bluuebunny/crossref_metadata_2025_split huggingface dataset:
Primary School Teachers and Learning Media in the Era of Education 4.0
Authors: Laisa Zulaeha 
Published: December 2019

Abstract
Education era 4.0 demands teachers to be more competent since the nation’s progress is determined by education quality, particularly in the primary education level. However, education in Indonesia, especially in Eastern Indonesia, is very apprehensive due to limited facilities and infrastructure as one of the factors that trigger the low quality of education and human resources. The information technology utilization, specifically computer applications for primary school teachers, has not yet run well and equal. Other educational levels that still implement conventional learning that is no longer able to fulfil educational needs for complex societies require innovations and media to address this issue. A preliminary survey in several primary schools in Gorontalo revealed that teachers wanted to use computer applications as the learning media. The training of utilizing computer applications for primary school teachers is not the only solution to improve students’ comprehension about learning topics. A good cooperation between related institutions or agencies is required to produce teachers who understand technology in education era 4.0. Higher education institutions that will produce quality teachers should arrange a course curriculum that highly influences students as the teacher candidate. School members should also provide supporting facilities for an effective learning process.
Exploration on Ethnomathematics Phenomena in Kudus Regency and its Optimization in the Mathematics Learning
Authors: Zaenuri  , Cahyono A N , Dwidayanti N 
Published: December 2019

Abstract
This study aims to explore the ethnomathematics phenomena in Kudus, a regency in Central Java province, Indonesia, and its optimization in mathematics learning. We explored the cultural sites and customs of the Kudus community, including the traditional clothing, traditional food, local units, and children’s traditional games. We conducted some observations, interviews, documentation, and literature review to collect data, and then the data were analysed descriptively. The results suggest that there are various forms of ethnomathematics found in Kudus Regency. The mosque of Menara Kudus and the Kudus traditional house consist of many mathematical concepts such as planar figures and solid figures. The embroidery designs in the Kudus traditional clothing and some traditional equipment also show many figures, such as caping which has a cone shape. Furthermore, we also found some local units used in daily life, such as sa-unting, sa-ombyok, and se-tandan which each represents a different number of things. The children’s traditional game, gundu, was also interesting and potential to be used in mathematics learning. Various forms of ethnomathematics can be optimized to improve the quality of mathematics learning using problem-based learning and project-based learning models.
Realistic Mathematics Education (RME) Approach to Enhance Mathematical Cognition of Elementary School Students
Authors: Irdawati A , Marlina R , Marlina  , Murni I 
Published: December 2019

Abstract
Mathematical cognition is a fundamental skill in studying mathematics at the elementary school level. Teaching mathematics at school must aim to enhance mathematics cognition and can be used to solve real-life problems. This study observed the increase in students’ mathematics cognition after implementing RME approach in the classroom. This study used a quasi-experimental design. The subject is 58 elementary school students at Agam and Bukittinggi. Data analyzed using SPSS statistic program. The research showed that there is a significant difference in students’ mathematics cognition after learning with the Realistic Mathematics approach. It can be assumed that the use of Realistic Mathematics Education approach enhanced students’ mathematics cognition and encourage students to engage actively in the teaching and learning of mathematics. Thus, Realistic Mathematics Education approach is an appropriate method to enhance the quality of teaching and learning process.
Delta, Diamond, and Fighter Kites Project in Geometry Class
Authors: Widodo S , Turmudi T , Rosjanuardi R 
Published: December 2019

Abstract
This research aims to develop teaching materials with didactical phenomenology in math education with the project of making Delta, Diamond and Fighter kites. This research carried out experiments conducted on various types of shapes to make Delta, Diamond, and the most ideal fighter kites based on theoretical of science. In addition, this study tested various materials to make kites. The results of the experiment show that the most ideal shape of the kite in order are, square, circle, rhombus, trapezoid, square, isosceles triangle and kite. While plastic is the most ideal material for making kites that depend on the mass of the material. with the phenomenon of the kites project can be used as teaching material in geometry class.
Population dynamics and feeding habits of Euthynnus affinis, Auxis thazard, and Auxis rochei in South Coast of East Java waters
Authors: Lelono Tri Djoko , Bintoro Gatut 
Published: December 2019

