeks. A modified time-driven activity-based costing framework method was used to capture all human resources (time) and materials required (e.g. masks, cloths, disinfectants) for each clinical best practice. Using a hospital perspective with a time horizon of one year, median costs per CBP per hour, as well as the cost per action, were calculated and reported in 2018 Canadian dollars. Sensitivity analyses were performed.
Results

A total of 1831 actions were recorded. The median cost of hand hygiene (N = 867) was 19.6 cents per action. For cleaning and disinfection of surfaces (N = 102), the cost was 21.4 cents per action, while cleaning of small equipment (N = 85) was 25.3 cents per action. Additional precautions median cost was $4.13 per action. The donning or removing or personal protective equipment (N = 720) cost was 75.9 cents per action. Finally, the total median costs for the five categories of clinical best practiced assessed were 27.2 cents per action.
Conclusion

The costs of clinical best practices were low, from 20 cents to $4.13 per action. This study provides evidence based arguments with which to support the allocation of resources to infection prevention and control practices that directly affect the safety of patients, healthcare workers and the public. Further research of costing clinical best care practices is warranted.
Looking into the flora of Dutch Brazil: botanical identifications of seventeenth century plant illustrations in the Libri Picturati
Authors: Alcántara-Rodríguez Mireia , Françozo Mariana , Andel Tinde Van
Published: June 2021

The Libri Picturati includes a collection of plant illustrations from seventeenth century Dutch Brazil that is kept in the Jagiellonian library in Krakow since World War II. While many studies focused on the artistic details of these images, we identified the flora depicted. We used contemporary textual sources (e.g., Historia Naturalis Brasiliae), monographs and taxonomist’ assessments. We checked origin, life form, domestication and conservation status and the plant parts that are represented. We identified 198 taxa, consisting mostly of wild, native rainforest trees and 35 introduced species. Fertile branches are the most represented, although some loose dry fruits and sterile material were also painted, which sheds light into the collection methods by naturalists in Dutch Brazil. Several species are no longer abundant or have become invasive due to anthropogenic influences since colonialism. Through this botanical iconography, we traced the first records of the sunflower and the Ethiopian pepper in Brazil, as well as the dispersion and assimilation of the flora encountered in the colony by Indigenous, African and European peoples. We emphasized the relevance of combining visual and textual sources when studying natural history collections and we highlighted how digitalization makes these artistic and scientific collections more accessible.
Does the copepod community of the Ganges River estuary of India indicate ecological stress?
Authors: Bhattacharya Papiya , Karan Samya , Bhattacharya Bhaskar Deb , Paul Sourav
Published: June 2021

Copepods are considered as indicators of ecological stresses of estuaries. Spatial-temporal changes of diversity, abundance, and dominance of the copepod community of India's Ganges River estuary were hypothesised to result from abiotic fluctuations, seasonal change and the COVID-19 lockdown which possibly affected the habitat. This hypothesis was studied by sampling the estuary on different occasions between February 2019 and October 2020. Salinity and pH showed significant temporal variability but not significant spatial variability. Water temperature showed no significant spatial-temporal variability. Salinity showed significant negative relationships with diversity and abundance of the copepod community. After the COVID-19 lockdown (between unlock phase 1 to 5), nutrient status of the estuary did not show significant temporal variation. The copepod community mostly comprised calanoids except for the cyclopoids Oithona spp. Relative abundances of Pseudodiaptomus binghami, Eucalanus crassus and Labidocera euchaeta declined but Paracalanus indicus, Acrocalanus gibber, Acrocalanus gracilis, Acartia spinicauda, Acartia sewelli and Oithona brevicornis increased after COVID-19 lockdown. Bestiolina similis was the most abundant copepod and along with Acartiella tortaniformis, Acartia spinicauda, Paracalanus parvus and O. brevicornis co-dominated the community on various occasions. Spatial ordination of the copepod community was not significant either in the pre- or post-lockdown period. Diversity and total abundance of the copepod community were affected neither by seasonal change nor by temporal variability of water temperature and pH. Temporal variability of species richness was significant only in the post-lockdown period. Pre- vs. post-lockdown comparisons of diversity indices and total abundance of the copepod community were not significant. Overall, copepods were not much affected by abiotic and seasonal changes, and the COVID-19 lockdown. That indicates their flexibility to habitat variability and less suitability as indicators of chronic ecological stresses of excessively large river-estuaries.
Unveiling metabolic vulnerability and plasticity of human osteosarcoma stem and differentiated cells to improve cancer therapy
Authors: Sala Gerardo Della , Pacelli Consiglia , Agriesti Francesca , Laurenzana Ilaria , Tucci Francesco , Tamma Mirko , Capitanio Nazzareno , Piccoli Claudia
Published: June 2021

