bluuebunny/crossref_metadata_2025 huggingface dataset:
Вплив освітньої системи на рівень особистісної тривожності учнів вальдорфської школи та учнів загальноосвітніх шкіл
Authors: Передерій Ольга Леонідівна
Published: September 2018

У статті здійснено теоретичний аналіз проблеми впливу освітньої системи на рівень особистісної тривожності учнів. Виокремлено найістотніші причини виникнення тривожності школярів різних вікових груп. Розкрито основні відмінності рівнів особистісної тривожності учнів вальдорфської та загальноосвітніх шкіл. Надано рекомендації щодо корекціїосвітньої системи з метою зниження тривожності та стабілізації емоційного стану учнів.
Predicting Climate-Driven Habitat Shifting of the near Threatened Satyr Tragopan (Tragopan Satyra; Galliformes) in the Himalayas
Authors: Chhetri Bijoy , Badola Hemant K. , Barat Sudip
Published: September 2018

Current rates of climatic change will affect the structure and function of community assemblages on Earth. In recent decades, advances in modelling techniques have illuminated the potential effects of various climatic scenarios on biodiversity hotspots, including community assemblages in the Himalayas. These techniques have been used to test the effects of representative concentration pathways (RCPs) AR5-2050, based on future greenhouse gas emission trajectories of climate change scenario/year combinations, on pheasants. Current bioclimatic variables, Miroc-esm, Hadgem2-AO and Gfdl-cm3, in future climate change scenario models, were used to predict the future distribution and the gain/loss of future habitat area, within the Himalayas, of the pheasant, Satyr Tragopon (Tragopan satyra). The results indicate that future climatic conditions may significantly affect the future distribution of Satyr Tragopon and the effectiveness of protective areas (PAs). Using the python based GIS toolkit, SDM projection, regions of high risk under climate change scenarios were identified. To predict the present distribution of the species, environment parameters of bioclimatic variables, red reflectance, blue reflectance, solar azimuth angle, altitude, slope, aspect, NDVI, EVI, VI, and LCLU were used. The forest cover (NDVI) and the canopy cover (EVI), and variables affecting forest structure, namely altitude, slope, solar azimuth angle and Bio7, were the primary factors dictating the present distribution of T. satyra. The predicted trend of habitat shifting of T. satyra in the Himalayas to higher altitudes and latitudes will gradually become more prominent with climate warming.
STIMULASI HASIL MELON ( Cucumis melo, L) DENGAN MENGGUNAKAN BIOTO GROW GOLD (BGG)
Authors: ARITONANG SAHINDAH , SURTINAH SURTINAH
Published: September 2018

The experiment was conducted experimentally using non-factorial Randomized Design (RAL) with 5 (five) treatment levels without Bioto Grow Gold, Bioto Grow Gold 1 ml liter-1 water, Bioto Grow Gold 2 ml liter -1 water, giving Bioto Grow Gold 3 ml liter-1 water and giving Bioto Grow Gold 4 ml liter-1 water. The data analysis used variance and continued with a different test of Duncan treatment average at p 0.05. The results showed that BGG treatment had the significant effect on leaf length, leaf width, stem diameter, flowering age, fruit circumference, fruit weight, a thickness of flesh and sugar content of melon fruit. The best treatment is giving Bioto Grow Gold 3 ml liter-1 water.
El Hospital del Día, como respuesta al deficiente servicio de salud pública de Vinces, provincia de Los Ríos
Authors: Samaniego Alcivar Gina Eudocia , Alcívar Macías Silvia Corina , Lozano Leiva Andrea
Published: September 2018

El estudio acerca del servicio público de salud del cantón Vinces, que es tema de este artículo, se debe al deficiente servicio por el que atraviesa la población del mencionado cantón, lo que da lugar al traslado de pacientes a cantones vecinos, abandonando su sector de origen. Es así que los propósitos del artículo son: determinar las causas por las que la población acude al hospital; medir la cultura de prevención de salud; las enfermedades de mayor incidencia y especialistas que la población requiere. Para alcanzar los mencionados propósitos se aplicó técnica de encuesta-muestreo a 83 pobladores; la muestra fue tomada de diferentes sectores del cantón:  centro urbano, sectores peri-centrales y sub-urbanos del cantón. Posteriormente, se muestran gráficos estadísticos, que permitieron el análisis de la información recolectada y luego poder concluir acerca de la problemática de salud para pasar posteriormente al análisis y propuesta de la solución espacial.
A Document on Peace and Protest in the Pages Stained With Blood By Indira Goswami
Authors: Vanitha T
Published: September 2018

