bluuebunny/crossref_metadata_2025 huggingface dataset:
Balance between the Reliability of Classification and Sampling Effort: A Multi-Approach for the Water Framework Directive (WFD) Ecological Status Applied to the Venice Lagoon (Italy)
Authors: Cacciatore Federica , Bonometto Andrea , Paganini Elisa , Sfriso Adriano , Novello Marta , Parati Paolo , Gabellini Massimo , Boscolo Brusà Rossella
Published: July 2019

The Water Framework Directive (WFD) requires Member States to assess the ecological status of water bodies and provide an estimation of the classification confidence and precision. This study tackles the issue of the uncertainty in the classification, due to the spatial variability within each water body, proposing an analysis of the reliability of classification, using the results of macrophyte WFD monitoring in the Venice Lagoon as case study. The level of classification confidence, assessed for each water body, was also used as reference to optimize the sampling effort for the subsequent monitorings. The ecological status of macrophytes was calculated by the Macrophyte Quality Index at 114 stations located in 11 water bodies. At water body scale, the level of classification confidence ranges from 54% to 100%. After application of the multi-approach (inferential statistics, spatial analyses, and expert judgment), the optimization of the sampling effort resulted in a reduction of the number of stations from 114 to 84. The decrease of sampling effort was validated by assessing the reliability of classification after the optimization process (54–99%) and by spatial interpolation of data (Kernel standard error of 22.75%). The multi-approach proposed in this study could be easily applied to any other water body and biological quality element.
Role of Hepatocyte Nuclear Factor 4α in Regulating Hepatic Differentiation and the Inflammatory Response in HCC
Authors: Zhou Wen Li , Wang Zhan , Miao Ming Yong , Zang Yuan Sheng
Published: July 2019

Limited treatment options are available for hepatocellular carcinoma (HCC), especially in the advanced stage, which is associated with a poor prognosis. Many studies have demonstrated that hepatocyte nuclear factor 4α (HNF 4α) plays an important role in hepatic differentiation and the carcinogenesis of HCC. HNF 4α critically regulates hepatic differentiation by controlling a large number of genes involved in hepatic functions including metabolism, xenobiotic detoxification, bile acid synthesis, and serum protein production. It has also been confirmed to play an important role in the inflammatory environment in HCC. Thus, HNF 4α is considered to be a promising target for the treatment of HCC. Some studies have demonstrated that regulating HNF 4α expression in HCC had beneficial effects in in vivo and in vitro experiments. We herein review the role of HNF 4α in regulating hepatic metabolism and the inflammatory response, aiming to provide some ideas on induced hepatic differentiation therapy and regulating the inflammatory microenvironment for the treatment of advanced HCC.
PSC-induced Galectin-1 Promotes the Malignant Behavior of Pancreatic Ductal Adenocarcinoma
Authors: Tang Dong , Wu Qi , Zhang Hong Peng , Yuan Zhong Xu , Xu Jia Ming , Zhu Han Jian , Gao Jin , Liu Zhuang Zhuang , Dai Zhu Jiang , Sun Xiao Ming , Xu Meng Yue , Fang Hui Wen , Li Zhen , Lin Chao Biao , Shi Chun Feng , Wang Dao Rong
Published: July 2019

Background

Galectin-1 is a β-galactoside-binding protein overexpressed in the pancreatic stellate cells (PSCs) of pancreatic ductal adenocarcinoma (PDAC), while its expression is typically low in pancreatic cancer cells (PCCs). The point at which galectin-1 expression in PCCs increases, and its association with PDAC progression, have been unclear.

Methods

Galectin-1 expression in PDAC and metastatic lymph nodes was investigated using an immunohistochemical assay. PANC-1 PCC cells were co-cultured with PSCs expressing different levels of galectin-1. Subsequently, galectin-1 was overexpressed in PANC-1 cells using recombinant lentiviruses, and their proliferation, invasion, anchorage-independent growth, and in vivo tumorigenicity were evaluated.

Results

There was intermediate galectin-1 expression in PCCs, and it was positively associated with galectin-1 expression in PSCs in the PDAC tissues. Galectin-1 was strongly expressed in the metastatic lymph nodes. In the co-culture, high galectin-1 expression in the PSCs increased the galectin-1 expression in the PANC-1 cells. The galectin-1 overexpression in the PANC-1 cells enhanced their clone formation ability, proliferation, and invasion, increased the expression of proliferating cell nuclear antigen (PCNA) and BCL-2, and decreased Bax expression, promoting the establishment and growth of tumors.

Conclusion

High galectin-1 expression in PSCs induces galectin-1 expression in PCCs and subsequently promotes the malignant biological behavior of PDAC.
Oncothermia in Combination with Vitamin C Infusion for Non-small Cell Lung Cancer: a Case Report
Authors: Ou Jun Wen , Lu Yi Min , Zhu Xin Yu , Pang Clifford L.K.
Published: July 2019

We herein report an advanced case (T3N3M0, Stage IIIB) of squamous cell lung cancer. The patient survived beyond 5 years only receiving intravenous vitamin C (VitC) infusion combined with modulated electrohyperthermia (mEHT, trade name: oncothermia).
Alteration of Prolactin, Thyroid Hormones and Lipid Profiles during Three Stages of Pregnancy
Authors: Sahab Khalid Shaalan
Published: July 2019

