bluuebunny/crossref_metadata_2025_split huggingface dataset:
Epistemologia do método das partidas dobradas: considerações sobre aspectos históricos e métodos de ensino
Authors: Kettle Waggnoor Macieira , Kettle Lucas Barros 
Published: September 2018

Este artigo tem por objetivo apresentar algumas reflexões sobre a epistemologia do Método das Partidas Dobradas (MPD), em seus aspectos teórico-conceituais e históricos, bem como métodos utilizados no processo de ensino e aprendizagem. Por meio de levantamento bibliográfico, de abordagem descritiva e qualitativa, o artigo expõe algumas teorias oriundas de estudos que fundamentaram o MPD em seusprimórdios. Isto se apresenta no contexto da Escola Europeia, a qual antecedeu a Escola Norte-Americana que, por sua vez, adotou o MPD como uma mera convenção contábil verificada e aceita pelas empresas até os dias atuais. Aspectos sobre o ensino também tiveram o seu lugar no artigo, no tocante a métodos adotados no processo educativo e de formação dos futuros contadores. Métodos como o do aluno participativo; o da sequência dos pontos; aplicação e origem de recursos; jogos de empresas; e causa e efeito.
Influence of Learning Design of the Formation of Online Communities of Learning
Authors: Jan Shazia K , Vlachopoulos Panos 
Published: September 2018

This paper presents the findings of a study on a fully online Bachelor’s level course in Health Sciences at a European University conducted to explore the influence of learning design on the formation and evolution of different types of communities of learning. The impetus for the study came from the well-established effectiveness of community-based learning, a need for understanding learning design and analytics within networked structures and, the lack of theoretical grounding for social network analysis (SNA) in previous literature. Our study uses the Integrated Methodological Framework (IMF) which employs SNA as the key methodology for exploring community-based learning in light of the Communities of Practice (CoP) and Community of Inquiry (CoI) frameworks. The course comprised of three differently designed successive discussion forums spanning three weeks each. Network diagrams and SNA measures clearly showed the impact of the different learning designs on student engagement in the discussion forums. Based on CoP and CoI structural components within the IMF, a comparative analysis of whole-network properties of the three networks indicated the formation of a CoP, initiated and mediated by the tutor in discussion 1, sustained by the students in discussion 2, and disintegrated due to lack of guidance and facilitation in discussion 3. Qualitative analysis on the content of discussion posts revealed the importance of group oriented messages in the formation of the CoP. The paper discusses findings in terms of implications for learning design and analytics in online learning and the role of the tutor in community formation.
Effect of Communication Management on Distance Learners’ Cognitive Engagement in Malaysian Institutions of Higher Learning
Authors: Kayode Bakare Kazeem 
Published: September 2018

Rapid development of communication tools has brought about contentious issues in communication management in distance learning (DL) programs. The aim of this study is to investigate the relationships between communication management indicators, namely, communication practices, communication tools, and students' cognitive engagement in distance learning programs. A conceptual framework for communication management was developed from Moore’s Transactional Distance Learning Theory (TDLT) and other existing literature. This study was conducted using quantitative research design. A questionnaire (a survey method) was used to elicit responses from 450 randomly selected in-service teachers from three Malaysian Public universities that offer blended mode distance-learning programs. Data analysis was conducted using Analysis of Moment Structures (AMOS) software to test the structural path of communication practices, communication tools, and students' cognitive engagement. Tests of hypotheses provided evidence of measures of fit statistics. The findings provide evidences that effective communication practices and communication tools have strong positive influence on distance students’ cognitive engagement.
ANALISIS SEQUENTIAL EXPLANATORY PARTISIPASI SISWA DALAM PELESTARIAN LINGKUNGAN DITINJAU DARI ASPEK PERSEPSI SISWA TENTANG SEKOLAH BERBUDAYA LINGKUNGAN
Authors: Istiana Rita , Islamiah Nani Inri , Sutjihati Susi 
Published: September 2018

Abstract

This research has been conducted on March to November 2016, the study population is students at state senior high school 5 and state senior high school 8 cities Bogor. The research method uses sequential analysis explanatory research with the aim to determine the level of correlation between the variables of students' perceptions of the school environment cultured with student participation in environmental conservation and explore factors - factors that affect the level of student participation in environmental conservation. Based on the research and analysis of data, it can be concluded that there is a very low among school students' perceptions about the environment cultured with student participation in environmental conservation. The relationship shown by the regression equation Y = 111.08 + 0.074 X with a correlation coefficient rx = 0.042 and determination coefficient rxÂ² = 0.002. The factors affecting the level of student participation in the preservation of the environment is a factor internal and eksternal. Internal factor is factor self-awareness, knowledge and motivation, eksternal factor is factor intercomunication, peers, family and community.

