bluuebunny/crossref_metadata_2025 huggingface dataset:
Diagnosis of Acanthamoeba keratitis in Mashhad, Northeastern Iran: A Gene-Based PCR Assay
Authors: KHOSRAVINIA Nazgol , FATA Abdolmajid , MOGHADDAS Elham , HOSSEINI FARASH Bibi Razieh , SEDAGHAT Mohammad Reza , ESLAMPOUR Ali Raza , JARAHI Lida
Published: February 2021

Background: The genus Acanthamoeba is a free-living opportunistic protozoan parasite, which widely distributed in soil and fresh water. Acanthamoeba keratitis, which causes a sight-threating infection of the cornea, is going to rise in Iran and worldwide. The aim of this study was to compare direct microscopy, culture and PCR for detection of Acanthamoeba spp. in clinical samples and to determine the genotypes of Acanthamoeba spp. by sequencing 18SrRNA gene.
Methods: Among patients clinically suspected to AK referred to a tertiary ophthalmology center at Mashhad, northeastern Iran. During 2017-18, twenty corneal scrapes specimens obtained. The samples were divided into three parts, subjected to direct microscopic examination, culture onto non-nutrient agar and PCR technique. Sensitivity, specificity, accuracy and likelihood ratio were evaluated.
Results: Among 20 persons clinically suspected to amoebic keratitis, 13(69.2%) patients definitely diagnosed as Acanthamoeba keratitis. Wearing contact lens, eye trauma due to foreign particle and swimming in fresh water were the main predisposing factors. Most of patients suffered from pain and photophobia. Corneal ring infiltration and epithelial defect were common clinical sings. Direct examination had the lowest sensitivity and sensitivity of both Nelson-PCR and JDP-PCR methods were equal and highest. In addition, the results of sequencing identified that all strains belonged to T4 genotype.
Conclusion: Amoebic keratitis is a sporadic parasitic keratitis, which is mainly seen in contact lens user in Mashhad. PCR based on 18S ribosomal DNA with JDP primers is a reliable and highly sensitive method for diagnosis of Acanthamoeba keratitis in clinically suspected cases.
In Vitro Antileishmanial Effects of Saffron Compounds, Crocin and Stigmasterol, on Iranian Strain of Leishmania major (MHOM/IR/75/ER)
Authors: RANJBAR Reza , SHAYANFAR Peyman , MANIATI Mahmood
Published: February 2021

Background: Due to numerous side effects of common drugs in treatment of leishmaniasis, new therapeutic approaches focus on herbal compounds. Therefore, we aimed to determine the effect of crocin and stigmasterol on in-vitro growth of promastigotes and amastigotes of Leishmania major in the Department of Parasitology, Pasteur Institute, Tehran, Iran in 2018.
Methods: The effect of different concentrations of crocin and stigmasterol were evaluated by determining their in-vitro inhibitory effects on promastigotes and amastigotes of the L. major using MTT assay.
Results: The fatality rate was 65.27% and 71.96% for crocin and stigmasterol respectively at 24 h post-culture in concentration of 50 μg/mL. The mean inhibitory effect of crocin and stigmasterol on L major amastigotes after 72 h were 52.22% and 38.96%.
Conclusion: The crocin and stigmasterol had efficient adverse effects on promastigote and amastigotes of L. major, hence, further studies on the anti-leishmanial effects of these herbal compounds in human and animal models are recommended.
Rapid Growth of Hydatid Cyst: A Pediatric Case Report
Authors: FOROUGHI Mehdi , BAHADOR Ali , BEIZAVI Zahra
Published: February 2021

Hydatid disease is a parasitic infection caused by Echinococcus granulosus with worldwide distribution. The most affected organs are liver and lungs, but it can be detected in any other organs as well. We reported a 5-yr-old boy from Shiraz, southern Iran in 2017 who presented with abdominal discomfort. Imaging revealed multiple liver hydatid cyst and a huge kidney hydatid cyst. This case showed the possible implication of rapid growth of multiple hydatid cyst as well as unusual organ presentation in the pediatric population.
Inferior alveolar nerve repositioning with simultaneous iliac bone autogenous graft for treatment of atrophic posterior mandibular ridge
Authors: Khojasteh Arash , Azizi Shahabaldin
Published: February 2021

Patients with tooth loss in the posterior mandible,requiring dental implantation, mayalso require other simultaneous surgical procedures due to severe atrophy, such as nerve lateralization. However, it is difficult to achieve the appropriate width and height in this area in patients with atrophic ridges. In the present case, we performed inferior alveolar nerve (IAN) repositioning and iliac bone grafting simultaneously to achieve satisfactory width and height in an edentulous adult patientwith insufficient bone height and width in the posterior mandible. The follow-up did not indicateany nerve damage, anda significant increase was observed in the bone height, which facilitated successful implantation. This study showed the feasibility of IAN repositioning withsimultaneous iliac bone autogenous grafting for thetreatment of atrophic posterior mandibular ridges. However, further studies are required to confirm the safety and efficacy of this combinational method.
Inhibitory effects of novel benzamide derivatives towards acetylcholinesterase enzyme
Authors: YAMALI Cem , GÜL Halise İnci , LEVENT Serkan , DEMİR Yeliz
Published: February 2021