Pregnancy causes a change in both hormonal and biochemical content of the maternal blood. Therefore, this study was to investigate the changing in TSH, T3, T4, prolactin and lipid profile during the three stage of pregnancy. The study included 30 pregnant women and 20 non-pregnant women as control group. Hormones were measured by hormones automated analyzer (Cobase400 Integra Plus, Roche, Germany) and lipid profiles were measured by biochemistry automated analyzer (Cobase411, Roche, Germany). The results showed significant elevation in, prolactin, in three stage of pregnancy (p < 0.05). While T3, T4, TC and TG were showed no significant elevation (p > 0.05) in first trimester when compared to control group, but TC and TG increased significantly (p < 0.05) in the second stage and third stage of pregnancy trimester and T3 and T4 elevated significantly (p < 0.05) in third stage of trimester. LDL and HDL were showed no significant elevation (p > 0.05) in all stages of trimester when compared to control group.
Conclusion: The normal period of pregnancy is accompanied with elevation of prolactin, thyroid hormones and increase of lipids fractions.
Fitobiyotikler ve Etlik Piliçlerin Beslenmesindeki Rolü
Authors: Özbudak Serkan
Published: July 2019

Son yıllarda fitobiyotiklerin hayvan beslemedeki önemine
yönelik araştırmalar yoğunluk kazanmıştır. Bu araştırmaların yoğunlaşmasında, antibiyotiklerin
büyütme faktörü olarak kullanımıyla çapraz direnç oluşma riski, insanların
doğal gıdalara yönelme isteği etkili olmuştur. Daha çok esansiyel yağlardan
oluşan fitobiyotiklerin etlik piliç yem rasyonlarında kullanılması ile
performans, kanatlı sağlığı ve ürün kalitesine yönelik olumlu etkileri birçok
araştırmada gözlenmiştir.
Legal mobilization and climate change
Authors: Marshall Anna-Maria , Sterett Susan M
Published: July 2019

Climate change is a wicked problem, a framework not often used in sociolegal studies. The problem is complex, not readily named, and not limited to one jurisdiction. Therefore, the places of law are multiple: human rights instruments, supranational tribunals, regional courts, and local governments and NGOS. Litigation concerning responsibility for greenhouse gas emissions has largely not resulted in favorable judgments, and the papers in this collection turn to other ways of conceptualizing law and courts in responding to climate change. Relevant legal strategies include environmental legal enforcement, but also changes in investment, and response to the many disasters that are related to climate change. The papers in this collection travel across jurisdictions, actors and problems to assess legal strategies concerning climate change.
A "next generation" of climate change litigation?
Authors: Peel Jacqueline , Osofsky Hari , Foerster Anita
Published: July 2019

Since conclusion of the Paris Agreement and the high-profile Urgenda case, potential new avenues for strategic climate litigation have received considerable attention in many countries, including Australia. Australia already has a substantial climate jurisprudence, primarily involving administrative challenges under environmental laws. This paper aims to examine the prospects for a “next generation” of cases focused on holding governments and corporations to account for the climate change implications of their actions. We draw on analysis of existing legal precedent and emerging cases to explore four key aspects: drivers for next generation lawsuits, potential legal avenues, and likely enablers and barriers. The paper uses the Australian experience as a case study but draws also on litigation trends globally. We find that the most fruitful strategy for future climate change litigation is likely to be one that advances lower risk cases building from the base of existing litigation, while simultaneously attempting novel approaches.
NGOs environmental legal mobilization and their access to the Spanish Supreme Court
Authors: Muñoz Luz , Moya David
Published: July 2019

Environmental NGOs in Spain are well known policy actors. Since the nineties some of them have been invited to participate in governmental committees and/or to provide expertise to Parliamentary committees. They have also an important role in mobilizing public opinion to defend and protect the environment. We know less though about how do they intervene in the judicial arena. In the framework of a growing role of the Courts in the field of environmental governance, the goal of this paper is to analyze to what extent Spanish NGOs resorted to the judicial arena, specifically the Supreme Court, to enforce international and European higher standards of environmental protection and advocated against wrong or inadequate praxis in the implementation of environmental regulations. Several non-judicial factors seem to have strengthened that trend in Spain: increasing environmental national and European regulation as well as the NGOs organizational capacity to make judicial claims in line with their policy preferences.
Revisiting limits to legal mobilization for global climate justice
Authors: Derman Brandon Barclay
Published: July 2019

Amidst disproportionate climate-related harms and inadequate responses, affected groups have turned to legal mobilization. This paper analyzes socio-ecological complexity and territorial limits as themes of enduring relevance in official responses to the Inuit Circumpolar Council’s and Maldives’ foundational legal claims that climate change violates human rights, considering these against the backdrop of evolving understanding of responsibility for climate-related harm in scientific, political, and public discourse. The claims demonstrated that when legal analysis integrates scientific and traditional knowledge, climate change can be seen as violating rights internationally, and identifiable actors as culpable. Respondents disagreed, citing the complexity of climate-related harm, which combines multiple human actors, environmental processes, probability, prediction, and extraterritorial impact. Unresolved gaps between these interpretations raise doubts about law’s relevance to growing global inequities of climate change and other processes that mix people, places, and things.
Competencia lectora y aprendizaje
Authors: Solé Isabel
Published: July 2019

