bluuebunny/crossref_metadata_2025 huggingface dataset:
Tissue-specific transcriptional patterns underlie seasonal phenotypes in honey bees (Apis mellifera)
Authors: Bresnahan Sean , Döke Mehmet , Giray Tugrul , Grozinger Christina
Published: July 2021

Faced with adverse conditions, such as winter in temperate regions or
hot and dry conditions in tropical regions, many insect species enter a
state of diapause, a period of dormancy associated with a reduction or
arrest of physical activity, development, and reproduction. Changes in
common physiological pathways underlie diapause phenotypes in different
insect species. However, most transcriptomic studies of diapause have
not simultaneously evaluated and compared expression patterns in
different tissues. Honey bees (Apis mellifera) represent a unique model
system to study the mechanisms underpinning diapause. In winter, honey
bees exhibit a classic diapause phenotype, with reduced metabolic
activity, increased physiological nutritional resources, and altered
hormonal profiles. However, winter bees actively heat their colony by
vibrating their wing muscles; thus, this tissue is not quiescent. Here,
we evaluated the transcriptional profiles of flight muscle tissue and
fat body tissue (involved in nutrient storage, metabolism and immune
function) of winter bees. We also evaluated two behavioral phenotypes of
summer bees: nurses, which exhibit high nutritional stores and low
flight activity, and foragers, which exhibit low nutritional stores and
high flight activity. We found winter bees and nurses have similar fat
body transcriptional profiles compared to foragers, whereas winter bees
and foragers have similar flight muscle transcriptional profiles
compared to nurses. Additionally, differentially expressed genes were
enriched in diapause-related GO terms. Thus, honey bees exhibit
tissue-specific transcriptional profiles associated with diapause,
laying the groundwork for future studies evaluating the mechanisms,
evolution, and consequences of this tissue-specific regulation.
Effects and correlation analysis of different host-plant components on physiological indexes in Spodoptera frugiperda
Authors: Fang Min , Lu Sihan , Yao Ling , Zheng Renwen , Huang Jianhua , Li Guiting , Tang Qingfeng
Published: July 2021

Spodoptera frugiperda (Lepidoptera: Noctuidae) is an invasive pest that
ravaging crops in many provinces of China. In order to specifically
control this invasive pest, understanding of the relationship between
the insect and the host is necessary. In this study, we have compared
the biological and nutritional indexes of S. frugiperda by feeding it
with five different host-plants (Zea mays, Triticum aestivum, Digitaria
sanguinalis, Glycine max and Eleusine indica). The biological and
nutritional indexes of Z. mays feeding S. frugiperda were the best.
However, the pupa weight and fecundity of S. frugiperda fed with G. max
and E. indica were significantly lower than those fed with other hosts,
efficiency of conversion of digested food (ECD) and efficiency of
conversion of ingested food (ECI) were also lower than others. The total
phenol content was negatively correlated with the biological and
nutritional indexes of S. frugiperda, while the C/N content was
positively correlated. When fed on different host plants, the biological
and nutritional indexes of S. frugiperda were different, but all of them
could complete the life cycle. Therefore, in the absence of Z. mays, the
S. frugiperda may also harm other host plants, and host plants with high
C/N content can also with the risk of being infected.
Reproducibility Practice in High Performance Computing: Community Survey Results
Authors: Plale Beth , Malik Tanu , Pouchard Line
Published: July 2021

The integrity of science and engineering research is grounded in assumptions of rigor and transparency on the part of those engaging in such research. HPC community effort to strengthen rigor and transparency take the form of reproducibility efforts. In a recent survey of the SC conference community, we collected information about the SC Reproducibility Initiative activities. We present the survey results in this paper. Results show that the reproducibility initiative activities have contributed to higher levels of awareness on the part of SC conference technical program participants, and hint at contributing to greater scientific impact for the published papers of the SC conference series. Stringent point-of-manuscript-submission verification is problematic for reasons we point out, as are inherent difficulties of computational reproducibility in HPC. Future efforts should better decouple the community educational goals from goals that specifically strengthen a research work’s potential for long-term impact through reuse 5-10 years down the road.
The Evaluation of an English Preparatory Program Using CIPP Model and Exploring A1 Level Students’ Motivational Beliefs
Authors: Görkem Erdogan  , Mede Enisa
Published: July 2021

The purpose of the present study is to evaluate English Preparatory School Language Program in a state university from students’ and instructors’ point of view and also investigate the students’ motivational beliefs for learning in the existing program. More specifically, Stufflebeam’s (1971) CIPP (context, input, process, product) evaluation model was used to evaluate the English language program whereas MSLQ (motivated strategies for learning questionnaire) developed by Pintrich, Garcia, Mckeachie and Smith (1991) was administered to investigate the motivational beliefs for learning of the participating students. Both quantitative and qualitative data were collected in this study. The quantitative data were obtained through questionnaires administered to 54 Turkish EFL students and 33 EFL instructors enrolled in the A1 (elementary level) English preparatory program. The qualitative data were gathered via semi-structured interviews with 10 students and 5 instructors from the same program. The findings of the study revealed that the program partially succeeded its objectives. Both students and instructors were content with materials, assessment dimensions of the program as well as the teaching methods. On the other hand, there was a need for the improvement of the speaking and listening skills and tasks in the A1 program. In addition to this, among the motivational beliefs of the students, control beliefs, task value and intrinsic goal orientation were perceived to be crucial for the students during the process of English learning. The study provides suggestions and pedagogical implications for the English preparatory programs.
Evaluation of the Professional Competency of University Faculty Members as Perceived by Higher Education Students
Authors: Ibad Fareeda , Muhammad Yousuf Sharjeel
Published: July 2021