Alzheimer's disease is one of the diseases which is identified by progressive memory loss and cognitive deficits leading to a decline in the lifespan of the patients. The drugs used in the clinic show palliative properties and they are unable to modify disease progression. In this study, N-(4-(N-(diaminomethylene)sulfamoyl)phenyl)-2-(substituted-benzamido)benzamide derivatives were synthesized and evaluated towards acetylcholinesterase (AChE, E.C.3.1.1.7) enzyme which is the most studied enzyme regarding Alzheimer's disease. The inhibition constants (Ki) of the compounds synthesized towards the AChE enzyme were in the range of 15.51 ± 1.88 - 41.24 ± 10.13 nM. The most effective compound with the lowest Ki = 15.51 ± 1.88 nM, 2-benzamido-N-(4-(N-(diaminomethylene)sulfamoyl)phenyl)benzamide 6, can be reported as a lead compound of this study. Bioactivity results obtained by this study may provide useful information on the development of novel and potent inhibitors targeting Alzheimer's disease.
Podwórka jako przestrzenie sąsiedzkie – perspektywa mieszkańców obszaru rewitalizacji Włocławka
Authors: Masierek Edyta , Szajerska Alicja
Published: February 2021

Artykuł ma na celu przedstawienie potrzeb mieszkańców w zakresie kreowania przestrzeni sąsiedzkich na obszarze rewitalizacji. Wskazuje na przykładzie Włocławka, w jaki sposób można wspólnie z użytkownikami budować pomysły na zmiany w zagospodarowaniu podwórek, tak aby stanowiły one miejsca integracji, aktywności oraz rozwijania relacji sąsiedzkich. Zaprezentowane w artykule wyniki badań ankietowych mogą stanowić punkt wyjścia do szerszej dyskusji na temat roli przestrzeni sąsiedzkich w wyprowadzaniu obszarów zdegradowanych z kryzysu, a także inspirację dla koordynujących procesy rewitalizacji w miastach, w szczególności w zakresie uwzględniania zdania użytkowników w realizowanych koncepcjach przemian.
Atrakcyjność migracyjna miast i obszarów wiejskich województwa wielkopolskiego
Authors: Józefowicz Karolina
Published: February 2021

Migracja jest jednym z istotnych procesów wpływających na sytuację demograficzną, nie tylko na wielkość populacji, ale także na jej strukturę. Celem artykułu jest pokazanie rozmiarów migracji w miastach oraz na obszarach wiejskich województwa wielkopolskiego. W analizie zastosowano metodę opisowo-porównawczą przy pomocy wybranych wskaźników migracji. Zakres czasowy obejmował lata 1995–2018, w jego ramach analizie poddano dane dla wybranych lat, tj. 1995, 2000, 2005, 2010, 2014 oraz 2018 roku. Badania pozwoliły wyodrębnić miasta, a przede wszystkim obszary wiejskie położone w sąsiedztwie Poznania, które stanowiły teren atrakcyjny migracyjnie. Napływ i odpływ ludności w miastach oraz na wsi w omawianych latach wykazał odwróconą tendencję, która rozpoczęła się przed rokiem 2000. Proces odpływu ludności nasilił się do tego stopnia, że w 2018 roku ponad 70% gmin miejskich sklasyfikowano jako obszary nieatrakcyjne migracyjnie.
Technology in formal and informal learning environments: Student perspectives
Authors: Carraro Katia , Trinder Ruth
Published: February 2021

The aim of this study is to assess whether the ease with which L2 learners/users can engage with their target languages beyond the classroom influences their perceptions of formal environments. In the last two decades, the rapid development and spread of new technologies has transformed foreign language acquisition, facilitating learning through leisure and informal language contact. At the same time, the new media are altering instructional contexts. Having always played a defining role in self-access centres (SACs), their ubiquity may now threaten this setting’s raison d’être; and while they can certainly add new dimensions to formal teaching, they are not necessarily welcomed by all stakeholders alike. These potential conflicts triggered our interest in researching students’ use of and perspectives on the affordances of technology for language learning in both formal as well as informal environments. Drawing on questionnaires, interviews and the results of the annual SAC monitoring, we will present data from three interlinked settings. Results indicate that despite the abundance of technology-based language learning opportunities, students still believe they benefit profoundly from the expertise and feedback of teachers and SAC advisors. We will conclude by pointing out potential reciprocal influences between the individual settings of a learning environment, and advise how teachers could help students become better-informed consumers of technology-mediated learning opportunities.
Opening Civic Space Online: Digital Rights in Africa
Authors: Roberts Tony , Mohamed Ali Abrar Mohamed
Published: February 2021

This report introduces findings from ten digital rights landscape country reports on Zimbabwe, Zambia, Uganda, Sudan, South Africa, Nigeria, Kenya, Ethiopia, Egypt, and Cameroon. They analyse how the openings and closings of online civic space affect citizens’ digital rights. They show that: (1) when civic space closes offline citizens often respond by opening civic space online; (2) when civic space opens online governments often take measures to close online space; and (3) the resulting reduction in digital rights makes it impossible to achieve the kind of inclusive governance defined in the Sustainable Development Goals (SDGs). We know far more about openings and closings of online civic space in the global North than we do in the global South. What little we do know about Africa is mainly about a single country, a single event, or single technology. For the first time, these reports make possible a comparative analysis of openings and closings of online civic space in Africa. They document 65 examples of the use of digital technologies to open online civic space and 115 examples of techniques used to close online civic space. The five tactics used most often to close online civic space in Africa are digital surveillance, disinformation, internet shutdowns, legislation, and arrests for online speech. The reports show clearly that any comprehensive analysis of digital rights requires consideration of the wider political, civic space, and technological contexts. We argue that countering the threats to democracy and digital rights discussed in the reports requires new evidence, awareness, and capacity. We propose applied research to build capacity in each country to effectively monitor, analyse, and counter the insidious impact of surveillance and disinformation; and a programme to raise awareness and mobilise opinion to open civic space and improve citizens’ ability to exercise, defend, and expand their digital rights.
Zimbabwe Digital Rights Landscape Report
Authors: Karekwaivanane George , Msonza Natasha
Published: February 2021