En el presente trabajo se discute acerca de la construcción de la competencia lectora y se examinan las relaciones existentes entre dicha competencia y el aprendizaje. Se asume que una concepción amplia y compleja de la lectura tiene mayores posibilidades de lograr una plena alfabetización (social e individual) que una representación más restringida y simple. Esta –la concepción simple– tiende a considerar que leer es una habilidad que se adquiere en un periodo concreto de la vida y que se aplica indistintamente a diversos textos y situaciones. Contrariamente a esta postura, se argumenta que la apropiación y el uso de la lectura en las sociedades letradas se inician muy pronto y no se acaban nunca, pues siempre es posible profundizar en la competencia lectora. Esta posición conlleva aceptar los cambios profundos que, por el impacto de las diversas situaciones y usos de la lectura en las que las personas nos vemos implicadas, se producen en la forma de ser lector a lo largo de la vida. En estas situaciones, gracias al concurso de otros, se pueden aprender las estrategias que permiten ir más allá de la lectura superficial, y posibilitan una lectura profunda, crítica, capaz de transformar la información en conocimiento. Se revisan algunos datos proporcionados por estudios internacionales de evaluación, así como las conclusiones de trabajos de investigación, que en conjunto ponen de manifiesto que la enseñanza y el aprendizaje de esta forma de lectura es menos frecuente de lo que cabría desear. Se concluye argumentando la necesidad de proyectos sociales y de centro dirigidos a fomentarla.
La enseñanza de la gramática: las relaciones entre la reflexión y el uso lingüístico
Authors: Rodríguez Gonzalo Carmen
Published: July 2019

El presente artículo se centra en la relación didáctica entre la gramática, entendida como reflexión sobre la lengua, y la mejora del uso lingüístico. Para ello, se aborda, en primer lugar, la finalidad de la enseñanza de las lenguas en los currículos escolares y el papel que se atribuye a la reflexión gramatical en ellos. A continuación, se muestra la importancia de las investigaciones sobre la actividad metalingüística de los hablantes para un planteamiento de la gramática en función del uso. Por último, se revisan algunas vías exploradas por la investigación didáctica en relación con lo que sucede en las aulas (cómo aprenden los alumnos, cómo intervienen los profesores, qué contenidos se trasladan al aula) y en relación con los planteamientos que apuntan al desarrollo de la conciencia metalingüística y muestran la viabilidad de nuevas formas de intervención en el aula.
La educación literaria en los proyectos de trabajo
Authors: Margallo González Ana María
Published: July 2019

La articulación de la educación literaria en torno al objetivo de formar lectores exige una renovación metodológica que supere la tradicional organización cronológica de los contenidos. Desde su introducción en la década de 1990, los proyectos literarios se postularon como una forma de programación que se ajusta al objetivo de desarrollar la competencia literaria. Para concretar la adecuación de los planes de trabajo al nuevo modelo de educación literaria, el artículo analiza las aportaciones de algunos proyectos a los objetivos de formación de lectores señalados por la didáctica de la literatura. De la panorámica resultante se desprenden algunas reflexiones sobre las tendencias en la evolución de los proyectos, prestando una atención especial a las que resultan de la implantación de las tic.
O uso do jornal impresso na educação básica: resultados de uma década de pesquisas no Brasil
Authors: Ramos Vosgerau Dilmeire Sant`Anna , Bortolin Pinheiro Rafaela
Published: July 2019

O presente estudo se caracteriza por ser uma pesquisa do tipo estado do conhecimento (ou estado da arte), sobre o uso do jornal impresso na escola, tendo como objetivo geral realizar um levantamento da produção sobre o tema no Banco de Teses da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes). Para conduzir a pesquisa foram estabelecidos os seguintes objetivos específicos: indicar as tendências investigativas sobre o assunto no Brasil, examinar as características dessas pesquisas e verificar se os estudos relacionam o uso de jornais na escola com a formação e/ou com o trabalho docente. Após a análise de 73 publicações (61 dissertações, duas dissertações profissionais e sete teses), foi possível constatar que a produção brasileira é instável, está concentrada nas regiões Sul e Sudeste, aborda o uso pedagógico do jornal em contextos variados, apresenta as possibilidades deste recurso em diferentes disciplinas, relaciona os benefícios destas atividades como formas de incentivo à leitura, à escrita e à cidadania entre os alunos, mas, na maioria dos casos, não manifesta preocupação com a formação e atuação dos professores.
Sostenibilización del perfil profesional del educador social. Necesidades y demandas compartidas
Authors: Sánchez Alba Bienvenida , Gómez-Jarabo Inmaculada , Sabán Vera Carmen , Sáenz-Rico de Santiago Belén
Published: July 2019

A pesar de que la educación superior desempeña una función cardinal en el logro de sociedades enfocadas a la consecución de los Objetivos de Desarrollo Sostenible proclamados por Naciones Unidas en 2015, se ha detectado una falta de marcos comunes sobre las competencias a integrar en los grados universitarios (Segalàs, Ferrer-Balas, Svansrom, Lundqvist, Mulder, 2009), sobre la necesidad de una formación más práctica e integradora, de actualización permanente del profesorado y de liderazgo organizacional para un logro efectivo de la Educación para el Desarrollo Sostenible (Van Weenen, 2000). Este artículo estudia y propone identificar las necesidades formativas en el perfil profesional del Grado de Educación Social en la Universidad Complutense de Madrid, a partir de la dimensión del desarrollo sostenible.La metodología de investigación utilizada ha sido de carácter cualitativo, empleando instrumentos como entrevistas semiestructuradas y grupos de enfoque con especialistas de diferentes ámbitos: tercer sector y sociedad civil; gestores de educación superior y miembros de la comunidad universitaria.Se perfila, de los resultados obtenidos, la necesidad de repensar la educación desde la mirada de la sostenibilidad. Incorporando al perfil del educador social dimensiones como la antropo-ética en los procesos formativos, valores como el respeto y cuidado de la comunidad de vida, la integridad ecológica, la justicia social, la economía sostenible; y, reforzar valores como la democracia, participación y cultura de paz. Se concluye con la necesidad de tener en cuenta en el proceso de enseñanza aprendizaje una cuarta dimensión competencial: saber convivir.
Competencias profesionales del profesorado de educación obligatoria
Authors: Martínez-Izaguirre Miryam , Yániz Álvarez de Eulate Concepción , Villardón-Gallego Lourdes
Published: July 2019

