bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrating remote sensing-derived evapotranspiration and ground-monitored discharge data for the improvement of hydrological modelling: A case study of the Sekong River Basin
Authors: Ang Raksmey , Shrestha S. , Virdis Salvatore , KC Saurav
Published: February 2021

This study analyses the efficiency of integrating remotely sensed
evapotranspiration into the process of hydrological model calibration. A
joint calibration approach, employing both remote sensing-derived
evapotranspiration and ground-monitored streamflow data was compared
with a conventional ground-monitored streamflow calibration approach
through physically-based hydrological, Soil and Water Assessment Tool
(SWAT) model setups. The efficacy of the two calibration schemes was
investigated in two modelling setups: 1) a physically-based model with
only the outlet gauge available for calibration, and 2) a
physically-based model with multiple gauges available for calibration.
Joint calibration was found to enhance the skill of hydrological models
in streamflow simulation compared to ground-monitored streamflow-only
calibration at the unsaturated zone in the upstream area, where
essential information on evapotranspiration is also required.
Additionally, the use of remote sensing-derived evapotranspiration can
significantly improve high flow compared to low flow simulation. A more
consistent model performance improvement, obtained from using remote
sensing-derived evapotranspiration data was found at gauged sites not
used in the calibration, due to additional information on spatial
evapotranspiration in internal locations being enhanced into a
process-based model. Eventually, satellite-based evapotranspiration with
fine resolution was found to be competent for calibrating and validating
the hydrological model for streamflow simulation in the absence of
measured streamflow data for model calibration. Furthermore, the impact
of using evapotranspiration for hydrologic model calibration tended to
be stronger at the upstream and tributary sub-basins than at downstream
sub-basins.
Aortic homograft for aortic valve replacement in patient with Alpha-Gal allergy
Authors: VAN Simon DANG , fouquet olivier , Jeanneteau Audrey , LECLERE Jean-Marie , Baufreton Christophe
Published: February 2021

Allergy to Galactose-Alpha-1,3-Galactose is an allergy to mammalian
proteins, that are present on the surface of standard bioprosthestic
valves, and could result in catastrophic allergic reaction or may cause
early deterioration of the bioprostheses. Aortic homograft is an
acceptable alternative to standard prosthetic valves (biological and
mechanical) to avoid a potential allergic manifestation and the need of
definitive oral anticoagulation. We report the implantation of an aortic
homograft in a patient with an aortic stenosis who present a documented
Alpha-Gal allergy.
A Second Cryoballoon System- new and improved?
Authors: Su Wilber
Published: February 2021

Generations of cryoballoon transformed the atrial fibrillation ablation
landscape. New advancements continue to make cryoballoon more successful
and safer treatment. A new cryoballoon PolaRx from Boston Scientific has
unique features compared to that of the Medtronic Arctic Front Advance
system. Comparison of the two available cryoballoons will require
ongoing larger trial and clinical experience.
Climate Justice and Democracy: A Normative Approach
Authors: Hasan Mamudul
Published: February 2021

This paper tackles a highly relevant issue, namely the relationship between climate justice and democracy. The driving motivation of the paper is to ask what principles of climate justice demand from democracies. The paper explores intrinsic and instrumental arguments and develops a sufficiency account: citizens are entitled to the emissions necessary not only to realize their basic needs but to participate as equals in political decision making.
Against State Censorship of Thought and Speech: The “Mandate of Philosophy” contra Islamist Ideology
Authors: Swazo Norman
Published: February 2021

Contemporary Islam presents Europe in particular with a political and moral challenge: Moderate-progressive Muslims and radical fundamentalist Muslims present differing visions of the relation of politics and religion and, consequently, differing interpretations of freedom of expression. There is evident public concern about Western “political correctness,” when law or policy accommodates censorship of speech allegedly violating religious sensibilities. Referring to the thought of philosopher Baruch Spinoza, and accounting for the Universal Declaration of Human Rights, the Universal Islamic Declaration of Human Rights, and various empirical studies on the religious convictions of Muslims, it is argued here that: (1) sovereign European state powers should be especially cautious of legal censorship of speech allegedly violating Muslim religious sensibilities; and (2) instead of legal moves to censorship, European states should defer to the principle of separation of religion and state (political authority). Further, a reasonable interpretation of Islamic jurisprudence allows that matters of religious difference may be engaged and resolved by appeal to private conscience and ethical judgment, rather than by appeal to public law per se.1 In so far as they are representative of contemporary scholarship, the interpretative positions of Ziad Elmarsafy, Jacques Derrida, and Nasr Abū Zayd are presented in illustration of this latter point.
The effectiveness of locally injected platelet-rich plasma on orthodontic tooth movement acceleration:
Authors: Li Ziyu , Zhou Jialiang , Chen Song
Published: February 2021

Objectives

To critically appraise the current evidence available from animal studies pertaining to the effectiveness of platelet-rich plasma (PRP) in accelerating orthodontic tooth movement.

Materials and Methods

Electronic searches of nine databases were conducted up to June 2020, followed by a hand search of the reference list of eligible studies. The study design required was prospective controlled animal studies. The primary outcome assessed was the rate of orthodontic tooth movement. The secondary outcome evaluated was histological changes after PRP application. Following study retrieval and selection, relevant data were extracted. Risk-of-bias (RoB) assessment was done using the Systematic Review Center for Laboratory Animal Experimentation's Risk of Bias Tool (SYRCLE's Risk of Bias Tool). Two review authors conducted the work of searching, study selection, and quality assessment independently and in duplicate.

Results

Of 193 studies, 5 animal studies were included in this systematic review. Three studies found a positive correlation between PRP injection and tooth movement acceleration, along with corresponding histological changes. Two studies detected no significant difference in tooth movement rate after PRP application.