This report introduces findings from Zimbabwe. They analyse how the openings and closings of online civic space affect citizens’ digital rights. They show that: (1) when civic space closes offline citizens often respond by opening civic space online; (2) when civic space opens online governments often take measures to close online space; and (3) the resulting reduction in digital rights makes it impossible to achieve the kind of inclusive governance defined in the Sustainable Development Goals (SDGs).
Nigeria Digital Rights Landscape Report
Authors: Oladapo Oyewole , Ojebode Ayo
Published: February 2021

This report introduces findings from ten digital rights landscape country reports on Nigeria. They analyse how the openings and closings of online civic space affect citizens’ digital rights. They show that: (1) when civic space closes offline citizens often respond by opening civic space online; (2) when civic space opens online governments often take measures to close online space; and (3) the resulting reduction in digital rights makes it impossible to achieve the kind of inclusive governance defined in the Sustainable Development Goals (SDGs).
Egypt Digital Rights Landscape Report
Authors: Farahat Mohamed
Published: February 2021

This report introduces findings from ten digital rights landscape country reports on Egypt. They analyse how the openings and closings of online civic space affect citizens’ digital rights. They show that: (1) when civic space closes offline citizens often respond by opening civic space online; (2) when civic space opens online governments often take measures to close online space; and (3) the resulting reduction in digital rights makes it impossible to achieve the kind of inclusive governance defined in the Sustainable Development Goals (SDGs).
Cameroon Digital Rights Landscape Report
Authors: Ndongmo Kathleen
Published: February 2021

This report introduces findings from ten digital rights landscape country reports on Cameroon. They analyse how the openings and closings of online civic space affect citizens’ digital rights. They show that: (1) when civic space closes offline citizens often respond by opening civic space online; (2) when civic space opens online governments often take measures to close online space; and (3) the resulting reduction in digital rights makes it impossible to achieve the kind of inclusive governance defined in the Sustainable Development Goals (SDGs).
The Dark Side of Tobacco Industry's CSR: A Socio-Legal Analysis of the Indonesian Corporate Hegemony Campaign
Authors: Saputra Auditya Firza
Published: February 2021

This paper aims to seek the legal substance's core problem to reveal how the hegemony latently operates. By doing so, it deconstructs the established dogma about the industry's misperceived social reputation that frequently serves as justifications favoring the industry. As the only country in the Asia-Pacific region that has not yet accessed the Framework Convention on Tobacco Control (FCTC), Indonesia faces an alarming smoking prevalence rate. The situation has worsened during the COVID-19 outbreak because excessive tobacco smoking behavior increases people’s health vulnerability. Despite the destructive impact, most Indonesian citizens share a common belief about the tobacco industry's importance to the economy. Narratives on economic contribution and the industry’s philanthropic campaigns display the industry as the protagonist sector and play a significant role in creating a false public opinion on the tobacco industry's reputation. Using a qualitative socio-legal approach, this paper critically describes how the industry uses the hegemonic methods manifested in CSR campaigns, which contradict the ethical principle to secure its market dominance. As a result, the partial legal approach to tobacco control regarding CSR encountered minimalist market interventions from the government, which emerges as the main causes of such an anomaly. As the tobacco control challenge predictably gets more difficult on the verge of an economic downturn, the urgency of accessing the FCTC is highly crucial to saving us from the upcoming demographic calamity.

KEYWORDS: Tobacco Industry, Business & Human Rights, Corporate Hegemony.
ETNOMATEMATIKA PADA AKTIVITAS PEMBUATAN BATIK MOTIF TEMBAKAU DI RUMAH PRODUKSI BATIK NHORA PENGESTU AMBULU SEBAGAI BAHAN PAKET SOAL TES
Authors: Cahyanti Endah Dwi
Published: February 2021

Ethnomatematics is the science of mathematics practiced by a cultural group where the society has unconsciously applied the concept of mathematics. The purpose of this study is to describe ethnomatemics in the activity of making tobacco motifs and to produce test packages. This type of research is a qualitative research with an ethnographic approach. There are three subjects in this study, S1 as the maker of patterns / designs, color locking, and "nglorod", S2 as a dyeing and coloring, and S3 as the maker of batik cap. Data collection methods used are observation, interviews, and documentation. This research is focused on the tobacco making batik activity. The results of this study indicate the existence of ethnomatematics which includes activities: counting, measuring, and designing. Ethnomatematics in this study was made as a test package in the form of descriptive questions for even ninth grade students.
Supporting Literacy and Positive Identity Negotiations with Multimodal Comic Composing
Authors: Moses Lindsey , Reid Stephanie
Published: February 2021

This study explores how an alternative writing unit with a focus on comics, choice, and publishing supported positive identity development in a fourth-grade classroom. Many traditional literacy practices with an emphasis on skills marginalize students from under-represented populations. This study reports literacy practices that countered the production of previously established unequal relationships and instead supported bilingual students’ negotiation of positive identities. We conducted an analysis of two bilingual case studies to examine the ways in which the shift from traditional literacy skills/practices to multimodal formats provided opportunities for students who were traditionally marginalized to renegotiate identities as experts and authors.
Russian and US Experience of Territorial Megaprojects
Authors: Batmanova V. , Zhukov A. , Mitrofanova I. , Mitrofanova I.
Published: February 2021

