bluuebunny/crossref_metadata_2025 huggingface dataset:
UPAYA MENINGKATKAN KEMAMPUAN GURU DALAM MENYUSUN PERANGKAT PEMBELAJARAN MELALUI SUPERVISI KLINIS DI SEKOLAH BINAAN KECAMATAN CERENTI
Authors: Yurnalis Yurnalis
Published: March 2019

This research is based on the weakness of teachers in preparing the learning tools in the school assisted byCerenti Districts researcher Kuantan Singingi. The purpose of this study is to improve the quality of learningtools created by teachers in districts Cerenti. This study used a school action research design consisting of 2cycles. Each cycle consists of 4 stages namely, planning, implementation, observation and reflection. From theresult of research, Primary School 005 Sikakak in cycle I got the percentage value of 50% after the second cycleincreased to 85%, the increase of 35 points. Primary School 006 Pesikaian, in cycle I got the percentage valueof 65% and increased to 90% in cycle II, the increase of 25 points. Primary School 008 Kompe Berangin, in thefirst cycle got a value of 75% and in the second cycle increased to 90%, an increase of 15 points. PrimarySchool 010 Tanjung Medan, in cycle I got a value of 65% and increased to 85% in cycle II, the increase of 20points. Primary School 011 Pulau Panjang, in cycle I got the percentage value of 80% and in the second cycleincreased to 95%, the increase of 15 points. From the description of the data above can be concluded that, withclinical supervision can improve the quality of learning tools made teachers in Primary School Cerenti District.
MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA KELAS III MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE (TPS) DI SD NEGERI 018 RANTAU SIALANG KECAMATAN KUANTAN MUDIK
Authors: Arni Arni
Published: March 2019

This research was motivated by the low level of mathematics learning outcomes of class III SD Negeri 018Rantau Sialang. The purpose of this study was to improve student mathematics learning outcomes. The design ofthis study uses classroom action research which consists of two cycles. From the data analysis in the first cycle,the percentage of teacher activity value was 66.6% in the good category and increased in the second meeting to75% in the good category. In the second cycle the first meeting the percentage of teacher activity was 83.3%very good and at the second meeting increased to 87.5% in the very good category. The percentage of studentactivity in the first cycle was 62.5% with good categories and at the second meeting increased to 70.8% withgood categories. In the second cycle of the first meeting the percentage of student activity was 87.5% in the verygood category and increased in the second meeting to 91.6% in the very good category. Student learningoutcomes in the baseline score of students completeness is 44.4%, completeness percentage in cycle I is 66.6%,and the percentage of completeness in cycle II is 88.8%. It can be concluded that by applying the cooperativelearning model type think pair share (TPS) can improve the mathematics learning outcomes of class III SDNegeri 018 Rantau Sialang
PENERAPAN STRATEGI MENULIS TERBIMBING UNTUK MENINGKATKAN KETERAMPILAN MENGARANG DESKRIPSI SISWA KELAS V SDN 38 PEKANBARU
Authors: Oktari Cici , Kurniaman Otang , N. Lazim
Published: March 2019

This research is motivated by the low skill of writing descriptions of 5th-grade students of SD Negeri 38 Pekanbaru with 37 students. It is known that no highly skilled students, 5 skilled students, 9 students are quite skilled and 23 students are less skilled in writing descriptions. This type of research is classroom action research conducted in two cycles, each cycle consisting of two meetings and one daily test. This study aims to improve the skills of writing student descriptions. The data in this study were obtained through observation and tests. The data analysis technique used is the analysis of teacher and student activities as well as analysis of skills in writing descriptions. The results of the analysis of teacher activities in the cycle I of the first meeting with a percentage of 75% and the second meeting 79%, while in the cycle II the first meeting with a percentage of 83% and the second meeting 88%. Activities of students in the first cycle I the first meeting with a percentage of 71% and the second meeting 75%, while in the cycle II the first meeting was 79% and the second meeting 83%. The results of the analysis of the skills of writing student descriptions can be seen from before the action carried out the average value of students obtained at 49.51, after the action in the cycle I increased to 75.11 and the cycle II increased to 81.65. From the results of this study it can be concluded that the application of guided writing strategies can improve the skills of writing descriptions of 5th-grade students of SD Negeri 38 Pekanbaru.
ANALISIS KEMAMPUAN MENULIS KALIMAT MAJEMUK SISWA KELAS VI SD NEGERI 105 PEKANBARU
Authors: Hayati Munira , Kurniaman Otang , Zufriady Zufriady
Published: March 2019