Abstract
Little tuna landed there are three types: Euthynnus affinis, Auxis thazard, Auxis rochei. The analysis shows the condition of the resource indicates the condition Over Exploited. Length and weight relationship tuna (Auxis thazard) total positive allometric Length of first caught fish (Lc) of 27.08 cm, The length at first maturity (Lm) 28.39 cm Lt
= 35.40 {1 − e
−0.58(t + 0.26)}, total mortality (Z) = 4.08 per year, Fishing mortality (F) = 2.91 per year, natural mortality (M) = 1.17 per year, with the Exploitation rate (E) = 0.71 per year which, if E> 0.5 is overfishing. The relationship between length and weight of Tuna (Euthynnus affinis) was unsexed W = 0.1078 L 3.48. The value of Lc and Lm were 37.51 cm, 38.43 cm, and 40.17 cm respectively. Von Bertalanffy growth Lt
= 72.50 {1 − e
−0.11(t +0.27)} equation of this study was. The rate of total mortality (Z), natural (M), and catch (F) were respectively 0.56, 1.74 and 0.01. The peak season tuna catch in PPN Prigi was occurred in September (515.865%) with the low season occurred in January (1.244%). As for UPT PP Muncar, the peak season cob arrest took place in March (316.315%) with famine in February (6,651%). Little Tuna food was consist of 7 groups, namely: small fish, shrimp, Ascomycota, Chloromonadophyta, Chyanophyta, Chrysophyta, and Chlorophyta.
Exploitation level of shortfin scads fish (Decapterus macrosoma) caught with purse seine in Bulukumba waters, South Sulawesi
Authors: Asni Andi , Ihsan  , Najamuddin  , Tauhid Mohammad 
Published: December 2019

Abstract
Shortfin scads fish is a pelagic fish that has an important role in the economic sector of fishermen in South Sulawesi waters. In the last five years, there has been a decline in catch resulting from uncontrolled exploitation. However, there is no control instrument for the exploitation of shortfin scads fish to date, hence, there is a concern that the sustainability of shortfin scads fish resources will be threatened. This study aimed to determine the exploitation level of shortfin scads fish (Decapterus macrosoma) caught with a purse seine. The research was carried out in the waters of Bulukumba Regency, South Sulawesi, from April to August 2018. The method used was direct observation. Data on catches were recorded based on the fish species caught at the time of hauling. Data time series of shortfin scads fish and effort data tabulated from fisheries statistical data. Maximum sustainable yield (MSY) of shortfin scads fish in Bulukumba waters in 2016-2017 exceeded the maximum sustainable production (MSY) of 10,739 tons/year (overfishing). The regression analysis between effort and CPUE Schafer model, showed the estimation parameter intercept value (a) 42.38620491, slope (b) -0.041823411. The equality relationship interpreted as the fishing effort for f units per year will reduce the production value (CPUE) of shortfin scads fish by 42,386 tons/year. The estimation of sustainable potential value (MSY) of shortfin scads fish in Bulukumba waters was 10,739 tons/year, while the optimum fishing effort (fopt) was 507 units/year and the total allowable catch (TAC) 8,591 tons/year.
Law enforcement for fisheries crime (illegal fishing) through a transcendental approach
Authors: Hanafi Muhammad Amin , Absori  , Dimyati Khuzaifah 
Published: December 2019

Abstract
The sea of North Maluku province geographically faced to the Philippine sea and it is a potential zone with the availability of export-grade fisheries resources. Criminal penalties in the fisheries sector are mostly cumulative, both aimed at offenses of crimes and offenses. Law Number 45 of 2009 concerning Amendments to Law Number 31 Year 2004 concerning Fisheries, states that what is called the practice of illegal fishing can be classified as: Article 84 paragraph (1), paragraph (2), paragraph (3), Article 85, Article 92, Article 93, and Article 94). In the case of being caught red-handed, by the authorities over which Fisheries Law No. 45 of 2009. The next problem in law enforcement is the issue of legal norms where the Act that is implemented still gives a gap for the occurrence of abuse of authority. Also, the next problem is culture in law enforcement and in society. The transcendental approach emphasizes the importance of this morality problem; Second, in terms of legal norms, it is necessary to formulate legal norms that are more deterrent to perpetrators of crimes and law enforcement officers who violate; and, third, in the matter of legal culture, it is necessary to change the legal culture which originally emphasized rational values into legal behavior based on transcendental values in Segulaha adat.
Repair technique for wooden fishing boats using fibreglass
Authors: Sunardi  , Sukandar  , Sulkhani Y E , Rahman M A 
Published: December 2019

