bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assimilate of work competencies standard into learning outcomes standard to face the G-4.0 era
Authors: Handayani P , Putro T Y 
Published: May 2020

Abstract
Competences of students which collected in the last three years from industries during they conducted internship showed that they have good basic technical knowledge and skills, but work ethic should be improved. This research aims to develop learning process and assessment model to assimilate the work competences standard into learning outcomes. It has taken case study in the Electronic Study Program in Politeknik Negeri Bandung (Polban). Data collected by qualitative approach to find the appropriate learning condition in the workplace that can adopted into learning process and assessment in the campus. This research reveal that work competences cannot be built only by introducing work knowledge at the laboratory, but the students must be directly involved in work situation included assessment of work product and their performed in the end of the work even though it is done in the laboratory. This model could shift “way of thinking and learning of students” so that they more ready to face the world of work than before. Works assignment plays the main role in this case
Low-cost bending test laboratory kit
Authors: Mukarramah S K , Abdullah A G , Sumarto S 
Published: May 2020

Abstract
The big dimension and higher price of conventional bending test machine is making the school and start-up company hard to fulfilled. This study aims to demonstrate a new design of a low-cost and portable laboratory kit that is prospective for bending test. The kit is using hydraulic pressure tools with maximal capacity is about 6 tons. Economic analysis and smaller dimension of this kit (length x width x height of 700x100x750 mm) Showed that this kit is a low-cost and adaptable to classroom and easy to assemble for school. The different between another modification before bending test kit is on the pedestal and the suppressor of the kit is the which is allowing the machine to test materials with Thicker dimensions. The test result Obtained by calculating the maximum compressive force, moment of cross section innersia, flexural strength and elastic modulus of speciment. The result Also Compared with another test material from bending test machine with the American society of testing and materials (ASTM) standard and Showed that there is not much different in the test result for both. Further development of this kit is Potentially implemented an as an experimental tool for the student.
Improving the ability of entrepreneurs to use alternative learning models in the automotive field
Authors: Ridho R , Abdullah A G 
Published: May 2020

Abstract
Entrepreneurial activity is believed to be a tool to encourage economic growth and to solve other economic problems such as unemployment. Entrepreneurship has been widely applied in schools, especially in vocational schools that aim to produce graduates so they can work and be entrepreneurs. There are many learning models that exist in vocational schools at this time, but the learning model does not have an impact on students to have a soul or desire to become entrepreneurs. Therefore, we have conducted a literature review to explain an alternative learning model, which is a self-designed project learning model that is expected to trigger students to become entrepreneurs. A systematic mapping study is used as a basic method for conducting literature reviews. Various relevant journals, which are learning models that can enhance one’s entrepreneurship from various circles, were selected by researchers as preliminary data for a literature review. The various learning models that currently exist do not have enough impact to foster a sense of entrepreneurship in students, whereas learning in SMK should every productive learning must make students master and can make students have a sense of entrepreneurship when learning has ended. In this study describes a self-designed project learning model that will be applied in the automotive field in light vehicle engine tune-up subjects. This alternative learning model has been used by other studies, the researcher applies this alternative learning model in the field of machining that produces an impact on students, i.e. students can increase or make it have the desire to become entrepreneurs.
Development of Cyber-Physical System (CPS) implementation in industry 4.0
Authors: Afrizal A , Mulyanti B , Widiaty I 
Published: May 2020

Abstract
The purpose of this study is to analyze the concept of a cyber-physical system (CPS). The current industry applied it. The method used in making this paper is a systematic literature review. From the results of the literature study, the author founded that CPS is a management model in industry 4.0 that applies the principle of integration of cyber-physical and cyber humans. Cyber human systems (CHS) can provide information feedback at every level because social workers have inherent intelligence, which can be exploited naturally for self-adaptation, corrective, and preventive actions. The CHS configuration level serves as a supervisory control so that decisions made at the level of cognition can be applied, and human workers follow corrective and adaptive measures. As an implication, the role of humans is still vital in industry 4.0.
Additive manufacturing in education
Authors: Ramdhani F F , Mulyanti B 
Published: May 2020

Abstract
Additive manufacturing, or better known as 3D printing today is one technology that is rapidly growing in several countries. This technology is increasingly having an important role not only in business and everyday products, but in the world of education. 3D printer technology can be a medium of learning in the world of education in the implementation of the design in 2D and 3D design drawing students majoring in mechanical engineering. Therefore, research is needed to understand the use of new technologies in education. The purpose of this study was to analyze and gather information about the latest technology used by 3D printing. This research method using a literature review journals in the last 5 years. Findings from the literature review indicates the type of the latest technology used in 3D printing in manufacturing system design using computer-aided design (CAD). Overall, this review could be further research in instructional media in vocational education.
Enhancing student learning achievement using competency-based modules on basic competencies examining the characteristics of refrigerants and lubricating oils
Authors: Suherman A , Wiyono A , Yayat Y , Negara R M H K , Berman E T 
Published: May 2020