Conclusions

Based on the current limited evidence, the efficacy of PRP on tooth movement acceleration remains debatable. More well-designed randomized controlled trials involving humans are called for to obtain more clinically significant conclusions.
Impact of Type 1 Diabetes in the Developing Brain in Children: A Longitudinal Study
Authors: Mauras Nelly , Buckingham Bruce , White Neil H. , Tsalikian Eva , Weinzimer Stuart A. , Jo Booil , Cato Allison , Fox Larry A. , Aye Tandy , Arbelaez Ana Maria , Hershey Tamara , Tansey Michael , Tamborlane William , Foland-Ross Lara C. , Shen Hanyang , Englert Kimberly , Mazaika Paul , Marzelli Matthew , Reiss Allan L. , (DirecNet) the Diabetes Research in Children Network
Published: February 2021

Objective: To
assess whether previously observed brain and cognitive differences between children
with type 1 diabetes and non-diabetic controls persist, worsen or improve as
children grow into puberty, and whether
differences are associated with hyperglycemia.

Research Design & Methods: 144 children with type 1 diabetes and 72 non-diabetic
age-matched controls, mean±SD age 7.0±1.7 years at baseline, 46% female, had
unsedated magnetic resonance imaging and cognitive testing up to 4 times over 6.4±0.4
years (5.3-7.8); HbA1C and continuous glucose monitoring were done
quarterly.  FreeSurfer-derived brain volumes and cognitive
metrics assessed longitudinally were compared between groups using mixed
effects models at 6, 8, 10 and 12 years. Correlations with glycemia were
performed.

Results: Total brain, gray and
white matter volumes, full-scale and verbal IQ were lower in the diabetes group
[at 6, 8, 10 and 12 years estimate group differences in full-scale IQ
respectively:

-4.15, -3.81, -3.46,
-3.11, p <0.05; total brain volume: -15410 mm3x103,
-21159, -25548,

-28577, p <0.05 at 8, 10 and 12 years]. Differences at baseline persisted or increased
over time, brain volumes and cognitive scores negatively correlated with a
life-long HbA1C index and higher sensor glucose in diabetes.

Conclusions: Detectable
changes in brain volumes and cognitive scores persist over time in children
with early-onset type 1 diabetes followed longitudinally; these differences are
associated with metrics of hyperglycemia. Whether these changes can be reversed
with scrupulous diabetes control requires further study. These longitudinal data
support the hypothesis that the brain is a target of diabetes complications in
young children.
In Search of Dimensions of Bildung: A Quantitative Approach
Authors: Tahirsylaj Armend , Werler Tobias Christoph
Published: February 2021

This exploratory study set out to quantitatively address the concept of Bildung and its associated dimensions of self-determination, co-determination and solidarity per the deliberations of Wolfgang Klafki. It used nationally representative European Social Survey (ESS) data from nine European countries representing Didaktik and curriculum education traditions. It was hypothesised that Bildung dimensions would be more present in Didaktik than curriculum countries. Applying mean comparison, two-sample Wilcoxon rank-sum test, t-test and multivariate regression analyses as quantitative methods, the results provide empirical evidence that dimensions of Bildung are indeed more present in countries with Didaktik than in countries with curriculum traditions. Further research is needed to address some of the limitations of the present study.
Forbilder og danning i profesjonsutdanningene: Casestudie – Krigsskolen
Authors: Magnussen Leif Inge , Torgersen Glenn Egil , Boe Ole
Published: February 2021

This research paper investigates the meaning of role models in higher education. As a case, the Norwegian Military Academy (NMA), which educates military officers for the Norwegian army, is used. Particularly investigated is how role models can be seen as resources in the “learning landscape” surrounding the army officer cadets through their 3 years of learning and Bildung processes. Data used in this work stem from an ethnographic fieldwork following a class of cadets at the NMA through their practical training, off-campus. Officer cadets in interviews report both intentional and unintentional use of role models as a resource in their learning landscapes. By critical educational interpretation of this ongoing practice, using the frame of Wolfgang Klafkis Bildungstheory and “the perfect action principle”, the relationships between this practice and the NMA’s own Bildungideals are questioned. Role models are at the NMA linked to their own leaders, culture and practice. This narrows what is valid practice and can enforce a self-driven power structure and a one-dimensional understanding of how leadership should be performed, where only people within this culture can be seen as participants. We argue that the risks of this NMA practice are related to organisational narcissism and a possible distorted reality orientation, where the NMA fails it’s given educational tasks related to the need of the society and future demands of war.
ROBOTICS IN THE PENITENTIARY EDUCATION SYSTEM AS ONE OF THE WAYS OF PRISONERS’ RESOCIALIZATION
Authors: Курушин Павел Дмитриевич
Published: February 2021

Рассматривается проблема перевоспитания заключенных, проходивших обязательное обучение в школе при колонии, средствами, которые предоставляет школьное дополнительное образование. Анализируются важные для ресоциализации психологические аспекты личности заключенных, на основе которых делается предположение о полезности изучения робототехники в школе при исправительных колониях. Затрагиваются ключевые характеристики как самого предмета «робототехника», так и отношение заключенных к изучению данной области.
На примере учеников класса показывается эффективность влияния робототехники на эмоциональное состояние заключенных обучающихся, что мотивирует их к изучению остальных предметов основной образовательной программы школы. Эксперимент проведен на базе муниципального общеобразовательного учреждения при колонии в городе Томске, который наглядно показывает существенное улучшение качества усваиваемых знаний заключенными. Представлены результаты эксперимента.

The proposed article examines the problem of rehabilitation of convicts who completed compulsory education at the colony school (hereinafter referred to as a penitentiary-type school), which is urgent for modern society, by means of additional school education. The psychological aspects of the personality of prisoners, important for resocialization, are analyzed, on the basis of which an assumption is made about the usefulness of studying robotics at school in correctional colonies. The key characteristics of both the subject of robotics itself and the attitude of prisoners to the study of this field are touched upon.
Using the example of students from one of the school classes, the effectiveness of the influence of robotics on the emotional state of prisoners is shown, which motivates them to study the rest of the subjects of the main educational program of the school. The experiment was carried out on the basis of a municipal educational institution at a colony in the city of Tomsk, which clearly shows a significant improvement in the quality of assimilated knowledge by prisoners. The results of the experiment are presented.
Effects of cognitive cehavioral play therapy techniques on low self-esteem among students
Authors: Aren Merikan , Duamit Aruna Rauna
Published: February 2021