This research is motivated by the problem of students not being able to place precisely the conjunctions in writing compoundsentences, and students have not been able to make compound sentences according to subject criteria, prediction, objects,and information. The purpose of this study was to describe the ability of sixth grade students of SD Negeri 105 Pekanbaru towrite compound sentences. This research has been carried out in July 2018 which uses descriptive quantitative methods withresearch subjects consisting of 142 students. Data collection techniques use test techniques, by giving 10 questions of essayquestions as an instrument. The results of the ability to write compound sentences for grade VI students from 142 studentsshowed 47 students who were categorized as very capable with a percentage of 33.09%, 22 students who were able to get acategory with a percentage of 15.50%, 34 students got enough categories with percentages 23.94% and 39 students got theless category with a percentage of 27.46%. Overall, the sample of 142 students obtained an average score of 67.61 in thecategory of quite capable. This shows that the ability to write compound sentences for students in grade VI of SD Negeri 105Pekanbaru as a whole has been categorized as quite capable.
PENERAPAN PEMBELAJARAN MATEMATIKA REALISTIK (PMR) UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA KELAS I SD NEGERI 3 TALANG MANDI
Authors: Ismayenti Ismayenti
Published: March 2019

This research is motivated by the results of students' mathematics learning is still low. This study was conducted on studentsof class I of SD Negeri 3 Talang Mandai. This study aims to improve student mathematics learning outcomes throughrealistic mathematic education (RME). From the analysis of data from observations of teacher activity activities, in cycle Iobtained a percentage value of 62.5 in the poor category, at the second meeting increased to 79.16 with sufficient categories,meeting three gained a percentage value of 87.5 in the good category, while meeting four increased to 95.83 in the categoryvery good. In terms of student activity, in cycle I, the percentage score was 58.33 in the less category, at the second meetingit increased to 70.83 with enough categories, the meeting of three cycles II, obtained a percentage value of 79.16 withenough categories, while the fourth meeting increased to 91.66 with very good category. For student learning outcomes, thebasic score, the average value of 56.5 class with less category. in the first cycle the average value of 65.5 class with enoughcategories. Cycle II, the average value of 90.5 grade with very good pesentase. From the data analysis, it can be concludedthat the realistic mathematic education (RME) which is applied to the learning process is very effective, this is evidenced bythe increase in student learning outcomes in class I of the SD Negeri 3 Talang Mandai.
PENGARUH KECANDUAN SISWA TERHADAP GAME ONLINE (STUDI TENTANG KEBIASAAN SISWA BERMAIN GAME ONLINE) DI SMP N 3 TELUK KUANTAN
Authors: Edrizal Edrizal
Published: March 2019

The type of research used is qualitative research using field research types, the subjects in the study were students of SMP N 3Teluk Kuantan. While the method of data collection uses observation and interview techniques to obtain the information needed,then analyzed and described in written form. The results of this study indicate that the effects that arise due to addiction playonline games for students who are addicted including: 1) more time spent at the computer or internet cafe with a longerduration. 2) time to play more so you can forget about their time to study. 3) lack of attention to the health condition of theirbody (staying up late). 4) causing a sense of laziness for school and a decrease in grades in school. That's some of the effectsthat can be caused if someone who is addicted to too much opium with online games. These effects seemed to makethemselves become abnormal people. Because someone who is addicted to online games feels they have failed to give goodservice to their lives.
PENGARUH PENDEKATAN PEMBELAJARAN TEKNIS TERHADAP HASIL BELAJAR KETERAMPILAN SEPAKBOLA
Authors: Fernando Ricky
Published: March 2019

This research is about to study the effectiveness of the technical learning approach to soccer skills learning outcomes. Theresults of this study is expected to serve as an alternative solution in order to improve the quality of learning soccer. Themethod used in this research is an experimental method with post-design design. The population in this research is thestudents of class XI SMA Labschool UPI Bandung as many as 60 students. The sampling technique used Purposive Samplingtechnique. Time of research is for 2 months, the number of treatment 18 times meeting, with frequency 1 week 3 times. Theauthor's chosen instrument is a soccer skill test. for high school students soccer skills test (early and final test of soccerskills) there are four that the author uses the test passing and stoping, heading, dribbling and shooting. Based on the resultsof the analysis it can be concluded: There is a significant influence of technical learning approaches to the results of learningsoccer skills.
PERILAKU MAKAN DAN KEJADIAN ANEMIA PADA MAHASISWI
Authors: . Safyanti , . Andrafikar
Published: March 2019

This study aims to determine the relationship of eating behavior with the incidence of anemia at the college level II Nutrition Study Program DIII Poltekkes Ministry of Health of the Republic of Indonesia Padang. This research is analytic with cross sectional design, which is in Poltekkes Kemenkes RI Padang in 2016. The research population is the second grader of Nutrition Study Program DIII Poltekkes Kemenkes RI Padang with the number of sample 48 people and taken by simple random. example. The incidence of anemia at the college level II DIII Nutrition Study Program is 50%, more than half female students have frequency of consumption of heme iron source, non heme iron, less. More than half of female students had a non-diverse source of non-haemed sources. Most students lacked protein intake, more than half had less vitamin C. There was a significant relationship between the frequency and amount of iron sources with the occurrence of anemia, but on iron sources there was no significant association. Means between the frequency and amount of nonheme iron sources with the occurrence of anemia, there was no significant association between the types of nonheme iron sources and the occurrence of anemia. There is a significant relationship between protein intake and vitamin C with the incidence of anemia. Expected to increase consumption of foods high in iron, especially the source of iron heme and non heme iron and accompanied by eating food sources of vitamin C..
HERMITE-HADAMARD TYPE INEQUALITIES FOR GENERALIZED (k-h)-FRACTIONAL INTEGRALS
Authors: AKKURT Abdullah , GIDERGELMEZ H. Fehmi , KILINC Seda , YILDIRIM Hüseyin
Published: March 2019