Keyword : perceptions of the school environment cultured, participation in environmental conservation

Abstrak

Penelitian ini telah dilakukan pada Maret sampai November 2016, populasi penelitian ini adalah siswa- siswi di SMA Negeri 5 dan SMA Negeri 8 Kota Bogor. Metode penelitian menggunakan analisis sequential explanatory dengan tujuan penelitian untuk mengetahui tingkat korelasi antara variabel persepsi siswa tentang sekolah berbudaya lingkungan dengan partisipasi siswa dalam pelestarian lingkungan dan menggali factor â€“ factor yang mempengaruhi tingkat partisipasi siswa dalam pelestarian lingkungan. Berdasarkan hasil penelitian dan analisis data, dapat ditarik kesimpulan bahwa terdapat hubungan yang sangat rendah antara persepsi siswa tentang sekolah berbudaya lingkungan dengan partisipasi siswa dalam pelestarian lingkungan. Hubungan tersebut ditunjukan oleh persamaan regresi Å¶ = 111,08 + 0,074 X dengan koefisien korelasi rx = 0,042 dan koefisien determinasi rxÂ² = 0,002. Adapun factor factor yang mempengaruhi tingkat partisipasi siswa dalam pelestarian lingkungan adalah faktor interen dan eksteren. Faktor interen yaitu faktor kesadaran diri sendiri, pengetahuan dan motivasi, faktor eksteren yaitu faktor pergaulan, teman sebaya, keluarga dan masyarakat.

Kata Kunci : persepsi siswa tentang sekolah berbudaya lingkungan, partisipasi pelestarian lingkungan
The Phosphorus Transfer Continuum: A Framework for Exploring Effects of Climate Change
Authors: Forber K. J. , Withers P. J. A. , Ockenden M. C. , Haygarth P. M. 
Published: September 2018

Core Ideas
Climate change effects on the P transfer continuum are examined.
P export and eutrophication will likely increase under a changing climate.
Climate change effects on catchment P processing are complex and poorly understood.
Modeling of P flows and catchment P buffering is needed to inform management.
Research should consider the effects of climate change on each tier of the continuum.
Phosphorus inputs to agriculture and their fate in the environment contribute to poor water quality and degradation of linked ecosystem services at great cost to society. Climate change is likely to alter the forms and timings of P fluxes from land to water and their ecological impact, the effects of which are uncertain and need to be considered to inform future catchment management for eutrophication control. The P transfer continuum is an established conceptual model that we propose as a suitable framework to consider the potential effects of climate change on catchment P transfer. Consideration of this continuum suggests that predicted changes in temperature and precipitation will likely increase P transfer and associated eutrophication costs in some regions. Further research should examine climate change effects on each tier of the continuum to inform the necessary land management adaptations and transformations to ensure future food system P efficiency and resilience.
Potato Tuber Yields in Semi‐Arid Environments are Increased by Tillage and Mulching Practices
Authors: Hou Xianqing , Li Rong 
Published: September 2018

Core Ideas
Tillage systems and mulching practices affected potato production.
Polythene film and straw mulch significantly improved soil water‐temperature status.
Tillage and mulching practices increased emergence and promoted seedling growth.
No‐tillage and subsoiling with straw mulch significantly increased potato tuber yield.
A 2‐yr field study was conducted in semiarid region of China, from 2014 to 2015 to determine the impact of tillage (conventional tillage [CT], subsoiling [ST], and no‐tillage [NT]) and mulching practices (transparent polythene film mulch (PM), and maize [Zea mays L.] straw mulch [SM], no mulch [NM]) on soil moisture conservation in the fallow period, variations of soil moisture profile, topsoil temperature, growth in the seedling period, the potato (Solanum tuberosum L.) tuber yield. Among the tillage systems, the mean soil water storages in SM and PM plots were increased by 6.3 and 5.9%, respectively, compared to NM plot. The soil water storage was significantly 7.6% higher during potato seedling growth in the SM than the NM treatment. The polythene film mulch increased the mean topsoil temperature 2.4°C, whereas the straw mulch reduced the temperature 3.0°C during emergence. Meanwhile, PM and SM were more effective at increasing the emergence, plant height, stem diameter , and biomass accumulation at seedling stage of potato, compared with NM. Among all the tillage and mulching treatments, the highest mean potato tuber yields and marketable tuber rates were obtained under the case of subsoiling in combination with straw mulch (ST×SM) and no‐tillage in combination with straw mulch (NT×SM), which were significantly higher by 41.0, 35.3, and 13.7%, 6.5% than that of conventional tillage in combination with no mulch (CT×NM). The conservation tillage (no‐tillage and subsoiling) combined with straw mulch has a great potential to be adopted in the semiarid Loess Plateau region.
Vadose Zone Gas Migration and Surface Effluxes after a Controlled Natural Gas Release into an Unconfined Shallow Aquifer
Authors: Forde O.N. , Mayer K.U. , Cahill A.G. , Mayer B. , Cherry J.A. , Parker B.L. 
Published: September 2018