This study aims to determined the effects of Cognitive Behavioral Play Therapy (CBPT) techniques on low self-esteem among UNIMAS Students. More specifically, this study identified the effects of Cognitive Behavioral Play Therapy (CBPT) techniques in experimental group at pretest and posttest on low self-esteem among UNIMAS students and to identified the effects of Cognitive Behavioral Play Therapy (CBPT) techniques in control group at pretest and posttest on low self-esteem among UNIMAS students. A case study design is distributed questionnaire called as Rosenberg Self-Esteem Scale (RSES) and counselling sessions. Purposive sampling is used to get the most suitable respondents for this study. The findings of this study have revealed there were significant difference at pretest and posttest among respondents in experimental group and control group which were respondents in experimental group increased their level of self-esteem, while there were respondents decreased their level of self-esteem in control group. Counselling sessions utilizing Cognitive Behavioral Play Therapy (CBPT) techniques have increased the level of self-esteem among UNIMAS students in experimental group who attended the group counselling sessions because they have low level of self-esteem. All the dialogues that been stated by the client in the counselling sessions about their self-esteem can be related to respondents’ personality, cognitive, behavior, emotions and actions. The findings of this study have implications towards University students and counsellor. As for the university students, they gained insight, understanding and knowledge the importance of having good level of self-esteem. For the counsellor, counsellor being helpful, trusted and skillful which after utilized the CBPT techniques, they gained new skills and knowledge on that particular therapy.
The correlation cetween children’s song and memorizing vocabulary to young learner as foreign language on kindergarten
Authors: Muttaqiin Miftahul
Published: February 2021

The problems in this research is children’s song related to memorize vocabulary to young learner and how how significance is the correlation between children song and memorizing vocabulary to young learner as foreign language of kindergarten PKK Polagan Pamekasan Madura. This research used quantitative approach, while the kind of research used non-experimental design that is correlation design. Population of this research is all of the students in TK PKK Polagan Pamekasan 2020/2021 that consist of 28 students. The obtained data from questionnaire, test and documentation. The obtained data analyzed by using statistical analysis that used product moment. The result of this study showed that the use of children song related to memorizing vocabulary to young learner as foreign language of kindergarten PKK Polagan Pamekasan. This case has proven from the result of “r” value is 0.711 higher than “r” table in level significance 5% and 1% with N = 28 is 0.374 and 0.478 and it is proven from the interpretation of “r” product moment that the result is between 0,600 – 0,800 in the level of enough correlation. Based on the result above, the researcher concludes that children song can use as strategy in vocabulary learning. This can make the students interest to study and make the students easy to memorize of vocabulary.
Antecedents and Consequences of Muslim Millennials Attitude Towards Halal Personal Care Products
Authors: Mahliza (Universitas Mercu Buana) Febrina , Nugroho (Universitas Mercu Buana) Lucky , Ali (Universiti Sains Malaysia) Anees Jane Ali
Published: February 2021

In Indonesia, the millennial generation is the generation that dominates the population. This is a promising target market for companies or producers of personal care products. This research focuses on the attitudes of the millennial generation towards halal personal care products. The method used is quantitative research with primary data taken from 143 millennial generation female consumer respondents in Jakarta and Tangerang with data collection techniques using purposive sampling. The data analysis used is Partial Least Square (PLS) analysis. Based on the results, the attitude of the millennial generation towards halal personal care products is significantly influenced by religiosity and halal knowledge. At the same time, media exposure has no significant influence on the attitude of the millennial generation towards halal personal care products.
Sharia Board of Islamic Banks and the Attitude of Fatwa Shopping
Authors: Salisu (Universiti Sains Malaysia) Auwal , Saniff (Universiti Sains Malaysia) Shereeza Mohamad , Hassan (Universiti Sains Malaysia) Shahir Akram
Published: February 2021

Fatwa shopping attitude is a process of searching Sharia opinions from different Sharia scholars for suitable and convenient Fatwa to suit the need of bank managers (BMs) even at the minimum level of Sharia compliance. This research was conducted to identify the Sharia Board Members (SBMs) and the new attitude of Fatwa shopping within the supervisory and advisory mandate. The objectives of this study are to identify the mandate of SBMs of IBs and to review the attitude of Fatwa shopping within the advisory and supervisory mandate. Data was collected by way of documentary review method of existing literatures, narrative analysis as well as conceptual approach of analysis. The study gathered that both SBMs and BMs have different objectives when assessing new products which create disagreement of objectives at the strategic level. The study concluded that the leniency in issuing Fatwa ruling might lead SBMs to exercise the attitude of Fatwa shopping or easily compromise toward BMs objectives. A situation of this kind has resulted many challenges toward Sharia complaint, then the products approved by SBMs which have been alleged as non-compliant to Sharia. The findings of this paper can be recommended for regulators, policy makers of Islamic banks and the body of knowledge of researchers for positive use of conceptualizing the current system to suit core component of Islamic Fatwa framework (IFF) in which the attitude of Fatwa shopping would be matter of history in near future.
HUBUNGAN PERTAMBAHAN BERAT BADAN IBU SELAMA HAMIL DENGAN BERAT BADAN BAYI BARU LAHIR DI KLINIK DANDY MABAR KECAMATAN MEDAN DELI TAHUN 2012-2013
Authors: Pardosi Maida
Published: February 2021

Pertambahan berat badan ibu selama hamil sangat penting diperhatikan, sebab jika pertambahan berat badan tidak mencukupi dapat menghambat pertumbuhan bayi. Hasil survei awal di Klinik Dandy terdapat 124 ibu bersalin pada priode 2012-2013, sebanyak 16 ibu melahirkan bayi dengan berat lahir <2500 gram, 97 ibu dengan berat bayi lahir >2500-4000 gram dan 11 ibu bersalin dengan beratlahir >4000 gram. Penelitian bertujuan untuk mengetahui hubungan pertambahan berat badan ibu selama hamil dengan berat badan bayi baru lahir. Penelitian bersifat analitik dengan desain cross sectional retrospektif. Populasi penelitian adalah semua ibu yang memeriksakan diri dan melahirkan di Klinik Dandy tahun 2012-2013 berjumlah 124 orang dan jumlah sampel 124 orang (total sampling). Jenis data yang digunakan adalah data sekunder. Pengolahan data dengan cara statistik analisa univariat dan bivariat (uji chi-square). Hasil penelitian menunjukan ada hubungan pertambahan berat badan ibu selama hamil dengan berat badan bayi baru lahir dan nilai p=0,005  (<0,05). Disarankan kepada petugas kesehatan Klinik Dandy agar memberikan konsling kepada ibu hamil yang memeriksakan diri dan memantau pertambahan berat badan ibu selama hamil.   Kata Kunci:  berat badan, ibu hamil, bayi baru lahir
NANOPARTIKEL PERAK
Authors: Lubis Khairiza
Published: February 2021