In this paper, the authors have obtained some new developments of Hermite- Hadamard type inequalities for generalized fractional integrals dened by Akkurt et al. [1]. With the help of this fractional integral denition, some new original results have been obtained, which include many studies in the literature.
The Problem of Messiah in the Mind of Semitic Religion
Authors: Manurung Pangeran
Published: March 2019

Broadly speaking, the subject of the Christology that is still worth talking about in the academic pulpit is the title "Messiah" carried by Jesus Christ. In general, the Judeo-Islamic community and some Christians are still dilemma in positioning Jesus, especially regarding the worthiness of Jesus Christ to be accepted as the Messiah. Placing Jesus Christ in the right place for all three of these great religions has proven to be no easy matter. Especially for Judeo-Islam, Christians generally accept Jesus Christ as the Messiah. On the contrary for Jews and Islam. Some Jews gave rise to a half-movement of Judaism and half-Christians in terms of seeing Jesus as the Messiah. Likewise with Islam. Here are some of the main problems. Keynote: Messiah, Jesus Christ, Semitic Religion.
Identification of suitable predictors for inter canine width: An anthropometric study
Authors: Kattamuri Vijay kanth , K Naimisha , Chandu Viswa Chaitanya
Published: March 2019

The aim of this study was to correlate the inter -canine width with four anatomical measures of vertical height of little finger, external ear, inter-canthal distance, and inter-alar width. A cross sectional study was conducted on 200 subjects belonging to the age group of 19-23 years, attending the outpatient department of Gitam Dental College, Andhra Pradesh, using systematic random sampling. Of the 200 subjects participated in the study, 124(62%) were females and the mean age of the study participants was 19.34±2.13 years. Inter-alar width was found to have significant positive correlation with inter-canine width. No significant correlations were observed between inter-canine width and the other variables, namely, inter-canthal distance, length of little finger, and the length of ear. Biometric ratio of 1.128 can be used to derive the inter-canine width from inter-alar width. The findings of this study can be used in concomitance with the clinician's judgement and patients' preferences. Key Words: Biometric ratio, Edentulism, Inter-alar width, Inter-canine width
Reliability Calculation for Dormant k-out-of-n Systems with Periodic Maintenance
Authors: Li James
Published: March 2019

In this paper, a dormant k-out-of-n systems redundancy calculation will be introduced. Dormant failure is a failure that cannot be detected when it occurs because of the nature of the failure characteristic. Therefore, a dormant failure becomes the blind point to the design for reliability and maintainability because of its inability to be detected. The most popular approach in detecting a dormant failure is to carry out a scheduled periodic inspection, test or maintenance activity. The scheduled periodic maintenance is applied to prevent and reduce the unexpected dormant failures that could lead to safety consequences, or costly corrective maintenance. This paper will introduce a methodology on how to calculate the reliability parameter such as Mean Time Between Failure (MTBF) for the dormant k-out-of-n redundant systems. The mathematical relationship between the effective MTBF and the scheduled periodic inspection/maintenance interval is also elaborated. Case studies are adopted to illustrate how to apply the developed reliability calculation methodology in the mass transit train reliability and safety design.
Inventory Modeling for Deteriorating Imperfect Quality Items with Selling Price Dependent Demand and Shortage Backordering under Credit Financing
Authors: Khanna Aditi , Gautam Prerna , Chandra K. Chandra K.
Published: March 2019

The production processes throughout the world aim at improving quality by introducing latest technologies so as to perform well in fierce competition. Despite this due to various unavoidable factors, most of the manufacturing processes end up with certain imperfections. Hence, all the items produced are not of perfect quality. The condition tends to be more susceptible while dealing with items of deteriorating quality; therefore an inspection process is must for screening good quality items from the ordered lot. Demand is assumed to be price dependent and it is represented by a constant price elasticity function. Also to endure with the rapid growth and turbulent markets, the suppliers try to engage and attract retailers through various gimmicks and one such contrivance is offering trade credit, which is proved to be an influential strategy for attracting new customers. In view of this, the present paper develops an inventory model for items of imperfect quality with deterioration under trade-credit policies with price dependent demand. Shortages are allowed and fully backlogged. A mathematical model is developed to depict this scenario. The aim of the study is to optimize the optimal order level, backorder level and selling price so as to maximize the retailer’s total profit. Findings are validated quantitatively by using numerical analysis. Sensitivity analysis is also performed so as to cater some important decision-making insights.
A Genetic Algorithm Based Hybrid Approach for Reliability-Redundancy Optimization Problem of a Series System with Multiple-Choice
Authors: Bhunia Asoke Kumar , Duary Avijit , Sahoo Laxminarayan
Published: March 2019