Phenomenon of the megaprojects as an instrument for the development of territories has not been studied thoroughly by the national economic science. There is lack of integrated, comparative analysis of the creation and the realization of territorial megaprojects in Russia and other countries. Authors of the article have set the goal to fill in this gap. A large scale investment project can obtain the status of the megaproject if it is characterized by a complicated character, high costs, systematic character and relevance of the realized targets. In the modern Russia the reconstruction of the historic territorial megaprojects and the realization of new ones as a relevant tool of the strategic territorial management is becoming the manifestation of contemporary institutional, organizational and informational transformations of the economic space of the global economic system. In contrast to financial investments, megaprojects are oriented on a real material result, having a considerable prolonged impact on the economic space. The authors regard infrastructural megaprojects construction of Transsib and BAM. The reasons of their achievements and failures are studies. The sustainable development of the regions of the Far East and Zabaikalye, the solution of important federal and regional tasks in the use of the resource, industrial and transit potential of the East of the country is connected mainly with the realization of the integrated infrastructural project of BAM’s and Transsib’s reconstruction. The article reveals the plans of the Government of the Russian Federation concerning the modernization of these megaprojects that will increase the capacity of BAM and Transsib by the year 2020 up to 75 million tons a year. The life cycle of the modern megaproject "Ural Industiral – Ural Polar" is revealed. The project was directed at the formation of a new economic skeleton in the Ural Federal District and creation of the prerequisites for the development of its problematic regions. Authors come to conclusion that this megaproject actually failed. It downgraded from a strategically important one into a conglomerate of local investment projects that are not interconnected by a single basic conception. Inevitably, this undermined its complex integration effect. The Olympic project “Sochi 2014” highlights the problem of post-project utilization of objects of territorial megaprojects. Only a few of them can immediately serve as drivers of regional economic complex. Others mostly generate losses. A set of policies and special measures of the regional authorities is needed to turn them profitable. The article also touches upon the American experience of megaprojects of the territorial development (Tennessee Valley Authority, Appalachian Regional Commission). Authors insist that analysis of the American experience can help the modernization of the strategic territorial management in Russia.
Legal Foundations of Russia’ Military Security
Authors: Yakovlev V.
Published: February 2021

The military security of the Russian Federation in the face of external and internal threats is still primarily important. In this context the rightful principles of defense and security in Russia play a discrete role. The article provides the analysis of these principles for a legal framework of the Russian military security regulation. It reveals system problems, gaps and contradictions of the legal regulation. Complex and urgent measures for the legal system and legal instruments improvement are suggested in the article. It is proposed to develop a number of regulatory acts needed by reason of the blanket character of the Federal Defense Act. Among these are: The Armed Forces of the Russian Federation Act, The Operational Equipment of the Territory of the Russian Federation for the Purpose of Defense Act, The Armed Forces of the Russian Federation Management and Control during the War Act, etc. Problems of the social relations legal regulation in the defense and security sphere are systemic and complex, require a constant attention on the part of government agencies and a painstaking daily work of legislators. It should facilitate bringing the defense and military security system of the Russian Federation to a fundamentally different, whole new level relevant to the present level of external and internal threats.
Bundeswehr Reform: Three Stages
Authors: Sindeev A.
Published: February 2021

The article examines the state of the Bundeswehr reform in the context of the European Security and Defence Policy. The emphasis is laid on the process of major decisions preparation, problems to be solved in the course of the reform, the state of the Bundeswehr, the role of a subjective facilitation, and on the approaches of three German Ministers of Defence. According to the article, the Bundeswehr is being transformed into an offensive army. It will be active outside Germany, and is gradually changing its essence as a parliamentary army. The reform was prepared gradually and imperceptibly to the public. In 2010, the Weise-Commission presented the reform proposals. The new Defence Minister De Maizière left these proposals unchanged. His merit was a good management of the reform. The scandal with the Euro Hawk forced him to resign. As the next Minister Von der Leyen was new to the Ministry of Defence, the reform of the Bundeswehr stopped. Germany will have to realize a dual strategy: а) to strengthen the military cooperation in the EU and NАТО; b) to maintain the own strength before the emergence of the EU security and defence structures and mechanisms.
EFEKTIVITAS EXPRESSIVE WRITING DALAM MENINGKATKAN SELF-ESTEEM PECANDU NARKOBA DI PROGRAM REHABILITASI BNN BADDOKA
Authors: Utami Safaruddin Nurul , Murdiana Sitti , Ridfah Ahmad
Published: February 2021

Low self-esteem is one of the problems that causes individual drugging. Expressive writing is one of the interventions that is able to influence self-esteem improvement on drug addicts. This research aimed to figure out the effectivity of expressive writing in improving self-esteem of drug addicts at rehabilitation of BNN Baddoka. It applied quasy experimental design, one-group pretest-postest design. The research subject were 8 drug addicts with low and medium self-esteem. Self-esteem scale was used as the research measurement adopted from Widyastuti (2002) with realibility of 0.992. The data were analyzed using Wilcoxon nonparametrical statistic test. The result reveals that expressive writing improved self-esteem of drug addicts at rehabilitation program of BNN Baddoka, the increase was seen from the significant difference between self-esteem score when pretest with posttest (W = 2, mean pretest = 11,625, mean posttest = 14,625, p = 0.026). Of the eight subjects, six of them experienced an increase in score, one subject decreased the score, and one subject did not change the score. Expressive writing can be used to improve self-esteem of drug addicts, so it can also be given in rehabilitation program
Efektivitas Pelatihan Hardiness untuk Meningkatkan Sikap Tangguh dalam Menyelesaikan Masalah
Authors: Mailoa Joice , Ramdani Aulia
Published: February 2021