This study considered the importance of professionalism in university faculty performance since effective learning has its basis the superior instructional and professional competence of teachers. The purpose of the study was to attempt to suggest a hybrid model of faculty effectiveness evaluation based on the perceptions of higher education students regarding their faculty’s quality of teaching. The research focused on involving higher education students in determining the effectiveness characteristics of their teachers in order to provide a justification for developing effective operational systems for teacher evaluation in Pakistan. The study used a mixed methods research design comprising both quantitative and qualitative methods for the purpose of data collection and analysis.  To address the research problem, the researcher chose to base the theoretical framework for the research on Marsh’s (1982) research and development of the Student Evaluation of Educational Quality (SEEQ) questionnaire. Further to this, the researcher developed the conceptual framework through the research of Gurney and Wise (2002) from where the criteria for evaluating the effective teacher questionnaire emerged having characteristics similar to those in the SEEQ and was used to attempt to bridge the time gap and establish the validity of the SEEQ over more than three decades. The data was gleaned from using both questionnaires from a sample of n= 395 under two-tailed probability distribution. All constructs’ reliability was above the criteria suggested by different scholars rendering the SEEQ questionnaire as reliable for the study.
Iqbal and Modern Islamic Educationists Part 2: The Perceived Objectives of Education and Practices on the Ground – A Comparative Analysis
Authors: Muhammad Abid Ali  , Suhailah Binti Hussien
Published: July 2021

Nations design their education systems to prepare youth for achieving national goals and objectives as perceived by that nation. The education system reflects nations' epistemological, ontological and axiological assumptions. Accordingly, the secular west has designed its educational intervention based on their assumptions and is diametrically opposite to Islamic belief and culture (Asad, 2005).   Our contemporary education system is largely developed by the west on secular assumptions of life and as such is leading our children to develop the Western secular perceptual framework. Iqbal explicates that a dynamic education system based on Islamic percepts is a prerequisite for developing an Islamic individual as well as an effective Islamic ummah. The first part of this research article, Iqbal and modern Islamic educationists, part 1: Perceived Aims and Objectives of education – a comparative analysis, focused on the comparative analysis of aims and objectives of education from an Islamic perspective as perceived by Islamic educationists in Pakistan with that of Iqbal’s, as drawn from his two Persian anthologies of Asrar I khudi (Secrets of the Self), and Ramooz I bikhudi (Mysteries of Selflessness). In the second part, the practices or modus operandi of these Islamic educationists to achieve their perceived aims and objectives of education from an Islamic perspective have been analyzed in the light of Iqbal’s educational philosophy. The findings show that though to some extent the aims and objectives comply with Iqbal’s prescribed aims and objectives of education, but on the ground, the practices which the Islamic educators have adopted, largely from the western approach of education, act as inhibitors to the spirit of those aims and this is not being realized by these educators.
Motorization and Under-Reported Road Accidents: Spatial Evidence from Pakistan
Authors: Baig Farrukh , Shaikh Sajan , Talpur Mir Aftab Hussain
Published: July 2021

Considering the importance of road safety, as discussed in the agenda of World Health Organization-2030; this study folds motorization and under-reporting of road accidents in Punjab, Pakistan. The objectives of the study are selected as 1) identifying the motorization in Punjab; 2) synthesizing the vehicles dominance by preparing spatial maps on the basis of their types; 3) identifying the evidence of under-reporting of road accidents. Compound Annual Growth Rate (CAGR) of different vehicles were estimated, and spatial maps were generated using ArcGIS to demonstrate the spatial distribution of vehicles (CAGR). Results indicated the potential impact of geographical locations on the CAGR of vehicles. The CAGR of registered vehicles was recorded as: 2.73% to 9.93% for Cars; 12.63% to 18.94% for Motorcycles; 9.35% to 24.1% for Rickshaws; 0.74% to 7.29% for Trucks and 5.25% to 14.42% for Vans. On the other hand, the CAGR of road length varied from 0.35% to 12.03% that illustrated the alarming situation of increased motorization. Sluggish infrastructural development and the huge recorded difference in CAGR can be categorized as the possible causes of immense road accidents. By comparing reported road accidents with Punjab Emergency Service (PES) estimations; the average rate of annual under-reported road accidents was found as 62.6% that also showed variations, according to different administrative regions of the Punjab province. Study findings suggests that the development of effective transportation policy, focusing road safety may help Pakistan to curtail road accidents and induce free-flow of traffic.
Incorporating MNL Model into Random Forest for Travel Mode Detection
Authors: Shafique Muhammad Awais , Hato Eiji
Published: July 2021