Core Ideas
Subsurface gas migration results in localized surficial CH4 releases.
Surficial CH4 emissions show pronounced temporal variations.
Methane concentrations in soil gas exceed lower explosive limits at low leakage rates.
Increasing CO2 effluxes and stable C isotope signatures indicate vadose zone CH4 oxidation.
Instantaneous surficial effluxes do not indicate the magnitude of subsurface gas leakage rates.
Shale gas development has led to concerns regarding fugitive CH4 migration in the subsurface and emissions to the atmosphere. However, few studies have characterized CH4 migration mechanisms and fate related to fugitive gas releases from oil or gas wells. This paper presents results from vadose zone gas and surface efflux monitoring during a natural gas release experiment at Canadian Forces Base Borden, Alliston, Ontario, Canada. Over 72 d, 51 m3 of natural gas (>93% CH4) was injected into a shallow, unconfined sand aquifer at depths of 4.5 and 9 m. Methane and CO2 effluxes in combination with soil gas concentrations and stable C isotopic signatures were used to quantify the spatiotemporal migration and fate of injected gas. Preferential gas migration pathways led to vadose zone hot spots, with CH4 concentrations exceeding the lower explosive limit (5% v/v). From these hot spots, episodic surface CH4 effluxes (temporally exceeding 2500 μmol m−2 s−1 [3465 g m−2 d−1]) occurred during active injection. Higher injection rates led to increased average CH4 effluxes and greater lateral migration, as evidenced by a growing emission area approaching 25 m2 for the highest injection rate. Reactive transport modeling showed that high CH4 fluxes resulted in advection‐dominated migration and limited CH4 oxidation, whereas lower CH4 effluxes were diffusion dominated with substantial CH4 oxidation. These results and our interpretations allowed us to develop a conceptual model of fugitive CH4 migration from the vadose zone to the ground surface.
Prevention of fetal growth restriction in placental insufficiency
Authors: Khachatryan Z. V. , Lomova N. A. , Khachatryan A. A. , Tyutyunnik V. L. , Kan N. E. 
Published: September 2018

The occurrence and development of such complications of pregnancy as preeclampsia, placental insufficiency, fetal growth restriction can be mediated by the systemic vascular damage. Understanding the pathophysiological mechanisms in the mother-placenta-fetus system contributes to the improvement of diagnostic methods and the selection of pathogenetically valid therapy for certain obstetric complications. In the systemic inflammatory response syndrome accompanying obstetric complications, the uncontrolled and excessive activation of proinflammatory mediators occurs, which leads to generalized tissue damage and development of multiple organ failure.The use of antiplatelet agents at a preventive dose in pregnant women with high risk of placental insufficiency and fetal growth restriction contributes to the reduction of systemic and placental blood flow disorders by affecting the vascular endothelium, increasing the synthesis of prostacyclin and nitric oxide, thereby implementing its angioprotective properties and increasing blood flow in the arteries and existing collaterals.The obtained data showed that adding of dipyridamole to the algorithm for managing pregnant women with high risk of placental insufficiency and fetal growth restriction, starting from the II trimester of gestation allows to reduce the risk of endotheliopathy and thrombophilia, improve obstetric and perinatal outcomes.
Structural and Biological Overview of Boron-containing Amino Acids in the Medicinal Chemistry Field
Authors: García Antonio Abad , Rayevsky Alexey , Andrade-Jorge E. , Trujillo-Ferrara José G. 
Published: September 2018

Background:
Amino acids are the basic structural units of proteins as well as the
precursors of many compounds with biological activity. The addition of boron reportedly induces
changes in the chemical-biological profile of amino acids.