Any changes in the system of an organization could be stressful. Having hardiness would be important to deal with a problem. This study aims to seek out the effectiveness of hardiness training in improving problemsolving. A quasi-experimental design with one group pretest-post test design was applied. There were sixteen employees of various organizational divisions enrolled in this study. Data were collected before and after the six-session of hardiness training using the Brief COPE scale and the Dispositional Resilience Scale (DRS-15) developed by Bertone. Results from the Wilcoxon signed-rank test showed that there was no significant difference in the attitude of the effectiveness of problem-solving among employees before and after training (p>0,05). However, there were differences in knowledge of understanding hardiness before and after training. (p=.002, p>0,05). It can be concluded that hardiness training could increase the knowledge about hardiness; but not the attitude toward problem-solving.
Pengaruh Program Empathic Caring Consultation terhadap Professional Quality of Life Pada Psikolog
Authors: Asbar Anya , Khairani Maya , Mawarpury Marty
Published: February 2021

This study aims to determine the effect of the Empathic Caring Consultation (ECC) program on Professional Quality of Life (ProQOL) in psychologists. This study involved seven psychologists. The research sample was taken using purposive sampling method. The research method used was one group pretest-post test design. ProQOL is measured using the Professional Quality of Life Version V scale, while the implementation of ECC training refers to the concept of Prawitasari. Analysis using Wilcoxon signed-rank test with a significant value (p) = 0.340 (BO); 0.932 (STS); 0.496 (CS) (p> 0.05). The results of the study showed that there was no effect of the ECC program on ProQOL on psychologists. This is because there are several variations of the three ProQOL components before and after treatment.
Efektivitas Metode Multisensory dalam Meningkatkan Kemampuan Memulai Membaca Pada Anak Tunagrahita Ringan
Authors: Aba bahrun Mustofa Muhamad , Mukhoyyaroh Tatik
Published: February 2021

This study aims to test the effectiveness of the multisensory method of early reading skills in children with mild mental retardation in grade VI at SLB (Special School) Bina Bangsa, Ngelom, Taman, Sidoarjo. The research method used in this research is the Single Subject Research (SSR) experimental method with the ABA design model. The subject in this study was a grade 6 student with mental retardation at Special School (SLB) Bina Bangsa, Ngelom, Taman, Sidoarjo. The data collection technique used in this study was an initial reading ability test. The data analysis technique in this research is descriptive statistical data analysis techniques with data analysis in conditions and between conditions. The results of this study indicate that the multisensory method is effective in improving early reading skills in mildly retarded children.
Phytochemical content of traditional herbal medicines in South and Central Kalimantan
Authors:   Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Banjarbaru, Lestari Fajar , Andriani Susy ,   Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Banjarbaru
Published: February 2021

The use of medicine derived from natural ingredients had already begun since ancestors and passed down from generation to generation. However, the properties of those various plants were not clinically been proven. This study aims to find out phytochemical content of medicinal forest plants based on information from the local communities. The study was conducted in two ecosystem types namely wetland ecosystem in peat swamp of Sungai Rasau, Sebangau National Park, Central Kalimantan and dryland ecosystem in Meratus Mountain slope, Peramasan Bawah village, South Kalimantan. Vegetation data in the field was collected by making line transect. Phytochemical analyses qualitatively was done in the Faculty of Math and Natural Science laboratory of Lambung Mangkurat University, while specimen samples were taken from some species that commonly used by the local communities for medicinal purpose as 100 to 150 g of gross weight of each plants. Then the plant specimens were tested for their secondary metabolites comprised steroids/triterpenoids, quinone, tannin, flavonoids, saponins, and alkaloids tests in the laboratory. The research results showed that medicinal plants used by local communities were still available in their natural habitat.
Dehydroepiandrosterone Effect on Toxoplasma gondii: Molecular Mechanisms Associated to Parasite Death
Authors: Morales-Montor Jorge
Published: February 2021

Toxoplasmosis is a zoonotic disease caused by the apicomplexa protozoan parasite Toxoplasma gondii. This disease is a health burden, mainly in pregnant women and immunocompromised individuals. Dehydroepiandrosterone (DHEA) has proved to be an important molecule that could drive resistance against a variety of infections, including intracellular parasites such as Plasmodium falciparum and Trypanozoma cruzi, among others. However, to date it has not been explored the role of DHEA on T. gondii. In here, we demonstrated for the first time the toxoplasmicidal effect of DHEA on extracellular tachyzoites. Ultrastructural analysis of treated parasites showed that DHEA alters the cytoskeleton structures, leading to the loss of the organelle structure and organization, as well as the loss of the cellular shape. In vitro treatment with DHEA reduces the viability of extracellular tachyzoites and passive invasion process. 2D SDS-PAGE analysis revealed that in the presence of the hormone a progesterone receptor membrane component (PGRMC) with a cytochrome b5 family heme/steroid binding domain-containing protein was expressed, while the expression of proteins that are essential for motility and virulence was highly reduced. Finally, in vivo DHEA treatment induced a reduction of parasitic load in male, but not in female mice.
PENGARUH TEAM TEACHING TERHADAP HASIL BELAJAR PEMROGRAMAN WEB SISWA KELAS X SMK MALAKA JAKARTA
Authors: Arindy  , Moch. Sukardjo  , Aodah Diamah
Published: February 2021

Abstrak - Tujuan penelitian adalah untuk mengetahui pengaruh penerapan team teaching pada materi pokok format teks halaman web terhadap hasil belajar siswa kelas X TKJ 1 SMK  Malaka Jakarta.Penelitian yang dilakukan merupakan penelitian pra eksperimental dengan model one-group pre-test post-test design. Sampel penelitian diambil secara acak sebanyak 30 siswa. Perlakuan yang diberikan pada siswa yaitu siswa diajar menggunakan metode pembelajaran team teaching (tim pengajar). Sebelum diberi perlakuan, siswa diberikan pre-test untuk mengetahui kemampuan awal siswa, kemudian setelah diberi perlakuan siswa diberikan post-test untuk mengetahui sejauh mana peningkatan hasil belajar siswa. Instrumen pengumpulan data berupa tes, pada tes ini soal-soal diberikan dalam bentuk pilihan ganda.Instrumen pengumpulan data berupa tes, pada tes ini soal-soal diberikan dalam bentuk pilihan ganda. Dari hasil analisa data pada uji hipotesis didapat harga yaitu 25,15 dan  untuk satu pihak yaitu 2,462, bila dibandingkan antara  dan  maka  >  atau 25,15 > 2,462.Kesimpulan yang dapat diambil adalah terdapat pengaruh terhadap hasil belajar siswa yang diajar menggunakan metode pembelajaran team teaching, khususnya untuk materi pokok format teks halaman web.

