bluuebunny/crossref_metadata_2025 huggingface dataset:
PHYTOESTROGEN IN SEVERAL FRUITS AND LEAVES
Authors: Putra L. Maha , Putra Hening Laswati
Published: October 2018

Phytoestrogen is molecularly almost similar with and acts the same as estrogen and is found a lot in several fruits and leaves grown either in tropical or subtropical countries. However, the quantity of molecular contents are not yet known exactly. In menopause and andropause, people need substitution of estrogens as a replacement therapy of sex hormone, due to the significant hormone decline and impacted disturbance of several organ functions and thus progressively causing severe organ dysfunctions. The objective of this study was to know the estrogen content by analyzing extractions of pegaga, green clover leaves, tomato and papaya fruit of which certain communites have overviewed contents of the leaves and fruit The samples which were collected for this purpose used 10 times replication in four different groups: the pegaga, green clover leaves, tomato and papaya fruit. All these groups were divided into two (2) subgroups based on the process or subspecies. All samples were made as an infusion 1:4) w/v), and then extracted after centrifugation 1000xg for 15mnts, with 1:5 petroleum ether) v/v). After it was evaporated, each extraction then was kept dry-frozen at –20° C until the analysiswas performed. Solid phase Radioimmunoassay technique was used to identify the estrogen contents, up to a total of 80 samples The binding percentage of each sample was then interpolated on a logit-log paper to find out the real concentrations.14 The lowest estrogen level was found in fresh pegaga leaves extract (Mean+SD) was 47.9+5.5 pg/g, but in dry leaves extract the level was increased twice, about 96.1+11.2 pg/g. Meanwhile the estrogen level in fresh green clover leaves extract was 538.0+30.5 pg/g, more than ten times higher compared to fresh pegaga level, but twice lower than the estrogen level compared to dry green clover leaves extract, which was 1068.0+97.2 pg/g. In the fruit group, the fibrin part of tomatoes had more or less the same estrogen content compared with Thai papaya subspecies, 1037.0+37.7 pg/g and 1175.0+67.7 pg/g, respectively. On the other hand, it was noted that the inner part/fibrin part of tomato had a higher estrogen level of four (4) times compared to the outer part which was 315.0+18.4 pg/g. While it was noted that local Java papaya besides being not so sweet, the estrogen level was also not as high or the same as that found in fresh green clover which is 530.1+50.7 pg/g and 538.0+30.5 pg/g. Based on this study so far, it can be concluded that semanggi/green clover, tomato and papaya could be suggested as a replacement therapy for certain people who are considered to have reduced estrogen content, except that pegaga leaves are not recommended. The last mentioned plant besides that it is difficult to obtain, its estrogen content is also very low.
PHYLLANTHUS NIRURI L TERHADAP IMUNITAS SELULER TIKUS
Authors: L Ima Arum , AP Purwanto , Rya Henna
Published: October 2018

Typhoid fever is a problem in the developing country. Phyllanthus niruri L (meniran) is a traditional plant that can be used as an immunomodulator on cellular or humeral immunity. By giving Phyllanthus niruri L extract to patient who suffers typhoid fever can increase cellular immunity responses in intracellular bacteria infection (S.typhimurium).This research was an experimental study using the post test-only control group design to proof of the effects of Phyllanthus niruri L on cellular immunity balb/c infected by salmonella typhimurium. The samples were taken from thirty male Balb/c mice which were divided into five groups including P1 (infected by S.typhimurium and PnL extract 125 g), P2 (infected by S.typhimurium and PnL extract 250 g), P3 (infected by S.typhimurium and PnL extract 500 g), K1 (infected by S.typhimurium) and K2 (healthy mice). In this study was applied parametric test of one way ANOVA and post hoc test Bonfferoni. It was known that phyllanthus niruri L increased the number of activated lymphocytes and phagocyte ability of macrophage (p=0.003 and p=0.001, respectively). By Bonfferoni post hoc test resulted that no significantly difference between the treated groups (increased of dose). There were no significant difference between the number of leukocyte, the difference count of lymphocyte and the nitrite oxide produced among the treatment groups and controls. Phyllanthus niruri L dose 250 Î¼g increased the activated lymphocyte and index phagocytes. To find out the effects of Phyllanthus niruri L compare to antibiotic and Phyllanthus niruri L combination, continuing/advancing studies are needed
INFEKSI HUMAN IMMUNODEFICIENCY VIRUS (HIV) PADA BAYI DAN ANAK
Authors: Johanis Johanis , Retnowati Endang
Published: October 2018

HIV is an obligate intracellular RNA virus which fully replicates in the host cells notably express CD4+ receptor, such as CD4+ Tlymphocytes, astrocytes, microglias, monocyte-macrophages, Langerhans cells, dendritic cells. There are two types of HIV: HIV-1 and HIV-2. HIV-2 is less pathogenic and less contribution in children. In the developing countries the total number children with HIV increased higher than in the developed countries. HIV infection in children is more common in children who have HIV infected mothers, they are mostly transmitted during the laboring process. Breast milk from HIV infected mothers is a potential transmission media, there fore HIV infected mothers is not admitted giving breast milk to their babies. The risk factors of mother-child transmissions of HIV infection are: virus, maternal, obstetric, fetal and baby. Maternal HIV antibodies in child's circulation cause the diagnosis of HIV in children difficult. There fore an accurate and fast diagnosis is needed to decrease the disease progressivity in children as well as by proper antiretroviral treatment. There are suggestion reference for diagnosis tests for HIV infection in babies and children <18 months by virology test using HIV-DNA PCR and HIV-RNA PCR. The diagnosis test for children â‰¥18 is HIV antibody test the same such as in adult. In HIV infected babies and children is used CD4+ T-lymphocytes percentage to monitor the disease progressivity.
ASOSIASI HLA-DRB1* DAN HLA-DQB1* DENGAN IGM-RF SERUM PADA ARTRITIS REUMATOID
Authors: Soeroso Joewono , Judajana Ferdinandus Maria , Kalim Handono
Published: October 2018