Abstract
The purpose of this study was to determine the increase in student achievement using competency-based modules. The study was conducted on the subject of system and the installation of refrigeration with basic competencies examining the characteristics of refrigerants and lubricating oils. This study uses quasi-experimental research methods. Participants in this study were 60 students from the vocational high school in Bandung. The research instrument used was a test, which consisted of pre-test and post-test. Improved student achievement was analyzed using the concept of normalized gain (N-gain) based on pre test and post test score data. The results showed the use of competency-based modules can improve student learning achievement. The achievement of the post test scores of the experimental class students above the minimum completion criteria with an average post test score of 89.39, while the score of the control class was 72.42. Based on the N-Gain value there are differences between the experimental class and the control class which are 79.5 and 46.94, respectively. The use of competency-based modules has implications for improving student achievement to be more optimal. The content of interesting module materials can increase student motivation and activity in learning in the classroom.
Study of students’ experiences of air conditioning practices in vocational education
Authors: Berman E T , Hamidah I , Mulyanti B , Setiawan A 
Published: May 2020

Abstract
The purpose of this study is to determine the experience of students doing air conditioning practicum in vocational education. Practicum activities which are the focus of this research are practicum objectives, preparation of practicum, conditions and number of practicum tools, practicum time, practicum implementation process, competence of lecturers and laboratory assistants, and practicum evaluations. This study used a qualitative method with research participants being students in the refrigeration and air conditioning expertise at a state university in Bandung. The informants involved in this study were seven students who had carried out the air conditioning practicum for in-depth interviews. The FGD (focus group discussion) interview method is used to get general information and individual interviews to get more specific data. The results of this study are expected to provide accurate information about the practicability of student practicum so that better improvements can be made in the future. The implementation of an ideal practicum will support students to develop hands-on and minds-on.
Convergent nitrogen–phosphorus scaling relationships in different plant organs along an elevational gradient
Authors: Chen Xiaoping , Wang Mantang , Li Man , Sun Jun , Lyu Min , Zhong Quanlin , Cheng Dongliang 
Published: May 2020

Abstract
A general relationship between the nitrogen (N) and phosphorus (P) content of all plant organs (e.g. leaf, stem, and root) is hypothesized to exist according to whole-plant economics spectrum (PES) theory, but the evidence supporting these expected patterns remains scarce. We measured the N and P content of the leaves, twigs and fine roots of 64 species in three different forest communities along an elevational gradient (evergreen broad-leaved forest, 1319 m a.s.l., coniferous and broad-leaved mixed forest, 1697 m a.s.l., and deciduous forest, 1818 m a.s.l.) in the Wuyishan National Nature Reserve, southeastern China. The scaling relationship between the N and P content and the linear regression relationship between the N:P ratio and N and P content were analysed. The leaf N and P content was significantly higher at the high-elevation site than at the low- or middle-elevation sites (P &lt; 0.001). The N and P content followed a power-law relationship with similar scaling slopes between organs. The N (common slope, 1.13) and P (common slope, 1.03) content isometrically covaried among leaves, twigs and roots. The scaling exponents of the N–P relationship were not significantly different from 1.0 in all organs, with a common slope of 1.08. The scaling constants of N–P decreased significantly (P &lt; 0.05) from the highest value in fine roots (β = 1.25), followed by leaves (β = 1.17), to the lowest value in twigs (β = 0.88). Standardized major axis (SMA) analyses and comparisons of 95 % confidence intervals also showed that the numerical values of the scaling slopes and the scaling constants did not differ regardless of elevation. The N content, but not the P content, accounted for a large proportion of the variation in the N:P ratio in leaves (N:P and N: r2 = 0.31, F = 33.36, P &lt; 0.001) and fine roots (N:P and N: r2 = 0.15, F = 10.65, P &lt; 0.05). In contrast, the N:P ratio was significantly related to both the N and P content in the twigs (N:P and N: r2 = 0.20, F = 17.86, P &lt; 0.001; N:P and P: r2 = 0.34, F = 35.03, P &lt; 0.001, respectively). Our results indicate that different organs of subtropical woody plants share a similar isometric scaling relationship between their N and P content, providing partial support for the PES hypothesis. Moreover, the effects of the N and P content on the N:P ratio differ between metabolic organs (leaves and fine roots) and structural organs (twigs), elucidating the stoichiometric regulatory mechanism of different organs.
Kidney transplantation outcomes from elderly donors after circulatory death: a comparison with elderly brain-dead donors
Authors: Buxeda Anna , Velis Gonzalo , Arias-Cabrales Carlos , Zapatero Ana , Burballa Carla , Redondo-Pachón Dolores , Mir Marisa , Crespo Marta , Pascual Julio , Pérez-Sáez María José 
Published: May 2020