Silver nanoparticles have many benefits in human life. Many products that are used in daily life that use ingredients derived from silver nanoparticles. Among such as soap, toothpaste, towels and so forth. This is because the silver nanoparticles have unique properties. In addition to having positive benefits for human life, silver nanoparticles also have a negative impact on human life and other organisms as well, such as silver nanoparticles have a high toxicity against larvae and adult mosquitoes. In synthesizing silver nanoparticles can be carried out chemical and biological. This article discusses: the nature, benefits, synthesis, and effect of silver nanoparticles. Keywords: nanoparticle, silver
Test Antifungal Phatogen Extract Secondary Metabolites Of Endophytic Fungi Raru Plant (Cotylelobium melanoxylon)
Authors: Hasanah Uswatun , Riwayati Riwayati , Idramsa Idramsa
Published: February 2021

This study aims to determine the ability of extracts  secondary metabolites of endophytic fungi raru plant Siarang (Cotylelobium melanoxylon) in inhibiting the growth of pathogenic fungi. Pathogenic fungi tested were Collectotrichum, Fusarium oxysporum, Candida albicans and Sclerotium rolfsii. Test antifungal pathogens carried out by using the method of Kirby-Bour, ie by measuring the clear zone located around the paper disc which is the zone of growth inhibition of pathogenic fungi. Measurement of inhibition zone is done by using a caliper or ruler. The results showed that the secondary metabolites of endophytic fungi extracts could inhibit the growth of pathogenic fungus Candida albicans is the clear zone of 10.23 mm. Keywords : endophytic fungus, Cotylelobium melanoxylon, extract of secondary metabolites, fungal pathogens, inhibition zone
Review Jurnal Hayati Journal of Biosciences
Authors: Harahap Fauziyah
Published: February 2021

Jurnal Hayati Journal of BiosciencesVol. 21 / No. 4
Review Journal of Agricultural Science
Authors: Harahap Fauziyah
Published: February 2021

Journal of Agricultural ScienceVol. 7 /No.4
Study Productivity And Decomposition Litterfall In Sibolangit Forest, Deli Serdang To Support Field Trip Plantation Ecology
Authors: Sinaga Tonggo
Published: February 2021

The research was conducted in mountain rain forest of Sibolangit, Deli Serdang, Northen Sumatera. The objectives of this research are to know litter fall productivity, decomposition and litterfall nutrients. Litterfall is the fallen leaves, twigs, flowers and fruits to forest-floor, which one of the input of nutrients to anorganic sril. This input is one of the nutrients cycling to forest ecosystem and the other form atmosfer and a lot of animals. Based on available data on 20 traps, litterfall productivity 5,91 gr/m2/week or 3073,2 kg/ha/year in high topography. Litterfall productivity 4,92gr/m2/week or 2558,4 kg/ha/year in low topography. Litterfall decomposition (lossed of weight) about 25,48% in 30 days ( 1 month ) for meranti ( Shorea sp ) and leaves of Ficus sp had lossed of weight about 8,09% in 30 days ( 1 month ). Ration C/N (Carbon-Nitrogen) litterfall and soil moisture made differrent litterfall decomposition (lossed of weight)   Keywords : Productivity, Decomposition, Litterfall, Productivity.
Pengaruh Pemberian Pupuk Urin Sapi Terhadap Pertumbuhan dan Produksi Jagung Manis (Zea mays saccharata) Dengan Penggunaan EM4
Authors: Alfarisi Nurcholis , Manurung Toyo
Published: February 2021

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk urin sapi terhadap pertumbuhan dan produksi jagung manis (Zea mays saccharata L) serta konsentrasi yang paling baik terhadap pertumbuhan dan produksi jagung manis (Zea mays saccharata L) penelitian ini dilaksanakan bulan 21 februari – 25 April 2015, di UNIMED,. Metede yang digunakan adalah Rancangan Acak Kelompok (RAK) Non Faktorial dengan 6 perlakuan yaitu: tanpa pupuk urin sapi (S0), pupuk urin sapi 15 cc/l tanaman (S1), pupuk urin sapi 30 cc/l tanaman (S2), pupuk urin sapi 45 cc/l tanaman (S3), pupuk urin sapi 60 cc/l tanaman (S4), pupuk urin sapi 75 cc/l tanaman (S5). Hasil penelitian menunjukkan bahwa pupuk organik urin sapi berpengaruh nyata dapat meningkatkan peertumbuhan dan produksi jagung manis (Zea mays saccharata L). pada konsentrasi 75 cc/l tanaman memberikan pengaruh yang lebih baik terhadap pertumbuhan dan produksi jagung manis.
Diversity Bird in Brackish Marsh Muara Tapus Subdistrict Manduamas District Center of Tapanuli Province North Sumatera
Authors: Zuhalmi Anisa , Prastowo Puji
Published: February 2021

The purposeof this research  is to knowdiversity, abundance, dominance and  distribution pattern of  bird in brackish marsh Muara Tapus Subdistrict Manduamas District Center of Tapanuli. This research was done from February 2015 until April2015. Determination of the station is based on the environmental condition. Total of place observation is 5 places. Every place consist of 4 point with distance 50 m of point accompany. Sampling by concentration point method that is to observe and to take the picture of bird which in every point observation with distance 25 metre for 30 minutes. Time of take sample from 07.00 am – 10.00 am and 04.00 pm – 06.00 pm. The result of this research, found there was 6 orders, 6 family and 8 spesies of birds. Diversity of birds was 0.879, and belonging to the low diversity. The highest abundance of birds was Dendrocygna javanica as many as 110 individual. Average of dominance was 0.512 and belonging to the dominance is moderate. The distribution pattern of birds found in the category of the cluster to 8 species.   Keywords: diversity, bird, brackish marsh
Uji Tanin Pada Jenis Rotan-Rotanan Yang Terdapat Di Hutan Aek-Nauli Parapat Kabupaten Simalungun Sumatera Utara
Authors: Husein Rahmad , Edi Syahmi
Published: February 2021