Rheumatoid arthritis (RA) is a chronic progressive polygenic autoimmune disease with a high socio-economic burden. Genetic polymorphisms expressed as a shared epitope (SE) at hypervariable regions of HLA-DRB1*01/*04/*10/*14 and linkage disequilibriums of HLA-DRB1*-HLA-DQB1* with some microorganisms, increase the risk of RA. Shared epitopes are also related with the increase of serum IgM-RF as well. A cross-sectional study on 48 RA patients diagnosed by ACR Criteria 1987 from 6 hospitals in Java and Bali was done to determine the associations of HLA-DRB1* and HLA-DQB1* alleles with serum IgM-RF levels. The presence of HLA-DRB1* and HLA-DQB1* alleles were assessed through PCR-SSO. Serum IgM-RF levels (IU/mL) were assessed through ELISA. Man-Whitney U tests were used to measure the associations. Value of p<0.05 is considered to be statistically significant. The results showed that mean ranks IgM-RF levels of subjects who are bearing HLA-DRB1*04 compared to subjects who are not bearing HLA-DRB1*04 were 34.10 IU/ml (n=10) vs 21.97 IU/ml (n=38), p=0.014. While, the mean ranks of IgM-RF levels of subjects who are bearing haplotype combination of HLA-DRB1*04-HLA-DQB1*03 vs subjects who are not bearing haplotype combination of HLA-DRB1*04- HLA-DQB1*03 were 32.89 IU/mL (n=9) vs 22.56 IU/mL (n=39) (p=0.046). It is concluded that there are association of HLA-DRB1*04, and haplotype combination of HLA-DRB1*04-HLA-DQB1*03 with increased levels of IgM-RF among Indonesians with RA.
Subcutaneous ureteral bypass for treatment of bilateral ureteral obstruction in a cat with retroperitoneal paraganglioma
Authors: Borchert Corie , Berent Allyson , Weisse Chick
Published: October 2018

CASE DESCRIPTION A 7-year-old female domestic shorthair cat was referred for evaluation of azotemia and unilateral hydronephrosis.

CLINICAL FINDINGS Abdominal ultrasonography revealed right-sided hydronephrosis and dilation of the proximal aspect of the ureter; the left kidney was small with irregular margins. A highly vascular, irregular retroperitoneal mass, not clearly associated with the ureteral obstruction, was also visualized. Surgical exploration confirmed a retroperitoneal mass involving the caudal mesenteric artery and both ureters, with hydroureter on the right side.

TREATMENT AND OUTCOME A subcutaneous ureteral bypass (SUB) device was surgically implanted to treat right ureteral obstruction, and the mass was biopsied. Shortly after surgery, progressive azotemia and hyperkalemia were detected; ultrasonographic examination revealed left-sided hydronephrosis and hydroureter, which was suspected secondary to inflammation of the mass causing a left-sided ureteral obstruction. A second surgery was performed to place an SUB device for the left kidney and remove the retroperitoneal mass; both ureters were ligated at the mid- and distal aspects and then transected and removed with the mass. A neuroendocrine paraganglioma was identified by histopathologic evaluation of the mass. Hydronephrosis improved (right kidney) or resolved (left kidney) after surgery, and azotemia improved. Chemotherapeutic intervention was declined. Markers of renal function were static during the 14-month follow-up period. At the last follow-up evaluation, the patient was reportedly doing well, and both SUB devices were patent.

CLINICAL RELEVANCE This was the first report of retroperitoneal paraganglioma in a domestic cat causing bilateral ureteral obstruction. Bilateral SUB device placement enabled en bloc mass resection and provided long-term relief of ureteral obstruction.
Progressive peer evaluation: Important but absent in EFL speaking classes
Authors: Usman Bustami , Muslim Asnawi , Champion Ibrahim C.R. , Samad Iskandar Abdul
Published: October 2018

Comprehensive teaching-learning about speaking evaluation, especially peer evaluation, is conspicuous by its absence in English Foreign Language (EFL) Speaking classes at all secondary and tertiary levels in Indonesia, especially in Aceh, This comparative research study looks at the various aspects used for evaluation and especially looks at peer evaluation in EFL speaking classes in Aceh. The paper describes twenty three (23) components recommended for evaluation of speaking communications: the seen, the spoken and the script (content) components. The results showed that teachers of EFL speaking are not using and are not even taught such detailed evaluation systems. Moreover the syllabi for speaking English at upper secondary level are severely lacking as are those used in tertiary courses. Educators need to learn from the Toastmasters International systems for evaluation and for making evaluation speeches, in particular the need to prioritise praise in evaluation with only a pointer or two on how to improve the next speech. This paper includes a simplified format for peer evaluations that students can easily be taught to use and also stresses the need for praise, not punishment, for successful evaluation. Teachers of Speaking English EFL, who practice the recommendations from this paper, should get much better results from their students.
Oral corrective feedback: Exploring the relationship between teacher’s strategy and students’ willingness to communicate
Authors: Sa'adah Lailatus , Nurkamto Joko , Suparno Suparno
Published: October 2018