BackgroundDefining the metabolic phenotypes of cancer-initiating cells or cancer stem cells and of their differentiated counterparts might provide fundamental knowledge for improving or developing more effective therapies. In this context we extensively characterized the metabolic profiles of two osteosarcoma-derived cell lines, the 3AB-OS cancer stem cells and the parental MG-63 cells. MethodsTo this aim Seahorse methodology-based metabolic flux analysis under a variety of conditions complemented with real time monitoring of cell growth by impedentiometric technique and confocal imaging were carried out. ResultsThe results attained by selective substrate deprivation or metabolic pathway inhibition clearly show reliance of 3AB-OS on glycolysis and of MG-63 on glutamine oxidation. Treatment of the osteosarcoma cell lines with cisplatin resulted in additive inhibitory effects in MG-63 cells depleted of glutamine whereas it antagonized under selective withdrawal of glucose in 3AB-OS cells thereby manifesting a paradoxical pro-survival, cell-cycle arrest in S phase and antioxidant outcome. ConclusionsAll together the results of this study highlight that the efficacy of specific metabolite starvation combined with chemotherapeutic drugs depends on the cancer compartment and suggest cautions in using it as a generalizable curative strategy.
Longitudinal observation of antibody responses after SARS-CoV-2 infection at 14 months
Authors: Zaidi Asiya kamber , Dehgani-Mobaraki Puya , Yadav Nidhi , Floridi Alessandro
Published: June 2021

A better understanding regarding antibody responses against SARS-CoV-2 after natural infection could provide valuable insights into the future implementation of vaccination policies. In this study, we aimed to assess the dynamics of IgG antibody titers in recovered COVID-19 patients over 14 months after mild and moderately severe infection using two FDA-approved immunoassays against SARS-CoV-2 Nucleocapsid protein (NCP)and anti-spike-receptor binding domain (S-RBD) through sequential serological tests at different time points. The demographics and clinical profile, that might be associated with the magnitude and longevity of antibody response were also analyzed.
Our results suggest antibody persistency in 31 out of 32 (96.8%) subjects at 14 months post-infection. A significant positive association was observed between disease severity and anti-S-RBD IgG titers at 14 months. Patients who reported a loss of smell and taste during the clinical course of the disease also developed significantly better antibody titers. Patients who were seronegative for anti-NCP IgG (n=7) at 10 months, were found to be seropositive for anti-S-RBD IgG at 12,13 and 14 months emphasizing on higher false-negative rate for N protein-based antibody assays when compared with the anti-S-RBD assays.
This study calls for prioritizing vaccination for “naive” individuals (with no previous history of COVID-19 infection) and recovered but antibody-negative individuals instead of “vaccination for all”. This strategy would be helpful in low-resource settings and areas experiencing vaccine shortages by saving time, effort, and assets that could be sourced for the vulnerable populations.
Credibility of disability estimates from the 2011 population census in Poland
Authors: Gołata Elżbieta , Dehnel Grażyna
Published: June 2021

The problem of disability is perceived as one of the most serious social issues faced by the contemporary society. The number of people with disability is consistently rising for a variety of reasons, including the aging of the population. Data on disability are collected through numerous statistical surveys, among which censuses are the most wide-scale ones. In the period between the 2002 and 2011 censuses (the last two censuses conducted in Poland), a 14% decrease in the number of people with disabilities was observed. However, it should be emphasised that significant modifications were introduced to the methodology of the last census. Population census 2011 was the first census in Poland combing administrative data sources and the survey sampling method. The main objective of the study is to assess the quality of estimates relating to the number of disabled persons, obtained on the basis of the 2011 census data. It is a comparative study aimed at identifying the similarities and discrepancies between the estimates, and determining the size and source of these discrepancies. The analysis takes into account such aspects as the measurement methods, the definitions and criteria of disability, the voluntary nature of the question, and the quality of the information on disability obtained from various sources.
Developing calibration estimators for population mean using robust measures of dispersion under stratified random sampling
Authors: Audu Ahmed , Singh Rajesh , Khare Supriya
Published: June 2021

In this paper, two modified, design-based calibration ratio-type estimators are presented. The suggested estimators were developed under stratified random sampling using information on an auxiliary variable in the form of robust statistical measures, including Gini’s mean difference, Downton’s method and probability weighted moments. The properties (biases and MSEs) of the proposed estimators are studied up to the terms of first-order approximation by means of Taylor’s Series approximation. The theoretical results were supported by a simulation study conducted on four bivariate populations and generated using normal, chi-square, exponential and gamma populations. The results of the study indicate that the proposed calibration scheme is more precise than any of the others considered in this paper.
STEREOTIPI I OSJEĆAJI KAO PREDIKTORI NAMJERA PONAŠANJA U KONTEKSTU IZBJEGLIČKE KRIZE
Authors: Franc Renata , Maglić Marina , Pavlović Tomislav
Published: June 2021

Cilj rada je u kontekstu izbjegličke krize provjeriti ulogu stereotipa i međugru-pnih emocija u objašnjenju iskazanih namjera međugrupnih ponašanja polazeći od proširenog Modela sadržaja stereotipa, tzv. BIAS map modela. Rad temeljimo na po-dacima prikupljenim 2016. godine online anketiranjem prigodnog uzorka hrvatskih građana (N = 468) na temu stavova o izbjeglicama. Korištenim instrumentima zahva-tili smo dvije dimenzije osobnih stereotipa o izbjeglicama: toplinu i kompetentnost, četiri međugrupne emocije: divljenje, zavist, prezir i sažaljenje, te namjere dvaju ti-pova ponašanja: aktivno pomaganje i aktivno nanošenje štete izbjeglicama. Na općoj razini rezultati upućuju na to da stereotipi i međugrupne emocije predviđaju namjere aktivnog pomaganja i aktivnog nanošenja štete izbjeglicama. Konkretno, u skladu s postavkama BIAS modela potvrđeno je da su stereotipi o toplini (u odnosu na stereo-tipe o kompetentnosti) primarni prediktori namjera i aktivnog pomaganja i nanošenja štete, a da su emocije bitni neposredni prediktori namjera te da (djelomično) posre-duju efekte stereotipa na namjere aktivnih ponašanja. Međutim, rezultati o pojedinim emocijama kao prediktorima aktivnih ponašanja i posrednicama efekata stereotipa, sukladno dijelu dosadašnjih nalaza, odstupaju od teorijskih očekivanja.
Što roditelji imaju pravo znati o dječjim vršnjačkim odnosima – mišljenje adolescenata i njihovih majki
Authors: Raboteg-Šarić Zora , Zovak Ivana
Published: June 2021