Abstract
Almost all fishing boats operating in Indonesia are made of wood. The hulls of wooden boats are exposed to heat everyday and float in seawater, a combination which can cause parts of the boat’s hull to be quickly damaged. One type of damage that occurs all the time is the attachment of fouling organisms (animals and marine plants) which encrust the hull of the boat; therefore, the hull should be careened once a week, as otherwise resistance will increase, reducing the speed and increasing fuel consumption. Fibreglass is a composite material which is strong, weather resistant and easily formed. This composite material can be applied as a coating material for wooden boats to overcome weathering and repair leaks. This applied research directly practiced a method to repair wooden boats by coating with 2 layers of fibreglass. The stages included the removal of all fouling and other coatings (e.g. paint) and contamination, drying and repairs, coating with two layers of fibreglass, followed by finishing. The results showed that the use of fibreglass to repair wooden boats can be a very effective technique with the following advantages: boards of boat hulls that are immersed in water do not decay, so that there is less likelihood of leaks developing; the technique reduces outlay because maintenance costs of fishing boats are reduced; boat maintenance will be easier because it is only necessary to clean the fouling attached to the hull; longer boat life and greater hull strength, as protection with fibreglass can strengthen old wooden construction elements and enable them to last longer.
What Motivates Nurses to Exercise? Determinants of Physical Activity Among Canadian Nurses Using Self-Determination Theory
Authors: Zhang Karen M , Tulloch Heather E , Brunet Jennifer , Pipe Andrew L , Reid Robert D , Prince Stephanie A , Reed Jennifer L 
Published: December 2019

AbstractBackgroundNurses’ suboptimal physical activity (PA) levels place them at high risk for cardiovascular diseases. Little is known about the motivational factors that influence their PA behavior.PurposeThis study drew on the Self-Determination Theory (SDT) to investigate whether associations between nurses’ levels of mood disturbance, psychological need satisfaction (competence, autonomy, and relatedness), and self-determined motivation predict levels of objectively assessed PA.MethodsA total of 363 nurses recruited from 14 hospitals in the Champlain region of Ontario, Canada, wore ActiGraph GT3X accelerometers and completed standardized questionnaires assessing sociodemographic and work characteristics, mood disturbance, and SDT variables. Levels of moderate-to-vigorous intensity PA (MVPA) were measured in minutes/week in bouts ≥10 min. Data were analyzed using path analysis and multiple mediational model.ResultsThe model predicting MVPA showed good fit to the data, χ 2 (4, n = 363) = 7.82, p = .10; comparative fit index = .991; Tucker–Lewis Index = .967; root mean square error of approximation = .051. Higher mood disturbance was associated with lower perceived competence (β = −.29, p = .002), autonomy (β = −.29, p = .002), and relatedness (β = −.19, p = .002). Lower perceived competence (β = .46, p = .003) and autonomy (β = .14, p = .011), as well as higher mood disturbance (β = −.16, p = .016), were associated with less self-determined motivation for PA. Lower self-determined motivation was associated with lower levels of MVPA among nurses.ConclusionsInterventions targeting low mood, as well as perceived competence and autonomy in exercise, may promote MVPA among nurses and reduce cardiac risk.
Genetic Factors in Acute Myeloid Leukemia With Myelodysplasia-Related Changes
Authors: Fang Hong , He Rong , Chiu April , Viswanatha David S , Ketterling Rhett P , Patnaik Mrinal S , Reichard Kaaren K 
Published: December 2019

Abstract

Objectives
Acute myeloid leukemia with myelodysplasia-related changes (AML-MRC) is a heterogeneous category with a broad range of underlying genetic abnormalities. We investigated the significance of genetic factors in a large series of AML-MRC cases.

Methods
The morphologic findings, genetic data, and patient outcomes were assessed in 186 AML-MRC cases.