La asunción de un modelo educativo que orienta al alumnado al desarrollo de competencias para la vida, conlleva un cambio de rumbo en los planteamientos y acciones a desarrollar en los centros escolares, y la transformación de las funciones a desempeñar por el profesorado.La revisión y análisis previos sobre las tareas que la normativa y la investigación educativa consideran ha de realizar el profesorado de educación obligatoria, han posibilitado en este estudio definir y validar a través del juicio de expertos, las competencias docentes ajustadas al contexto educativo actual.A partir de los resultados obtenidos se proponen nueve competencias docentes clasificadas en dos tipologías. Por un lado, unas competencias clave asociadas a las funciones que promueven el aprendizaje y el desarrollo de competencias para la vida en el alumnado. Y por otro, unas competencias genérico-transversales, que, sin estar directamente relacionadas con los procesos de aprendizaje, contribuyen a su mejora. El juicio de expertos constata la relevancia de las competencias propuestas, la precisión de sus definiciones y la adecuación de sus dimensiones.El trabajo realizado tiene importantes implicaciones para la formación y práctica docente, dado que permite establecer unas metas educativas ajustadas a las demandas que la sociedad actual hace a la educación obligatoria
Aprendizaje a lo largo de la vida. Concepto y componentes
Authors: Belando-Montoro María Remedios
Published: July 2019

El aprendizaje a lo largo de la vida es considerado uno de los principales objetivos de los organismos supranacionales y de las diversas administraciones educativas nacionales desde hace varias décadas. Este paradigma no es sólo clave para afrontar los problemas mundiales de la educación sino que sus beneficios van más allá, abarcando desde el ámbito laboral al propio desarrollo personal. Sin embargo, y a pesar de la abundante literatura generada al respecto, todavía hoy se hace necesario una visión integradora que aborde los elementos sustanciales de este concepto. Para ello, este artículo parte de las aportaciones generadas por los organismos de la Unión Europea. A continuación, se analiza su desarrollo en España. Se finaliza con la propuesta de una definición del aprendizaje a lo largo de la vida y sus características principales.

Palabras clave: Aprendizaje a lo largo de la vida; concepto; Unión Europea; España.
Pengaruh Faktor Internal dan Eksternal Terhadap Return Saham Perusahaan Makanan dan Minuman di Bursa Efek Indonesia Periode 2008–2011
Authors: Wijaya Erric , Nursanti Tinjung Desy
Published: July 2019

This study aims to look at the impact of internal and external factors to the stock return of food and beverage companies listed in the Indonesia Stock Exchange 2008 to 2011 period. The method used is the regression equation analysis of panel data using a common effect type.The results show that the internal factors such current ratio, debt to equity ratio and return on assets showed a positive and significant influence on the company's stock return of food and beverage industry in the BEI. While external factors namely SBI interest rate and economic growth showed a different result, where the SBI interest rate has a negative and significant relationship to the company's stock return, while economic growth has no significant negative relationship to the stock returns.
Aktivitas Bakteri Kitinolitik dari Cangkang Perna viridis sebagai Antifungi Phytophthora palmivora Penyebab Penyakit Busuk Buah Kakao (Theobroma cacao L.)
Authors: Khikmah Ulfia Nurul , Isroni Muhson Isroni , Maulidiya Anisa
Published: July 2019

Abstract. The emphasis on the growth of Phytophthora palmivora was important in order to reduce Pod Rot Disease of cacao (Theobrorna cacao L.) which could harm agriculture sector. Some bacteria had chitinolytic enzyme activity that is potentially used as an antifungal against Phytophthora palmivora, because the cell wall of the fungi composed of chitin. The purpose of this research was to know chitinolytic bacteria from Perna viridis shell which had higher activity of chitinase enzyme, the amount of chitinase enzyme activity of each selected isolate, and to know the effect of chitinolytic bacterial isolates from Perna viridis shell to reduce the growth of Phytophthora palmivora. The bacteria were isolated from Perna viridis shell at Depok Beach, Kretek, Bantul, Yogyakarta. This research was an explorative research which include bacterial characterization and experimental research which include antagonistic test of chitinolytic bacteria against Phytophthora palmivora. The chitinolytic bacteria was isolated using selective chitin agar medium by pour plate method and then screening the isolates that had chitinase enzyme activity by measuring the enzyme activity of each bacterial isolates by spectrophotometric method. Selected bacterial isolates were characterized by macroscopic, microscopic and physiological characters. The bacteria that had been selected tested for their ability to reduce the growth of Phytophthora palmivora by Kirby Bauer modification method. The result showed that there were 10 isolates that had chitinase enzyme activity which two selected isolates had the higher chitinase enzyme activity. There were 7D and 6B isolates. The isolate 7D had 1,258 u/ml chitinase enzyme activity and isolate 6B had 1,212 u/ml chitinase enzyme activity. The result of chitinolytic bacterial antagonist test on Phytophthora palmivora growth showed that both bacterial isolates were potential to antifungal Phytophthora palmivora and showed a real effect in inhibiting the growth of Phytophthora palmivora with significance value < 0,05.Keywords: Chitinolytic Bacteria, Perna viridis, Phytophthora palmivora
ersentase Mortalitas Ulat Grayak Terhadap Pemberian Ekstrak Daun Bunga Pukul Empat
Authors: Suryani A.Irma , Hariani Nova , Majid Ahmad Fudhail , Risqa Siti
Published: July 2019