Mode choice models have been used widely to forecast the relative probabilities of using available travel modes. These depend on mode-related and traveler-related characteristics. On the other hand, smartphones are increasingly being used to collect sensors’ data relating to trips made after selection of a suitable mode. Such sensors’ data may be correlated with decision-making process of travelers regarding travel mode selection. Discrete Choice Modelling is used to simulate this decision-making process by computing utilities of various travel alternatives, and then calculating their respective probabilities of being selected. In this paper, multinomial logit (MNL) mode choice model is utilized to enhance the prediction capacity of supervised learning algorithm i.e. Weighted Random Forest. To make the procedure less energy-intensive, GPS data was used only to locate the origin and destination of any trip, to be incorporated in mode choice model. Afterwards only accelerometer data was utilized in feature selection for the learning algorithm. One tenth of the classified data was used to train the algorithm whereas rest was used to test it. Results suggested that with incorporation of MNL, the overall prediction accuracy of learning algorithm was increased from 93.75% to 99.08%.
Tensile Properties of Bagasse Fiber Composites
Authors: Siddique Sheraz Hussain , Faisal Dr. Saira , Zahid Bilal , Wang Chunhong
Published: July 2021

Bagasse is a waste generated in abundance from the sugarcane industry. This investigation was planned to convert bagasse waste into a useful composite. For this purpose the bagasse waste was obtained from sugar cane juice producer. In this study, the extraction of bagasse fibers was done manually and they were treated with sodium hydroxide. The treated bagasse fibers had higher tensile properties as compared to untreated ones, so the alkali treated fibers were used as reinforcement for making composites. Hand lay-up technique was used to manufacture bagasse composite samples. The fiber length (1 inch and 2 inch) and fiber weight percentage (10 wt% and 20 wt%) were considered as variables. It was found that better tensile properties were obtained with higher fiber length (2 inch) and weight percentage (20 wt%). Bagasse-cotton fabric composites were also produced using cotton fabric as a base material and the bagasse fibers were sandwiched between a printed and plain cotton fabric. The idea was to consider these composites useful for sun-shades or for decorative purposes. It was also found that bagasse-cotton fabric reinforced composites had higher tensile strength and strain; however the modulus had reduced due to higher elongation of cotton fabrics. With the increase in the weight percentage the tensile properties had reduced this might be because during the composite manufacturing the epoxy resin had to pass through the fabric to wet the bagasse fiber out and they were not wetted out properly. This phenomenon needs further investigation.
Selective Flocculation Study of Hematite in HematiteQuartz-Kaolinite System in Presence of Ca2+, Mg2+ and Fe3+ Ions. Part1: Optimization of Ligand
Authors: Abro Muhammad Ishaque , Laghari Abdul Jaleel , Aftab Umair , Channa Sikander Ali , Kumar Mukesh
Published: July 2021

Separation of ultrafine hematite from quartz and kaolinite gangue minerals using selective flocculation technique is markedly affected by the state of inter mineral interaction which is governed by type and content of polyvalent metal ions. Because of the presence of polyvalent metal ions hetracoagulation of gangue minerals is widely acknowledged, thus selective flocculation of ultrafine hematite from associated gangue minerals is challenging task when their concentration is above 10 ppm. This study has shown that state of strong interaction of gangue minerals with hematite due to presence of 15 ppm Ca2+, 3 ppm Mg2+ and 3 ppm Fe3+ ions can be weakened by addition of optimal dose of Sodium Hexametaphosphate (SHMP) ligand. The optimization of ligand dose is achieved through analysis of Zeta Potential (ZP) as a function of slurry pH. It is noted that 50 ppm of SHMP is sufficient to restore the ZP of hematite, where selective dispersion of the slurry constituents are possible. Our results further showed that conventional strategy of obtaining minimum difference of ±30 mV in the ZP of hematite and gangue minerals quartz and kaolinite would not work especially in the presence of 15 ppm Ca2+, 3 ppm Mg2+ and 3 ppm Fe3+ ions. Attempts to achieve the minimum threshold difference in the ZP of the minerals will cause over dispersion.
Reinforcement Learning Based Hierarchical Multi-Agent Robotic Search Team in Uncertain Environment
Authors: Hamid Shahzaib , Nasir Ali , Saleem Yasir
Published: July 2021

Field of robotics has been under the limelight because of recent advances in Artificial Intelligence (AI). Due to increased diversity in multi-agent systems, new models are being developed to handle complexity of such systems. However, most of these models do not address problems such as; uncertainty handling, efficient learning, agent coordination and fault detection. This paper presents a novel approach of implementing Reinforcement Learning (RL) on hierarchical robotic search teams. The proposed algorithm handles uncertainties in the system by implementing Q-learning and depicts enhanced efficiency as well as better time consumption compared to prior models. The reason for that is each agent can take action on its own thus there is less dependency on leader agent for RL policy. The performance of this algorithm is measured by introducing agents in an unknown environment with both Markov Decision Process (MDP) and RL policies at their disposal. Simulation-based comparison of the agent motion is presented using the results from of MDP and RL policies. Furthermore, qualitative comparison of the proposed model with prior models is also presented.
Evaluating the Effect of Plastomer Modified Asphalt Mixture on High/Low Temperature Performance
Authors: Ullah Rafi , Hafeez Imran , Haroon Waqas , Haider Safeer
Published: July 2021

