bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimating Spatial Differences in Methane Emissions to Identify Sustainable Rice Sources
Authors: Tsiboe Francis , Nalley Lanier , Brye Kristofor , Dixon Bruce , Shew Aaron , Tack Jesse , Barkley Andrew 
Published: February 2018

Core Ideas
Commercial rice buyers and consumers are starting to demand more environmentally sustainable rice.This study uses historical data to estimate spatial differences in GHG emissions in rice production.Soil texture is the largest driver of methane emissions in rice production.Increased yields cannot make up for loss in methane use efficiencies when producing rice on loamy soils.
Commercial rice (Oryza sativa L.) buyers and a growing consumer market for sustainable agricultural products are driving agriculture to be more conscious about production practices and associated environmental effects, such as greenhouse gas emissions. Globally rice production has been identified as a significant source of atmospheric methane (CH4) emissions. This study extends current knowledge by using a procedure to quantify spatial differences in CH4 emissions as well as CH4 efficiency levels (kg rice [kg CH4–C]‐1) across the mid‐southern United States, where over 75% of all US rice is produced. This study focuses on existing rice production practices that are known to directly affect CH4 emissions: variety selection, crop rotation, and soil texture. Historical data on varietal selection, crop rotations, and soil texture were used to estimate CH4 emissions from 2005 through 2014. Results showed that rice produced on clay‐textured soils with a rice–soybean rotation sown with a hybrid variety has the largest CH4 emissions efficiency among the management practice combinations evaluated. Results also demonstrated that any deviation from this optimal combination cannot be mitigated through realistic increases in yields, as it would take a 177% increase in yield for the hybrid–clay–rice to achieve the same efficiency as the hybrid–clay–soybean [Glycine max (L.) Merr.] combination. Results of this study provide commercial rice buyers, producers, and consumers with critical information regarding the drivers of spatial variations in sustainable rice production. Furthermore, these results give insights to producers and policymakers regarding which production practices and locations could benefit from increased demand for sustainable products and more restrictive environmental policies.
Stability of Indicators for Net Soil Nitrogen Mineralization in Tobacco Rotation and Tillage Systems
Authors: Zou Congming , Pearce Robert C. , Grove John H. , Coyne Mark S. , Roualdes Edward A. , Li Yan 
Published: February 2018

Core Ideas
Relative effects of management on net soil N mineralization were stable across three years.
Soil C and N fractions contribute variably to predicting N mineralization in different rotation systems.
Soil organic C was the overall best predictor for net N mineralization among tobacco rotation systems.
Measuring biological net soil nitrogen mineralization (NSNM) can assist nitrogen (N) fertility management in agroecosystems, but the time and apparatus required for this assessment limits measurement frequency. Stable NSNM predictors that could be rapidly measured to compare systems would be extremely useful. We compared the effects of crop and soil management on NSNM from 2011 to 2013 and evaluated several carbon (C) and N indices including particulate organic carbon (POC), particulate organic nitrogen (PON), permanganate oxidizable carbon (POXC), soil organic carbon (SOC), and soil total nitrogen (STN) as NSNM indicators. Soil (0 to 10 and 10 to 20 cm depths) was collected from six long‐term burley tobacco (Nicotiana tobacum L.) tillage and rotation systems. Net soil nitrogen mineralization was estimated by a 120‐d laboratory incubation. The relative effects of management on NSNM among these systems were stable across 3 yr, which suggested NSNM measurement can be reduced to that frequency when NSNM is used to compare different crop and soil management. The soil C and N fractions contributed variably to predicting soil N mineralization in the different rotation systems, but SOC (which can be calculated from soil organic matter, a common index in the routine test package of many soil testing laboratories) was the best overall NSNM predictor in this study.
Magnetite synthesis from ferrous iron solution at pH 6.8 in a continuous stirred tank reactor
Authors: Mos Yvonne M. , Zorzano Karin Bertens , Buisman Cees J. N. , Weijma Jan 
Published: February 2018