Indira Goswamy popularly known as MamoniRaisomGoswami an icon of Assamese Literature presents the contrasting effects of peace as well as protest in her novel pages stained with blood.It was written in Assamese and later translated by Pradip Acharya in English. Actually Goswamy desired to write a book on Delhi with its pride and pomp. She settled in a small cooped up flat in Sather nagar, Delhi. She came across a few Sikh people who helped her in one way or other. She had learnt various anecdotes about the Moghal and the British rulers. Some were tell- tale stories and some were records of the past. She even visited whores colony to collect sources for her material.
Where ever she went she showed courtesy to her fellow human beings and tried to help them in all possible ways. The novel is an out pour of her bitter memories during the anti -Sikh Riots caused by the assassination of Smt. Indira Gandhi when she was the prime minister of India. Neither the politicians nor the administers bothered much about the
communal calamities. Negligence of the authorities and heart rendering cry of the suppressed have left a deep scar in her heart. She is unable to accept the cruel reality. She highlights some of the good qualities of the Sikh people such as not accepting money even in their worst condition. Their sincere prayer to forgive the people who caused severe damage to Gurudwara. Madan Bhaisahab’s timely help to the injured are
some proofs. She also presented an amazing fact that no one has touched the politician’s house during the agitation. As the author feels these pages of Indian History are stained with blood. It is an eternal stain which could not be washed away.
Towards a Non - Anthropocentric Paradigm: A Study of Select Narratives
Authors: S P AmrithaVydoori
Published: September 2018

Enthroning human being at the centre stage of the universe gathered momentum with the emergence of humanism. This human centeredness later on gave way to a more anthropological term, viz.: anthropocentrism which considers Man as the Supreme Being. The anthropocentric point of view has created an ecological imbalance on our Earth. To ensure a harmonious coexistence of human beings and animals it is imperative to go beyond the narrow anthropocentric paradigms. A non- anthropocentric view which gives space, accepts and acknowledges the differences of other beings is to be developed. The present paper attempts to make a study of Daniel Defoe‘s Robinson Crusoe, Life of Pi
directed by Ang Lee and Instinct by Jon Turteltaub to focus on the basic precepts of humanism, anthropocentrism and non-anthropocentrism in the select narratives.
Some remarks regarding the $(p,q)-$Fibonacci and Lucas octonion polynomials
Authors: ÖZKOÇ ÖZTÜRK Arzu , Porsuk Ayhan
Published: September 2018

We investigate the $(p,q)-$Fibonacci and Lucas octonion polynomials. The main purpose of this paper is using of some properties of the $(p,q)-$ Fibonacci and Lucas polynomials. Also for present some results involving these octonion polynomials, we obtain some interesting computational formulas.
An algorithm for constructing S-boxes for block symmetric encryption
Authors: SATTAROV Alijon Bozorbayevicha , ABDURAHİMOV Bakhtiyor Fayzievich
Published: September 2018

This article presents an algorithm for the generation of S-boxes with the maximum algebraic immunity and high nonlinearity. The algorithm is founded method of the permutation of output element of S-box. On basis of the proposed method, $S(8\times 8)$-box created, with the algebraic immunity 3 (441) and nonlinearity 104. The algorithm given in this article can be used for oscillation of $S(8\times 8)$)-boxes with the increased resistance to algebraic, linear, differential and linear and differential methods of a cryptanalysis, for block symmetric algorithms of encryption.
Age-Dependent Decrease of Mitochondrial Complex II Activity in a Familial Mouse Model for Alzheimer’s Disease
Authors: Emmerzaal Tim L. , Rodenburg Richard J. , Tanila Heikki , Verweij Vivienne , Kiliaan Amanda J. , Kozicz Tamas
Published: September 2018

Alzheimer’s disease (AD) is a severe neurodegenerative disorder for which the exact etiology is largely unknown. An increasingly recognized and investigated notion is the pathogenic role of mitochondrial dysfunction in AD. We assessed mitochondrial oxidative-phosphorylation (OXPHOS) enzyme activities in the APPswe/PS1ΔE9 mouse model from 4.5 to 14 months of age. We show an age-dependent decrease in mitochondrial complex-II activity starting at 9 months in APP/PS1 mice. Other enzymes of the OXPHOS do not show any alterations. Since amyloid-β (Aβ) plaques are already present from 4 months of age, mitochondrial dysfunction likely occurs downstream of Aβ pathology in this mouse model.
Effectiveness of a Personalized Brain-Computer Interface System for Cognitive Training in Healthy Elderly: A Randomized Controlled Trial
Authors: Yeo Si Ning , Lee Tih Shih , Sng Wei Theng , Heo Min Quan , Bautista Dianne , Cheung Yin Bun , Zhang Hai Hong , Wang Chuanchu , Chin Zheng Yang , Feng Lei , Zhou Juan , Chong Mei Sian , Ng Tze Pin , Krishnan K. Ranga , Guan Cuntai
Published: September 2018

Background:

Cognitive training has been demonstrated to improve cognitive performance in older adults. To date, no study has explored personalized training that targets the brain activity of each individual.

Objective:

This is the first large-scale trial that examines the usefulness of personalized neurofeedback cognitive training.

Methods:

We conducted a randomized-controlled trial with participants who were 60–80 years old, with Clinical Dementia Rating (CDR) score of 0–0.5, Mini-Mental State Examination (MMSE) score of 24 and above, and with no neuropsychiatric diagnosis. Participants were randomly assigned to the Intervention or Waitlist-Control group. The training system, BRAINMEM, has attention, working memory, and delayed recall game components. The intervention schedule comprised 24 sessions over eight weeks and three monthly booster sessions. The primary outcome was the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total score after the 24-session training.