Penelitian ini bertujuan untuk mengetahui kadar tanin pada rotan di Hutan Penelitian Aek-Nauli Parapat Kabupaten Simalungun  berdasarkan ketinggian tempat yang berbeda. Penelitian dilaksanakan selama 3 bulan terhitung mulai bulan Februari 2016 Sampai April 2016. Populasi penelitian ini adalah keseluruhan  jenis Rotan yang terdapat di hutan penelitian Aek Nauli Parapat Kabupaten Simalungun Sumatera Utara sedangkan sampel dari penelitian ini adalah keseluruhan jenis Rotan  yang  berhasil ditemukan dilokasi penelitian tersebut. Penelitian dilakukan dengan survey eksplorasi yang didasarkan pada perbedaan ketinggian (1200 mdpl, 1400 mdpl, dan 1600 mdpl). Hasil penelitian didapatkan 3 jenis Rotan  yang terdiri dari Calamus rotang, Plectocomia elongata, Calamus caesius. Uji kadar tanin yang dilakukan pada sampel menunjukkan hasil positif (ada) 1 jenis rotan, yaitu Plectocomia elongate dan Calamus caesius, Calamus rotang tidak positif (tidak ada) menghasilkan senyawa tanin. Melalui pengukuran faktor fisika-kimia diperoleh kelembaban tanah rata-rata sebesar 4,9 %, pH tanah berkisar antara 6,5-6,8, suhu tanah 270 C-280 C, kelembaban udara rata-rata 91%, suhu udara minimum 230C, suhu udara maksimum 240 C, intensitas cahaya matahari 46,85 Candela. Kata Kunci : Metabolit Sekunder, Obat, Tanin
Pemeriksaan Residu Pestisida Pada Tomat (Solanum lycopersicum L.) Di Pasar Tradisional Kota Medan
Authors: Pohan Selvia Dewi
Published: February 2021

Penelitian tentang pemeriksaan residu pestisida pada tomat (Solanum lycopersicum) di pasar tradisional kota Medan dilakukan dengan tujuan untuk mengetahui jenis-jenis residu pestisida yang terdapat pada tomat dan mengetahui kadar residu pestisida yang terkandung di dalamnya. Penelitian dilakukan dari bulan oktober sampai dengan desember 2015 di Laboratorium Kimia FMIPA Unimed dan Laboratorium PPKS Sumatera Utara. Penelitian ini menggunakan metode observasi, dimana diidentifikasi jenis-jenis residu pestisida yang terdapat pada tomat yang diambil secara acak dari beberapa pasar tradisional di Kota Medan. Pemeriksaan kandungan bahan organik sampel menggunakan alat spectroskopi infrared (SP-IR) dan kemudian kadar residu pestisida sampel dengan kromatografi gas (GC-MS). Hasil penelitian menunjukkan bahwa terdapat 2 jenis residu pestisida pada sampel yang diuji, yaitu klorpirifos dan metidation. Dari hasil pemeriksaan kadar residu pestisida sampel tomat dengan alat kromatografi gas (GC-MS), diketahui bahwa sampel tomat mengandung residu klorpirifos < 0,0085 mg/kg. Hal ini berarti sampel tomat yang diuji mengandung residu pestisida klorpirifos di bawah batas minimum residu (BMR) yang telah ditetapkan Badan Standardisasi Nasional (SNI 7313: 2008) yaitu sebesar 0,5 mg/kg.   Kata kunci: identifikasi, jenis, kadar, residu pestisida, tomat, klorpirifos, metidation
Kajian Ekologi Tumbuhan Liana di Hutan Primer Taman Nasional Gunung Leuser Resort Sei Betung Kecamatan Besitang Kabupaten Langkat, Sumatera Utara
Authors: Wati Nira , Manurung Binari
Published: February 2021

Liana adalah salah satu jenis tumbuhan yang menjadi penciri khas dari ekosistem hutan hujan tropis dan keberadaannya menambah keanekaragaman jenis tumbuhan pada ekosistem hutan tersebut. Tujuan penelitian ini adalah mengetahui keanekaragaman liana, indeks kemerataan, indeks kekayaan, indeks dominansi, Indeks Nilai Penting (INP%), dan indeks kesamaan liana antar transek di hutan primer resort sei betung Taman Nasional Gunung Leuser (TNGL). Penelitian ini dilakukan pada bulan Oktober 2015 hingga Maret 2016. Metode yang digunakan adalah metode kuadrat dengan pengambilan sampel dilakukan pada satu stasiun terdiri dari 4 transek dan 40 plot pengamatan dengan ukuran setiap petak contoh 20 m x 20 m. Pengambilan sampel liana menggunakan intensitas sampling 0,6% dari 3000 Ha. Variabel yang diamati meliputi jenis dan jumlah individu liana serta keliling setiap individu liana. Hasil penelitian ditemukan 32 jenis liana dengan 677 jumlah total individu liana. Keanekaragaman liana sebesar 3,037 dengan kategori keanekaragaman tinggi, kemerataan liana termasuk kategori tinggi dengan nilai sebesar 0,876, kekayaan liana sebesar 4,756 termasuk kedalam kategori sedang, indeks dominansi liana termasuk kategori sedang dengan nilai 0,109, Indeks Nilai Penting liana tertinggi yaitu Uncaria glabra (Rubiaceae) dan Tetrasigma hookeri (Vitaceae) dan tipe vegetasi liana dihutan primer resort sei betung Taman nasional Gunung Lesuser (TNGL) yaitu Rubiaceae-Vitaceae serta indeks kesamaan liana antar transek memiliki nilai lebih dari 50% sehingga berdasarkan aturan 50% dari Kendeigh (1980) maka liana-liana yang terdapat pada transek-transek yang diamati yang berada dalam hutan Primer Taman Nasional Gunung Leuser masih tetap termasuk dalam satu komunitas/vegetasi yang sama yaitu Rubiaceae-Vitaceae. Kata Kunci : Tumbuhan Liana, Keanekaragaman, Ekosistem
Analisis Substrat dan Indeks Keanekaragaman Makrozoobentos di Aliran Sungai Babura Kota Medan
Authors: Berutu Eta Rinayanta , Sinambela Masdiana
Published: February 2021