Abstract. Caterpillar grayak (Spodoptera litura) is one of the pests in various types of vegetable plants are polyphagous and have a wide range of hosts. One common way of controlling farmers to overcome Spodoptera litura attack is to use insecticide. The use of insecticides that are not rational will accelerate the occurrence of pest resistance against insecticides. An alternative is needed to develop biological products which are generally narrow-spectrum chemicals to target organisms. Flowers at four (Mirabilis jalapa) contain bioactive compounds that are toxic. M. Jalapa contains some secondary metabolite compounds such as saponins, flavonoids, tannins, and polyphenols. Based on the description above it is necessary to conduct a research to determine the percentage mortality of caterpillar grayak on giving the leaf extract at four o'clock flowers. The method used is leaf dipping methods and analysis with POLO-PC software. The results showed that 1.6% concentration of extract of M. jalapa can kill the number of larvae as much as 30 tails with a percentage of 75% within 48 hours. The LC50 value of mortality of M. jalapa extract on Spodoptera litura larvae was 0,507% (0,378-0,661 with p <0,05) with slope1,516 ± 0,318.Keywords: Bioinsecticides, Mirabilis jalapa, Spodoptera litura, Mortality
Perbandingan Konsentrasi ZPT (BAP dan NAA) Pada Media MS Terhadap Pertumbuhan Kalus Eksplan Daun Muda Tanaman Karet (Hevea brasiliensis Muell. Arg)
Authors: Sukamto Dwi Sucianingtyas , Maharani Lila , Lestari Inget Puji
Published: July 2019

Abstract. Rubber is known in Indonesia since the Dutch colonial period. Indonesia is the second largest natural rubber producer in the world after Thailand, rubber production contributes greatly to the Indonesian economy. Propagation of rubber seedlings to date is still done by grafting is by using the eyes of buds and seed plants, one of the alternatives to meet the demand for rubber seedlings that are increasing and not dependent on the season and to produce the clonal rootstock is homogeneous by tissue culture techniques. This study aims to find out the response of callus formation of young leaf rubber plant leaves (Hevea brasiliensis Muell, Arg) on MS medium with different concentration of ZPT (BAP and NAA). This research uses Cross Sectional type of observation research, with combination of MS and ZPT media used ie MS with BAP 1.5 ppm + NAA 0,05 ppm, BAP 2 ppm + NAA 0,1 ppm, BAP 2.5 ppm + NAA 0.2 ppm. The parameters observed were the forming of callus, callus texture and callus color for 21 days. Based on the results of the study showed that MS treatment with ZPT concentration (BAP 1.5 ppm + NAA 0.05ppm) gave the best result for callus formation response with highest explanation percentage of 0,06%.Keywords. Calli, Concentration ZPT, Hevea brasiliensis Muell.Arg.
Inventarisasi Tanaman Berpotensi Sebagai Indikator Asam-Basa Alami Di Kota Kupang
Authors: Mahmud Nur R. Adawiyah , Ihwan Ihwan , Jannah Nur
Published: July 2019

Abstract.  This study investigated a natural acid-base indicator which is extracted from plants in Kupang city. There are 14 plants that potential as a source of natural indicator for acid base titration, i.e, Kol Ungu (Brassica oleracea Capitata Group), Turi Merah flower (Sesbania grandiflora L. Pers), Belimbing Wuluh flower (Averhoa bilimbi L), Kaktus Merah fruit (Opuntia vulgaris Mill), Ruelia flower (Ruellia simplex), Flamboyan flower (Delonix regia), bugenvil flower (Bougainvillea spectabilis Willd.), Bayam Merah leaves (Amaranthus tricolor L.) Jamblang fruit (Syzygium cumini L.), Murbey fruit (Morus alba L.), Pinang fruit (Areca catechu L.), Sirih fruit (Piper betle L.), Kunyit (Curcuma longa Linn), and Nanas Kerang leaves (Rhoeo discolor). Plants extract shows a sharp color change in acid and base solution. Promising results as a natural indicator also shown in acid base titration which is have similar equivalent point to synthetic indicator. We can use these natural indicators as an alternative to synthetic indicator because they are found to be simple, very useful, cheap, easy to extract, accurate, and eco-friendly. Keywords: Plant, Natural indicator, Acid-Base
Analisis Ekologis Meiofauna Sebagai Bioindikator Di Pesisir Pantai Losari, Makassar
Authors: Yusal Muh Sri , Marfai Muh Aris , Hadisusanto Suwarno , Khakhim Nurul
Published: July 2019

Abstract.  The research aims to analyze ecological value of meiofauna as bioindicator in Losari Coast, Makassar. The total meiofauna abundance was 66791 indv/m2, consisted of 12 phylum and 91 species/genus. The stations located at the mouth of the Jeneberang River, Tanjung Merdeka, and the Tallo River  are research sites with high levels of abundance, due to the presence of organic contaminants produced by surrounding anthropogenic activity that trigger high growth of meiofauna.  ostracoda, oligochaeta, tunicata and ciliophora are the phylum with high levels of abundance compared to other meiofauna, as it that phylum has a high adaptability to the entry of pollutant material in the water. Diversity index and evenness indicates  the meioufauna in the Losari Coast categorized by a high level of diversity and evenly distributed. While  dominance index indicated that no dominant meifauna species, except at research stations located around the Losari Beach reclamation project. Keywords: Abundance, meiofauna, anthropogenic, Coastal Losari Beach, Makassar
Penerapan Model Pembelajaran Kooperatif Tipe STAD untuk Meningkatkan Minat Belajar Peserta Didik Kelas XI IPA. 1 SMA Negeri 1 Sa’dan Balusu terhadap Mata Pelajaran Kimia
Authors: Darandang Andarias Lampin
Published: July 2019