Abstract

Background
The use of kidneys from elderly controlled donation after circulatory death (cDCD) donors has increased significantly in recent years. Concerns about outcomes achieved with these elderly cDCD kidneys have arisen. We aimed to compare outcomes from elderly cDCD kidney transplant recipients (KTrs) and elderly donation after brain death donors (DBDs) in KTrs.

Methods
We conducted a single-centre retrospective study including 87 cDCD-KTrs (46 from donors ≥65 years of age and 41 from &lt;65 years) and 126 DBD-KTrs from donors ≥65 years of age from 2013 through 2017). Young cDCD-KTrs were used as controls. The median follow-up was 27.1 months for all cDCD-KTrs and 29.7 months for DBD-KTrs ≥65 years of age.

Results
Donors &gt;65 years of age represented more than half of our global cDCD cohort (52.9%). KTs from elderly cDCDs had similar rates of delayed graft function, primary non-function and vascular complications compared with young cDCD-KTrs and elderly DBD-KTrs. Short and medium-term graft survival from elderly cDCD kidneys are excellent and are comparable to those from young cDCD and elderly DBD kidneys (90% young cDCD versus 88% elderly cDCD versus 80% elderly DBD at 36 months, P = 0.962 and 0.180, respectively). Although recipients from cDCDs ≥65 years of age showed lower 3-year patient survival (78% versus 87% in elderly DBD-KTrs; P = 0.01), recipient age was the only determinant of patient survival [hazard ratio 1.10 (95% confidence interval 1.02–1.17); P &lt; 0.01], without any influence of donor characteristics.

Conclusions
The use of kidneys from elderly cDCDs is increasing in Spain. Short- and medium-term graft outcomes are similar when comparing kidneys from elderly cDCDs and DBDs. Recipient age is the only determinant of patient survival. Additional studies are needed to assess long-term outcomes.
MaizeCUBIC: a comprehensive variation database for a maize synthetic population
Authors: Luo Jingyun , Wei Chengcheng , Liu Haijun , Cheng Shikun , Xiao Yingjie , Wang Xiaqing , Yan Jianbing , Liu Jianxiao 
Published: May 2020

Abstract
MaizeCUBIC is a free database that describes genomic variations, gene expression, phenotypes and quantitative trait locus (QTLs) for a maize CUBIC population (24 founders and 1404 inbred offspring). The database not only includes information for over 14M single nucleotide polymorphism (SNPs) and 43K indels previously identified but also contains 660K structure variations (SVs) and 600M novel sequences newly identified in the present study, which represents a comprehensive high-density variant map for a diverse population. Based on these genomic variations, the database would demonstrate the mosaic structure for each progeny, reflecting a high-resolution reshuffle across parental genomes. A total of 23 agronomic traits measured on parents and progeny in five locations, where are representative of the maize main growing regions in China, were also included in the database. To further explore the genotype–phenotype relationships, two different methods of genome-wide association studies (GWAS) were employed for dissecting the genetic architecture of 23 agronomic traits. Additionally, the Basic Local Alignment Search Tool and primer design tools are developed to promote follow-up analysis and experimental verification. All the original data and corresponding analytical results can be accessed through user-friendly online queries and web interface dynamic visualization, as well as downloadable files. These data and tools provide valuable resources on genetic and genomic studies of maize and other crops.
Case report of anterior ST-elevation myocardial infarction in a patient with coronavirus disease-2019
Authors: Fischer Quentin , Darmon Arthur , Ducrocq Grégory , Feldman Laurent 
Published: May 2020

Abstract

Background
Coronavirus disease-2019 (COVID-19) is an infectious disease appeared in China in December 2019 and, since then, has spread worldwide at a rapid pace.

Case summary
A patient with COVID-19 was hospitalized in our institution for a diabetic foot ulcer and presented afterwards a pulmonary oedema and concomitant anterior ST-segment elevation myocardial infarction. We report here on the initial presentation, coronary care and intervention, and clinical course of this patient.