Cilj istraživanja bio je ispitati stavove adolescenata i njihovih majki o tome što roditelji imaju pravo znati o svojoj djeci te razlike u stavovima roditelja i djece u odno-su na spol i dob adolescenata. Uzorak je obuhvaćao 188 srednjoškolaca (94 djevojke i 94 mladića) prosječne dobi od 16,6 godina i njihove majke (N = 188). Primijenjena je hrvatska verzija Upitnika roditeljskog prava na informacije o djeci (Right to Know In-ventory, Krein i Brown, 2004), kojim se mjere stavovi prema legitimnosti roditeljskog autoriteta u odnosu na četiri domene vršnjačkih odnosa adolescenata: aktivnosti s pri-jateljima, značajke odnosa, negativne karakteristike vršnjaka i pozitivne karakteristike vršnjaka. Rezultati su pokazali da majke općenito procjenjuju svoje pravo na znanje o djeci i njihovim aktivnostima većim nego što im to pravo daju adolescenti. Dobivene su značajne razlike između rezultata majki i djece na svim skalama Upitnika roditelj-skog prava na informacije o djeci, osim za pozitivne karakteristike vršnjaka. Složene analize varijance pokazale su značajan efekt spola adolescenata na njihove stavove o roditeljskom pravu na informacije o djeci, kao i značajan efekt spola djeteta na stavove majki. U obje analize učinci dobi djeteta te interakcije spola i dobi nisu značajni. Dje-vojke, u usporedbi s mladićima, procjenjuju značajno većim roditeljsko pravo na in-formacije o djeci u svim područjima, osim za pozitivne karakteristike vršnjaka. Majke koje imaju kćer smatraju da imaju značajno veće pravo na informacije o aktivnostima djece s prijateljima i značajkama njihovih odnosa s vršnjacima nego majke sinova. Rezultati se razmatraju u odnosu na istraživanja o legitimnosti roditeljskog autoriteta različitim socijalnim domenama i istraživanja o adolescentskom samootkrivanju. Ključne riječi: adolescenti, autonomija, odnosi s vršnjacima, roditeljsko pravo na informacije
Applications of dispersive sum rules: $ε$-expansion and holography
Authors: Carmi Dean , Penedones Joao , A. Silva Joao , Zhiboedov Alexander
Published: June 2021

We use Mellin space dispersion relations together with Polyakov
conditions to derive a family of sum rules for Conformal Field Theories
(CFTs). The defining property of these sum rules is suppression of the
contribution of the double twist operators. Firstly, we apply these sum
rules to the Wilson-Fisher model in d=4-\epsilond=4−ϵ
dimensions. We re-derive many of the known results to order
\epsilon^4ϵ4
and we make new predictions. No assumption of analyticity down to spin
00
was made. Secondly, we study holographic CFTs. We use dispersive sum
rules to obtain tree-level and one-loop anomalous dimensions. Finally,
we briefly discuss the contribution of heavy operators to the sum rules
in UV complete holographic theories.
The unitary representations of the Poincar\'e group in any spacetime dimension
Authors: Bekaert Xavier , Boulanger Nicolas
Published: June 2021

An extensive group-theoretical treatment of linear relativistic field
equations on Minkowski spacetime of arbitrary dimension
D\geqslant 3D≥3
is presented. An exhaustive treatment is performed of the two most
important classes of unitary irreducible representations of the
Poincar'e group, corresponding to massive and massless fundamental
particles. Covariant field equations are given for each unitary
irreducible representation of the Poincar'e group with non-negative
mass-squared.
Health problems in geriatric horses
Authors: RATZ MARCJANNA M. , KACZMAREK BEATA , WNUK-PAWLAK ELŻBIETA , JANICKA WIKTORIA , JANCZAREK IWONA
Published: June 2021

Geriatric horses, like other animals (and humans), suffer from various diseases called old-age diseases. This publication has been developed in response to the needs of owners and caretakers of a growing number of geriatric horses. Since the horse has a long life span, the geriatric stage can encompass up to 1/3 of the animal’s lifetime and can quite often last more than 10 years. This paper aims at systematizing the information of the most prevalent geriatric diseases in horses which inhibit their performance and considerably lower their quality of life. Knowledge of these diseases can help to avoid mistakes when keeping and managing such horses and may provide guidelines for maintaining welfare and preventive treatments. This article reviews the most prevalent old age health problems, their origin, diagnostics, course and effects for the body. Information about the most common diseases of old age in horses is found in 119 references. The nine sub-chapters include the diseases of the digestive system, especially the oral cavity, the stomach and bowels’ diseases, the respiratory system, the cardiovascular system, dysfunctions of the locomotor system, eye diseases, endocrine and neuroendocrine diseases as well as the immune system, neoplasms and general body condition. It should be emphasized that there is the possibility to maintain the well-being of geriatric horses through progress in veterinary medicine and sharing knowledge of equine functioning and health protection. Preventive health care should include regular blood testing, regular dental check-ups and adequate nutrition adapted to the overall condition, dental condition, physical activity and comorbidities. Adequate individual supplementation recommended by a nutrition specialist and a veterinarian is also essential.
Experiences of Registered Nurses’ in Assessing Postoperative Pain among Children: Exploring the Challenges in Effia Nkwanta Regional Hospital, Ghana
Authors: Dwamena Sylvia Oger Ofosu
Published: June 2021