This study seeks to investigate the types of oral corrective feedback implemented in class and its effect on students’ willingness to communicate. As many as 35 senior high school students as well as the teacher were involved in the observation stage of this study and shared their perspectives about the relationship between teacher’s feedbacks on the students’ willingness to communicate through interview. The findings show that there are three types of oral corrective feedback given in the class, i.e. explicit correction, metalinguistic, and clarification request feedback. The students insist that the teacher’s oral corrective feedback does not make them reluctant to communicate to their peers or teacher in the class. Therefore, it can be concluded that teacher’s oral corrective feedback strategy does not disturb the interaction between the teacher and students in the class. It can be inferred that oral corrective feedback is necessary to be implemented in the class because it assists their second language learning.
Boosting students’ speaking ability through Community Language Learning
Authors: Halimah Halimah
Published: October 2018

This study was done to find out the effect of using the Community Language Learning (CLL) Method for teaching-learning speaking English with second semester students in the English Education Study Program at a private university in West Java in an effort to improve the English speaking skills of the students. This study used an action research method where the researcher was accompanied by an observer as a collaborator. Three cycles were done for this study. Data were gathered from observations, a questionnaire, interviews and tests. In the preliminary study, the mean score of the student’s speaking was 61. The percentage of students who passed the minimum criterion of 70 was 22% with only 6 out of 27 students passing the minimum score. The mean score from post-test 1 was 63 and only 7 students or 26% passed the minimum score. The mean score from post-test 2 was 76 and 89%, i.e. 24 students passed the minimum score. While from post-test 3 the mean score was 84 and all of the students (100%) passed the minimum score. Hence the results showed that the use of the CLL method was a success. The students enjoyed their lessons more, and were more motivated, interested and confident during the teaching-learning sessions.
ЭКСПЕРИМЕНТАЛЬНОЕ ЗАДЕРНЕНИЕ МНОГОЛЕТНИМИ ТРАВАМИ ГРУНТА ТЕХНОГЕННОГО ИЗ ТВЕРДЫХ БЫТОВЫХ/КОММУНАЛЬНЫХ ОТХОДОВ ИСПОЛЬЗУЕМОГО ПРИ РЕКУЛЬТИВАЦИИ ПОЛИГОНОВ В КАЧЕСТВЕ ПЛОДОРОДНОГО ГРУНТА
Authors: Малюхин Д.М. , Поздняков В.А. , Бакина Л.Г. , Нагиев Т.Б. , Поздняков А.В. , Лоскутов С.И. , Пухальский Я.В.
Published: October 2018

В условиях полевого опыта на полигоне твердых бытовых отходов изучена пригодность грунта техногенного, полученного аэробным компостированием отсевов грохочения твердых коммунальных отходов при их сортировке, для использования при рекультивации полигона в качестве плодородного грунта. Изучены агрохимические показатели грунта техногенного и его температурный режим в пределах корнеобитаемого слоя. Проведены исследования по подбору ассортимента трав, наиболее эффективных для задернения исследуемого субстрата. Выявлены существенные различия по эксплуатационным характеристикам у однолетних и многолетних злаковых трав. Особенно перспективны овсяница красная сорт Шилис и овсяница луговая сорт Шведская, которые сформировали плотный травостой, выделяющийся красивой зеленой окраской вплоть до наступления зимних холодов. Установлено, что в травах, выросших на грунте техногенном, содержание тяжелых металлов и нитратов не превышает нормативы для кормовых трав.
Ideologias e percepções de qualidade em educação superior: da dicotomia entre o social e o econômico ao ‘caminho do meio’
Authors: Bertolin Julio Cesar Godoy
Published: October 2018

Este artigo investiga as relações entre as visões de mundo e ideologias das pessoas e dos grupos de interesses com suas respectivas concepções e percepções de educação superior. Por meio de revisões da literatura e análises documentais busco, primeiramente, demonstrar as raízes ideológicas de duas concepções atuais de educação superior: como ‘bem público’ e como ‘serviço comercial’. Na sequência, argumento que tais concepções consubstanciam duas principais visões de qualidade para a educação superior - uma com ênfase social e outra com ênfase econômica - e, por fim, aponto o ‘caminho do meio’ como uma alternativa desejável a tais visões.
Século XXI – Da educação das certezas à educação na incerteza: um estudo introdutório
Authors: Smaniotto Vanderlei , Berticelli Ireno Antônio
Published: October 2018

Este artigo tem como objetivo elucidar a compreensão filosófica da educação sob as condições do que Zygmunt Bauman denomina modernidade líquida. Aproximamos ciência e educação modernas que, historicamente, se fundaram nas certezas, com suas propostas de ideais duradouros e sólidos pretensamente garantidos por modelos físico-matemáticos. É um olhar sobre a ciência e sobre a educação, numa conjuntura de fluidez e incertezas, para analisar as relações, no horizonte da crise e das incertezas que atinge a ambas na contemporaneidade. Esperamos é situar os processos educacionais no contexto de compreensão do que se denomina correntemente de pós-modernidade ou modernidade líquida.
Analysis of Factors Associated with The Quality of Life of Clients with Schizophrenia In Outpatient Ward Prof. Dr. Hb Saanin Padang Hospital
Authors: Wenny Bunga Permata
Published: October 2018

Purpose :The life quality of schizophrenic clients is influenced by individual factors (age, sex, educational status, employment status, marital status), disease factors (ever treated, history of substance abuse, suicide history, history of violent behavior) and family factors (living with offenders, family support and family burden).The purpose of this study is to analyze factors related to quality of life of skizofrenia clients in outpatient installation Prof. Dr. Hb Saanin Psychiatric Hospital Padang. Method :The type of this research is descriptive correlative with cross sectional approach with the number of respondents 152 people. The sampling technique used is purposive sampling. Result:  The results showed that there was a significant relationship between employment status, marital status, previous care, living with care giver, family support, and family burden on the life quality of schizophrenic patients (p <0.05). There was no significant association between age, sex, educational status, history of substance abuse, suicide history, history of violent behavior with life quality. The most dominant factor in this study was to stay with care giver ((coeffecients B = -5.577).