Asphalt pavement’s surfaces deteriorate over time due to combined effect of traffic and surrounding environment. Fatigue and rutting are the major distresses which cause failures in flexible pavements. Different temperature control computer operated equipment’s are being used worldwide to predict the performance of asphalt mixtures at approximately same condition to those in-service pavements. Similarly, different types of polymers such as elastomer and thermoplastic have been used all over the world in Hot Mix Asphalt (HMA) for the improvement of asphalt mixtures. But little attention has been taken to evaluate the effect of plastomer on hot mix asphalt performance. Moreover, the initial cost of elastomer is higher than other types of polymers such as plastomer. The aim of this research study is to check the effect of various plastomers on high/low temperature performance of asphalt mixture. Four performance tests like Cooper wheel tracker, dynamic modulus, uniaxial repeated load and four-point bending beam test are used to evaluate the effect of different type of plastomers such as polyethylene terephthalate, high density and low density polyethylene with limestone aggregate quarry and 60/70 pen grade asphalt binder. This research study concludes that plastomer increases flexibility and hardness of asphalt mixtures and improves the rut resistance, dynamic modulus and fatigue life of asphalt mixtures. Plastomer modification shows significant benefits as compared to neat binder for high/low temperature performance. Moreover, it can be concluded that plastomer provides an efficient and economical blend of asphalt mixture.
Heat transfer characteristics of molten salt flowing in steam generator
Authors: He Shiquan , Wei Linhao , Lu Jianfeng , Wang Weilong
Published: July 2021

The paper respectively investigated the heat transfer characteristics of molten salt flowed in shell-and-tube and double-pipe steam generator. The shell-and-tube steam generator had seven tubes and molten salt flowed outside the tubes, while the double-pipe steam generator had two concentric tubes and molten salt flowed in the annular duct formed by two tubes. Inlet temperature of molten salt ranged from 270? to 420?. The experimental results showed the effect of temperature on heat transfer coefficient was more significant in the double-pipe steam generator compared to the shell-and-tube steam generator. The heat transfer coefficient firstly increased and then decreased as the increase of temperature. Further numerical study was conducted and the results showed, in the shell-and-tube steam generator, the flow is disturbed by the tube bundle and the boundary-layer near the inner wall is deformed, so the temperature of molten salt cannot obviously affect the heat transfer. In the double-pipe steam generator, an opposite flow was generated in the near cooled wall region by the buoyancy force. When the inlet temperature was below 315?, the velocity of the opposite flow was quite low. In this stage, the heat transfer coefficient increased with the increase of temperature. When the inlet temperature continues to rise to 390?, the opposite flow was enhanced and a stable layer with low velocity formed between the mainstream and the inner cooled wall, resulting increase of heat transfer resistance and impairment of heat transfer coefficient.
Modification of the Association Between Severe Hypoglycemia and Ischemic Heart Disease by Surrogates of Vascular Damage Severity in Type 1 Diabetes During ∼30 Years of Follow-up in the DCCT/EDIC Study
Authors: Fahrmann Elke R. , Adkins Laura , Driscoll Henry K.
Published: July 2021

OBJECTIVE

Literature suggests that severe
hypoglycemia (SH) may be linked to cardiovascular events only in older individuals
with high cardiovascular risk score (CV-score). Whether a potential relationship between any-SH and cardiovascular
disease exists and whether it is conditional on vascular damage severity in a young
type 1 diabetes (T1D) cohort without apparent macro-vascular
and no or mild-to-moderate micro-vascular complications
at baseline is unknown.

RESEARCH DESIGN AND METHODS

We evaluated data of 1441
Diabetes Control and Complications Trial (DCCT)/Epidemiology of Diabetes
Interventions and Complications (EDIC) volunteers (diabetes duration 1-15
years) followed
for ~30 years. Time-dependent associations between any-SH, interactions of any-SH
with surrogates of baseline micro-/macro- vascular damage severity (diabetes
duration, Early Treatment Diabetic Retinopathy Study scale (ETDRS),
Diabetes Complications Severity Index (DCSI), or CV-scores) and ischemic
heart disease (IHD: death, silent/nonfatal myocardial infarct,
revascularization, or confirmed angina) were analyzed.

RESULTS

Without interactions, in the minimal
adjusted model controlling for confounding bias by age and HbA1c, SH was a
significant IHD factor (p~0.003). SH remained a significant factor for IHD in fully
adjusted models (p<0.05). In models with interactions, interactions between SH and surrogates of
microvascular complications severity, but not between SH and CV-score, were
significant. Hazard ratios for IHD based on SH increased
1.19-fold, 1.32-fold, and 2.21-fold for each additional year of
diabetes duration, ETDRS-unit, and DCSI-unit, respectively. At time of IHD event, ~15% of 110 participants
with SH had high CV-scores.