Kata Kunci : Metode, Pembelajaran, Pengaruh, Team Teaching, hasil belajar, SMK Malaka Jakarta.

 

Abstract - The purpose of this research is to know the influence of the implementation of team teaching on the subject matter of the text format of the web page to the learning result of the students of class X TKJ 1 SMK Malaka Jakarta. The research is an experimental pre experiment with one-group pre-test post-test design. The sample was taken randomly as many as 30 students. The treatment given to students is that students are taught using Teaching Teaching Method (Teaching Teams). Before being treated, students are given a pre-test to determine the students' initial ability, then after being given the students treatment is given a post-test to find out how far the improvement of student learning outcomes. Instrument data collection in the form of test, in this test the questions are given in the form of multiple choice. From the results of data analysis on the hypothesis test obtained price of  is 25,15 and for one party is 2.462, when compared between  and , then > or 25,15> 2,462.

The conclusion that can be taken is there is an influence on the learning outcomes of students who are taught using teaching team teaching methods, especially for the subject matter of text format web pages.

Keywords: Method, Learning, Influence, Team Teaching, learning outcomes, SMK Malaka Jakarta.
PERANCANGAN SISTEM DISPENSER OTOMATIS DENGAN VOICE RECOGNITION UNTUK PENYANDANG TUNANETRA DENGAN SENSOR DETEKSI GELAS DAN SENSOR KETINGGIAN AIR BERBASIS MIKROKONTROLER
Authors: Baskoro Adji , Pitoyo Yuliatmojo  , Aodah Diamah
Published: February 2021

Tujuan penelitian ini adalah membuat sistem yang dapat memudahkan penyandang tunanetra dalam menggunakan dispenser air minum. dan memodifikasi dispenser agar dapat menuangkan air secara otomatis dengan menggunakan EasyVR Voice Recognition untuk menuangkan air ke dalam gelas dan menggunakan sensor pendeteksi gelas dan sensor pendeteksi level air pada gelas. Penelitian ini dilakukan dengan menggunakan metode penelitian dan pengembangan yang meliputi perencanaan, analisis kebutuhan perancangan, pengujian, implementasi perangkat keras dan perangkat lunak. Hasil dari penelitian ini menunjukan bahwa dispenser otomatis dengan Voice Recognition untuk penyandang tunanetra dengan sensor deteksi gelas dan sensor ketinggian air berbasis mikrokontroler yang telah dirancang sebelumnya berhasil dibuat, dan dispenser ini telah dicoba dengan menggunakan 3 jenis gelas dengan ketinggian berbeda. Pada saat dispenser mendeteksi gelas maka buzzer akan aktif sebagai tanda bahwa gelas sudah terdeteksi oleh sensor. Kemudian, ketika pengguna mengucapkan kata perintah “panas” atau “dingin” maka dispenser akan aktif dan menuangkan air berdasarkan ketinggian sensor yang membaca gelas. Ketika level air sudah mendekati tinggi sensor pendeteksi gelas, maka dispenser akan berhenti menuangkan air dan buzzer akan aktif sebagai tanda air sudah memenuhi gelas
RANCANG BANGUN BANDPASS FILTER MIKROSTRIP METODE HAIRPIN PADA FREKUENSI 2.3 GHZ
Authors: Orifansyah Afif , Djatmiko Wisnu , Maruddani Baso
Published: February 2021

Abstrak. Penelitian ini bertujuan untuk merancang, menguji bandpass filter mikrostrip dengan metode hairpin pada frekuensi (2,3 GHz sampai dengan 2,4 GHz), dengan bandwidth 100MHz. Penelitian dilaksanakan di Laboratorium Telekomunikasi Lantai 4 (Gedung L1) Universitas Negeri Jakarta, pada bulan Maret – Oktober 2016.Bandpass mikrostrip metode hairpin merupakan pengembangan bandpass mikrostrip edge coupled, Konsep Haipin filter memiliki panjang resonator λ/2 yang terkopel secara paralel dan bentuk resonatornya seperti huruf ‘U’. Teknik ini merupakan pengembangan dari parallel couple dimana saluran couple line λ/4 dilipat sebesar L atau ((λ/4)-b), b adalah panjang saluran yang tidak mengalami kopling.Dari hasil penelitian bandpass filter hairpin dibuat dan diuji secara simulasi dengan hasil perhitungan kemudian simulasi menggunakan hasil fabrikasi dan pengukuran. Sehingga dapat disimpulkan bahwa bandpass filter hairpin ini berhasil didesain pada perangkat lunak CST Microwave Studio, difabrikasi, dan diuji menggunakan alat ukur network Analyzer dengan hasil parameter frekuensi cut off 2,355 GHz, bandwidth sebesar 106 MHz.
EFEKTIVITAS E-LEARNING BERBASIS MOODLE DI SMK KARYA GUNA KELAS XI TKJ II MATERI AJAR PRAKTIK JARINGAN KOMPUTER
Authors: Desi Andriani Sitanggang  , Bambang P. Adhi  , Diat Nurhidayat
Published: February 2021