ABSTRAKPengajaran Kimia di SMA Negeri 1 Sa’dan Balusu sampai saat ini belum bisa dikatakan berhasil. Kenyataan ini didukung oleh ketuntasan belajar peserta didik masih jauh dari yang diharapkan. Adanya sebagian guru kimia yang di dalam mengajar hanya dengan metode ceramah tanpa melibatkan peserta didik untuk aktif di dalamnya, semakin menambah kecenderungan peserta didik bahwa kimia itu membosankan. Dengan memperhatikan kesenjangan yang ada dan untuk mendapatkan pemecahan dari permasalahan tersebut, maka dilakukan Penelitian Tindakan Kelas (PTK) dengan metode pembelajaran kooperatif tipe STAD dalam pembelajaran konsep Termokimia. PTK ini dilakukan dalam dua siklus pembelajaran, dimana masing-masing siklus terdiri dari 1. Perencanaan; 2. Pelaksanaan; 3. Pengamatan; 4. Refleksi. Subyek penelitian ini adalah peserta didik kelas XI IPA. 1 SMA Negeri 1 Sa’dan Balusu. Hasil penelitian ini menunjukkan bahwa terdapat peningkatan minat belajar peserta didik.Kata kunci: Kooperatif, Minat Belajar, Chemistry ABSTRACTChemistry Teaching at SMA Negeri 1 Sa'dan Balusu has not been successful yet. This fact is supported by the completeness of student learning is still far from expected. The existence of some chemistry teachers who teach only speaking method without the involvement of students to be active in it, increasing the student's tendency that chemistry is boring. By considering the existing gap and to get the solution of the problem, the Classroom Action Research with STAD type cooperative learning method in learning Thermochemical concept was done. This Classroom Action Research was conducted in two learning cycles, each cycle consisting of 1. Planning; 2. Implementation; 3. Observations; 4. Reflection. The subjects of this study were students of class XI IPA. 1 at SMA Negeri 1 Sa'dan Balusu. The results of this study indicate that there was enhancement of  student learning interest.Keywords: Cooperative, Learning interest, Chemistry
Studi Komparasi Model Pembelajaran Kooperatif Tipe Jigsaw dengan Tipe TGT Ditinjau dari Hasil Belajar Siswa Kelas X SMAN 3 Watansoppeng (Studi pada Materi Pokok Ikatan Kimia)
Authors: Safar Sutra , Hasri Hasri , Sudding Sudding
Published: July 2019

ABSTRAKPenelitian ini adalah penelitian komparatif yang bertujuan untuk mengetahui perbedaan hasil belajar siswa Kelas X SMA Negeri 3 Watansoppeng yang dibelajarkan dengan model pembelajaran kooperatif tipe Jigsaw dan tipe TGT. Populasinya adalah siswa kelas X SMA Negeri 3 Watansoppeng yang terdiri dari enam kelas, sedangkan sampelnya adalah kelas X3 sebagai kelas eksperimen I yang dibelajarkan dengan model pembelajaran kooperatif tipe jigsaw dan kelas X6 sebagai kelas eksperimen II yang dibelajarkan dengan model pembelajaran kooperatif tipe TGT dengan jumlah siswa masing-masing 23 orang. Desain penelitian yang digunakan adalah “Posttest Only Design”. Variabel bebasnya adalah pembelajaran kooperatif tipe Jigsaw dan pembelajaran kooperatif tipe TGT dan variabel terikatnya yaitu hasil belajar. Hasil analisis data menunjukkan nilai rata-rata hasil belajar siswa kelas Jigsaw pada posttest yaitu 72,15 dengan standar deviasi 12,17 dan kelas TGT yaitu 65,34 dengan standar deviasi 11,14. Hasil pengujian hipotesis diperoleh nilai thitung = 2,0841. Pada taraf signifikan α = 0,05 dengan dk = 44 diperoleh t(0,025,44) = 2,0154. Oleh karena, thitung tidak terletak diantara –t(0,025,44) dan +t(0,025,44), maka H1 diterima dan H0 ditolak, bearti bahwa terdapat perbedaan hasil belajar siswa yang dibelajarkan dengan model pembelajaran kooperatif tipe Jigsaw dan tipe TGT di kelas X SMA Negeri 3 Watansoppeng pada Materi Pokok Ikatan Kimia.Kata Kunci: Jigsaw, TGT, Hasil Belajar,Ikatan Kimia. ABSTRACTThis comparison research aimed to investigate the differences of learning outcomes of Class X student SMA Negeri 3 Watansoppeng taught by using of Jigsaw and TGT types of cooperative learning. The population are all class X of SMA Negeri 3 Watansoppeng which consists of 6 classes, while the sample are Class of X3 is a sample as experiment I class which was taught by Jigsaw Type and Class of X6 as experiment II class which was taught by TGT Type of Cooperative Learning Model, the student amount of 23 participants, respectivly. The study design was "Posttest Only Design". The analysis showed the average value of student learning outcomes Jigsaw class in posttest is 72,15 with 12,17 of deviation standard and TGT class, 65,34 with 65,34 of deviation standard. The results of hypothesis values obtained at tcount = 2,0841. α = 0.05 significance level with df = 44 obtained table = 2,0154, therefore, tcount is not located between  -t(0,025,44)  and +t(0,025,44). It’is meant the H1 hypothesis is accepted and H0 is rejected. However, the conclusion there is difference outcomes learning taught by Jigsaw and TGT types of cooperative learning model of X class student of SMA Negeri 3 Watansoppeng on the subject matter of the chemical bond.Keywords: Jigsaw, TGT, Learning Outcomes, Chemical Bond.
Penerapan Model Pembelajaran Learning Cycle 5E untuk Meningkatkan Aktivitas Belajar Siswa Kelas X2 SMA Negeri 1 Donri-Donri Kab. Soppeng (Studi Materi Pokok Struktur Atom dan Sistem Periodik Unsur)
Authors: Hardianti Hardianti , Ramdani Ramdani , Muharram Muharram
Published: July 2019