Pain is a common occurrence in children after surgery, but it has been neglected over the years. Management of pain is a fundamental human right for everyone who undergoes any surgical procedure. Pain assessment is the initial step of pain management and involves subjective and objective (behavioural and physiological) measures. This study aimed to describe the challenges of registered nurses in assessing post-operative pain among children (0- 3 years)). Descriptive phenomenology was adopted. Purposive sampling was used to recruit nine registered nurses with experience in nursing children after surgery in Effia Nkwanta Regional Hospital (Ghana). The researchers conducted an in-depth interview which was audio-recorded, transcribed verbatim and qualitatively analysed following Colaizzi’s approach to descriptive phenomenology analysis. The study findings revealed that nurses have experienced several challenges in assessing post-operative pain, including inadequate knowledge, inadequate resources, structural challenges, time constraints, and child-imposed factors. Given these results, nurses should make opportunities to enhance their skills and utilize evidence-based approaches to formally assess paediatric post-operative pain.
Approaches of Cooperative Learning across Ministry of Health Nursing Education Institutions in Bamenda-Cameroon: Perceptions of Students and Teachers
Authors: Yuh Loh Stanley
Published: June 2021

Cooperative learning is an effective teaching strategy that maximizes student’s learning. A descriptive study involving 219 nursing students and 27 teachers used a self-administered questionnaire to determine the approaches of cooperative learning and perceptions of nursing students and teachers in Bamenda. The study set to assess the use of cooperative learning in Bamenda-Cameroon, identify the techniques implemented, highlight its achievements, challenges and describe students’ and teachers’ perceptions. The table of random numbers was used to obtain a probability sample of students while teachers were conveniently sampled. Data were collected using a modified Cooperative Learning Implementation Questionnaire and analysed using SPSS version 20.0 at an alpha level of 0.05. Descriptive statistics was used to summarise numerical data, Correlation analysis through the Pearson Product Moment correlation test was used to test the relationship between cooperative learning and students’ achievement, while t-test was used to compare the perceptions of students and teachers on cooperative learning. The margin of error was set at P ≤ 0.05. Eventually, cooperative learning was noted to be occasionally used in Bamenda, with learning together, think-pair-share, group investigation and peer instruction identified as the methods often used.. The achievements of cooperative learning were affirmed with almost no disadvantage as the use of cooperative learning was observed to always improve students’ achievement. Both groups of respondents indicated their love for cooperative learning and willingness to implement it but did not really agree on how it was implemented. Within the perspectives of this study, it was observed that cooperative learning existed as an informal technique of education in Bamenda.
Octadecanal as the Male-Produced Aggregation Pheromone of the Coconut Weevil, Amerrhinus ynca (Coleoptera: Curculionidae)
Authors: dos Santos Neta Palmira , Fávaro Carla , Macedo Sarah , Moura José Inácio , Bello Jan , Santos Rândilla , Zarbin Paulo
Published: June 2021

The beetle Amerrhinus ynca Sahlberg, 1823 (Coleoptera: Curculionidae) causes damage to several species of the Arecaceae family. The larvae of this palm weevil damage palm trees by causing perforations in the leaf rachis, obstructing the flow of nutrients to the plant. To date, are no registered insecticides for the control of A. ynca. An efficient control strategy would be the use of synthetic pheromones of this beetle for integrated pest management tactics. In this work, the aggregation pheromone of A. ynca was identified from adults collected as larvae and pupae from the rachis of coconut palm. The volatile compounds produced by A. ynca were collected via headspace aeration of adult beetles, and the identification of the pheromone was performed with gas chromatography coupled to mass spectrometry (GC-MS), GC-Fourier transform infrared spectroscopy (GC-FTIR) and GC-electroantenographic detector (GC-EAD). Dual-choice olfactometry experiments were performed to evaluate the bioactivity of the synthetic pheromone. GC analyses showed the presence of a male-specific compound that was identified as octadecanal. In GC-EAD analyses, synthetic octadecanal elicited responses of A. ynca female antennae. Behavioral bioassays showed attractiveness of synthetic compound for males and females, indicating octadecanal as the aggregation pheromone of A. ynca.
Structure Modification of Quinine on C-9 Hydroxyl Group via Esteriﬁcation Reaction
Authors:   Medicinal Chemistry Research Group Research Center for Chemistry (RCC)  Indonesian Institute of Sciences (LIPI), Ernawati Teni , Minarti Minarti ,   Medicinal Chemistry Research Group Research Center for Chemistry (RCC)  Indonesian Institute of Sciences (LIPI), Dewi Narrij Lotulung Puspa ,   Medicinal Chemistry Research Group Research Center for Chemistry (RCC)  Indonesian Institute of Sciences (LIPI)
Published: June 2021