Methods:
We compiled information on the biological effect of some compounds and discussed
the structure-activity relationship of the addition of boron. The specific focus presently
is on borinic derivatives of α-amino acids, the specific changes in biological activity caused
by the addition of a boron-containing moiety, and the identification of some attractive compounds
for testing as potential new drugs.

Results:
Borinic derivatives of α-amino acids have been widely synthesized and tested as potential
new therapeutic tools. The B-N (1.65 A°) or B-C (1.61 A°) or B-O (1.50 A°) bond is
often key for the stability at different pHs and temperatures and activity of these compounds.
The chemical features of synthesized derivatives, such as the specific moieties and the logP,
polarizability and position of the boron atom are clearly linked to their pharmacodynamic and
pharmacokinetic profiles. Some mechanisms of action have been suggested or demonstrated,
while those responsible for other effects remain unknown.

Conclusion:
The increasing number of synthetic borinic derivatives of α-amino acids as well
as the recently reported crystal structures are providing new insights into the stability of these
compounds at different pHs and temperatures, their interactions on drug targets, and the ring
formation of five-membered heterocycles. Further research is required to clarify the ways to
achieve specific synthesis, the mechanisms involved in the observed biological effect, and the
toxicological profile of this type of boron-containing compounds (BCCs).
Формирование художественно-коммуникационной среды города Астаны в контексте реализации градостроительного проекта Кисе Курокавы
Authors: Tyurin Sergey M. , Nazarov Yuri V. , Kornilova Alla Aleksandrovna 
Published: September 2018

The article is devoted to the interrelation of the master plan for the development of Astana, developed by the Japanese architect Kisho Kurokawa, and the peculiarities of the formation of the artistic and communication environment of the new capital of the Republic of Kazakhstan. The article presents the philosophical ideas of symbiosis and metabolism of Kisho Kurokawa, which are the basis of the development concept of Astana. In the practice of designing the urban environment, they were implemented through the absence of a dominant style, numerous repetitions, the use of techniques of eclecticism, hyper-symbolism and historicism.
The specificity of the formation of artistic and communication environment of the left and right Bank of the Yessil river is considered. The attention is drawn to the fact that if the territorial area of theleft Bank is a new administrative and social center, built in a short period of time on freeland, the right Bank is an area of historical development, that has undergone reconstruction and has been included in the overall trend of the city.
It is emphasized that the monumental character of Astana architecture is combined with the originality of the organization of urban spaces. The article presents the names of masters - architects, sculptors, designers of foreign countries and Kazakhstan, who actively participated in the design of the artistic and communication environment of the capital.
The results of the study are presented: 1) the characteristic features of the formation of the artistic and communication environment of the capital in the context of the implementation of the Kisho Kurokawa project are revealed; 2) the types of objects that make up the basis of the artistic and communication environment of the city are classified; 3) the types of advertising and information carriers, the most suitable for the city with a specific severe sharply continental climate and steppelandscape.
It is concluded that the organization of the urban space of Astana as a whole, and the formation of its artistic and communication environment of the XXI century have a pronounced creative vector.
Kepadatan dan Tingkat Infeksi Serkaria Schistosoma japonicum pada Keong Oncomelania hupensis lindoensis dengan Kasus Schistosomiasis di Daerah Endemis Schistosomiasis, Sulawesi Tengah
Authors: Nurwidayati Anis , Widjaja Junus , Samarang Samarang , Nurjana Made Agus , Tolistiawaty Intan , PFS Phetisya 
Published: September 2018