Abstract
Partial oxidation of defined Fe2+ solutions is a well-known method for magnetite synthesis in batch systems. The partial oxidation method could serve as basis for an iron removal process in drinking water production, yielding magnetite (Fe3O4) as a compact and valuable product. As a first step toward such a process, a series of experiments was carried out, in which magnetite was synthesized from an Fe2+ solution in a 2 L continuous stirred tank reactor (CSTR) at atmospheric pressure and 32 °C. In four experiments, elevating the pH from an initial value of 5.5 or 6.0 to a final value of 6.8, 7.0 or 7.5 caused green rust to form, eventually leading to magnetite. Formation of NH4+ in the reactor indicated that NO3− and subsequently NO2− served as the oxidant. However, mass flow analysis revealed an influx of O2 to the reactor. In a subsequent experiment, magnetite formation was achieved in the absence of added nitrate. In another experiment, seeding with magnetite particles led to additional magnetite precipitation without the need for a pH elevation step. Our results show, for the first time, that continuous magnetite formation from an Fe2+ solution is possible under mild conditions, without the need for extensive addition of chemicals.
Influencing the Conversation About Masculinity and Suicide: Evaluation of the Man Up Multimedia Campaign Using Twitter Data
Authors: Schlichthorst Marisa , King Kylie , Turnure Jackie , Sukunesan Suku , Phelps Andrea , Pirkis Jane 
Published: February 2018

Background
It has been suggested that some dominant aspects of traditional masculinity are contributing to the high suicide rates among Australian men. We developed a three-episode documentary called Man Up, which explores the complex relationship between masculinity and suicide and encourages men to question socially imposed rules about what it means to be a man and asks them to open up, express difficult emotions, and seek help if and when needed. We ran a three-phase social media campaign alongside the documentary using 5 channels (Twitter, Facebook, Instagram, YouTube, and Tumblr).

Objective
This study aimed to examine the extent to which the Man Up Twitter campaign influenced the social media conversation about masculinity and suicide.

Methods
We used Twitter insights data to assess the reach of and engagement with the campaign (using metrics on followers, likes, retweets, and impressions) and to determine the highest and lowest performing tweets in the campaign (using an aggregated performance measure of reactions). We used original content tweets to determine whether the campaign increased the volume of relevant Twitter conversations (aggregating the number of tweets for selected campaign hashtags over time), and we used a subset of these data to gain insight into the main content themes with respect to audience engagement.

Results
The campaign generated a strong following that was engaged with the content of the campaign; over its whole duration, the campaign earned approximately 5000 likes and 2500 retweets and gained around 1,022,000 impressions. The highest performing tweets posted by the host included video footage and occurred during the most active period of the campaign (around the screening of the documentary). The volume of conversations in relation to commonly used hashtags (#MANUP, #ABCMANUP, #LISTENUP, and #SPEAKUP) grew in direct relation to the campaign activities, achieving strongest growth during the 3 weeks when the documentary was aired. Strongest engagement was found with content related to help-seeking, masculinity, and expressing emotions. A number of followers tweeted personal stories that revealed overwhelmingly positive perceptions of the content of the documentary and strongly endorsed its messages.

Conclusions
The Man Up Twitter campaign triggered conversations about masculinity and suicide that otherwise may not have happened. For some, this may have been game-changing in terms of shifting attitudes toward expressing emotions and reaching out to others for help. The campaign was particularly effective in disseminating information and promoting conversations in real time, an advantage that it had over more traditional health promotion campaigns. This sort of approach could well be adapted to other areas of mental (and physical) health promotion campaigns to increase their reach and effectiveness.
Wykluczenie społeczne – słowo jako symbol określające naturę człowieczeństwa
Authors: Bałandynowicz Andrzej 
Published: February 2018

Proces obiektywnego wykreślania znaczenia pojęć-symboli odgrywa istotną rolę w edukacji, uczeniu, wychowaniu i powszechnej socjalizacji człowieka. Jest terenem zmagań transkulturowych, które prowadzić winny do obnażenia całkowitej prawdy o człowieku, rozpoznawaniu jego miejsca w historii świata. Ponadto nazywanie prawdy o sobie rodzi zaufaniei odpowiedzialność, a tym samym wyzwala stan afirmacji dla porządku prawa i sprawiedliwego państwa. Drogą autotelicznych przeżyć, wewnętrznych przeobrażeń i proaktywnej świadomości, ukierunkowuje się na podstawie języka i uniwersum symbolicznego, wzrastanie osobowe pozwalające integrować człowieka z otoczeniem, a nie tworzenie cywilizacji upadku oparte o niewolne istnienie. To słowo-klucz sprawia, iż ludzie spychani poza pole symboliczne i imaginarium pozbawieni są wolności emocjonalnej i prawa do swobodnego wyboru oraz własnej odpowiedzialności za czyn w celu zapewnienia wolności dla pozostałej części społeczeństwa, której wyobraźnia, percepcja, doznania i odczucia karmione są nienawiścią, pogardą i totalną izolacją.
Perspektywa jakości życia zabójcy – krytyczna dyskusja znaczenia wielokontekstualności doświadczeń
Authors: Żeromska- Charlińska Joanna 
Published: February 2018