 

Keywords:  Individual factors, disease factors, family factors, quality of life, schizophrenia
DIFFERENCES OF CORRELATION FACTORS OF DEPRESSION AMONG THE SENIOR CITIZENS WHO LIVE WITH THEIR FAMILY AND THOSE WHO LIVE IN SABAI NAN ALUIH NURSING HOME, SICINCIN IN 2015
Authors: Martin Weddy
Published: October 2018

Objective: The number of senior citizen in Indonesia, wheter the ones who live with their family or in a nursing home, is increasing. The changes they face in their elderly life lead to depression. Depression is a common mental health problems found in the elderly. This study aims to analyze the differences of correlation factors of depression among the senior citizens who live with their family and those who live in Sabai Nan Aluih Nursing Home, Sicincin.The design of the study is descriptive analytic with cross sectional approach. The subject of the study were 74 senior citizens who live with their family and also 74 senior citizen who live in nursing home. The sample was taken by using total sampling technique. The statistical test showed that there was a correlation of depression factors between the depression on the senior citizens who live with their family and those who live in a nursing home. There also were differences of depression factors between depression on senior citizens who live with their family and those who live in a nursing home.Based on the study, Sabai Nan Aluih Nursing Home is suggested to improve its service quality on elderly care. For families with senior citizens, it is suggested to give more attention and care to the elderly with depression and to prevent depression for the elderly with no depression.

Keywords: depression factor, depression, family with senior citizens, senior citizens in nursing home, the elderly
Postnatal mother: Knowledge and attitude towards Neonatal Jaundice (NNJ)
Authors: Said Norimah
Published: October 2018

ABSTRACT: Neonatal jaundice (NNJ) is a pathological situation where an imbalance between bilirubin production and excretion is present due to a multitude of factors.  The objective of this study is to identify the number of post-natal mothers who had received education and their attitude on neonatal jaundice.  A cross-sectional design was carried out among 131 posts natal mother. The questionnaire was given to the respondents. Results show there is a significant relationship between knowledge and attitude towards neonatal jaundice among postnatal mother. A part 50% of the mothers have a neutral attitude, 27.5% have a positive attitude and 8.4% have a negative attitude towards neonatal jaundice. The outcome of this study showed that most of them others have good knowledge on neonatal jaundice. However, they may fear invasive procedures such as taking blood from their baby. Future studies should focus on attitude towards traditional treatments among postnatal mothers.
THE INFLUENCE OF THOUGHT STOPPING THERAPHY AND FAMILY PSYCHOEDUATIONTOWARD ANSIETAS CLIENT WHOUNDERGO HEMODIALISYSIN DR. ACHMAD MOCHTAR HOSPITALBUKITTINGGI 2015
Authors: Sari Yade Kurnia
Published: October 2018

Clients hemodialysis who were hospitalized around 43.1% experienced anxiety conditions. This is caused by the Client renal failure undergoing hemodialysis, takes 12-15 hours of dialysis every week, or at least 3-4 hours therapies. This activity will take place continuously throughout their life. This research is aimed to determine the effect of Therapy Thought Stopping and Family Psychoeducation Toward anxiety clients who undergo hemodialysis in RSAM Bukittinggi. The research design is Quasi Experimental Pre and Post test with a total sample of 64 peoples. Who received Therapy Thought Stopping and Family Psychoeducation as many as 32 peoples, and Therapy Thought Stopping just as much as 32 peoples. The using HARS scale to determine the client's level of anxiety. The results showed a significant decrease in anxiety condition in the intervention group who received Therapy Thought Stopping and family psychoeducation, compared with group who only get of therapy thought stopping (P value <0.05). Therapy Thought Stopping and Family Psychoeducation hemodialysis is recommended to clients who experience anxiety in RSAM Bukittinggi.Keywords: Anxiety, Therapy Thought Stopping, Family Psychoeducation
THE RELATION OF COPPING STRATEGY BY LOOKING SOCIAL SUPPORT WITH STRESS LEVEL OF BREAST CANCER PATIENT WHO GONE TROUGH CHEMOTHERAPY
Authors: Putri Sri Burhani
Published: October 2018

Breast cancer is one of the most common illness that killed woman. One of the therapy to cure breast cancer is chemotherapy. Chemotherapy has side effect either physical and psychology, that caused people who’s in chemo therapy, prone to stress. Stress effected by many factors, such as characteristic and chopping strategy that patient has been using. The aim of this research is to get a perspective about the relation of characteristic and chopping strategy with breast cancer patient stress, whose in chemo therapy. This research using cross sectional study and taking sample by using accidental sampling method. The data analyzed by using bavariat and multivariat with variable result shows that breast cancer patient stress who has chemo therapy realted to age characteristic (p value = 0.00) the time since they diagnosed with cancer (pvalue = 0.03), how long they have chemo therapy (pvalue = 0.00) and chopping strategyby looking social support (pvalue = 0.00) looking for spiritual (pvalue = 0.00) with dominan variable which related to stress is chopping strategy to looking spiritual support (coeffecients B = -1.139).