AbstractSchistosomiasis in Indonesia only found in Napu and Bada Highlands, Poso district and Lindu Highlandsin Sigi district, Central Sulawesi Province. Schistosomiasis in Indonesia caused by Schistosoma japonicumand Oncomelania hupensis lindoensis is the intermediate snail host. The mapping of snail foci areas in2017 showed that there was a significant change in the spread of the snail's foci. This paper aimed todescribe the density and infection rate of S. japonicum cercariae in the snail host in the endemic areasof schistosomiasis in Central Sulawesi Province. The mean O.hupensis lindoensis snail density in Napuranged from 0.9 to 6.6/m2, with mean rates of cercariae infections ranging from 0.4% to 21.4%. The snaildensity average in Lindu ranging from 3/m2 to 69,1/m2, with 4.4%-72.9% of cercariae infections. In badathe snail density ranged from 0.1 to 4.9/m2, with mean rates of cercariae infections ranging from 0% to14.9%. Bivariate analysis showed there was no correlation between snail density and cercariae infectionrate with schistosomiasis case (p value> 0.05).Keywords : Schistosomiasis, density, infection rate, Oncomelania hupensis lindoensis, Central Sulawesi
AbstrakSchistosomiasis di Indonesia hanya ditemukan di Propinsi Sulawesi Tengah, yaitu Dataran Tinggi Napudan Dataran Tinggi Bada, Kabupaten Poso serta Dataran Tinggi Lindu, Kabupaten Sigi. Schistosomiasisdi Indonesia disebabkan oleh Schistosoma japonicum dengan hospes perantara keong Oncomelaniahupensis lindoensis. Pemetaan daerah fokus pada tahun 2017 menunjukkan bahwa terdapat perubahanyang signifikan dalam penyebaran fokus keong. Tulisan ini bertujuan untuk menggambarkan kepadatandan infection rate serkaria S.japonicum pada keong perantara schistosomiasis di wilayah endemisschistosomiasis di Provinsi Sulawesi Tengah. Rerata kepadatan keong O.hupensis lindoensis di Napuberkisar dari 0,9 – 6,6/m2, dengan rerata tingkat infeksi serkaria berkisar antara 0,4% sampai 21,4%, diLindu kepadatan keong berkisar antara 3/m2 sampai 69,1/m2, dengan tingkat infeksi serkaria 4,4%¬72,9%,dan di Bada kepadatan keong berkisar antara 0,1 – 4,9/m2, dengan rerata tingkat infeksi serkaria berkisarantara 0 % sampai 14,9%. Analisis bivariat menunjukkan tidak ada korelasi antara kepadatan keong dantingkat infeksi serkaria dengan jumlah kasus schistosomiasis nilai p value > 0.05.Kata kunci: Schistosomiasis, kepadatan, tingkat infeksi, Oncomelania hupensis lindoensis, SulawesiTengah
Algo más que un espectáculo... Consideraciones sobre la exposición "El espectáculo está en la calle". El cartel moderno francés: Cassandre, Colin, Carlu y Loupot
Authors: Torres Aguilar Francisca 
Published: September 2018

Ciertamente, si hoy en día nuestras calles emiten una cantidad de innumerables signos y señales, medios pasivos que nos hablan desde su quietud, no dejan de sorprendernos las imágenes que nutrieron las marquesinas y muros de la misma ciudad en el pasado. Reunir estas imágenes en una sala de exposiciones puede parecer paradójico sí tenemos en cuenta que dichos mensajes tienen una finalidad meramente efímera y abierta en el espacio urbano. Esto no ha impedido que la exposición de carteles franceses, que durante un mes se ha exhibido en la Sala de Exposiciones del Palacio Episcopal de Málaga haya sido uno de los eventos culturales más notables del año 2002.
Current Topics in Assisted Reproduction in the Czech Republic
Authors: Žáková Jana , Crha Igor , Jelínková Ladislava , Mardešic Tonko , Pastor Zlatko , Trávník Pavel , Kempisty Bartosz , Ventruba Pavel , Ješeta Michal 
Published: September 2018

Abstract
Assisted reproduction is a very dynamic part of reproductive gynaecology with fast changes in therapeutic approaches resulting from intensive research supported by private or public companies. This progress brings also new questions regarding ethical, legal or therapeutic issues. At the 26th Czech-Slovak symposium of assisted reproduction in Brno, several interesting topics of assisted reproduction were presented. During two days, more than 350 specialists discussed current topics related to gynaecology, embryology, andrology, genetics and sexology. From this fruitful discussion we chose the following topics that we consider to be the most important: (1) “Soft” versus “standard” stimulation protocols for IVF (2) Use of exogenous and endogenous progestins in IVF stimulation protocols (3) Cryopreservation and transplantation of ovarian tissue - state of the art and situation in the Czech Republic (4) Selection of spermatozoa with fragmented DNA: practical recommendations (5) Artificial activation of oocytes (8) Access of single and lesbian women to assisted reproduction technologies and possibility of their reproduction in the Czech Republic. Panel conclusions were presented at the end of the conference, which had great attendance, invoked lively commentaries and produced some definitive consensus. Certain issues remained inconclusive and these matters will be the subject of further discussion in future. This is a summary of the most important theses from this field in the Czech Republic in 2017.