Penelitian ini dilakukan dengan tujuan untuk melihat sejauh mana peserta didik dan guru dalam menerima e-learning yang berbasis moodle pada SMK Karya Guna dalam proses pembelajaran kedepannya. Penelitian ini menggunakan pendekatan penelitian dan pengembangan (Research and Development) yang bertempat di SMK Karya Guna. Penelitian dilakukan sejak Agustus 2017 hingga Juli 2018. Penelitian ini dilakukan terhadap siswa kelas XI TKJ II yang telah mengikuti pelajaran Praktik Jaringan Komputer dan guru TKJ SMK Karya Guna. Tahapan dari penelitian ini adalah potensi dan masalah yang ada, rancangan produk, pembuatan produk, uji coba produk, revisi produk dan implementasi. Penelitian ini diujikan kepada dosen ahli media, dosen ahli e-learning, guru dan siswa. Hasil pengujian dari ahli media untuk versi 3 mendapatkan nilai presentase 88%, oleh ahli e-learning sebesar 85,71, oleh siswa dan guru (kelompok besar) sebesar 92,26% dan  90%. Berdasarkan hasil uji tersebut, dapat disimpulkan bahwa e-learning berbasis moodle versi ketiga sesuai dan dapat diterima dengan baik untuk diterapkan pada mata pelajaran Praktik Jaringan Komputer.
PENGARUH PELATIHAN PENYUSUNAN SOAL MENGGUNAKAN MOODLE TERHADAP KINERJA GURU DALAM MENYUSUN SOAL TEST DI SMAN 100 JAKARTA
Authors: Ruslan Hadi  , Yuliatri Sastrawijaya  , Vina Oktaviani
Published: February 2021

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan penyusunan soal menggunakan Moodle terhadap kinerja guru dalam menyusun butir soal test di SMA Negeri 100 Jakarta. Penelitian ini menggunakqn metode survey (field study) dengan menggunakan pendekatan korelasional. Sampel penelitian adalah seluruh anggota populasi berjumlah 37 orang. Metode pengumpulan data menggunakan angket dan dokumentasi. Berdasarkan hasil pengujian data yang telah dilakukan ditemukan bahwa pengujian hipotesis memperoleh keputusan bahwa terdapat hubungan positif dan signifikan antara Pelatihan Penyusunan Soal dengan Kinerja Guru dalam Menyusun Soal Test di SMAN 100 Jakarta. Dari perhitungan uji normalitas data, diperoleh hasil untuk data instrumen kinerja guru dengan Lhitung = 0,138 dan data instrumen pelatihan penyusnan soal Lhitung = 0,141 dengan Ltabel = 0,146. Artinya, data dari kedua instrumen berdistribusi normal. Sedangkan untuk hasil pengujian hipotesis memperoleh nilai 0,735. Artinya, korelasi antara variabel x dan variabel y kuat. Data ini menunjukkan bahwa terdapat hubungan yang positif antara pelatihan penyusunan soal menggunakan moodle dengan kinerja guru dalam menyusun soal tes di SMAN 100 Jakarta
Automated Construction of Expeditionary Structures (ACES) : Energy Modeling
Authors: Diggs Brandy N , Liesen Richard J. , Case Michael P. , Hamoush Sameer , Megri Ahmed C.
Published: February 2021

The need to conduct complex operations over time results in U.S. forces remaining in deployed locations for long periods. In such cases, more sustainable facilities are required to better accommodate and protect forward deployed forces. Current efforts to develop safer, more sustainable operating facilities for contingency bases involve construction activities that redesign the types and characteris-tics of the structures constructed, reduce the resources required to build, and reduce resources needed to operate and maintain the com-pleted facilities. The Automated Construction of Expeditionary Structures (ACES) project was undertaken to develop the capability to “print” custom-designed expeditionary structures on demand, in the field, using locally available materials with the minimum number of personnel. This work investigated large-scale automated “additive construction” (i.e., 3D printing with concrete) for construction applications. This document, which documents ACES energy and modeling, is one of four technical reports, each of which details a major area of the ACES research project, its research processes, and associated results, including: System Requirements, Construction, and Performance; Energy and Modeling; Materials and Testing; Architectural and Structural Analysis.
Revision of Ostrea (Gigantostrea) gigantica Solander var. oligoplana Sacco and Ostrea (Ostrea) isseli Rovereto (Oligocene, Tertiary Piedmont Basin, NW Italy)
Authors:   DISTAV - Università degli Studi di Genova, Bonci Maria Cristina , Dagnino Davide , Mandarino Andrea , Mazzini Aaron , Piazza Michele
Published: February 2021

The aim of this paper is the revision and redocumentation of Ostrea (Gigantostrea) gigantica Solander var. oligoplana Sacco, 1897, Ostrea (Ostrea) isseli n. denom. Rovereto, 1897, and Ostrea (Ostrea) isseli n. denom. var. elongata Rovereto, 1897. These taxa are from the Oligocene strata of the Molare Formation (Tertiary Piedmont Basin, southern Piedmont - central Liguria, NW Italy). The syntypes of O. (G.) gigantica var. oligoplana are in the "Collezione Bellardi e Sacco", at the Museo Regionale di Scienze Naturali di Torino; the syntypes of O. (O.) isseli and O. (O.) isseli var. elongata are in the "Collezione BTP" (BTP Collection, at the Dipartimento di Scienze della Terra, dell'Ambiente e della Vita - DISTAV - of the Università di Genova). The var. oligoplana is here moved to the species rank and allocated to the genus Pycnodonte Fischer von Waldheim, 1835. O. (O.) isseli and O. (O.) isseli var. elongata are recognized as junior synonyms of the Sacco's taxon. Rovereto (1897) compared his new species with Ostrea subgigantea Raulin & Delbos, 1855, a poorly known taxon, that is here figured for the first time and shown to represent a species different from P. oligoplana (Sacco, 1897).
Bilayer Ventilated Labyrinthine Metasurfaces With High Sound Absorption and Tunable Bandwidth
Authors: Du Jiayuan , Luo Yuezhou , Zhao Xinyu , Sun Xiaodong , Song Yanan , Hu Xinhua
Published: February 2021