CONCLUSION

In a young T1D cohort with no baseline macrovascular complications,
surrogates of baseline microvascular damage severity impact the
effect of SH on IHD. Older age with high CV-score per se is not mandatory for
an association of SH with IHD. However, the association is multifactorial.
Profiles of Glucose Metabolism in Different Prediabetes Phenotypes, Classified by Fasting Glycemia, 2-Hour OGTT, Glycated Hemoglobin, and 1-hour OGTT: An IMI DIRECT Study
Authors: Tura Andrea , Grespan Eleonora , Göbl Christian S. , Koivula Robert W. , Franks Paul W. , Pearson Ewan R. , Walker Mark , Forgie Ian M. , Giordano Giuseppe N. , Pavo Imre , Ruetten Hartmut , Dermitzakis Emmanouil T. , McCarthy Mark I. , Pedersen Oluf , Schwenk Jochen M. , Adamski Jerzy , Masi Federico De , Tsirigos Konstantinos D. , Brunak Søren , Viñuela Ana , Mahajan Anubha , McDonald Timothy J. , Kokkola Tarja , Vangipurapu Jagadish , Cederberg Henna , Laakso Markku , Rutters Femke , Elders Petra J.M. , Koopman Anitra D.M. , Beulens Joline W. , Ridderstråle Martin , Hansen Tue H. , Allin Kristine H. , Hansen Torben , Vestergaard Henrik , Mari Andrea , Consortium IMI DIRECT
Published: July 2021

Differences in glucose metabolism among categories of
prediabetes have not been systematically investigated. In
this longitudinal study, participants (N=2111) underwent 2h-75g OGTT at baseline and 48 months. HbA1c
was also measured. We classified participants as having isolated prediabetes
defect (impaired fasting glucose, IFG; impaired glucose tolerance, IGT;
HbA1c-prediabetes, IA1c), two defects (IFG+IGT, IFG+IA1c, IGT+IA1c), or all
defects (IFG+IGT+IA1c). Beta-cell
function (BCF) and insulin sensitivity (IS) were assessed from OGTT. At baseline, when pooling participants
with isolated defects, they showed impairment in both BCF and IS compared to
healthy controls. Pooled groups with two or three defects showed progressive
further deterioration. Among groups with isolated defect, IGT showed lower IS,
insulin secretion at reference glucose (ISRr), and insulin secretion
potentiation (p<0.002). Conversely, IA1c showed higher IS and ISRr
(p<0.0001). Among groups with two defects, we similarly found differences in
both BCF and IS. At 48 months, we found higher type 2 diabetes incidence for
progressively increasing number of prediabetes defects (odds ratio >2,
p<0.008). In conclusion, the
prediabetes groups showed differences in type/degree of glucometabolic
impairment. Compared to the pooled group with isolated defects, those with
double or triple defect showed progressive differences in diabetes incidence.
Radarberendezések középfrekvenciás impulzus­-kompressziós adójel-­generáló és vevő­-jelfeldolgozó rendszere
Authors: Bárány Dániel , Rembeczki Szabolcs
Published: July 2021

A Gazdaságfejlesztési és Innovációs Operatív Program (GINOP 2.1.7­15 pályázat) keretében a MILTECH Zrt. kifejlesztett egy középfrekvenciás impulzus-­kompressziós adójel-­generáló és vevő-­jelfeldolgozó rendszert radarberendezésekhez. Az impulzus-­kompresszió hátterének és eljárásainak bevezetése után a tanulmány bemutatja a kifejlesztett eszközt és annak fő paramétereit.
Partial submergence: An undescribed behavioral adjustment for thermoregulation at high ambient temperature in Aeshnidae
Authors: Deviche Pierre
Published: July 2021

Many insects including odonates thermoregulate using a combination of behavioral and physiological mechanisms. At high ambient temperature (Ta), these mechanisms include decreased heat production and increased heat loss. Heat production can be reduced by decreasing activity. Heat loss can be enhanced by perching in a shaded microhabitat where temperature is cooler than in the surrounding environment. Aeshnids, which are intermittent endotherms, increase heat loss at high Ta; also by increasing hemolymph circulation from the thorax, where most metabolic heat is produced, to the abdomen, where it dissipates to the environment by convection. While studying two aeshnid species (Anax junius and Rhionaeschna multicolor) at a Sonoran Desert (Arizona, USA) stream, I observed partially submerged mature individuals of both sexes of these species. This heretofore undescribed behavior was seen only at Ta; ≥ 43 °C and almost exclusively during the hottest part of the day (15:00–17:00 hr), when the daily difference between Ta; and water temperature (Tw) was, on average, largest. A cooling effect of partial submergence behavior on body temperature would, therefore, presumably be most effective also during this period. Several percher species of libellulids were present at the study site. These dragonflies are not known to use endothermy for thermoregulation or to increase hemolymph circulation to the abdomen to dissipate heat at high Ta;, and none was ever observed to partially submerge. It is suggested in aeshnids that partial submergence at high Ta; serves a thermoregulatory function by facilitating body heat dissipation from the abdomen.
Editorial
Authors: Abar Celina A. A. Pereira
Published: July 2021

A Revista do Instituto GeoGebra Internacional de São Paulo (IGISP), ISSN 2237-9657, de regularidade semestral, é uma publicação eletrônica do Instituto GeoGebra de São Paulo com sede na Faculdade de Ciências Exatas e Tecnologia, Programa de Estudos Pós-Graduados em Educação Matemática da Pontifícia Universidade Católica de São Paulo (PUC-SP), Brasil. De acesso livre, tem por objetivo oferecer um espaço para divulgação e circulação de pesquisas e trabalhos desenvolvidos com o uso do software GeoGebra, principalmente, na América Latina. Esse primeiro número do volume 10 da revista de 2021 apresenta nove artigos que procuram abarcar as diferentes possibilidades e caminhos com que o GeoGebra pode ser investigado.
Organo-Silica Membrane Prepared from TEOS-TEVS Modified with Organic-Acid Catalyst for Brackish Water Desalination
Authors: Elma Muthia , Lestari Aptar Eka , Sumardi Anna , Assyaifi Zaini Lambri , Darmawan Adi , Mujiyanti Dwi Rasy , Syauqiah Isna , Rahma Aulia , Suciwati Linda , Mawaddah Yanti
Published: July 2021