Penelitian ini bertujuan untuk mengetahui karakteristik substrat dasar dan indeks keanekaragaman makrozoobentos di aliran sungai Babura kota Medan. Teknik pengumpulan data adalah teknik sampling karena data diperoleh dari hasil pengamatan langsung. Penelitian ini dilakukan bulan Januari 2016, dengan pengambilan sampel pada lima stasiun. Sampel makrozoobentos diambil dengan menggunakan Eckman grab sebanyak lima kali. Makrozoobentos yang ditemukan sebanyak 8 genus yaitu: Pleurocera sp, Anentome sp, Thiara sp, Brotia sp, Melanoides sp, Baetis sp, Haemopis sp, dan Tubifex sp. Indeks keanekaragaman (H’) di sungai Babura tergolong rendah. Hal ini disebabkan oleh tingginya pencemaran yang terjadi di daerah aliran sungai Babura. Karakteristik substrat perairan sungai Babura berupa liat berdebu, lempung berdebu dan lempung berpasir. Dari hasil penelitian didapat bahwa pada stasiun I memiliki keanekaragaman makrozoobentos lebih tinggi dibandingkan stasiun lainnya   Kata kunci: Substrat, indeks keanekaragaman, makrozoobentos, Sungai Babura.
ANALISIS PAKAN ORANGUTAN (Pongo abelii) DI TAMAN NASIONAL GUNUNG LEUSER RESORT SEI BETUNG SUMATERA UTARA
Authors: Zulfahri M. Rindi , Pohan Selvia Dewi
Published: February 2021

Orangutan (Pongo abelii) merupakan satwa endemik yang keberadaannya di Pulau Sumatera dan Kalimantan, termasuk kategori spesies terancam punah (Critically Endangered) menurut IUCN. Ketersediaan pakan di hutan memiliki peran penting dalam pengelolaan populasi orangutan agar terhindar dari kepunahan. Pada umumnya orangutan dewasa jantan dan betina yang hidup di alam dengan bobot badan 55 kg membutuhkan energi sebesar 1.414 kalori. Penelitian ini bertujuan untuk mengetahui kandungan nutrisi dari pakan alami orangutan di Taman Nasional Gunung Leuser Resort Sei Betung, Besitang. Sampel yang digunakan dalam penelitian terdiri 5 jenis tumbuhan pakan orangutan yaitu Artocarpus dadah, Callerya artopurpurea, Endospermum diadenum, Ficus glomerata, dan Polyalthia sumatrana. Selanjutnya dianalisis dengan metode analisis proksimat yaitu penentuan jumlah zat pakan yang terkandung dalam suatu sampel seperti kadar karbohidrat, lemak, protein, air, tanin, dan mineral berupa Ca, K, Fe dan Zn. Hasil penelitian menunjukkan bahwa buah Ficus glomerata sudah mencukupi kebutuhan nilai kalori pada orangutan dewasa, remaja, dan anak-anak dengan jumlah kalori sebesar 2.058,4 kalori sedangkan daun Polyalthia sumatrana dan kulit kayu Ficus glomerata sudah mencukupi kebutuhan nilai kalori pada orangutan yang berumur 2-4 tahun (kategori bayi hingga anak-anak) dengan memiliki nilai kalori secara berturut-turut yaitu 1.337,4 dan 1.220 kalori dan daun Endospermum diademum sudah mencukupi kebutuhan nilai kalori pada orangutan yang berumur 2 tahun (kategori bayi) dengan nilai kalori sebesar 1.081,8 kalori. Kata kunci : Pakan, Orangutan, Nutrisi, TNGL.
PENGURANGAN AKUMULASI TIMBAL (Pb) DENGAN MEMANFAATKAN MIKORIZA ARBUSKULA DAN TANAMAN BELIMBING WULUH (Averrhoa bilimbi) JABON (Anthocephalus cadamba) PETAI (Parkia speciosa)
Authors: Sianipar Herna , Munir Erman , Delvian Delvian
Published: February 2021

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian fungi mikoriza arbuskula (fma)terhadap akumulasi logam Pb tanaman belimbing wuluh, jabon, dan petai, mengetahui dosis pemberian fungi mikoriza arbuskula (fma) yang optimalterhadap akumulasi logam Pb, mengetahui jenis tanaman yang paling efektif dalam akumulasi logam Pb. Penelitian ini dilakukan di di Rumah Kasa, Laboratorium Biologi Tanah dan Laboratorium Sentral Fakultas Pertanian Universitas Sumatera Utara. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) faktorial dengan dua faktor. Faktor pertama adalah inokulasi mikoriza dengan 4 taraf dosis (0 g/bibit, 10  g/bibit, 20 g/bibit, 30 g/bibit) dan faktor kedua adalah tanaman yang terdiri dari tiga jenis tanaman yaitu belimbing wuluh, jabon, dan petai. Hasil penelitian menunjukkan fungi mikoriza arbuskula memberikan  pengaruh terhadap akumulasi logam Pb pada semua tanaman. Dosis mikoriza 10 g optimalterhadap akumulasi logam Pb pada tanaman uji, tanaman jabon yang paling efektif dalam menyerap logam Pb. Rasio akumulasi logam Pb pada bagian akar tanaman  paling tinggi pada tanaman belimbing wuluh yaitu 52,38 mg/kg, rasio akumulasi logam Pb pada bagian batang  tanaman  paling tinggi pada tanaman jabon yaitu 32,7 mg/kg, rasio akumulasi logam Pb pada bagian daun tanaman  paling tinggi pada tanaman jabon yaitu 16,49 mg/kg. Efisiensi penyerapan Pb tanaman  paling tinggi pada tanaman jabon yaitu 13,06 % dan terendah pada belimbing wuluh  yaitu 8,6 % Kata Kunci : Fungi Mikoriza Arbuskula, Logam Berat Pb, Belimbing Wuluh, Jabon , Petai.
KORELASI PAPARAN BENZENA MELALUI PENGUKURAN KADAR TRANS-TRANS MUCONIC ACID (ttMA) DENGAN KADAR ENZIM TRANSAMINASE DAN TOTAL PROTEIN PADA PEKERJA SPBU PERTAMINA KOTA MEDAN
Authors: Musthari Musthari , Megawati Eka Roina , Eyanoer Putri
Published: February 2021