Results
The median overall survival (OS) was dismal in AML-MRC patients (median, 7.6 months; 95% confidence interval, 5-10.6 months). Karyotypically normal cases and cytogenetically abnormal cases without myelodysplastic syndrome (MDS)-related cytogenetic abnormalities showed similar OS, significantly better than cases carrying MDS-related cytogenetic abnormalities. MDS-related cytogenetic abnormalities, monosomal or complex karyotype, and history of MDS or myelodysplastic/myeloproliferative neoplasm were all associated with dismal outcome.

Conclusions
AML-MRC predicts a poor prognosis. Our study supports the finding that the genetic profile plays a key role in determining prognosis in AML-MRC as defined according to the World Health Organization revised fourth edition (2017) diagnostic criteria.
The determination of common anabolic steroid and stimulants in nutritional supplements by HPLC-DAD and LC-MS
Authors: Al-Khadhra Riyadh Salih 
Published: December 2019

Abstract
A high-performance liquid chromatography method employing a diode-array detector and mass spectrometry detector was developed, validated and implemented for determining Synephrine, Caffeine, Clenbuterol, Nandrolone, Testosterone and Methylhexaneamine in Nutritional supplements. The use of Nutritional supplements is widespread. Hazards relating to concentration, composition, individual contaminants, supplements interactions as well as positive doping results among athletes present increasing concerns regarding nutritional supplement consuming. The proposed method was validated according to the International Conference on the Harmonization of the Technical Requirements for Registration of Pharmaceuticals for Human Use (ICH) standards. The proposed method observed to be accurate, linear, precise, sensitive, required minimal sample preparation and uncomplicated mobile phase. The implementation of the proposed method on nine commercial supplements shows that inaccurate labeling for some supplements regarding the concentration of the ingredients.
Alternative Silvicultural Approaches to Managing Jack Pine Plantations for Endangered Species Habitat and Forest Products
Authors: Gadoth-Goodman Daphna , Rothstein David E 
Published: December 2019

AbstractSince the early 1980s, ca 1,550 hectares (3,800 ac) of high-density jack pine (Pinus banksiana) plantations have been established annually in northern Lower Michigan to serve as habitat for the federally endangered Kirtland’s warbler (KW; Setophaga kirtlandii). Because these plantations do not appear capable of producing merchantable sawlogs by their planned 50-year harvest age, we investigated the potential to implement reduced rotation lengths in these stands to produce biomass and/or pulpwood. We used space-for-time substitution to assess biomass and volume accrual over time, using our own locally derived allometric biomass equations. The predicted optimal rotation age for biomass was 20 years, and the predicted optimal rotation age for pulpwood volume was 28 years. We compared the total land area required for management under these rotation scenarios to continue establishing 1,550 hectares (3,800 ac) of KW habitat annually. Management on the current 50-year cycle requires ca 77,500 hectares (191,500 ac). Management for pulpwood would reduce this to ca 43,400 hectares (107,250 ac), and management for biomass would require ca 31,000 hectares (76,600 ac). Our results suggest that rotation lengths in these plantations could be substantially reduced, allowing for reductions in the total land area dedicated to warbler habitat, allowing for diversification of management at the landscape scale.
Combination Therapy of Adalimumab With an Immunomodulator Is Not More Effective Than Adalimumab Monotherapy in Children With Crohn’s Disease: A Post Hoc Analysis of the PAILOT Randomized Controlled Trial
Authors: Matar Manar , Shamir Raanan , Turner Dan , Broide Efrat , Weiss Batia , Ledder Oren , Guz-Mark Anat , Rinawi Firas , Cohen Shlomi , Topf-Olivestone Chani , Shaoul Ron , Yerushalmi Baruch , Ben-Horin Shomron , Assa Amit 
Published: December 2019

Abstract

Background
The PAILOT trial was a randomized controlled trial aimed to evaluate proactive vs reactive therapeutic drug monitoring in children with Crohn’s disease (CD) treated with adalimumab. Our aim in this post hoc analysis of the PAILOT trial was to assess the efficacy and safety of adalimumab combination treatment in comparison with monotherapy at week 72 after adalimumab induction.