ABSTRAKPenelitian tindakan kelas ini bertujuan untuk menerapkan langkah-langkah pada setiap fase model pembelajaran learning cycle 5E yang dapat meningkatkan aktivitas belajar siswa kelas X2 SMA Negeri 1 Donri-donri Kab. Soppeng. Terdapat empat tahapan yang dilalui, yaitu (1) perencanaan, (2) pelaksanaan, (3) pengamatan, dan (4) refleksi. Penelitian ini dilakukan sebanyak dua siklus, Data hasil penelitian menunjukkan bahwa langkah-langkah pada setiap fase model learning cycle 5E  yang dapat meningkatkan aktivitas dan hasil belajar siswa yaitu: (1) fase enggagement dengan membangkitkan minat siswa pada pembelajaran, dan melakukan tanya jawab dalam mengeksplorasi pengetahuan awal siswa, (2) fase exploration dengan memberikan kesempatan kepada siswa untuk menemukan konsep melalui diskusi dalam kelompok kecil, (3) fase explaination dengan menumbuhkan rasa percaya diri siswa untuk menyampaikan konsep yang telah ditemukannya dengan kata-kata sendiri, (4) fase elaboration dengan menyajikan latihan soal untuk melatih  siswa menggunakan konsep yang telah ditemukan  pada soal-soal pemecahan masalah, (5) fase evaluation dengan memberikan evaluasi berupa tes atau tanya-jawab dalam membuat kesimpulan. Persentase aktivitas belajar siswa meningkat dari 47,39% pada siklus I menjadi 64,40% pada siklus II.Kata Kunci: Learning cycle 5E, Aktivitas belajar, Struktur atom dan Sistem periodik unsur   ABSTRACTThis classroom action research  aimed to implement the steps in each phase of the learning cycle 5E model that can increase student’s learning activity of class  X2 SMA Negeri 1 Donri-donri Kab. Soppeng. There were four steps in this research: (1) planning, (2) implementation, (3) observation, (4) reflection. This research was conducted in two cycles. The results showed that the steps in each phase of the learning cycle 5E model that can improve the activity and student’s achievement are: (1) Enggagement phase by providing student’s interest about the subject matter, and exploring student’s basic knowlage, (2) Exploration phase by giving a chance to students to find concept by the little group discussions, (3) Explaination phase by growing self-confidence of students, so they can explain the concept that they had discovered with their own words, (4) Elaboration phase by presenting exercises, that aimed  to exercise students to use the  concepts that have been found in the exercing test, (5) Evaluation phase by giving such evaluation to make a conclusions. Student’s learning activities increased from 47,39% in the first cycle to 64,40% in the second cycle.Keywords: Learning cycle 5E, learning activities, atomic structure and the periodic system of elements
THE EFFECT OF MINDFULNESS ON ACADEMIC SELF-EFFICACY: A RANDOMISED CONTROLLED TRIAL
Authors: Menges Jack R. , Caltabiano Marie L.
Published: July 2019

This study examined the effect of a brief mindfulness intervention on academic self-efficacy. Twenty-six university students were randomized to a four-day brief mindfulness intervention or a wait-listed control condition. The brief mindfulness intervention took the form of four 30 minute sessions of mindfulness meditation over four consecutive days. Measures of mindfulness, emotional wellbeing, and academic self-efficacy were obtained via a self-report survey prior to the intervention, post-intervention and at a one-month follow-up. Both groups had comparable baseline measures on all three scales. Data analysis revealed that both academic self-efficacy and mindfulness increased between pre- and post-intervention with a medium effect size (d = 0.472 and 0.415 respectively). Emotional wellbeing significantly increased following the intervention with a large effect size (d = 0.652) and remained at this level after one month. Academic self-efficacy also stayed at elevated post-intervention levels after one month while mindfulness continued to increase following the intervention and was significantly higher at follow-up than at baseline (d = 0.564). There were no significant changes in the measured variables for the control group. Regression analysis revealed that increases in emotional wellbeing significantly predicted increases in academic self-efficacy for participants in the experimental group, both increases in mindfulness and emotional wellbeing were significantly correlated with increases in academic self-efficacy. These findings suggest that a brief mindfulness intervention is an effective and practical means to improve academic self-efficacy and emotional wellbeing in university students. Implications, limitations and future directions for research are discussed.
INTRINSIC MOTIVATION AMONG FORM FOUR HISTORY STUDENTS
Authors: Kaviza M.
Published: July 2019

This survey study is aimed to identify the level of intrinsic motivation and its and to determine whether there is a significant mean difference of intrinsic motivation-based gender, school location, achievement level, and subject stream. This study involved a total of 521 Form Four students as samples using simple random sampling techniques. The questionnaire Intrinsic Motivation Inventory which has been adapted is the instrument of this study. The data of this study were analyzed descriptively and inferred. The findings of this study showed that intrinsic motivation and its construct at a moderate level. In addition, the findings also showed that there are significant mean differences in intrinsic motivation based gender and achievement level. Therefore, the findings also indicated that there are no significant mean differences in intrinsic motivation based school location and subject streams. The implication of this study suggests that history teachers need to play an important role in raising the level of intrinsic motivation through the implementation of interesting teaching strategies, methods, techniques, and activities in the classroom.
TEACHERS’ PERCEPTION TOWARDS THE NEEDS OF GUIDANCE AND COUNSELING SERVICES IN RURAL PRIMARY SCHOOLS
Authors: Anoi Nisrin Zalchary , Abu Bakar Abu Yazid
Published: July 2019