The sol gel process is one of the processes used in the manufacture of thin films on membranes because it can control the pore size in the resulting silica matrix. In addition, another way to build membrane size can be done by adding catalysts and precursors to be used. In this study, using a combination of tetraethyl ortho silicate (TEOS) and triethoxy vinyl silane (TEVS) precursors and citric acid as a catalyst to produce a silica matrix with mesoporous size so that it is suitable for application in the desalination process. The organo silica membrane was calcined at 350 ° C for 1 hour using the RTP calcination technique under vacuum, thus preventing the decomposition of carbon in the silica matrix. The membrane was dipcoated 4 times to obtain 4 layers. The FTIR (Fourier-transform Infrared Spectroscopy) test was carried out to see the functional groups on xerogel, namely silanol, siloxane and carbon. In addition, the performance of this membrane is carried out by desalination through pervaporation using 0.3% NaCl feed water with variations in feed air temperature, namely 25 ℃, 40 ℃ and 60 ℃. The resulting flux of air value increased with increasing feed water temperature, namely 6.1; 11.2; and 12.1 kg.m-2h-1 while the resulting salt rejection was 99.72; 99.64 and 99.23%. So that the organo silica membrane is suitable when applied to the desalination process through pervaporation.
DEVELOPMENT OF HIGHER ORDER THINKING SKILLS (HOTS) BASED MATHEMATICS TEST USING THE RASCH MODEL FOR FIRST MIDDLE SCHOOL STUDENTS
Authors:   Universitas Tanjungpura, R Zubaidah , Fitriawan Dona , Halini Halini , Astuti Dwi
Published: July 2021

Specifically, the research objectives are (1) Describe the steps for preparing a HOTSbased mathematics learning outcome test instrument using the Rasch Model, (2) Describe the results of the analysis of test items that meet the characteristics of the items that are feasible at the limited trial stage, (3) Describe the results of the analysis test items that meet the characteristics of the proper items based on the Rasch Model, (4) Describe the characteristics of a good test instrument according to the Rasch Model. This type of research is a 4-D model development research with the steps (1) Define, namely front end analysis, student analysis, concept analysis, task analysis and goal determination, (2) Design (design), namely compiling a grid, determine the form and number of items, formulate questions, determine the length of the test, (3) Develop (development), namely review tests, test trials, analyze test results, improve tests, assemble tests, (4) Disseminate (spread), namely carry out. The research sample was students of class VIII SMPN 3, SMPN 10, and SMPN 20 Pontianak, totaling 188 students. The conclusions are (1) The test development step consists of four stages, namely: the defining stage namely; front end analysis, learner analysis, concept analysis, learning objectives analysis (2) The HOTS-based junior high school mathematics learning outcomes test has the suitability validity of the panelists as many as 30 items and has a very high level of panelist reliability suitability. (3) A total of 25 items have met all the characteristics of the items. (4) Characteristics of the items on the test instrument are feasible according to the Rasch model in this study.
Identification Of Multifunctional Urban Activity Centers In Tokyo
Authors: Boratinskii Vadim I. , Tikhotskaya Irina S.
Published: July 2021

Identification of urban activity centers is among the most important components of the urban structure study, it is necessary for reasonable planning, regulation of traffic flows and other practical measures. The purpose of this paper is to design a complex method to identify urban activity centers based on different but universal data types. In this study, we used social media data (Twitter) since it guarantees regular updates and does not rely on administrative borders and points of interest database that was considered a 'hard' representation of multifunctional urban activities. A large amount of geotagged tweets was processed by means of statistical modelling (spatial autoregression) and combined with the distribution analysis of points of interest. This allowed to identify the local centers of urban activity within 23 special wards of Tokyo more objectively and precisely than when only based on the social media data. Thereafter, delimitated centers were classified in order to define and describe their main functional and spatial characteristics. As a result of the study, railway transport was identified as the main attraction factor of the urban activity; the modern urban structure of Tokyo was identified and mapped; a new comprehensive method for identification of urban activity centers was developed and five classes of urban activity centers were defined and described.
State And Non-State Cross-Border Cooperation Between North Karelia And Its (Un) Familiar Russian Neighbors
Authors: Nielsen Henrik D.
Published: July 2021

Russia has often been seen in a negative light and as a difficult place for foreigners to operate, both currently and in the past. To a large extent, this is also true for Finland, which has fought several wars against its eastern neighbor and whose border with Russia has been closed for years. However, Finland, and in particular North Karelia, also has a long history of cross-border cooperation with Russian partners.

This paper seeks to analyze why North Karelian governmental and NGO actors choose to engage in cross-border cooperation with Russian counterparts and explain why they have been so successful.

The answers are sought via a historical review of the relationship between Finland and Russia, in particular the role and importance of Karelia as a source of both conflict and consolidation. Furthermore, semi-structured interviews with Finnish cross-border cooperation actors are utilized in the analysis. The theoretical approach is grounded in (un)familiarity, which is used to explain the pull-push effects of the border.