The goal of this paper is to introduce an application of hybrid algorithm in reliability optimization problems for a series system with parallel redundancy and multiple choice constraints to maximize the system reliability subject to system budget and also to minimize the system cost subject to minimum level of system reliability. Both the problems are solved by using penalty function technique for dealing with the constraints and hybrid algorithm. In this algorithm, the well-known real coded Genetic Algorithm is combined with Self-Organizing Migrating Algorithm. As special cases, both the problems are formulated and solved considering single component without redundancy. Finally, the proposed approach is illustrated by some numerical examples and the computational results are discussed.
Inventory Modeling for Imperfect Production Process with Inspection Errors, Sales Return, and Imperfect Rework Process
Authors: Khanna Aditi , Kishore Aakanksha , Jaggi Chandra K.
Published: March 2019

In real life, due to certain machine problems, process deterioration and many other factors, production processes deliver imperfect quality items. So, the effect of these defectives cannot be ignored in terms of ensuring good customer service. In order to sustain today’s cut-throat competition, rework process of defective items becomes a rescue to compensate for the imperfections present in the production system. The present model attempts to explore the traditional imperfect environment with a more practical approach by incorporating the concept of inspection errors, along with an imperfect rework process. By considering human errors as unavoidable, Type-I and Type-II errors are also incorporated in the study. To prioritize on the customer satisfaction level, Sales returns are given full price refunds. An analytical method is employed to maximize the expected total profit per unit time to study the combined effect of aforementioned factors on the optimal production quantity. A numerical example along with a comprehensive sensitivity analysis has been presented to demonstrate the applicability of the model and also to observe the effects of key parameters on the optimal production policy respectively. The pertinence of the model can be found in most manufacturing industries like textile, electronics, furniture, footwear, crockery etc.
A Summary of Replacement Policies with Number of Failures
Authors: Zhao Xufeng , Qian Cunhua , Nakamura Syouji , Nakagawa Toshio
Published: March 2019

Periodic replacement models with minimal repairs have been studied extensively. In order to prevent high repair costs after failures, this paper considers the number of failures as another decision variable for replacement policies. We begin with the standard periodic replacement model, and then summarize several extended replacement models with number of failures, using the respective assumptions of whichever occurs first and last, and replacing over planned measure, respectively. Optimum policies of replacement times T, number of periodic times N, and number of failures K are discussed analytically. From the optimization of the integrated models of T, N and K, comparisons among these policies are made in analytical ways to determine which policy should be more economical.
Optimal Release Time Estimation of Software System using Box-Cox Transformation and Neural Network
Authors: Begum Momotaz , Dohi Tadashi
Published: March 2019

The determination of the software release time for a new software product is the most critical issue for designing and controlling software development processes. This paper presents an innovative technique to predict the optimal software release time using a neural network. In our approach, a three-layer perceptron neural network with multiple outputs is used, where the underlying software fault count data are transformed into the Gaussian data by means of the well-known Box-Cox power transformation. Then the prediction of the optimal software release time, which minimizes the expected software cost, is carried out using the neural network. Numerical examples with four actual software fault count data sets are presented, where we compare our approach with conventional Non-Homogeneous Poisson Process (NHPP) -based Software Reliability Growth Models (SRGMs).
Inventory Policies for Price-Sensitive Stock-Dependent Demand and Quantity Discounts
Authors: Shah Nita H. , Naik Monika K.
Published: March 2019

It was usually observed in typical EOQ inventory models that the holding cost, the purchasing cost and the demand rate are constant and the purchasing cost is irrespective of the order size. But practically, the demand rate is based on various factors including sale price, seasonality and availability. Due to the lengthening of shortage periods, the holding cost per unit item increases. Also with the inclusion of quantity discounts, the unit purchasing cost is usually decreased for higher order sizes. This article addresses jointly with the inconsistency of the rate of demand, unit purchasing cost and unit holding cost for deteriorating items. This paper proposes a model based on an inventory problem including selling price of products and stock-dependent market demand rate, holding cost based on storage time and purchasing cost is influenced by order size by offering all units quantity discounts. An algorithm for estimating the optimum solution of decision variables by maximizing total profit and minimizing the overall cost of the model is developed in this paper. Validation of the developed model is confirmed with the help of a numerical example along with the sensitivity-analysis of decision variables by varying various inventory parameters.
Triple Negative Breast Cancer Profile, from Gene to microRNA, in Relation to Ethnicity
Authors: Gupta Ishita , Sareyeldin Rasha M. , Al-Hashimi Israa , Al-Thawadi Hamda A. , Al Farsi Halema , Vranic Semir , Al Moustafa Ala-Eddin
Published: March 2019