Concept the role played by modified quinine in the asymmetric hydroxyl group inspired studies of modified quinine as chiral organic that lead to drug discovery development. A simple and efficient method for C-9 alkylation and arylation of quinine derivatives was reported. Series quinine derivatives were synthesized through the esterification of the hydroxyl group of quinine. The reaction with various alkyl and aryl carbonyl chloride resulted in the series of ester quinine derivatives. The structure of quinine derivatives was characterized by IR, melting point, UV, 1H NMR, 13C NMR, LCMS.
Analysis of Mercury Concentration on The Water and Sediment at Tiabo River, Roko, West Galela District, North Halmahera
Authors:   Department of Forestry, Faculty of Natural Science and Engineering Technology, Universitas Halmahera, Tabita Tuny Margaretha , Kurnia Kurnia ,   Department of Physics, Faculty of Natural Science and Engineering Technology, Universitas Halmahera
Published: June 2021

Gold mining activity at Tiabo river in the North Halmahera causes the water on the river is contaminated by mercury. The contamination mercury on the water can damage food chain and adverse consequences toward health of people, fish, and so on. The purpose of this study is to obtain the concentration of mercury contamination that was caused by gold mining activity. The water and sediment sample was obtained by purposive sampling. The characterization of concentration mercury in the water and sediment using mercury analyzer HG-300 in the wave length 253.72 nm. The result shows that mercury concentration of the water in the six and five sample point in the rainy session and the dry session respectively is <0.66 µg/L, and the mercury concentration in the sediment shows that the lower value in the upstream river was 1.2 mg/kg and the higher concentration in the middle of river was 8.94 mg/kg respectively in the rainy session. The result indicates that the contamination mercury in the moderate danger level according to the IADC/CEDA data standard.
Sekse- en genderdualiteit in discussie. Spreken over mannelijk en vrouwelijk in kerk en theologie
Authors: Steensma D.J.
Published: June 2021

Speaking about two sexes and two kinds of gender connected with those sexes is the consequence of an ideology that disconnects the gender role and identity from the sex. Gender identity is according to this ideology a choice. The notion of two sexes is a modern invention; premodernity knew of only one sex. The experience of friction between sex and gender identities reinforces uncertainty, as does that of persons who have both male and female sexual characteristics. Some theologians argue in favour of abandoning the binary male-female model of human sexuality. This article argues that contemporary discussions of human sexuality challenge church and theology in the tradition of the Reformation to think through and define their position.
Keterampilan kolaborasi mahasiswa teknologi pendidikan dalam mata kuliah kewirausahaan berbasis proyek
Authors: Nadhiroh Putri Siti , Trilisiana Novi
Published: June 2021

Penelitian ini bertujuan untuk mendeskripsikan, (1) Proses pembelajaran Mata Kuliah Kewirausahaan berbasis proyek pada mahasiswa Teknologi Pendidikan sebagai strategi pengembangan keterampilan kolaborasi; (2) Keterampilan kolaborasi mahasiswa Teknologi Pendidikan. Penelitian ini menggunakan metode kualitatif yang berjenis studi kasus. Teknik pengumpulan data menggunakan observasi, wawancara, dan dokumentasi. Hasil penelitian menunjukkan bahwa kegiatan pembelajaran kewirausahaan sudah dilakukan dengan baik melalui 6 tahapan, yaitu penyajian masalah, perencanaan kerja, penjadwalan, pembuatan proyek, penilaian, dan evaluasi. Keterampilan kolaborasi mahasiswa menunjukkan hasil yang baik, (1) Mahasiswa sudah mampu berkomunikasi dengan baik; (2) Mahasiswa tertib dalam kehadiran; (3) Mampu memimpin anggotanya; (4) Mahasiswa memiliki kesadaran tinggi untuk menyelesaikan proyek; (5) Kerjasama dilakukan dengan baik; (6) Mahasiswa menggunakan sumber terpercaya; (7) Mahasiswa mampu menyesuaikan diri dengan perubahan; (8) Mampu mengontrol emosi; dan (9) Sembilan dari sebelas kelompok lolos terdanai PMW 2019. Namun ada beberapa temuan indikator yang belum maksimal: (1) Mahasiswa tidak membuat peraturan; (2) Kurang percaya diri; dan (3) Pengorganisasian kinerja tidak dilakukan secara rinci. This study aims to describe, (1) The learning process of project-based Entrepreneurship Courses in Educational Technology students as a strategy for developing collaboration skills; (2) Collaboration skills of Educational Technology students. This research uses a qualitative method that is a type of case study. Data collection techniques using observation, interviews, and documentation. The results showed that the entrepreneurial learning activities had been carried out well through 6 stages, namely problem presentation, work planning, scheduling, project making, assessment, and evaluation. Student collaboration skills show good results, (1) Students are able to communicate well; (2) Students are orderly in attendance; (3) Able to lead members; (4) Students have high awareness to complete the project; (5) Cooperation is done well; (6) Students use trusted sources; (7) Students are able to adjust to changes; (8) Able to control emotions; and (9) Nine out of eleven groups qualify for PMW 2019. However, there are some findings of indicators that have not been maximized: (1) Students do not make regulations; (2) Lack of confidence; and (3) Organizing performance is not carried out in detail.
Studi evaluasi program pendidikan dan pelatihan komputer di balai latihan kerja kabupaten bantul
Authors: Ernawati Yuli , Suyantiningsih Suyantiningsih
Published: June 2021