Discussion
Emergent percutaneous coronary intervention is feasible and safe in COVID-19 patients but requires a multidisciplinary effort involving caregivers from infectious disease, intensive care, and cardiology teams.
Lifetime cancer prevalence and life history traits in mammals
Authors: Boddy Amy M , Abegglen Lisa M , Pessier Allan P , Aktipis Athena , Schiffman Joshua D , Maley Carlo C , Witte Carmel 
Published: May 2020

Abstract

Background
Cancer is a common diagnosis in many mammalian species, yet they vary in their vulnerability to cancer. The factors driving this variation are unknown, but life history theory offers potential explanations to why cancer defense mechanisms are not equal across species.

Methodology
Here we report the prevalence of neoplasia and malignancy in 37 mammalian species, representing 11 mammalian orders, using 42 years of well curated necropsy data from the San Diego Zoo and San Diego Zoo Safari Park. We collected data on life history components of these species and tested for associations between life history traits and both neoplasia and malignancy, while controlling for phylogenetic history.

Results
These results support Peto’s paradox, in that we find no association between lifespan and/or body mass and the prevalence of neoplasia or malignancy. However, a positive relationship exists between litter size and prevalence of malignancy (P = 0.005, Adj. R2 = 0.212), suggesting that a species’ life history strategy may influence cancer vulnerabilities. Lastly, we tested for the relationship between placental invasiveness and malignancy. We find no evidence for an association between placental depth and malignancy prevalence (P = 0.618, Adj. R2 = 0.068).

Conclusions
Life history theory offers a powerful framework to understand variation in cancer defenses across the tree of life. These findings provide insight into the relationship between life history traits and cancer vulnerabilities, which suggest a trade-off between reproduction and cancer defenses.

Lay summary
Why are some mammals more vulnerable to cancer than others? We test whether life history trade-offs may explain this variation in cancer risk. Bigger, longer-lived animals do not develop more cancer compared to smaller, shorter-lived animals. However, we find a positive association between litter size and cancer prevalence in mammals.
Seismoelectromagnetic effects associated with the 2017 February 15 Veracruz earthquake (Mw = 4.8)
Authors: Rodríguez-Pérez Quetzalcoatl , Zúñiga F Ramón , Márquez-Ramírez Víctor H , Corbo-Camargo Fernando 
Published: May 2020

SUMMARYIn this study, we investigated correlations between electromagnetic and seismic signals of the 2017 February 15 Veracruz, Mexico, earthquake (Mw = 4.8). We carried out a time–frequency misfit analysis based on the continuous wavelet transform in order to compare electric, magnetic and seismic records accurately. This analysis was performed for horizontal and vertical components separately. Our results from time–frequency misfit and goodness-of-fit criteria confirm the general similarity between seismic and electromagnetic signals both in frequency and time. Additionally, we studied the behaviour of peak amplitudes of seismoelectromagenetic records as a function of magnitude and distance. Our observations are in good agreement with previous studies, confirming scaling with magnitude and attenuation with distance. Radiated seismic energy estimations were performed with two methods: integration of velocity records and empirical Green function, respectively. Estimated energy magnitudes (4.35 &lt; Me &lt; 4.98) are consistent with reported seismic magnitudes for this event. We propose a method for determining electric and magnetic coseismic energies based on the concept of energy flux as implemented in the frequency domain by the integration of electromagnetic records. The calculated energies showed that the radiated seismic energy is much higher than the electric and magnetic energies.
Early deficits in olfaction are associated with structural and molecular alterations in the olfactory system of a Huntington disease mouse model
Authors: Laroche M , Lessard-Beaudoin M , Garcia-Miralles M , Kreidy C , Peachey E , Leavitt B R , Pouladi M A , Graham R K 
Published: May 2020

AbstractOlfactory dysfunction and altered neurogenesis are observed in several neurodegenerative disorders including Huntington disease (HD). These deficits occur early and correlate with a decline in global cognitive performance, depression and structural abnormalities of the olfactory system including the olfactory epithelium, bulb and cortices. However, the role of olfactory system dysfunction in the pathogenesis of HD remains poorly understood and the mechanisms underlying this dysfunction are unknown. We show that deficits in odour identification, discrimination and memory occur in HD individuals. Assessment of the olfactory system in an HD murine model demonstrates structural abnormalities in the olfactory bulb (OB) and piriform cortex, the primary cortical recipient of OB projections. Furthermore, a decrease in piriform neuronal counts and altered expression levels of neuronal nuclei and tyrosine hydroxylase in the OB are observed in the YAC128 HD model. Similar to the human HD condition, olfactory dysfunction is an early phenotype in the YAC128 mice and concurrent with caspase activation in the murine HD OB. These data provide a link between the structural olfactory brain region atrophy and olfactory dysfunction in HD and suggest that cell proliferation and cell death pathways are compromised and may contribute to the olfactory deficits in HD.