Autorka porusza problematykę starzenia się skazanego, odsłaniając sens jego dualności: zaawansowanie wiekowe i izolację więzienną. Dyskusje dotyczące prób propagowania rozmytej idei troski o współcześnie funkcjonujących starszych w zakładach karnych budzą niepokój. Celem badań była wizja potrzeb, odpowiadających realnym uwarunkowaniom seniora z perspektywy jego narracji. Przedmiotem eksploracji natomiast było zjawisko specyficznego postrzegania i przeżywania czasu przez osadzonego, w szczególności zdarzeń zwrotnych. Intencją badaczki było wyodrębnienie tego, co było dotychczas niedostrzegalne. Tekst ukazuje analizę biografii osoby, w życiu której pojawiły się momenty kryzysowe, interpretowane poprzez włączenie ich w fabułę historii o życiowych przełomach. Wobec opisanego tła, dodatkową „ramą” doprecyzowującą intencje hermeneuty była zastosowana epifania jako doświadczenie jedyne w sobie, oryginalne, dzielące życie seniora na „przed” i „po”, na „wtedy” i „teraz”.
Nuorten mielenterveyspalvelut – määrä, tarjonta ja kohdentuminen Uudenmaan alueella
Authors: Hedman Johanna , Vastamäki Marjut , Joffe Grigori 
Published: February 2018

Nuorten pahoinvointi on ollut keskeisenä huolena viimeaikaisessa tutkimuksessa ja julkisessa keskustelussa. Erityisesti lastensuojelun asiakaslapsille kasautuu paljon kuormittavia tekijöitä. Nuoria lähellä olevat palvelut sekä varhainen puuttuminen ovat tehokkaimpia lisäämään yhteiskuntaan kiinnittymistä. Suomessa on käynnissä laaja palvelurakenneuudistus, mutta muutoksen tueksi tarvittava tutkimustieto on kuitenkin puutteellista.
Tutkimuksessa kuvataan nuorten mielenterveyspalveluita Uudenmaan alueella vuonna 2014. Kaikki Uudenmaan alueen nuorille tarkoitetut mielenterveyspalvelut kartoitettiin ja toiminnot luokiteltiin nuorille sovelletulla ESMS-R-työkalulla. Palveluita tarkastellaan lukumäärän, monipuolisuuden ja avohoidon henkilöstöresurssien perusteella sekä suhteutetaan lastensuojelun asiakasnuorten määrään. Nuorten hyvinvoinnin riskitekijät ja palveluiden monipuolisuus korreloivat alueen väkiluvun kanssa. Avohoidon henkilöstön resursointi ei ollut suhteessa väkimäärään, lastensuojelun avohuollon asiakkaisiin tai kodin ulkopuolelle sijoitettuihin. Lisäksi monilla alueilta puuttuivat kokonaan esimerkiksi päivätoimintojen ja liikkuvan avohoidon palvelut.
Tarkastelun perusteella alueen nuorten mielenterveyspalveluiden avohoito vaikuttaisi eriarvoiselta ja sattumanvaraiselta. Tulokset ovat tarpeen suunniteltaessa palveluiden kehittämistä siten, että kaikilla nuorilla on tarjolla yhtäläisiä palveluita kotikunnasta riippumatta. Nämä asiat tulisi huomioida myös tulevassa sosiaali- ja terveyspalveluiden uudistuksessa.
PERBEDAAN BERMAKNA KADAR SERUM AMILOID A ANTARA STENOSIS KORONER DIBANDINGKAN BUKAN STENOSIS KORONER
Authors: Sudana I Nyoman G , Setyawati Setyawati , Sukorini Usi 
Published: February 2018