Sejak ditemukan bukti gangguan kesehatan akibat paparan benzena, maka benzena merupakan salah satu bahan kimia yang paling berbahaya bagi kesehatan manusia. Perkembangan industri migas di Indonesia tidak lepas keterkaitannya dari penggunaan beraneka ragam bahan kimia. Bensin merupakan salah satu produk migas yang mengandung senyawa benzena (C6H6) yang berfungsi untuk meningkatkan nilai oktan. Dampak paparan benzena secara akut berupa gangguan pada sistem saraf, kurangnya suplai oksigen ke otak, kebingungan, denyut jantung cepat, sakit kepala, tremor, dan pingsan. Paparan benzena secara kronis menyebabkan penurunan produksi sel-sel darah di sumsum tulang. Paparan benzena dapat menyebabkan kerusakan hati karena hati merupakan organ utama untuk biotransformasi berbagai zat kimia yang masuk ke dalam tubuh dan juga merupakan organ utama dalam metabolism toksin dan obat. trans, trans-Muconic Acid (t,t-MA) merupakan metabolit benzena yang dapat digunakan sebagai indikator yang lebih sensitif dan spesifik untuk biomonitoring biologi, terutama untuk paparan benzena dengan konsentrasi rendah. Penelitian ini bertujuan untuk melihat korelasi paparan benzena melalui pengukuran kadar t,t-MA dengan kadar enzim transaminase dan total protein pada pekerja SPBU Pertamina kota Medan. Penelitian ini merupakan suatu penelitian deskriptif analitik dengan desain cross sectional study. Subjek penelitian ini adalah karyawan Stasiun Pengisian Bahan Bakar Umum (SPBU) PT. Pertamina Medan (n = 43) dengan masa kerja ≥ 6 bulan. Hasil penelitian menunjukkan bahwa 9 dari 43 subjek memiliki kadar t,t-MA lebih dari 500 µg/g creatinin. Korelasi kadar t,t-MA dengan kadar enzim ALT, AST dan Total Protein tidak signifikan (p>0,05), berkorelasi negatif dengan semua parameter yaitu ALT (r = -0,030), AST (r = -0,046), Total Protein  (r = -0,147). Perbedaan rata-rata kadar  t,t-MA pada masa kerja ≤ 1 tahun dan masa kerja > 1 tahun tidak signifikan p = 0,054. Perbedaan rata-rata kadar t,t-MA pada subjek yang merokok dan tidak merokok tidak signifikan p = 0,559.   Kata Kunci : Benzena ,trans,trans-Muconic Acid, (t,t-MA) ALT, AST, Total Protein
IDENTIFIKASI EKTOPARASIT PADA IKAN KOI (Cyprinus caprio)
Authors: Priawan Indra , Gultom Endang Sulistyarini , Pulungan Ahmad Shafwan S.
Published: February 2021

Penelitian ini bertujuan untuk mengetahui ektoparasit yang terdapat pada ikan koi yang dijual di Jalan Bintang Medan. Ektoprarasit diketahui dapat menyebabkan penyakit pada ikan. Hal ini akan berdampak pada ikan lainnya. Kerusakan yang diakibatkan oleh ektoparasit ini akan meningkatkan intensitas penyakit pada ikan. Luka yang ditimbulkan oleh adanya ektoparasit pada ikan menjadi jalan masuk bagi kuman lain untuk menyerang ikan. Sampel yang digunakan ialah tiga ekor ikan koi yang mana ektoparasit yang menginfeksi ikan di amati lendir pada tubuh dan sirip ikan mas koki. Identifikasi ektoparasit dilakukan dengan menggunakan literatur. Ektoparasit yang teridentifikasi ialah Ichthyophthirius sp., Oodinium sp., Costia Sp. Dengan jumlah parasit terbanyak ialah spesies Oodinium sp.Kata Kunci : Ektoparasit, ikan koi, identifikasi.
EFFECT OF VARIOUS SUBSTRATES IN NON-CIRCULATING HYDROPONIC SYSTEMS AND SOIL MEDIA ON THE GROWTH OF Gynura procumbens
Authors: Faizah Hanik , Fawaidah Ikhlasotul , Millah Najmatul , Fadhillah Ninik , Ma’arif Muh.
Published: February 2021

The limitations of conventional soil cultivation in producing medicinal plants emerge an interest in searching various alternative cultivation systems, one of which is the hydroponic system. This study aimed to investigate the effect of various substrates in non-circulating hydroponic systems and soil media on the growth of Gynura procumbens. Non-circulating hydroponic cultivation of Gynura procumbens was carried out using stem cuttings. The stem cuttings were transferred to each net pot containing substrates such as rockwool, tree ferns fiber, and sawdust. The net pots were then placed in a tray comprising AB mix 6 ml/L of water. The lower 2-cm-portion of the net pots was immersed in a nutrient solution. Whereas in the conventional soil cultivation, the stem cuttings were transferred to the polybags containing soil media: compost (1: 1). After 28 days of cultivation, the plant growths were measured. The results showed that the use of various substrates in non-circulating hydroponics increased plant growth compared to conventional soil cultivation. Rockwool treatment obtained the highest number of leaves (14,833 ± 5,269 strands), number of roots (20,333 ± 6,121 stands), fresh weight (1.34 ± 0.511 g) and dry weight (0.088 ± 0.031 g).
Inzulinpumpa-kezelést igénylő, kedvezőtlen anyagcsere-állapotú 1-es típusú diabeteses betegek autonóm idegrendszeri funkciójának jellemzői
Authors: Magony Sándor , Nyiraty Szabolcs , Fehértemplomi Katalin , Tóth Bettina , Pesei Fruzsina , Orosz Andrea , Lengyel Csaba , Kempler Péter , Várkonyi Tamás
Published: February 2021