 

Key words : Breast cancer, chemotherapy, stress
Sistem Pengatur Irigasi Sawah Menggunakan Metode Irigasi Alternate Wetting and Drying Berbasis Teknologi Internet of Things
Authors: Ichwana Dody
Published: October 2018

Beras merupakan kebutuhan pokok mayoritas mayarakat Indonesia dan sebagian besar penduduk bekerja sebagai petani. Namun kebutuhan beras masyarakat masih belum mencukupi. Untuk memenuhi kebutuhan beras masyarakat, perlu dilakukan peningkatan hasil produksi padi dengan memperhasikan faktor yang dapat meningkatkan hasil produksi padi seperti kadar air sawah. Pada penelitian ini dirancang prototype sistem pengatur irigasi sawah menggunakan metode irigasi AWD dengan mengatur aktivasi buka dan tutup pintu air masuk dan pintu air keluar berdasarkan usia tanaman padi yang dihitung menggunakan RTC dan tinggi air sawah yang diukur menggunakan sensor ultrasonik. Sistem juga dirancang untuk menerima input usia tanaman padi dan nonaktif sistem dari aplikasi mobile melalui modul ESP8266. Hasil pengujian dari sistem ini dapat mengukur tinggi air dengan keakuratan 95.68% dan  membaca waktu secara real-time dengan keakuratan 98.67%. Motor  servo DS04 NFC bekerja membuka pintu dengan durasi 60 detik dan menutup pintu dengan durasi 56 detik. Sistem pengatur irigasi sawah dapat mengatur tinggi air dengan persentase keberhasilan 81.48%. Sistem dapat menerima input dan nonaktif sistem dengan persentase keberhasilan sebesar 70%.
PENINGKATAN KINERJA KARYAWAN MELALUI PERSEPSI LOCUS OF CONTROL INTERNAL DAN LOCUS OF CONTROL EKSTERNAL DI PT XYZ (SEBUAH STUDI PADA DEALER SEPEDA MOTOR DI JAKARTA)
Authors: Irsyadi Achmad Rizal , Budi N Yohanes Arianto
Published: October 2018

The study aims to examine the impact of internal and external locus of control towards employee’s performance at a motor bike dealer in Jakarta. Independent variables used in this research are internal and external Locus of Control, while the dependent variable is employee performance. Primary data was used in this research acquired directly through survey from the sample of 36 peoples out of 52 populations. The analysis used in this examination was multiple linear regression, F-test, T-test, and hypothetical test. The result in this study are there is a significant impact from both independent variables, internal and external locus of control towards employee’s performance. The mean score results indicate that employee’s confidence in the internal locus of control affecting its performance is high at 3.64, while the confidence of employees in external locus of control is at a moderate level, namely 3.33. But either way, both internal and external locus of control has a significant effect on the employee performance. This shows that in fact, the employees also showed confidence in the external things that can affect its performance.
Dokuz Eylül Üniversitesi Tıp Fakültesinde Akran Danışmanlığı Programı: İki Yıllık Deneyim
Authors: MUSAL Berna
Published: October 2018

Dokuz Eylül Üniversitesi Tıp Fakültesinde Dönem 1 öğrencilerinin fakülte ve eğitim sistemine uyumlarını kolaylaştırmak amacıyla akran danışmanlığı programı geliştirilmiş ve uygulanmaya başlanmıştır. Bu makalede akran danışmanlığı programına ilişkin iki yıllık deneyimin paylaşılması amaçlanmıştır. Akran danışmanlığının Dönem 1 öğrencilerine fakülte ve eğitim sistemine uyum konusunda önemli katkılar sağladığı, deneyimler ve geribildirimler ışığında geliştirilerek sürdürülmesi gerektiği düşünülmektedir.
Architectured Helically Coiled 3D Structures from Elastomeric Poly(butylene succinate)(PBS) Copolyester
Authors: Sonseca Agueda , Sahay Rahul , Stepien Karolina , Bukała Julia , Wcislek Aleksandra , McClain Andrew , Sobolewski Peter , Sui XiaoMeng , Puskas Judit E. , Kohn Joachim , Wagner H. Daniel , El Fray Miroslawa
Published: October 2018

Electrospinning is one of the most investigated methods used to produce polymeric fiber structures that mimic the morphology of native extracellular matrix. These structures have been extensively studied in the context of scaffolds for tissue regeneration. However, the compactness of materials obtained by traditional electrospinning, collected as two-dimensional non-woven scaffolds, can limit cell infiltration and tissue ingrowth. In addition, for applications in smooth muscle tissue engineering, highly elastic scaffolds capable of withstanding cyclic mechanical strains without suffering significant permanent deformations are preferred. In order to address these challenges, we report the fabrication of microscale 3D helically coiled structures (referred as 3D-HCS) by wet-electrospinning method, a modification of the traditional electrospinning process in which a coagulation bath (non-solvent system for the electrospun material) is used as the collector. The present study, for the first time, successfully demonstrates the feasibility of using this method to produce various architectures of 3D helically coiled structures (HCS) from segmented copolyester of poly(butylene succinate-co-dilinoleic succinate) (PBS-DLS), a thermoplastic elastomer. A mechanism for the HCS formation is proposed and verified with experimental data. Fabricated 3D-HCS showed high specific surface area, high porosity, and good elasticity. Further, the marked increase in cell proliferation on 3D-HCS confirmed the suitability of these materials as scaffolds for soft tissue engineering.
Intercalation of First Row Transition Metals inside Covalent-Organic Frameworks (COF): a Strategy to Fine Tune the Electronic Properties of Porous Crystalline Materials
Authors: Pakhira Srimanta , Mendoza-Cortes Jose
Published: October 2018