Breast cancer is the most frequent cause of cancer-related deaths among women worldwide. It is classified into four major molecular subtypes. Triple-negative breast cancers (TNBCs), a subgroup of breast cancer, are defined by the absence of estrogen and progesterone receptors and the lack of HER-2 expression; this subgroup accounts for ~15% of all breast cancers and exhibits the most aggressive metastatic behavior. Currently, very limited targeted therapies exist for the treatment of patients with TNBCs. On the other hand, it is important to highlight that knowledge of the molecular biology of breast cancer has recently changed the decision-making process regarding the course of cancer therapies. Thus, a number of new techniques, such as gene profiling and sequencing, proteomics, and microRNA analysis have been used to explore human breast carcinogenesis and metastasis including TNBC, which consequently could lead to new therapies. Nevertheless, based on evidence thus far, genomics profiles (gene and miRNA) can differ from one geographic location to another as well as in different ethnic groups. This review provides a comprehensive and updated information on the genomics profile alterations associated with TNBC pathogenesis associated with different ethnic backgrounds.
Approximating Catalyst Effectiveness Factors with Reaction Rate Profiles
Authors: Alopaeus Ville
Published: March 2019

A novel approximate solution for catalyst effectiveness factors is presented. It is based on carefully selected approximate reaction rate profiles, instead of typical assumption of composition profiles inside the catalyst. This formulation allows analytical solution of the approximate model, leading to a very simple iterative solution for effectiveness factor for general nonlinear reaction stoichiometry and arbitrary catalyst particle shape. The same model can be used with all practical Thiele modulus values, including multicomponent systems with inert compounds. Furthermore, the correct formulation of the underlying physical model equation is discussed. It is shown that an incorrect but often-used model formulation where convective mass transfer has been neglected may lead to much higher errors than the present approximation. Even with a correctly formulated physical model, rigorous discretization of the catalyst particle volume may have unexpectedly high numerical errors, even exceeding those with the present approximate solution. The proposed approximate solution was tested with a number of examples. The first was an equimolar reaction with first order kinetics, for which analytical solutions are available for the standard catalyst particle geometries (slab, long cylinder, and sphere). Then, the method was tested with a second order reaction in three cases: (1) with one pure reactant, (2) with inert present, and (3) with two reactants and non-stoichiometric surface concentrations. Finally, the method was tested with an industrially relevant catalytic toluene hydrogenation including Maxwell-Stefan formulation for the diffusion fluxes. In all the tested systems, the results were practically identical when compared to the analytical solutions or rigorous finite volume solution of the same problem.
Covenant of Mayors: Local Energy Generation, Methodology, Policies and Good Practice Examples
Authors: Kona Albana , Bertoldi Paolo , Kılkış Şiir
Published: March 2019

Local authorities and cities are at the forefront of driving the energy transition, which plays a crucial role in mitigating the effects of climate change. The greenhouse gas emissions in cities, due to energy consumption, are placed into two categories: direct emissions generated from the combustion of fossil fuels mainly in buildings and transport sectors, and indirect emissions from grid-supplied energy, such as electricity and district heating and/or cooling. While there is extensive literature focused on direct greenhouse gas emissions accounting in cities’ inventories, research has focused to a lesser extent on allocation methods of indirect emissions from grid-supplied energy. The present paper provides an updated definition for the concept of local energy generation within the Covenant of Mayors initiative and proposes a new methodology for indirect emission accounting in cities’ greenhouse gas emission inventories. In addition, a broader policy framework in which local action is taken is discussed based on the European Union energy and climate policies, and over 80 exemplary Covenant of Mayors good practices are identified across the technology areas of local energy generation and four modes of urban climate governance. The contributions of the paper demonstrate that local authorities have the capacity to support and mobilize action for local energy generation investments through the multiple modes of urban climate governance to update and strengthen climate action
The Carbon Benefit of Thinned Wood for Bioenergy in Taiwan
Authors: Chiou Chyi-Rong , Lin Jiunn-Cheng , Liu Wan-Yu
Published: March 2019

Forest thinning is a way to make room for the growth of remaining trees, and the thinned wood can serve as a fuel for bioenergy in order to combat climate change. Using thinned wood for bioenergy can substitute for fossil fuel energy, resulting in potential carbon benefit. Since not all thinned wood can be transported out of the forest for processing, the extraction ratio (extraction volume/thinning volume) is an important variable for determining the net carbon benefit. This study investigated 52 forest-thinning sites in Taiwan. The extraction ratio was estimated to explore the benefit of thinned wood used as bioenergy. Cross analysis was adopted to find the relationships between site/species attributes and extraction ratio. The factors included age class, thinning method, land use classification, and species. Key variables included thinning volume, extraction volume, and extraction ratio. Statistical analysis was then applied to identify the significant differences. The analysis shows that the extraction ratio of thinned wood is 57.12%. The research outcomes could provide valuable information for green-energy policy making in Taiwan.
Ethical and Legal Considerations for Collection Development, Exhibition and Research at Museums Victoria
Authors: Ladas Nancy
Published: March 2019