AbstrakPenelitian ini bertujuan untuk mengevaluasi program pendidikan dan pelatihan komputer Tahun 2019 di Balai Latihan Kerja Kabupaten Bantul, ditinjau dari aspek context, input, process, dan product dengan menggunakan model evaluasi CIPP. Penelitian ini merupakan penelitian evaluatif menggunakan pendekatan kualitatif. Teknik pengumpulan data dilakukan dengan metode observasi, wawancara,dan studi dokumen. Teknik analisis data yang digunakan meliputi: reduksi data, penyajian data, dan penarikan kesimpulan. Triangulasi yang digunakan adalah triangulasi sumber dan metode. Hasil evaluasi yang dilakukan dengan menggunakan model CIPP menunjukkan bahwa program pendidikan dan pelatihan Komputer di Balai Latihan Kerja Kabupaten Bantul secara keseluruhan masih belum sesuai dengan standar pelaksanaan Pendidikan dan pelatihan, baik dari aspek context, input, process, maupun product. Namun demikian, derajat ketidaksesuaiannya untuk masing-masing aspek dalam perspektif model CIPP yang dipergunakan masing-masing berbeda.Abstract           This study aims to evaluate the computer training and education program in 2019 at Balai Latihan Kerja Kabupaten Bantul, in terms of context, input, process, and product using the CIPP evaluation model. This research is an evaluative study using a qualitative approach. Data collection techniques carried out using the method of observation, interviews, and document studies. Data analysis techniques used include data reduction, data presentation, and drawing conclusions. Triangulation used is the source and method triangulation. The results of evaluations carried out using the CIPP model show that the computer education and training program at Balai Latihan Kerja Kabupaten Bantul is still not in accordance with the standards of implementing education and training as a whole, both in the context, input, process, and product aspects. However, the degree of discrepancy for each aspect in the perspective of the CIPP model used is different from one to another.
Modul pendidikan perlindungan anak dari kekerasan seksual untuk guru sekolah dasar
Authors: Trilisiana Novi , Ismaniati Christina , Wahyuningsih Dian
Published: June 2021

Penelitian ini bertujuan untuk menghasilkan produk pengembangan berupa modul tentang peningkatan kinerja guru SD dalam penyelenggaraan pembelajaran anak dari kekerasan seksual. Penelitian ini dilaksanakan melalui model penelitian prosedural yang mengacu pada model desain instruksional oleh Atwi Suparman. Model ini memiliki tiga tahap. Tahap pertama adalah mengidentifikasi kebutuhan instruksional yang terdiri dari melakukan analisis instruksional, mengidentifikasi prilaku dan karakteristik awal pengguna produk, dan menulis tujuan instruksional umum. Tahap kedua adalah mengembangkan yang meliputi menulis tujuan instruksional khusus dan menyusun alat penilaian hasil belajar. Tahap ketiga adalah melakukan evaluasi formatif yang termasuk di dalamnya kegiatan revisi. Hasil penelitian berupa modul peningkatan kinerja guru untuk pendidikan perlindungan anak dari kekerasan seksual dinyatakan layak dalam kategori sangat baik. Produk ini disimpulkan layak untuk digunakan berdasarkan instrumen penilaian kelayakan bahan ajar cetak.Kata Kunci: Peningkatan kinerja guru; Modul guru; Anti kekerasan seksual anak; Pendidikan seksual.
Evaluasi dan Retrofit Struktur Gedung Beton Bertulang Akibat Kebakaran
Authors: Hidayati Nurul , Priyosulistyo Henricus , Triwiyono Andreas
Published: June 2021

ABSTRACT Several studies have been carried out related to the impact of fire on the strength of reinforced concrete material. It shows that there is a decrease in strength and a decrease in structural stiffness. The degree of damage is dependent on the temperature and duration of the fire. To ensure accessibility, the building needs to be evaluated whether the building can be re-functioned immediately. The results of site investigation are evaluated to determine the structure retrofit and reinforcement methods and cost-effectiveness compared to the cost of a new building. The office building structure under review is analytically evaluated based on SNI 1726:2019 and SNI 1727:2018. The results showed that 31% of columns and 32% of beams need to be strengthened. In addition, steel bracing and CFRP wrapping on the structural elements were applied. The cost of retrofitting required Rp2.998.488.781,07, which is lower than the cost of the new building structure, which costs Rp4.950.087.016,34. ABSTRAKBeberapa penelitian yang telah dilakukan terkait dampak kebakaran terhadap kekuatan material beton bertulang, memperlihatkan bahwa terdapat penurunan kekuatan dan kapasitas struktur. Tingkat penurunan tergantung antara lain pada suhu dan durasi kebakaran. Untuk meyakinkan tingkat fisibilitas, gedung tersebut perlu dievaluasi kemungkinan dapat atau tidaknya gedung itu difungsikan kembali. Hasil evaluasi tersebut dijadikan pertimbangan dalam menentukan metode perbaikan dan perkuatan yang efektif untuk kemudian dibandingkan dengan biaya pembangunan gedung baru. Struktur gedung kantor PLN Unit Cabang Distribusi Jakarta Raya ini akan dievaluasi dengan cara analitis berdasarkan SNI 1726:2019 dan SNI 1727:2018. Terdapat total 31% kolom dan 32% balok yang perlu diperkuat. Metode perkuatan yang digunakan adalah penambahan bracing baja dan CFRP. Material CFRP tersebut dililitkan pada elemen struktur. Biaya perkuatan yang diperlukan adalah Rp2.998.488.781,07, lebih rendah dibandingkan nilai struktur gedung, yaitu Rp4.950.087.016,34.
Balok Beton Bertulang yang Diperkuat dengan Carbon Fiber Reinforced Polymer Wrap saat Dibebani Beban Gravitasi
Authors: Hadi Brian Widyan , Priyosulistyo Henricus , Siswanto Muhammad Fauzie
Published: June 2021