Coronary stenosis is one of the major causes of death from heart disease. The gold standard of coronary stenosis diagnosis is established with angiography, however it is invasively, complicated and expensive. Serum Amyloid A (SAA) is an acute phase proteinthat appears as chronic and acute inflammatory agent that is specific to the process of stenosis development. Serum Amyloidal A test method is noninvasive, relatively easy and affordable. The aim of this study was to know the differences of Serum Amyloid A levels in patients with nonstenosis and coronary stenosis in Dr. Sardjito General Hospital Yogyakarta by determination. The study is a case control study. The samples were selected consecutively with typical chest pain, were divided into two (2) groups of nonstenosis and stenosis by coronary angiography test. The principal of the Serum Amyloid A test is ELISA method. Nonstenosis and coronary stenosis groups were analyzed by mean of Serum Amyloid A level based on the angiography test. The data were analyzed with Independent t-test, odds ratio with a significancy of p <0.05 and confidence interval 95%. The samples of this study consisted of 60 patients, divided into nonstenosis and coronary stenosis. The analysis of Independent t tests showed significant differences between the subject SAA levels of nonstenosis and stenosis (4.35 ug/mL vs 21.75 mg/mL, p=0.001, with an odds ratio 9.84 (CI 95% 2.38 to 40.73). Based on this study, it can be conclued that the results indicate significantly higher level of Amyloid A Serum among the coronary stenosis compared to the nonstenosis.
Just Being a Teenager: Exploring the Social Drivers of HIV Risk and Resilience in a Rural South African Context
Authors: Burman Christopher John , Aphane Marota A. , Mtapuri Oliver 
Published: February 2018

This article describes an adapted rapid situational analysis that was used to investigate the HIV-related environment that teenage girls and young women negotiate in the rural province of Limpopo in South Africa. This research contributed to the development of a sex and relationships educational programme to improve the skill sets young women use to negotiate the HIV and AIDS epidemic. Conceptually, the methodology was informed by the social drivers of HIV debate and was designed to illuminate both the HIV-related risk environments that the young women encountered, as well as the resilience strategies they used to negotiate these contexts. The qualitative design included an Archetype Extraction technique and focus group discussions, with the former guiding the structure of the latter. The findings suggest that (a) young women negotiate multiple HIV risks, (b)Â are aware of these risks and (c) have developed resilience strategies to negotiate these types of environment. However, the reported risk factors were more dominant than the reported resilience strategies. The adapted rapid situational analysis was found to be fit for purpose and contributed to the community partnerâ€™s ambition of updating its sex and relationships education programme.Â Â
PENGEMBANGAN BAHAN AJAR INTERAKTIF BERBASIS TIK MENGGUNAKAN SLIDESHOW POWERPOINT BY USING AUDIO EFFECT BAGI GURU MATEMATIKA SMP PEDALAMAN KUBU KALIMANTAN BARAT
Authors: Hudiono Bambang 
Published: February 2018

Penelitian ini dilatarbelakangi pada kenyataan bahwa dewasa ini, perkembangan keterlibatan pemanfaatan TIK dalam bidang pendidikan, sangat pesat. Namun demikian, penyebaran perkembangan tersebut belum menyentuh semua wilayah, terutama di daerah-daerah pedalaman. Permasalahan yang muncul adalah kesempatan peningkatan profesionalisme guru di kota dan daerah pedalaman seperti di daerah Kubu Kalimantan Barat yang terkait dengan pemanfaatan teknologi informasi dan komunikasi tidak merata. Untuk mengatasi persoalan di atas perlu dicarikan model pemecahannya. Salah satu upaya, mengembangkan bahan ajar interaktif pada mata pelajaran matematika. Kegiatan ini merupakan penelitian pengembangan berupa pembuatan bahan ajar interaktif dengan memanfaatkan program slideshow powerpoint by Using Audio Effect. Akhir dari seluruh kegiatan adalah terbentuknya model bahan ajar interaktif dalam bentuk CD yang berisi slideshow powerpoint yang disertai penjelasan tertulis dan verbal dalam bentuk suara guru yang dapat digunakan dalam pembelajaran matematika, serta dihasilkannya buku panduan untuk mengembangkan bahan ajar interaktif yang dapat digunakan guru ataupun pemerhati pendidikan lainnya. Kata kunci: bahan ajar, interaktif, pembelajaran, matematika, TIK
MENINGKATKAN PENGETAHUAN KONSEPTUAL DAN PENGETAHUAN PROSEDURAL MAHASISWA MELALUI PENDEKATAN DISKURSUS MATEMATIK
Authors: Hamdani Hamdani 
Published: February 2018