With over 17 million collection items, Museums Victoria is the largest museum in Australia. Museums Victoria recognises the public benefit derived from lending and borrowing between collecting institutions and actively participates in the international loans network in order to complement and enhance the potential for learning and enjoyment for all audiences. Museums Victoria staff undertook an extensive review of policies and procedures in order to apply for approval for protection under the Australian Government’s Protection of Cultural Objects on Loan Scheme (PCOL Scheme), established to administer the Commonwealth Protection of Cultural Objects on Loan Act 2013 (PCOL Act). The PCOL Scheme provides (with some limits) legal protection—immunity from seizure—for Australian and foreign cultural items on loan from overseas lenders for temporary public exhibition in Australia. The Ministry for the Arts also released the Australian Best Practice Guide to Collecting Cultural Material in 2015. The Guide is not a mandatory code. It recommends principles and standards to apply when acquiring collection items and in part for inward and outward loans. In 2016–2017 Museums Victoria staff used the Act and its Regulation along with the Guide to substantially update and formalise previous formal and informal policies and practices, in order to demonstrate its commitment to due diligence endeavours to verify the accuracy of information before acquiring, deaccessioning, borrowing, or lending items. This paper outlines the steps we took and what we have learned since receiving approval as a registered borrower under the PCOL Scheme.
Training and Body Composition during Preparation for a 48-Hour Ultra-Marathon Race: A Case Study of a Master Athlete
Authors: Nikolaidis Pantelis T. , Knechtle Celina , Ramirez-Campillo Rodrigo , Vancini Rodrigo L. , Rosemann Thomas , Knechtle Beat
Published: March 2019

Although the acute effects of ultra-endurance exercise on body composition have been well studied, limited information exists about the chronic adaptations of body composition to ultra-endurance training. The aim of the present study was to examine the day-by-day variation of training and body composition of a master athlete during the preparation for a 48-hour ultra-marathon race. For all training sessions (n = 73) before the race, the running distance, duration, and pace were recorded, and body mass, body fat (BF), body water (%), visceral fat, fat-free mass (FFM), four circumferences (i.e., waist, upper arm, thigh and calf), and eight skinfolds (i.e., chest, mid-axilla, triceps, subscapular, abdomen, iliac crest, thigh and calf) were measured accordingly in a 53-year-old experienced ultra-endurance athlete (body mass 80.1 kg, body height 177 cm, body mass index 25.6 kg·m−2). The main findings of the present study were that (a) the training plan of the ultra-endurance master athlete followed a periodization pattern with regard to exercise intensity and training volume, which increased over time, (b) the body mass, BF, and FFM decreased largely during the first 30 training sessions, and (c) the circumferences and skinfolds reflected the respective decrease in BF. The findings of this case study provided useful information about the variation of training and body composition during the preparation for an ultra-marathon race in a male master ultra-marathoner. The preparation for an ultra-endurance race seems to induce pronounced changes in body mass and body composition.
The Vital Worker: Towards Sustainable Performance at Work
Authors: de Jonge Jan , Peeters Maria C.W.
Published: March 2019

Vitality at work is an important factor for organizations to build a healthier, more engaged, sustainable, and productive workforce. The organizational and societal relevance of vitality at work is high, particularly with regard to an aging and more diverse workforce. This Special Issue focusses on what might be called sustainable performance at work: Maximizing work performance as well as worker health and well-being through employee vitality. Currently, there are still many gaps of knowledge with regard to the relationship between employee vitality and sustainable performance at work. Examples of knowledge gaps are concerned with potential determinants of vitality at work for different occupational groups (such as older workers, ethnic minority workers, and handicapped workers), pathways linking vitality to sustainable performance, or health effects of interventions targeting employee vitality and/or sustainable performance at work. With this Special Issue, we hope to provide readers with solid new findings extending the current state of knowledge about employee vitality and sustainable work performance.
Hypoxia Induces Astrocyte-Derived Lipocalin-2 in Ischemic Stroke
Authors: Ranjbar Taklimie Fatemeh , Gasterich Natalie , Scheld Miriam , Weiskirchen Ralf , Beyer Cordian , Clarner Tim , Zendedel Adib
Published: March 2019

Ischemic stroke causes rapid hypoxic damage to the core neural tissue which is followed by graded chronological tissue degeneration in the peri-infarct zone. The latter process is mainly triggered by neuroinflammation, activation of inflammasomes, proinflammatory cytokines, and pyroptosis. Besides microglia, astrocytes play an important role in the fine-tuning of the inflammatory network in the brain. Lipocalin-2 (LCN2) is involved in the control of innate immune responses, regulation of excess iron, and reactive oxygen production. In this study, we analyzed LCN2 expression in hypoxic rat brain tissue after ischemic stroke and in astrocyte cell cultures receiving standardized hypoxic treatment. Whereas no LCN2-positive cells were seen in sham animals, the number of LCN2-positive cells (mainly astrocytes) was significantly increased after stroke. In vitro studies with hypoxic cultured astroglia revealed that LCN2 expression is significantly increased after only 2 h, then further increased, followed by a stepwise decline. The expression pattern of several proinflammatory cytokines mainly followed that profile in wild type (WT) but not in cultured LCN2-deficient astrocytes. Our data revealed that astrocytes are an important source of LCN2 in the peri-infarct region under hypoxic conditions. However, we must also stress that brain-intrinsic LCN2 after the initial hypoxia period might come from other sources such as invaded immune cells and peripheral organs via blood circulation. In any case, secreted LCN2 might have an influence on peripheral organ functions and the innate immune system during brain hypoxia.
Effective Treatment of Diabetic Cardiomyopathy and Heart Failure with Reconstituted HDL (Milano) in Mice
Authors: Aboumsallem Joseph Pierre , Muthuramu Ilayaraja , Mishra Mudit , Kempen Herman , De Geest Bart
Published: March 2019