Covalent organic frameworks (COFs) have emerged as an important class of nano-porous crystalline materials with many potential applications. They are intriguing platforms for the design of porous skeletons with special functionality at the molecular level. However, despite their extraordinary properties, it is difficult to control their electronic properties, thus hindering the potential implementation in electronic devices. A new form of nanoporous material, COFs intercalated with first row transition metal is proposed to address this fundamental drawback - the lack of electronic tunability. Using first-principles calculations, we have designed 31 new COF materials in-silico by intercalating all of the first row transition metals (TMs) with boroxine-linked and triazine-linked COFs: COF-TM-x (where TM=Sc-Zn and x=3-5). This is a significant addition considering that only 187 experimentally COFs structures has been reported and characterized so far. We have investigated their structure and electronic properties. Specifically, we predict that COF's band gap and density of states (DOSs) can be controlled by intercalating first row transition metal atoms (TM: Sc - Zn) and fine tuned by the concentration of TMs. We also found that the $d$-subshell electron density of the TMs plays the main role in determining the electronic properties of the COFs. Thus intercalated-COFs provide a new strategy to control the electronic properties of materials within a porous network. This work opens up new avenues for the design of TM-intercalated materials with promising future applications in nanoporous electronic devices, where a high surface area coupled with fine-tuned electronic properties are desired.
Microstructure determines water and salt permeation in commercial ion exchange membranes
Authors: Kingsbury Ryan , Zhu Shan , Flotron Sophie , Coronell Orlando
Published: October 2018

Ion exchange membrane (IEM) performance in electrochemical processes such as fuel cells, redox flow batteries, or reverse electrodialysis (RED) is typically quantified through membrane selectivity and conductivity, which together determine the energy efficiency. However, water and co-ion transport (i.e., osmosis and salt diffusion / fuel crossover) also impact energy efficiency by allowing uncontrolled mixing of the electrolyte solutions to occur. For example, in RED with hypersaline water sources, uncontrolled mixing consumes 20-50% of the available mixing energy. Thus, in addition to high selectivity and high conductivity, it is desirable for IEMs to have low permeability to water and salt in order to minimize energy losses. Unfortunately, there is very little quantitative water and salt permeability information available for commercial IEMs, making it difficult to select the best membrane for a particular application. Accordingly, we measured the water and salt transport properties of 20 commercial IEMs and analyzed the relationships between permeability, diffusion and partitioning according to the solution-diffusion model. We found that water and salt permeance vary over several orders of magnitude among commercial IEMs, making some membranes better-suited than others to electrochemical processes that involve high salt concentrations and/or concentration gradients. Water and salt diffusion coefficients were found to be the principal factors contributing to the differences in permeance among commercial IEMs. We also observed that water and salt permeability were highly correlated to one another for all IEMs studied, regardless of polymer type or reinforcement. This finding suggests that transport of mobile salt in IEMs is governed by the microstructure of the membrane, and provides clear evidence that mobile salt does not interact strongly with polymer chains in highly-swollen IEMs.
On the Role of Valence and Semi-Core Electron Correlation on Spin-Gaps in Fe(II)-Porphyrins
Authors: Li Manni Giovanni , Kats Daniel , Tew David , Alavi Ali
Published: October 2018

The role of valence and semi-core correlation in differentially stabilizing the intermediate spin-state of Fe(II)-porphyrins is analyzed. CASSCF treatment of the valence correlation, with a (32,34) active space containing metal 3d, 4d orbitals

and the entire π system of the porphyrin, is necessary to stabilize the intermediate spin-state for this system. Semi-core correlation provides a quantitatively significant (~1.5 kcal/mol) but less important correction. Accounting for both types of correlation enlarges the (3Eg−5A1g) spin-gap to −5kcal/mol.
Melt Electrowriting of Electroactive Poly(vinylidene difluoride) Fibers
Authors: Florczak Sammy , Lorson Thomas , Zheng Tian , Mrlik Miroslav , Hutmacher Dietmar , Higgins Michael , Luxenhofer Robert , Dalton Paul
Published: October 2018

Poly(vinylidene difluoride) (PVDF) has piezoelectric properties suitable for numerous applications such as flexible electronics, sensing and biomedical materials. In this study, individual fibers with diameters ranging from 17-55 μm were processed using melt electrowriting (MEW). Electroactive PVDF fibers can be fabricated via MEW, while the polymer could remain molten for up to ten hours without noticeable changes in the resulting fiber diameter. MEW processing parameters for PVDF were investigated, including applied voltage, pressure and temperature. A rapid fiber characterization methodology for MEW that automatically determines the fiber diameters from camera images taken of microscope slides was developed and validated. The outputs from this approach followed previous MEW processing trends already identified with different polymers, although overestimation of the < 25 micron fiber diameters was observed. The transformation of the PVDF crystalline phase to the electroactive beta-phase – without poling – was confirmed using piezo-force microscopy and revealed that the PVDF fibers possess piezoelectric responses showing d33~19 pm/V.
EKSNOMINASI POLITIK DALAM NARASI: KONSEPTUALISASI PEMIKIRAN MITOLOGIS ROLAND BARTHES DAN IMPLIKASI METODOLOGISNYA DALAM KAJIAN SASTRA
Authors: Setiawan Ikwan
Published: October 2018