In conclusion, it was found that the Finnish actors harbor a historical feeling of connectedness and nostalgia towards the Karelian area which pulls them across the border. Because of the proximity they see cross-border cooperation as a natural extension of their work. Finally, the success is connected to the increased familiarity and close personal relations that have been build up over the years.
Thresholds of Metal and Metalloid Toxicity In Field-Collected Anthropogenically Contaminated Soils: A Review
Authors: Santa-Cruz Javier , Peñaloza Patricia , Korneykova Maria V. , Neaman Alexander
Published: July 2021

Ecotoxicological studies of soil metal toxicity conventionally rely on the use of uncontaminated soils gradually enriched with metals in the form of soluble salts. Although this method is very useful in many ways, it is continually complicated by the difficulty of extrapolating laboratory results to actual field-collected soils exposed to decades of contamination. Although many studies emphasize the importance of using field-contaminated soils for toxicity bioassays, the number of studies actually conducted based on this premise is relatively small. This review provides an in-depth recompilation of data on metal toxicity thresholds in field-contaminated soils. We have summarized the EC10, EC25, and EC50 values for metals, i.e., values of metal concentrations that reduce the response of specific organisms by 10%, 25%, and 50% of the value in uncontaminated soils. In our summary, most studies show that total metal content can predict organismal responses as well as bioavailable fractions. These results are consistent with the intensity/capacity/quantity concept proposed for plant nutrient uptake. In addition, microorganisms are thought to be more sensitive to metals than plants and invertebrates. However, our analysis shows that there is no statistically significant difference between the sensitivity of microorganisms and other organisms (plants and invertebrates) to any metal or metal pool. We expect that this information will be useful for environmental assessment and soil quality decisions. Finally, we encourage future studies to analyze dose-effect relationships in native field-collected soils with varying degrees of metal contamination from long-term anthropogenic pollution.
Saudi Females Beginners’ Attitudes Towards Full-online Learning Through EFL Virtual Classrooms During COVID-19 Pandemic
Authors: Eid Alotaibi Eilaf
Published: July 2021

Mastery of English is indispensable for students to pursue their university major in Saudi Arabia. Therefore, it is mandatory for Saudi undergraduates studying at the preparatory year programs to get high scores in the EFL course to be eligible to enroll in the Bachelor’s degree programs. However, the sudden shift to distance learning worldwide to curb the spread of the COVID-19 pandemic affects the university beginners’ attitudes to learn EFL. This article examines the general perceptions of Jubail University College EFL female students’ towards learning English through full online mode. Also, the study displays the benefits and drawbacks the EFL students have encountered while using the virtual classroom during the pandemic. Their views were investigated through in-depth one-on-one interviews and focused group discussion done virtually by the author. The results reveal that the majority of students have formed negative attitudes toward EFL virtual classrooms and preferred traditional classrooms. In addition, the results present solutions suggested by the participants to enhance the quality of full-online English language teaching, which could be useful for EFL language instructors
Learning Needs of Primary Schools Teachers about First Aid
Authors: ÖRS Mukaddes
Published: July 2021

Purpose: The aim of this research was to determine the knowledge of first aid, and the learning needs surrounding first aid education of teachers working in public primary schools.

Design/Methodology/Approach: This descriptive study was undertaken through a sample of 214 teachers working in 15 public primary schools in Amasya City, Turkey. Data collection was achieved via a questionnaire consisting of items regarding teachers’ characteristics and basic first aid knowledge. One point was given for each correct answer. The data were collected through face-to-face interviews. Statistical analyses were performed using descriptive statistics.

Findings: In total, 47.2% of the primary school teachers whom participated stated that they had had previous training on first aid, and 11.7% teachers felt that their knowledge was sufficient about first aid knowledge and equipment. Overwhelmingly, 70.5% of teachers had been confronted with situations needing fist aid at school. In this study, it was found that teachers had medium-level fist aid knowledge scores. Most teachers answered incorrectly questions regarding foreign body punctures in the abdominal region and nosebleeds.

Highlights: It was revealed that the teachers have insufficient knowledge about first aid, and it was determined that teachers have learning needs relating first aid. Accordingly, it is recommended that training is provided for teachers on first aid through in-service training programs. Moreover, the problem needs to be addressed and the addition of first aid education in the teachers’ training curriculum might be suggested.
BibTeX for the Romanian Language
Authors: Mureșan M.
Published: July 2021

BibTeX was created by Oren Patashnik and Leslie Lamport in 1985 according to https://en.wikipedia.org/wiki/BibTeX and turned out to be a very useful software product. Nevertheless most of the present scientific paper in mathematics and computer science, and not only, are written in English. Our aim was to offer to the Romanian scientific paper writers a variant of the BibTEX whose output agrees with the Romanian language grammar.
Diseño para la producción
Authors: Barreiro Torres Sergio Héctor , Muñoz Marañón Julio A. , Hernández de la Rosa René
Published: July 2021