The risk of heart failure (HF) is prominently increased in patients with type 2 diabetes mellitus. The objectives of this study were to establish a murine model of diabetic cardiomyopathy induced by feeding a high-sugar/high-fat (HSHF) diet and to evaluate the effect of reconstituted HDLMilano administration on established HF in this model. The HSHF diet was initiated at the age of 12 weeks and continued for 16 weeks. To investigate the effect of reconstituted HDLMilano on HF, eight intraperitoneal administrations of MDCO-216 (100 mg/kg protein concentration) or of an identical volume of control buffer were executed with a 48-h interval starting at the age of 28 weeks. The HSHF diet-induced obesity, hyperinsulinemia, and type 2 diabetes mellitus. Diabetic cardiomyopathy was present in HSHF diet mice as evidenced by cardiac hypertrophy, increased interstitial and perivascular fibrosis, and decreased myocardial capillary density. Pressure-volume loop analysis indicated the presence of both systolic and diastolic dysfunction and of decreased cardiac output in HSHF diet mice. Treatment with MDCO-216 reversed pathological remodelling and cardiac dysfunction and normalized wet lung weight, indicating effective treatment of HF. No effect of control buffer injection was observed. In conclusion, reconstituted HDLMilano reverses HF in type 2 diabetic mice.
Enhanced Electrochemical Performances of Cobalt-Doped Li2MoO3 Cathode Materials
Authors: Yu Zhiyong , Hao Jishen , Li Wenji , Liu Hanxing
Published: March 2019

Co-doped Li2MoO3 was successfully synthesized via a solid phase method. The impacts of Co-doping on Li2MoO3 have been analyzed by X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR) measurements. The results show that an appropriate amount of Co ions can be introduced into the Li2MoO3 lattices, and they can reduce the particle sizes of the cathode materials. Electrochemical tests reveal that Co-doping can significantly improve the electrochemical performances of the Li2MoO3 materials. Li2Mo0.90Co0.10O3 presents a first-discharge capacity of 220 mAh·g−1, with a capacity retention of 63.6% after 50 cycles at 5 mA·g−1, which is much better than the pristine samples (181 mAh·g−1, 47.5%). The enhanced electrochemical performances could be due to the enhancement of the structural stability, and the reduction in impedance, due to the Co-doping.
Quality Control of High Carbon Steel for Steel Wires
Authors: Yan Wei , Chen Weiqing , Li Jing
Published: March 2019

High-carbon steel wires used for bridge cables, tire reinforcement materials and cutting materials of silicon ingot for photovoltaic industry require an extremely fine diameter and high strength. Poor control of centerline segregation, inclusion and microstructure of high-carbon steel is detrimental to drawability and subsequent fatigue performance. Prof. Weiqing Chen’s group at the University of Science and Technology Beijing (USTB) has been investigating the quality control of high-carbon steel through a low-cost one-stage hot rolling process since 2000. This paper reviews the main research from this group. The laboratory-scale and industrial results are presented. Intensive secondary cooling, final electromagnetic stirring (F-EMS), final permanent magnetic stirring (F-PMS), and soft reduction are investigated and applied to control centerline segregation, and the application scope is also discussed. A combination of redesign of submerged entry nozzle (SEN) and refining slag, utilization of Al-free refractory and the addition of low-melting-point compounds is studied and applied effectively to control inclusions. Measurements and mechanisms to control network cementite, martensite, banded structure and undesired texture are investigated and discussed. Integration of the above research has achieved industrial application in more than 10 steelworks and was further extended to application in spring steel, welding wire steel and some other wire rods.
Cell Viability of Porous Poly(d,l-lactic acid)/Vertically Aligned Carbon Nanotubes/Nanohydroxyapatite Scaffolds for Osteochondral Tissue Engineering
Authors: Stocco Thiago , Antonioli Eliane , Elias Conceição , Rodrigues Bruno , Siqueira Idália , Ferretti Mario , Marciano Fernanda , Lobo Anderson
Published: March 2019