This article deals with Roland Barthes’ mythological thinking and its methodological implication in literary studies. Its basic thinking is that in various modes of representation exist the dynamics of mythical signification using denotative signification as its basic and aims to address particular message to readers or viewers. Such signification intertwines with the complexity of discourses, histories, knowledge, and problems in the real life. Its final goal is to depoliticize and ex-nominates making something nameless dominant political interest in narrative naturally. Barthes also conceptualizes an idea on second myth that uses (the first) myth as its basis of signifying process to subvert the dominant class’ political interest. For explaining the contributions of these two mythological perspectives in literary studies, I give conceptualize method of analysis using both of them. As concluding remarks, I position Barthes’ mythological thinking as a theoretical framework which can avoid literary studies from over intervention of outside-literary factors political economy, general theories, etc. that make the studies seem losing their narrative base. Because Barthes’ perspective emphasizes on reading of narrative dynamics without negating exploration of discursive richness in signifying process, naturalization of ideological discourses, and ex-nomination of particular political interest.AbstrakTulisan ini membahas pemikiran mitologis Roland Barthes serta implikasi metodologisnya dalam kajian sastra. Inti dari pemikirannya adalah bahwa dalam beragam moda representasi berlangsung dinamika penandaan mitis yang menggunakan penandaan denotatif sebagai basisnya dan bertujuan menyampaikan pesan tertentu kepada pembaca ataupun penonton. Penandaan tersebut berjalin-kelindan dengan kompleksitas wacana, sejarah, pengetahuan, dan permasalahan dalam kehidupan nyata. Tujuan akhirnya adalah untuk mendepolitisasi dan mengeksnominasi menjadikan sesuatu tak bernama kepentingan politik dominan dalam narasi secara alamiah. Barthes juga mengkonseptualisasikan gagasan tentang mitos kedua yang menggunakan mitos (pertama) sebagai basis proses penandaan untuk mensubversi kepentingan politik kelas dominan. Untuk menjelaskan implikasi metodologis kedua perspektif mitologis tersebut dalam kajian sastra, saya mengkonseptuliasikan metode analisis dengan menggunakan keduanya. Sebagai simpulan, saya memosisikan pemikiran mitologis Barthes sebagai kerangka teoretis yang bisa menghindarkan kajian sastra dari intervensi berlebihan dari faktor-faktor di luar sastra faktor ekonomi-politik, teori-teori umum, dan lain-lain yang menjadikan kajian tersebut tampak kehilangan pijakan naratif. Karena perspektif Barthes menekankan kepada pembacaan dinamika naratif dalam kerangka penandaan tanpa mengabaikan eksplorasi kekayaan diskursif dalam proses penandaan, naturalisasi wacana ideologis, dan eks-nominasi kepentingan politik partikular.
TRADISI AKIKAH MASYARAKAT MELAYU PENTAS SASTRA LOKAL “SYAIR NYANYIAN ANAK” DALAM KAJIAN ETNOPUITIKA
Authors: Sahril Sahril
Published: October 2018

This study examines the Akikah tradition through performing “Syair Nyanyian Anak” to the Malay people of North Sumatra. The problem studied, namely how the concept stage “Syair Nyanyian Anak” is present in Akikah tradition. This study uses the theory ethnopoetics with qualitative research methods. Data was collected through observation, interviews, and literature. The findings of this study are, Akikah tradition is still often done by people, but with regard to the implementation stage “Syair Nyanyian Anak” by a group of very rare marhaban been implemented. The pattern of the local literary scene found a poem without reading the written text sung by the group marhaban. Text lyric sung alternately by marhaban group. Success is highly dependent on the literary stage if voice chanting poetry text. The texts of these poems contain didactic values and can be used as teaching material for the formation of character.AbstrakPenelitian ini mengkaji tradisi akikah melalui pentas “Syair Nyanyian Anak” di masyarakat Melayu Sumatera Utara. Masalah yang dikaji adalah bagaimana konsep pentas “Syair Nyanyian Anak” hadir dalam tradisi akikah. Penelitian ini menggunakan teori etnopuitika dengan metode penelitian kualitatif. Pengumpulan data dilakukan dengan teknik observasi, wawancara, dan studi pustaka. Temuan penelitian ini adalah bahwa tradisi akikah masih sering dilakukan oleh masyarakat, tetapi berkaitan dengan pelaksanaan pentas “Syair Nyanyian Anak” oleh kelompok marhaban sudah sangat langka dilaksanakan. Pola pentas sastra lokal yang ditemukan berupa pembacaan syair tanpa teks tertulis yang dinyanyikan oleh kelompok marhaban. Teks syair dinyanyikan secara bergantian oleh kelompok marhaban. Keberhasilan pentas sastra sangat bergantung pada olah suara yang melantunkan teks syair. Teks-teks syair itu mengandung nilai didaktis dan dapat dijadikan bahan ajar untuk pembentukan karakter anak.
ANALISIS PENGGUNAAN JUJU HYOUGEN 授受表現 DALAM KALIMAT BAHASA JEPANG
Authors: Iriantini Sri
Published: October 2018