This research aim to raise conceptual and procerural knowledge students through mathematical discouse approach. This study involving the students third semester of mathematic programme in Training and Education Faculty. To achieve goal, this study was used to action research method. Instrument in this study consist of observer worksheet and test. Result of this study show that (i) competency of conceptual knowledge was multiplying from 10,3 % (fisrt cycle) to 75,8 % (second cycle) in good or best category; (ii) competency of procedural knowledge was multiplying from 31,1 % (fisrt cycle) to 93 % (second cycle) in good or best category Key word: Conceptual knowledge, procedural knowledge.
PENGEMBANGAN VIRTUAL LABORATORY BERBASIS MULTIMEDIA INTERAKTIF PADA MATA KULIAH MICROBIOLOGY SUB MATERI ISOLASI BAKTERI
Authors: Yeni Laili Fitri 
Published: February 2018

This research aims to produce Virtual Laboratory as interactive multimedia on sub material the isolation of bacteria, knowing about adisability of Virtual Laboratory, and measure the comprehension of the student PGMIPAU Education Biology FKIP Untan concept whom get be taught with Virtual Laboratory. The research method that used is a Development Research. This method includes four stages that is the analysis and design stage for produce Virtual Laboratory prototype. The next stage is evaluation and revision until the Virtual Laboratory was proper to use. Implementation of media have done at small group (the student PGMIPAU Education Biology). Be based on result of validation by validator of media and matter, Virtual Laboratory get catagorized as valid with the average of the validation is 3,18. Be based on result of student learnig outcomes obtained average 75,55 with the percentage of completness is 88,88%. Keywords: Virtual Laboratory, isolation of bacteria.
AUTHENTHIC PROBLEM BASED LEARNING (aPBL) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR SISWA
Authors: Hudha Muhammad Nur 
Published: February 2018

The purpose of physics learning at the school level is directed to develop the students’ thinking skill. This study aimed to improve the students’ critical thinking skill and students’ problem solving skill through aPBL (authenthic Problem Based Learning) learning. This study used classroom action research designed by Kemmis & Mc Taggart with the stages; problem identification, action planning, action, observation, and reflection. The research data were obtained in the form of the data of students’ problem-solving skill and critical thinking. The data in this research were analyzed qualitatively and quantitatively. The results showed that the application of aPBL (authentic Problem Based Learning) could improve the students' critical thinking skill and students’ problem solving skill. This improvement could be seen from the average score of critical thinking test and problem solving skill test that had been carried out. Keywords: aPBL, thinking skill, physics
STRUKTUR KOMUNITAS PLANKTON PERMUKAAN PADA DANAU LABUAN CERMIN KEC. BIDUK-BIDUK, KAB. BERAU
Authors: Arum Elis Seftia , Hariani Nova , Hendra Medi 
Published: February 2018

This study aims to determine (physico-chemical) parameters of water and also community structure of plankton surface in natural tourism Labuan Cermin Biduk-Biduk, Berau, Kalimantan Timur. This study used Purposive Sampling method. Data obtained shows in plankton abundance, diversity index, evenness index and dominance index. The result of study showed that range of temperature between 24,04 oC -26,88 oC, range of salinity between 0.25-0.87o/oowhich classified in freshwater-brackish water, range of power flow between 1.121-2.930 m/s which classified in moderate level, the average pH between 6,76-7,48 which classified in neutral level, range of TDS between 514-788 mg/L which classified in normal level, respectively. Plankton sample showed 27 classes including of 22 classes of phytoplankton with 57 genera and 5 classes of zooplankton with 10 genera. The highest total plankton abundances of 35917 ind/L is in Station A and the lowest total plankton abundances of 8330 ind/L is in Station F. Keywords: Plankton, Labuan Cermin, Diversity.
Liberdade de Associação e o Recesso nas Sociedades Limitadas
Authors: Tomazette Marlon 
Published: February 2018

O direito de recesso nas sociedades limitadas representa o direito do sócio sair da sociedade, exigindo da própria sociedade o pagamento por suas quotas. Os limites para o exercício desse direito são discutidos pela doutrina, sendoo objetivo do presente trabalho definir quando e em que condições tal direito pode ser exercido. Para tanto, é feita uma análise doutrinária do tema a partir da eficácia horizontal dos direitos fundamentais, em razão do fenômeno da constitucionalização do direito empresarial, tomando-se a liberdade de associação como parâmetro de solução da divergência doutrinária. Dentro dessa análise, são definidas as hipóteses para o direitode recesso nas sociedades por prazo determinadoe nas sociedades por prazo indeterminado.

DOI:10.5585/rdb.v1i1.58