ABSTRACTInnovation is developed continuously to find an optimal method of strengthening structural components. There are many strengthening methods for reinforced concrete structures. Carbon Fiber Reinforced Polymer Wrap as a flexural strengthening material according to ACI 440.2R was chosen. The research includes gravity load (dead load and live load) as the initial load during test according to SNI 2847-2013 chapter 20. This research examines the strength of the intact beam, strengthened reinforced beam, and failure pattern, respectively, compared to the intact beam's result theoretically and experimentally. The failure test results show that the maximum loads of the experiment beam were similar to the theoretical analysis with a ratio of 0.98 to 1.33. The failure patterns are shear, flexure-shear, spalling and diagonal cracks, and debonding failures. CFRPW can increase the strength and stiffness of the beams. The increase of CFRP beams (BF A and BF B) is 35,27% and 46,24%, respectively. The increase of stiffness ratio of BF A and BF B is 3,48 and 6,62 compared to BK 1. ABSTRAKSebuah inovasi yang terus dikembangkan agar menemukan sebuah metode yang optimal dalam perkuatan komponen struktur balok. Perkuatan balok beton bertulang dapat dilakukan dalam beberapa metode. Carbon Fiber Reinforced Polymer Wrap dipilih sebagai bahan penguat lentur sesuai ACI 440.2R. Penelitian ini meliputi beban gravitasi (beban mati dan beban hidup) sebagai beban awal pada saat pengujian sesuai SNI 2847-2013 pasal 20. Penelitian ini mengkaji kekuatan balok murni, kekuatan balok yang telah diperkuat, pola keruntuhan dan perbandingan antara hasil teoritis dan eksperimental. Hasil pengujian ultimit menunjukkan bahwa balok uji serupa dengan analisis teoritis dengan perbandingan beban maksimum 0,98 dan 1,33. Pola kegagalan adalah retak geser, geser lentur, keretakan spalling dan diagonal serta kegagalan debounding. CFRPW dapat meningkatkan kekuatan dan kekakuan balok. Peningkatan kekuatan BF A 35,27% dan BF B 46,24% terhadap BK 1. Peningkatan rasio kekakuan balok BF A dan BF B bila dibandingkan dengan BK 1 adalah 3,48 dan 6,62.
Lean distribution to minimize waste of time in the stripping process at PT. Pelabuhan Indonesia IV Ambon Branch
Authors: Paillin Daniel Bunga , Camerling B.J. , Nasarany Cristin
Published: June 2021

Stripping process at PT. Port Indonesia IV (Persero) Ambon Branch plays a very important role for expeditions to receive goods from outside its area to meet market needs. However, in the process of distributing containers to stripping blocks, there is a delay in delivery thus it does not reach the target as a result of waste. Based on the data, it is identified that the total lead time of the stripping process is 3,670 minutes which has a non-value-added activity of 3,090 minutes. It is still found delay that causes the waste so that it needs improvement by minimizing the waste. The purpose of this study is to calculate the efficiency of identified wastes and the total activity of the initial time and time after improvement. Data analysis tools used lean distribution conducted by field observations, interviews, questionnaires, and documentation with data processing techniques in the form of big picture mapping, waste identification, value stream analysis tools (VALSAT), process activity mapping, fishbone diagrams, 5W+1H methods, as well as calculating the efficiency of the improvement time. The result of this study showed that there are four wastes of seven wastes identified namely waste of transportation, waste on unnecessary inventory, waste of defects, and waste of waiting time. Waste of waiting time is a critical waste with a percentage of 29.8% based on the results of questionnaires with the causative factors namely careless parking, not paying attention to stock/targets, limited places, indiscipline, and negligence. After the improvement by minimizing waste, the lead time is 1,550 minutes with a total efficiency of activities of 42%.
PERANCANGAN PURWARUPA PEMBANGKIT TERMOELEKTRIK SEBAGAI MEDIA PEMBELAJARAN KONVERSI ENERGI
Authors: Pradana Adlan Bagus , Irawan Fajar , Wisnu Andreas , Saputra Burhan Dwi , Subakti Giri , Yusuf Muhammad , Yunita Thalia Roza
Published: June 2021

ABSTRACT:Thermoelectric is a device which has the ability to efficiently convert heat energy into electrical energy. The voltage generated by this thermoelectric is low, so that it needs to be amplified in order to utilized. Strengthening is done using a DC Boost Converter. The resulting tool can be used as a medium for learning renewable energy conversion.ABSTRAK:Termoelektrik adalah komponen elektronika yang memiliki kemampuan mengubah energi panas menjadi energi listrik. Level tegangan yang dihasilkan oleh elemen termoelektrik ini bernilai rendah. Agar dapat  dimanfaatkan, level tegangan ini perlu melalui proses penguatan terlebih dahulu. Penguatan dapat dilakukan dengan menggunakan DC Boost Converter. Dengan cara seperti ini, termoelektrik dapat dimanfaatkan sebagai pembangkit tenaga listrik. Pada penelitian ini dilakukan perancangan purwarupa pembangkit listrik berbasis termoelektrik yang dapat dipergunakan sebagai media pembelajaran konversi energi terbarukan.
INVESTIGASI TEGANGAN LEBIH TRANSIEN AKIBAT SAMBARAN PETIR PADA GARDU INDUK 150 KV
Authors: Nugroho Setyo Adi
Published: June 2021