Treatment of articular cartilage lesions remains an important challenge. Frequently the bone located below the cartilage is also damaged, resulting in defects known as osteochondral lesions. Tissue engineering has emerged as a potential approach to treat cartilage and osteochondral defects. The principal challenge of osteochondral tissue engineering is to create a scaffold with potential to regenerate both cartilage and the subchondral bone involved, considering the intrinsic properties of each tissue. Recent nanocomposites based on the incorporation of nanoscale fillers into polymer matrix have shown promising results for the treatment of osteochondral defects. In this present study, it was performed using the recently developed methodologies (electrodeposition and immersion in simulated body fluid) to obtain porous superhydrophilic poly(d,l-lactic acid)/vertically aligned carbon nanotubes/nanohydroxyapatite (PDLLA/VACNT-O:nHAp) nanocomposite scaffolds, to analyze cell behavior and gene expression of chondrocytes, and then assess the applicability of this nanobiomaterial for osteochondral regenerative medicine. The results demonstrate that PDLLA/VACNT-O:nHAp nanocomposite supports chondrocytes adhesion and decreases type I Collagen mRNA expression. Therefore, these findings suggest the possibility of novel nanobiomaterial as a scaffold for osteochondral tissue engineering applications.
Heavy Mineral Sands in Brazil: Deposits, Characteristics, and Extraction Potential of Selected Areas
Authors: Gonçalves Caroline C. , Braga Paulo F. A.
Published: March 2019

In Brazil, heavy mineral sand deposits are still barely exploited, despite some references to Brazilian reserves and ilmenite concentrate production. The goal of this project is to characterize and investigate the potential recovery of heavy minerals from selected Brazilian placer occurrences. Two areas of the coastal region were chosen, in Piaui state and in Bahia Provinces. In all samples, the heavy minerals of interest (ilmenite, monazite, rutile, and zircon) were identified by scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques and also quantified by X-ray fluorescence spectrometry (XRF) and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The total heavy minerals (THM) in the Piaui samples were 6.45% and 10.14% THM, while the figure for the Bahia sample was 3.4% THM. The recovery test of the Bahia sample, using only physical separation equipment such as a shaking table and magnetic separator, showed valuable metallurgical recoveries at around or greater than 70% for each stage, and the final concentrate of pure ilmenite was composed of up to 60.0% titanium dioxide after the differential magnetic separation. Another aim is to compile accessible information about Brazilian heavy mineral main deposits complemented with a short economic overview.
Insulin in Type 1 and Type 2 Diabetes—Should the Dose of Insulin Before a Meal be Based on Glycemia or Meal Content?
Authors: Krzymien Janusz , Ladyzynski Piotr
Published: March 2019

The aim of this review was to investigate existing guidelines and scientific evidence on determining insulin dosage in people with type 1 and type 2 diabetes, and in particular to check whether the prandial insulin dose should be calculated based on glycemia or the meal composition, including the carbohydrates, protein and fat content in a meal. By exploring the effect of the meal composition on postprandial glycemia we demonstrated that several factors may influence the increase in glycemia after the meal, which creates significant practical difficulties in determining the appropriate prandial insulin dose. Then we reviewed effects of the existing insulin therapy regimens on glycemic control. We demonstrated that in most existing algorithms aimed at calculating prandial insulin doses in type 1 diabetes only carbohydrates are counted, whereas in type 2 diabetes the meal content is often not taken into consideration. We conclude that prandial insulin doses in treatment of people with diabetes should take into account the pre-meal glycemia as well as the size and composition of meals. However, there are still open questions regarding the optimal way to adjust a prandial insulin dose to a meal and the possible benefits for people with type 1 and type 2 diabetes if particular parameters of the meal are taken into account while calculating the prandial insulin dose. The answers to these questions may vary depending on the type of diabetes.
Nutrient Composition Comparison between the Low Saturated Fat Swank Diet for Multiple Sclerosis and Healthy U.S.-Style Eating Pattern
Authors: Chenard Catherine A. , Rubenstein Linda M. , Snetselaar Linda G. , Wahls Terry L.
Published: March 2019

Multiple sclerosis (MS) is an incurable degenerative disease that attacks the central nervous system. Roy Swank proposed a low saturated fat diet to treat MS around 1950 and showed delayed disease progression in his patients. However, there is insufficient evidence to recommend this diet for MS and default dietary recommendations are the Dietary Guidelines for Americans (DGA). This study assessed the nutritional adequacy of seven-day menus developed by Swank and their compliance with the DGA; menus were modeled for comparison with the DGA Healthy US-Style Eating Pattern (HEP) for males and females 31–50 years. Swank recommended dietary supplements corrected menu shortfalls in vitamins D, E, calcium, folate and iron but not dietary fiber, potassium and choline. Healthy Eating Index-2015 score for Swank menus (93.2/100) indicated good compliance with the DGA. Nutritional adequacy of the Swank modeled diet was similar to HEP for 17 vitamins and minerals (Mean Adequacy Ratios ≥94%) with similar shortfall nutrients except magnesium (HEP males) and dietary fiber (Swank males). Alternate Healthy Eating Index-2010 scores for Swank male (90/110) and female (88/110) model diets were similar to HEP. Swank menus have similar nutritional adequacy as HEP. Inclusion of foods high in dietary fiber, potassium and choline may be advised as well as selection of foods to reduce sodium below the Tolerable Upper Intake Level.