The recent advent of acoustic metamaterials offers unprecedented opportunities for sound controlling in various occasions, whereas it remains a challenge to attain broadband high sound absorption and free air flow simultaneously. Here, we demonstrated, both theoretically and experimentally, that this problem can be overcome by using a bilayer ventilated labyrinthine metasurface. By altering the spacing between two constituent single-layer metasurfaces and adopting asymmetric losses in them, near-perfect (98.6%) absorption is achieved at resonant frequency for sound waves incident from the front. The relative bandwidth of absorption peak can be tuned in a wide range (from 12% to 80%) byadjusting the open area ratio of the structure. For sound waves from the back, the bilayer metasurface still serves as a sound barrier with low transmission. Our results present a strategy to realize high sound absorption and free air flow simultaneously, and could find applications in building acoustics and noise remediation.
Global patterns of geo-ecological controls on the response of soil respiration to warming
Authors: Haaf David , Six Johan , Dötterl Sebastian
Published: February 2021

While soil respiration is known to be controlled by a large range of biotic and abiotic factors, its temperature sensitivity in global models is largely related to climate parameters. Here, we show that temperature sensitivity of soil respiration is primarily controlled by interacting soil properties and only secondarily by vegetation traits and plant growth conditions. Temperature was not identified as a primary driver for the response of soil respiration to warming. In contrast, the non-linearity and large spatial variability of identified controls stress the importance of the interplay among soil, vegetation and climate parameters in controlling warming responses. Global models might well predict current soil respiration, but not future rates because they neglect the controls exerted by soil development. Thus, to accurately predict the response of soil respiration to warming at the global scale, more observational studies across pedogenetically diverse soils are needed rather than focusing on the isolated effect of warming alone.
Phenylpropanoids from Liparis nervosa and their in vitro antioxidant and α-glucosidase inhibitory activities
Authors: liu liang , zou meijia , yin qimeng , zhang zhenyang , zhang xianwen
Published: February 2021

Eleven phenylpropanoids were isolated from the whole grass of Liparis nervosa, an orchidaceous medicinal plant. Their structures were elucidated as (+)-Syringaresinol (1), (-)-Syringaresinol-4-O-β-D-glucopyranoside (2), Sinapaldehyde (3), Coniferyl aldehyde (4), Syringin (5), Sinapaldehye glucoside (6), 2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone (7), C-Veratroylglycol (8), 7S, 7′S, 8R, 8′R-icariol A2 (9), Erigeside 2 (10), and Methylsyringin (11) by comparing the spectroscopic data and physicochemical constants from the isolated compounds with the data reported in the literature. Compounds 1 and 9 were found to have potent in vitro antioxidant activities in the DPPH and ABTS assays, and their IC50 values were lower than those of vitamin C. More importantly, compound 9 had a strong α-glucosidase inhibitory activity with an IC50 value of 43.76 ± 2.03 µM, which was much lower than that of acarbose (IC50 = 273.12 ± 11.84 µM), indicating that compound 9 has the potential for the development of hypoglycemic drugs. In conclusion, the present study suggests that phenylpropanoids may be the additional representative type of active constituents in L. nervosa, which provides a new line of evidence to understand this medicinal plant.
Description of Sandaracinobacter Hominis Sp. Nov., Isolated From Human Skin
Authors: Qu Ping-hua , Luo Hai-min , Feng Jun-hui , Dong Lei , Li Song , Ming Yu-zhen , Li Wen-jun , Lin Ying , chen cha
Published: February 2021

Strain SZY PN-1T, representing a novel Gram-negative, aerobic, non-motile, rod-shaped and yellow-pigmented bacterium, was isolated from a skin sample of a healthy Chinese people. Growth of SZY PN-1T optimally occurred at pH 7.0, at 30 ºC and tolerate up to 1.0 % (w/v) NaCl. According to the absorption spectrum, carotenoid was present in the cells. Comparative analysis of the 16S rRNA gene revealed that strain SZY PN-1T shared high similarities with Sandaracinobacter sibiricus RB16-17T (97.1 %) and Sandaracinobacter neustonicus JCM 30734T (96.6 %), respectively. Phylogenetic analysis of 16S rRNA gene sequences together with protein-concatamer tree showed that SZY PN-1T formed a separate branch within the genus Sandaracinobacter. The DNA G+C content of the strain SZY PN-1T was 65.0 % (genome). The polar lipid profile included phosphatidylethanolamine, phosphatidylglycerol, two sphingoglycolipids, diphosphatidylglycerol, five unidentified glycolipids and seven unidentified lipids. The predominant fatty acids (> 10.0 %) were identified as C18:1 ω7c and/or C18:1 ω6c, C17:1 ω6c, C16:1 ω7c and/or C16:1 ω6c. The major respiratory quinone was ubiquinone Q-10. Based on the phenotypic and genotypic features, we proposed Sandaracinobacter hominis sp. nov. with type strain SZY PN-1T (= KCTC 82150T = NBRC 114675T).