Guidance and counseling services play an important role in helping students in academics and behavior as well as in planning their future. Realizing this, the Ministry of Education has issued a circular letter DG / 5209/35 / (40), which requires each school to appoint a teacher of guidance and counseling. This study was carried out to identify teachers' perception towards the needs of guidance and counseling in rural primary schools, especially in Bakong, Miri, Sarawak. This study is a descriptive study involving 35 teachers in rural primary schools in Bakong district. The instrument used was a questionnaire adapted from Haidhir Md Yusof Mohd study (2015) that includes four parts, A, B, C and D. Part A consists of eight items including demographic data, while likert scale was used in Part B, C and D. Part B includes the perception of guidance and counseling data, part C the needs and teachers of guidance and counseling in rural area, and section D identified the issues and roles that require the needs of guidance and counseling services. Data were analyzed using descriptive analysis including frequency, percentage and mean. The findings could provide inputs not only to guidance and counseling area but also to the school, higher authorities and Ministry of education in upgrading the guidance and counseling services as well as ensuring the optimum use of the services in improving the quality of education.
LEARNING BASIC STATISTICS AND PROBABILITY THROUGH MOOC
Authors: Ismail Isma Liana , Jamal Nur Faezah , Awang Chek Mohd Zaki , Baharuddin Mohd Sapuan
Published: July 2019

Massive Online Open Course (MOOC) since its launch provides a wide selection of courses and learning modules. Openlearning.com said that more than 4000 MOOC from around the world, making it a very needed to get knowledge in addition to the traditional class or formal education. This is a growing number of MOOC which means that the mass has a passion for studying a variety of subjects’ virtual ways with their own levels and comforts. Although this amount is increasing, there is also concern that not all subjects and skills can be delivered and taught online. Like many language subjects, Basic Statistics and Probability is a challenging course for teaching and learning. This is because certain skills requiring ongoing guidance on how to provide the best teaching. Hence, Basic Statistics and Probability course has been created to provide knowledge and skills to teach fundamental of statistics and probability briefly, convenient, and effectively, according to MOOC’s requirements. This course is unique as its modules are organized for the first time to dominate the basic skills required in statistics and probability, then introduce the relevant tasks, and steps in ensuring the performance of the Basic Statistics and Probability verbally and in writing are effective. Presentation of this course promotes a smooth transition from understanding and using the basic skills to transfer these skills into reading, writing, and speaking about basic statistics and probability. It is hoped that ten (10) modules designed specifically help students to understand Basic Statistics and Probability faster and more effective. Basic Statistics and Probability course have the potential to become important in the teaching material at pre-university and University and to provide Statistics and Probability skills required for university students to implement the academic practice.
EVALUATION OF BACHELOR OF EDUCATION PROGRAM: CIPP MODEL AS A BASIC
Authors: Surendran Sankaran , Saad Norazlinda
Published: July 2019

The purpose of this study is to identify the influence of Lecturers and Facilities, and Relevance and Appropriateness of the Program towards the Effectiveness of the Bachelor of Education (ISMP) Program. This study uses a survey method. The population of the study was 520 ISMP students at Universiti Utara Malaysia. The selection of respondents made by using non-proportionate stratified sampling based on programs and simple random sampling. Data was collected from a sample of 219 students of ISMP. The questionnaire contains 30 items with high Cronbach Alpha value of 0.96. Quantitative data were analyzed by using descriptive statistics and Regression Analysis. The study also shows that the variables lecturers and Facilities, and the relevance and appropriateness of the ISMP Program have the significant and positive influence of student Perception on the ISMP Program. Relevance and appropriateness of the ISMP Program variable become a significant predictor with the highest coefficient value. Lecturers and Facilities, and Relevance and Appropriateness of the Program became a significant predictor of the Effectiveness of the ISMP Program. This explains that both variables need to be emphasized in the implementation of the ISMP program in order to create an effective program.
USING 3 DIMENSIONAL MOON PHASES MODEL TO IMPROVE STUDENTS’ MASTERY OF THE MOON PHASES CONCEPT
Authors: Aznan Nur Izyan Shafinaz , Haron Zolkepeli
Published: July 2019

This action research was conducted to overcome the problem of students’mastery in the Moon phases concept for year 5 students. The 3 dimensional Moon phases model was used to improve the mastery of the students in the concept of the Moon phases. This study is also carried out to see if the students' motivation increases to study the concept of Moon phases by using 3 dimensional Moon phases model. In addition, this study was also carried out to improve the teaching practice of the Moon Phase concept through the application of 3 dimensional Moon phases model. This study was conducted on qualitatively and quantitatively. The sample of the study comprised of 5-year students. A total of 37 students with the moderate achievement of a total of 236 years 5 students in a school in Cheras were selected as sample studies. This study uses the 3D Moon phases model as independent variables and the achievement of post-test as dependent variables. This study uses two sets of objective tests for pre and post-test, questionnaire form to see the acceptance level of students on the use of Moon phases model, an analysis of the number of questions that can be answered on reinforcement training sheets and semi-structured student interviews. Analysis data is done using statistical inference and descriptive statistic. The results showed that there were significant differences in the mean of student performance in pre and post-test. While the level of acceptance of the students to the Moon phases model is at a moderate positive level. In general, the use of 3 dimensional Moon phases model contributes to improving students’ mastery for the Moon phases concept.