Bevezetés: A szénhidrát-anyagcsere súlyos instabilitása csökken inzulinpumpa bevezetése után 1-es típusú diabetesben. A glükózanyagcsere zavara autonóm neuropathiát okozhat, azonban az autonóm károsodás is felelős lehet az anyagcsere romlásáért. Felmerül a kérdés, hogy milyen mértékű az autonóm idegrendszer érintettsége a pumpakezelés indikációjának megfelelő rossz anyagcsere mellett, továbbá a neuropathia javulása akár rövid időn belül bekövetkezik-e a pumpakezelés megkezdése után. Célkitűzés: Vizsgálataink célja a kardiovaszkuláris autonóm funkció jellemzése volt pumpakezelés megkezdésekor, majd a kezelés bevezetése után 2 hónappal. Betegek, módszerek: Vizsgálatainkba 1-es típusú diabeteses beteget vontunk be (38 beteg, 23 nő, 15 férfi, életkor: 29,5±1,3 év, betegségtartam: 13,8±1,5 év; BMI: 23,2±0,6; átlag±SE). A kontrollcsoportba 10 nem diabeteses személy került (életkor: 27,8±2 év). Az autonóm neuropathia (AN) vizsgálatát az inzulinpumpa felhelyezése előtt és azt követően 2 hónappal kardiovaszkuláris reflextesztek (CRT) segítségével végeztük el. Eredmények: A betegcsoportban a legérzékenyebb paraszimpatikus teszt, a belégzésre bekövetkező szívfrekvencia-változás az egészséges kontrollhoz képest szignifikánsan kórosnak bizonyult a kezelés kezdetén (belégzés: 32,6±3,8 vs. 18,6±1,5 ütés/min., p<0,001). A paraszimpatikus károsodás mértéke annál kifejezettebb volt, minél hosszabb volt a bólus-bázis inzulinkezelés időtartama az inzulinpumpa felhelyezése előtt a betegekben (AN score–tartam: r=0,51, p<0,05; belégzés–tartam: r=−0,63, p<0,001). A két hónapos pumpakezelés mellett az AN összesített súlyossága csökkent (AN score: 2,2±0,2 vs. 1,5±0,2, p<0,05), a belégzésre bekövetkező szívfrekvencia-változás pedig szignifikánsan javult (belégzés: 18,6±2,1 vs. 22,4±2 ütés/min., p<0,05). Az átlagos HbA1c a két hónapos kezelés alatt 0,7%-ot csökkent (8,7±0,2% vs. 8,0±0,3%, p=0,125). Következtetés: A pumpakezelés megkezdésekor a fiatal 1-es típusú diabeteses betegekben a paraszimpatikus idegrendszeri diszfunkció dominált, ami már két hónapos pumpakezelés mellett javulást mutatott. Az idegrendszeri érintettség súlyossága szoros összefüggést mutatott a pumpakezelést megelőző bólus-bázis inzulinkezelés időtartamával. Adataink 1-es típusú diabetes mellitusban megerősítik azt a megfigyelést, hogy kóros szénhidrát-anyagcsere esetén a paraszimpatikus idegrendszer károsodik elsőként, ami eredményeink szerint a pumpakezelés elkezdését követően már rövid időn belül is javulhat.
PENERAPAN SMS GATEWAY PADA SISTEM INFORMASI BOOKING SERVICE MOTOR DI CM JAYA MOTOR KUDUS
Authors: Ulya Zulfa Himmatul , Latifah Noor , Supriyono Supriyono
Published: February 2021

CM Jaya Motor adalah penyedia jasa perawatan sepeda motor honda. Sistem informasi booking service motor pada CM Jaya motor dirancang dan dibangun untuk tujuan mempermudah pelanggan dalam melakukan pemesanan service motor dengan tidak membuang banyak waktu. Penerapan SMS Gateway pada system informasi booking service motor membantu memberikan informasi mengenai waktu service motor serta pelanggan akan mendapatkan notifikasi jadwal service berkala. Metode Pengembangan system menggunakan waterfall yang dimulai dari requirement, Desain, Implementation, Integration dan testing, serta operation dan maintenance. Hasil dari penelitian ini yaitu suatu system informasi booking service motor dengan menerapkan SMS Gateway.
Potensi Tanaman Sorgum (Sorghum bicolor L.), Azotobacter sp. dan Pseudomonas sp. Sebagai agen biologis dalam proses Fitoremediasi Hidrokarbon minyak bumi
Authors: Suryatmana Pujawati , Shabrina Alyani , Kamaluddin Nadia Nuraniya , Fitriatin Betty Natalie , Hindersah Reginawanti , Setiawati Mieke Rochimi
Published: February 2021

Phytoremediation using Sorghum (Sorghum bicolor L.) plant is an alternative green technology to overcome oil polluted soil. Improving of the phytoremediation performance are needed stimulating agent to enhance the rate of hydrocarbon biodegradation and increase the plant growth. One of the bioagent that can act as biostimulant is Azotobacter sp. and Pseudomonas sp., because thouse bioagent can provide elements N and P, and phytohormone for sorghum plants. The purpose of this study is to examine the role of Azotobacter sp. and Pseudomonas sp. as a biostimulant for Sorghum bicolor L. in the process of biodegradation of petroleum hydrocarbon in soil system. The factorial randomized block design was used as the experimental design. The treatment consisted of 4 application levels of Azotobacter sp. and 4 levels of application of Pseudomonas sp. The results showed that there was no interaction between Azotobacter sp. and Pseudomonas sp. aplication on the efficiency of hydrocarbon degradation of the population of Azotobacrer spp., Pseudomonas spp. and plant height increase. Azotobacter sp. and Pseudomonas sp. also did not show an increase in value on each test variable. While, the potential of sorghum plants without the application of Azotobacter sp. and Pseudomonas sp. (control treatment) showed the value of the efficiency of biodegradation in the range of values of 60.442% - 68.165% during 14 weeks period and not significantly different from other treatments.
Presentación del dossier “Derecho, Ciudad y Propiedad”
Authors: Vértiz Francisco
Published: February 2021

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