ABSTRACT:Electrical energy is the essential things that we need in any aspect of the like industry, hospital, school, etc. Therefore, the transmission of electrical power has to be reliable and continuous. However, those ideal condition is hard to achieve in daily basis because if disruption like lightning impulse. Arrester is a device that prevents or stops overvoltage disruption. In this research, two kinds of arrester are compared and modeling substation devices using simulation software ATPDraw. The simulation result shows us that the Q150NA121A arrester has outstanding performance with an overvoltage value of 454 kV. In the other side, Q150NB121A arrester has overvoltage value at 579 kV.ABSTRAK:Energi listrik merupakan kebutuhan yang sangat penting pada setiap sektor seperti pendidikan, industri, rumah sakit, dan lain-lain. Oleh sebab itu penyaluran energi listrik diharapkan memiliki kontinyuitas dan kehandalan yang tinggi, namun dalam praktiknya hal tersebut sulit tercapai disebabkan karena berbagai macam gangguan salah satunya gangguan tegangan lebih impuls petir. Arester adalah peralatan yang saat ini banyak digunakan secara luas untuk mengurangi dan mencegah gangguan tegangan lebih. Pada penelitian ini dua tipe arester dibandingkan serta memodelkan peralatan yang ada pada gardu induk dengan menggunakan simulasi ATPDraw. Hasil simulasi menunjukkan bahwa arester tipe Q150NA121A mempunyai kinerja yang sangat baik dengan nilai tegangan lebih sebesar 454 kV. Sedangkan untuk arester tipe Q150NB121A nilai tegangan lebih sebesar 579 kV.
Management of an Industry Standard Class in Vocational High Schools
Authors: Suroto Suroto , Hung Nguyen Tien
Published: June 2021

To remove a growing gap between students’ skills received in vocational high schools and real demands in the workforce, industries should be actively involved not only as external users but to work in curriculum development and learning evaluation. This study describes the process of planning, implementation, and supervision of an industry standard class resulted from collaboration between the school and the industry. This study was a qualitative study using data collection techniques of interviews, observation and documentation. The results revealed (1) the industry and the school were partners in planning the industry standard class including development of curriculum, facilities, infrastructure, teachers, and materials, (2) implementation of the class included theoritical and practical learning, and industry practices, (3) supervision was performed by the industry partner administrating industry standard competency tests, and (4) management of the class consisted of three sequenced stages namely selection of students in the third semester, implementation of industry standardized teaching and learning process from the third semester to the sixth semester, and a competency test in the sixth semester.
Creative Thinking Curriculum Infusion for Students of Teachers’ Education Program
Authors: Wu Mingchang , Siswanto Ibnu , Suyanto Wardan , Sampurno Yoga Guntur , Tan Weijen
Published: June 2021

Creative thinking is consistently approved as a crucial competency for people to productively learn and succeed in this globalization and competition era. This article discusses the definition, major factors, and processes of creative thinking, and analyzes its improvement strategies. Furthermore, a curriculum infusion was proposed as an effective strategy to improve individual’s creative thinking in the universities, especially for teachers’ education program. The process of creative thinking curriculum infusion’s development consists of the following steps: (1) development of the creative thinking curriculum objectives, contents, and teaching strategies (2) selection of the existing courses to integrate creative thinking contents, and (3) implementation of creative thinking curriculum infusion model. This article finally suggests universities which provide teachers’ education program to extensively (1) integrate creative thinking contents into regular courses offered in the universities, (2) implement various creative thinking improvement strategies to deliver creative thinking contents, and (3) utilize a creative thinking self-assessment scale to measure students’ creative thinking. Moreover, a creative thinking curriculum infusion model as the recommended methods to improve learners’ creative thinking should be implemented to attain its empirical validation.
The Effect of Problem Based Learning and Teams Games Tournaments Model to Improve Competencies
Authors: Damarwan Eko Swi , Haryanto Haryanto , Tara La
Published: June 2021

This paper explores the potential of problem based learning and teams games tournaments model to improve students’ competencies. The objective of the study was to know the differences in the achievement of basic electrical and electronic competencies of students in terms of cognitive and psychomotor aspects using problem based learning model, teams games tournaments, and conventional learning. This was a quasi-experimental study. Instrument validity was measured through expert judgments and instrument reliability with Spearman Brown. Data collection used a pretest, a posttest, and skill observations. Data analysis techniques used one way ANOVA and a Tukey's post hoc test with a significance level of 0.05. The results revealed (1) differences in the achievement of basic electrical and electronic competencies of students in terms of cognitive and psychomotor aspects between using problem based learning, Teams Games Tournaments, and conventional learning, and (2) the results of the Tukey test showed the sequence of achievement of cognitive and psychomotor aspects of the best as follow: the model of teams games tournaments, problem based learning, and conventional learning.