La temática de este apartado "Diseño para la producción'', parte de la reflexión sobre la categoría estética conferida al diseño en la actualidad la cual se explica o se justifica solamente si este medio artificial creado por el hombre, es el resultado de una auténtica evolución material, que ha implicado para su realización la aplicación de cualidades que hasta hoy en día son consideradas netamente humanas, como ya se mencionó, además del pensamiento creativo y constructivo bajo una intencionalidad predeterminada, como una manifestación o expresión de nuestra sociedad, de nuestra civilización por lo que se deben de incluir sus finalidades, y se le debe dar un sentido todo esto desde una perspectiva holística.
Doenças crônicas não transmissíveis em mulheres com câncer de mama
Authors: Prado da Cruz Lóris Aparecida , Savegnago Mialich Mirele , Silva Bruna Ramos da , Oliveira Gozzo Thais de , Jordão Alceu Afonso , Almeida Ana Maria de
Published: July 2021

Identificar a ocorrência de obesidade, hipertensão arterial e níveis glicêmicos alterados entre mulheres com câncer de mama; avaliar a distribuição destas comorbidades em relação à idade, tempo de diagnóstico do câncer, circunferência da cintura, hormonioterapia e quimioterapia. Estudo transversal com 67 mulheres com câncer de mama. Utilizou-se um instrumento com variáveis sociodemográficas, clínicas, avaliações antropométricas e coleta de sangue para glicemia de jejum. Utilizou-se teste exato de Fisher, Mann-Whitney e Kruskal-Wallis. Dentre as participantes, 34,3% eram pré-obesas e 29,9% apresentavam parâmetros de obesidade leve a grave, 53,7% hipertensas e 20,9% diabéticas. Encontrou-se associação entre idade e hipertensão arterial; circunferência da cintura e hipertensão arterial; níveis glicêmicos e circunferência da cintura; índice de massa corpórea e circunferência da cintura; idade e diabetes mellitus; e idade e circunferência da cintura. Recomenda-se assistência que contemple ações sistematizadas integrando a avaliação e cuidados do câncer de mama e outras comorbidades.
Educação na enfermagem: combater o estigma associado ao transtorno mental
Authors: Santos Ferreira Marcela dos , Duarte Barbosa Cristiane , Bragança Fernandes Patrícia Kelly Caglia
Published: July 2021

O presente estudo objetivou realizar uma revisão sistemática da literatura, norteada pela seguinte questão: existe influência das intervenções educativas na redução do estigma presente em profissionais e estudantes da área da Enfermagem, no período de 2000 a 2018. A revisão sistemática foi executada por meio de busca nas bases de dados Lilacs, Scopus, Medline, Pubmed e Scielo. Apesar da grande estabilidade que as atitudes estigmatizantes apresentam, tornando-as difíceis de serem modificadas, foi possível observar, com base nos resultados encontrados nesta revisão sistemática, transformações atitudinais associadas ao sofrimento psíquico, em discentes e profissionais de enfermagem, após intervenções educativas. Ao se considerar as pesquisas empíricas e as reflexões de teóricos sobre o assunto entende-se que os estudos nesse campo é uma estratégia de combate a estigmatização promissora e que merece ser expandida.
Nível de e-literacia em saúde em alunos do ensino secundário
Authors: Araújo Isabel , Jesus Rui , Pombal Fernanda , Teixeira Lurdes , Fernandes Filipe , Sousa Lia
Published: July 2021

Descrever o nível de e-literacia em saúde, de um grupo alunos do ensino secundário, de uma região a norte de Portugal e correlacionar as variáveis sociodemográficas e contextuais com o nível de e-literacia em saúde dos alunos. Estudo quantitativo, descritivo, correlacional e transversal, com amostragem por conveniência (n=1060 alunos do ensino secundário). A colheita de dados decorreu por questionário. Foi realizada análise estatística descritiva e inferencial, através do software IBM SPSS 25. Os alunos manifestaram bons níveis de e-literacia em saúde. A dimensão de “pesquisa de informação” obteve valores superiores aos da dimensão de “utilização da informação” encontrada (3,49 e 3,41 respectivamente). Os rapazes detêm mais e-literacia em saúde (3,61 pontos). Os alunos fazem pesquisa na internet sobre saúde, mas não confiam na informação obtida, cabe aos profissionais de saúde orientar e validar os sites utilizados.
Ações educativas para identificação correta do paciente: relato de experiência
Authors: Malta da Costa Gabriele , Serra Batista Paloma Vitória , Ferreira de Almeida Luana , Gonçalves Rocha Ronilson , Ferreira Barreto Pires Bruna Maiara , Galdino de Paula Vanessa
Published: July 2021

Relatar a experiência vivenciada por discentes e docentes de enfermagem na realização de atividades extensionistas para o aumento da adesão à identificação correta do paciente. Relato de experiência acerca da importância da identificação correta do paciente realizadas em um hospital universitário do Estado do Rio de Janeiro de setembro de 2019 a março de 2020. Participaram profissionais de saúde, pacientes e acompanhantes. Para profissionais de saúde, foram desenvolvidos treinamentos interativos. Para pacientes e acompanhantes, elencou-se orientações acerca da importância da identificação do paciente. Realizados dezoito treinamentos, a maioria com técnicos de enfermagem (54 - 37,76%) e enfermeiros (23 - 16,08%). Alcançadas 2.050 orientações, sendo com 998 (48,68%) pacientes. As atividades ocorreram em 32 unidades de internação. Pode-se contribuir com atividades da Meta 1 de Segurança do Paciente, além de destacar a importância de Projetos de Extensão Universitária para melhor assistência.