Keberagaman struktur dalam bahasa Jepang membuat bahasa ini menjadi salah satu bahasa yang cukup sulit dipelajari oleh pembelajar asing. Unsur budaya yang sering tercermin dalam berbahasa sehari-hari pun menjadi salah satu sebab mengapa bahasa Jepang menjadi salah satu bahasa yang sulit untuk dipelajari. Misalnya dalam penggunaan struktur kalimat yang menggunakan giving receiving verbs ‘verba memberi menerima’ yang dalam bahasa Jepang dikenal dengan istilah verba yarimorai (juju doushi) yang terdiri dari verba yaru, ageru, kureru, morau, sashiageru, kudasaru, dan itadaku. Penggunaan verba yarimorai dalam suatu situasi ujar tertentu yang disebut dengan juju hyougen ini, digunakan untuk menyatakan adanya perpindahan barang atau jasa dari pembicara atau seseorang kepada orang lain, yang berhubungan erat dengan budaya masyarakat Jepang yang menganut konsep uchi – soto, yang sangat menjaga kehidupan sosialnya supaya tetap harmonis, sehingga dalam berbahasa pun mereka sangat menjaga supaya tidak menyakiti hati lawan bicara, dengan cara meninggikan lawan bicara, dan merendahkan diri sendiri. Selain itu, penggunaan verba yarimorai ini ada yang berkaitan dengan onkeisei ‘kebaikan’ untuk atau dari seseorang. Oleh karena itu, perlu pemahaman yang baik supaya dapat memilih dengan tepat verba yarimorai yang digunakan sehingga aktivitas komunikasi pun dapat berjalan dengan lancar. Verba yarimorai ini dapat digunakan pula sebagai verba bantu yang melekat dengan verba lainnya sebagai hojo doushi, yang menambahkan makna kepada verba intinya, untuk menjelaskan pemberi dan penerima dalam kalimat tersebut.
JOSHI NI, DE, DAN O SEBAGAI KATEGORI POSTPOSISIONAL/PEMARKAH DALAM BAHASA JEPANG: KAJIAN SINTAKTIS DAN SEMANTIS
Authors: Rostini Titien
Published: October 2018

Hasil penelitian tipologis terhadap bahasa-bahasa di dunia menunjukkan adanya berbagai corak pola urutan yang masing-masing memiliki corak internal bawahannya sendiri yang menyangkut bermacam-macam konstruksi yang ada di dalamnya. Bahasa Jepang (BJ) sebagai salah satu bahasa asing di Indonesia memiliki berbagai jenis karakteristik yang berbeda dengan struktur bahasa Indonesia. Secara tipologis, perbedaan yang paling mencolok adalah BJ memiliki linearitas kata S-O-P yang bersifat postposisional dalam bentuk partikel yang secara obligatoris muncul dalam kalimat. Secara hipotesis, dinyatakan bahwa partikel BJ berjumlah sekitar 70 jenis. Kehadiran partikel dalam kalimat bersifat multifungsi. Selain itu, dalam BJ sering ditemukan adanya partikel rangkap (double particles).Tulisan ini akan mendeskripsikan ihwal partikel (ni, de, dan o) baik yang berfungsi sebagai pemarkah (markers) atau sebagai postposisional. Selain itu, akan dikaji pula dengan melibatkan pemahan makna aspektualitas, aksionalitas dan temporalitas.
Ankaferd blood stopper accelerates deep second degree burn wound healing in rats
Authors: Topal Ayse , Satar Nihal Y. Gul , Cangul I. Taci , Oktay M. Ayberk , Inan Kivanc , Cecen Goksen , Akarsu E. Pinar , Can Hakcahan
Published: October 2018

In this study, the effects of Ankaferd Blood Stopper (ABS) and silver sulphadiazine (SSD) cream on burn wound healing were investigated in rats. A total of 24 outbred, male, Sprague-Dawley rats were randomly allocated to (1) ABS, (2) SSD, and (3) control groups. Bilateral burn wounds were created near the caudal border of the scapula. Wounds in each group were treated daily with sponges soaked in ABS solution, 1% SSD cream, or saline, respectively. On days 0, 7, 14, 21, and 28, unhealed wound area was measured and biopsy samples were taken for histopathological examination (except day 0). At the end of day 28, all rats in the ABS and SSD groups had complete coverage of the wounds with granulation tissue and epithelialization, whereas wounds in the control group were not completely epithelialized. On day 7, the mean unhealed wound areas and the mean percentages of wound contraction were not significantly different among the groups. However, the mean percentage of wound contraction in the ABS and SSD groups was significantly higher than in the control group on days 14, 21, and 28. Histopathologically, wound healing was characterized by a decrease in neutrophil counts and an increase in vessel counts. Our results suggest that ABS can be successfully used for burn wound healing besides SSD.
Development of a time-effective and highly specific quantitative real-time polymerase chain reaction assay for the identification of Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus in artisanal raw cow’s milk cheese
Authors: Stachelska Milena Alicja , Foligni Roberta
Published: October 2018

The first objective of this work included the development of real-time polymerase chain reaction (RT-PCR) which is also known as quantitative polymerase chain reaction (qPCR) assays to quantify two species of lactic acid bacteria which play a very important role in cheese ripening: Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus. The second objective was the comparison of qPCR and plate counts of these two species present in raw cow’s milk cheese samples during different stages of ripening. Thirty-three deoxyribonucleic acid (DNA) samples coming from seven different bacterial species, which were phylogenetically related or commonly isolated from raw milk and dairy products, were chosen as positive and negative controls. The qPCR assays showed a high quantification capacity characterised by their linearity (R2 > 0.998), PCR efficiencies which were within the range 78.0–90.0% for L. delbrueckii subsp. bulgaricus, and 93.6–100.5% for S. thermophilus, and quantification limit (103 gene copies/ml for L. delbrueckii subsp. bulgaricus and 10 gene copies/ml for S. thermophilus). The importance of our study is in the monitoring of changes in populations of L. delbrueckii subsp. bulgaricus and S. thermophilus contributing to cheese ripening using the newly designed qPCR assay.