Methods
Participants were children 6–17 years old, biologic naïve, with moderate to severe CD, who responded to adalimumab induction at week 4. Patients receiving immunomodulators at baseline maintained a stable dose until week 24; patients could then discontinue immunomodulators. At each visit, patients were assessed for disease index, serum biomarkers, fecal calprotectin, adalimumab trough concentration, and anti-adalimumab antibodies.

Results
Out of the 78 patients (29% female; mean age, 14.3 ± 2.6 years), 34 patients (44%) received combination therapy. During the study period, there was no significant difference in the rates of sustained corticosteroid-free clinical remission (25/34, 73%, vs 28/44, 63%; P = 0.35) or sustained composite outcome of clinical remission, C-reactive protein ≤0.5 mg/dL, and calprotectin ≤150 µg/g (10/34, 29%, vs 14/44, 32%; P = 0.77) between the combination group and the monotherapy group, respectively. Clinical and biological outcomes did not differ between the proactive and reactive subgroups within the combination and monotherapy groups. Adalimumab trough concentrations and immunogenicity were not significantly different between groups. The rate of serious adverse events was not significantly different between groups but was numerically higher in the monotherapy group.

Conclusions
Combination therapy of adalimumab and an immunomodulator was not more effective than adalimumab monotherapy in children with CD (ClinicalTrials.gov No. NCT02256462).
Inhibitory Control of Basolateral Amygdalar Transmission to the Prefrontal Cortex by Local Corticotrophin Type 2 Receptor
Authors: Yarur Hector E , Vega-Quiroga Ignacio , González Marcela P , Noches Verónica , Thomases Daniel R , Andrés María E , Ciruela Francisco , Tseng Kuei Y , Gysling Katia 
Published: December 2019

Abstract

Background
Basolateral amygdalar projections to the prefrontal cortex play a key role in modulating behavioral responses to stress stimuli. Among the different neuromodulators known to impact basolateral amygdalar-prefrontal cortex transmission, the corticotrophin releasing factor (CRF) is of particular interest because of its role in modulating anxiety and stress-associated behaviors. While CRF type 1 receptor (CRFR1) has been involved in prefrontal cortex functioning, the participation of CRF type 2 receptor (CRFR2) in basolateral amygdalar-prefrontal cortex synaptic transmission remains unclear.

Methods
Immunofluorescence anatomical studies using rat prefrontal cortex synaptosomes devoid of postsynaptic elements were performed in rats with intra basolateral amygdalar injection of biotinylated dextran amine. In vivo microdialysis and local field potential recordings were used to measure glutamate extracellular levels and changes in long-term potentiation in prefrontal cortex induced by basolateral amygdalar stimulation in the absence or presence of CRF receptor antagonists.

Results
We found evidence for the presynaptic expression of CRFR2 protein and mRNA in prefrontal cortex synaptic terminals originated from basolateral amygdalar. By means of microdialysis and electrophysiological recordings in combination with an intra-prefrontal cortex infusion of the CRFR2 antagonist antisauvagine-30, we were able to determine that CRFR2 is functionally positioned to limit the strength of basolateral amygdalar transmission to the prefrontal cortex through presynaptic inhibition of glutamate release.

Conclusions
Our study shows for the first time to our knowledge that CRFR2 is expressed in basolateral amygdalar afferents projecting to the prefrontal cortex and exerts an inhibitory control of prefrontal cortex responses to basolateral amygdalar inputs. Thus, changes in CRFR2 signaling are likely to disrupt the functional connectivity of the basolateral amygdalar-prefrontal cortex pathway and associated behavioral responses.
Eigenvector Convergence for Minors of Unitarily Invariant Infinite Random Matrices
Authors: Najnudel Joseph 
Published: December 2019

Abstract
In [10], Pickrell fully characterizes the unitarily invariant probability measures on infinite Hermitian matrices. An alternative proof of this classification is given by Olshanski and Vershik in [9], and in [3] Borodin and Olshanski deduce from this proof that under any of these invariant measures, the extreme eigenvalues of the minors, divided by the dimension, converge almost surely. In this paper, we prove that one also has a weak convergence for the eigenvectors, in a sense that is made precise. After mapping Hermitian to unitary matrices via the Cayley transform, our result extends a convergence proven in our paper with Maples and Nikeghbali [6], for which a coupling of the circular unitary ensemble of all dimensions is considered.