Results:

There were no significant between-subjects differences in overall cognitive performance post-intervention. However, a sex moderation effect ( p = 0.014) was present. Men in the intervention group performed better than those in the waitlist group (mean difference, +4.03 (95% CI 0.1 to 8.0), p = 0.046. Among females, however, both waitlist-control and intervention participants improved from baseline, although the between-group difference in improvement did not reach significance. BRAINMEM also received positive appraisal and intervention adherence from the participants.

Conclusion:

A personalized neurofeedback intervention is potentially feasible for use in cognitive training for older males. The sex moderation effect warrants further investigation and highlights the importance of taking sex into account during cognitive training.
PTPRC Expression in Blood is Downregulated in Parkinson’s and Progressive Supranuclear Palsy Disorders
Authors: Bottero Virginie , Santiago Jose A. , Potashkin Judith A.
Published: September 2018

Background:

Parkinson’s disease (PD) shares pathological and clinical features with progressive supranuclear palsy (PSP) patients making the diagnosis challenging. Distinguishing PD from PSP is crucial given differences in disease course, treatment and clinical management.

Objective:

Although some progress has been made in the discovery of biomarkers for PD and PSP, there is an urgent need to identify additional biomarkers capable of distinguishing between these diseases.

Methods:

In this study, we tested the phosphatases DUSP8 and PTPRC for their diagnostic potential using quantitative PCR assays, in blood of 138 samples from participants nested in the Parkinson’s Disease Biomarkers Program.

Results:

Relative abundance of PTPRC mRNA was downregulated in PSP patients compared to PD and healthy controls, whereas there was no significant difference in the expression of DUSP8. Interestingly, PTPRC mRNA correlated with the Movement Disorder Society Unified Parkinson’s Disease Rating Scale (MDS-UPDRS) total score and MDS-UPDRS- part III, thus indicating it might be useful as part of a biosignature to stratify patients according to disease severity and progression.

Conclusions:

Collectively, these results suggest that PTPRC expression may be useful for distinguishing PD from PSP patients as part of a biosignature. Evaluation of PTPRC along with additional biomarkers in a larger and well-characterized longitudinal study is warranted.
Winter is coming
Authors: Buckel Sonja
Published: September 2018

Grenzregimes nach dem „Sommer der Migration“. Seit etwa 20 Jahren gibt es jetzt eine genuin europäische Migrationspolitik. Der sogenannte Sommer der Migration 2015 hat die Grundlagen dieser Politik sichtbar gemacht: Die Grenzkontrollen ließen sich nur so lange aufrechterhalten, wie die Externalisierungsstrategie funktionierte. Solange also die südeuropäischen und vor allem nord- und westafrikanischen Staaten die Grenzen der EU „sicherten“. Dies endete mit dem „Arabischen Frühling“ und allem, was darauf folgte. Es kam zu einer Politisierung der Grenze und ihrer sozialen Grundlagen: der imperialen Lebensweise und der ungleichen Entwicklung in Europa. Der Artikel zeichnet die Kämpfe um die politische Neuausrichtung nach, die seitdem im Gange sind, und beleuchtet diese insbesondere anhand der neuen Europäischen Grenz- und Küstenwache (ehemals Frontex).
Mobilisierungspraxen der extremen Rechten am Beispiel von Casa Pound Italia
Authors: Becher Phillip
Published: September 2018

Italiens jüngste Inkarnation des Neofaschismus, die politische Bewegung und Partei Casa Pound Italia (gegründet 2003), wird oft als „rechte soziale Bewegung“ wahrgenommen. Casa Pounds Herangehensweise an soziale Fragen, allen voran die Wohnungsfrage, hat das Interesse gleichgesinnter Gruppen in Europa geweckt und zu Verwirrung unter antifaschistischen politischen Kräften sowie wissenschaftlichen und journalistischen Zuschauern geführt, von denen einige die Demagogie der Gruppe für bare Münze nehmen. Mit einer Methode der Ideologiekritik versucht der Artikel zu zeigen, dass die selbsternannten „Faschisten des dritten Jahrtausends“ eigentlich keine soziale Bewegung darstellen, sondern lediglich eine modernisierte Organisationsform faschistischer Provenienz, die diejenigen der politisch und wirtschaftlich Beherrschten zu sammeln sucht, die nicht mehr mit „konventionellen“ Methoden in das gesellschaftspolitische System integriert werden können, um sie als potenzielle Massenbasis gegen demokratische und soziale Kräfte und für den angestrebten Übergang zur diktatorischen Herrschaft zu vereinen.
Neue Hoffnung im Süden?
Authors: Kompsopoulos Jannis
Published: September 2018

Die linken Regierungen in Griechenland (SYRIZA) und Portugal (Partido Socialista) machten Hoffnung auf eine neue progressive Politik in Europa. Gut drei Jahre nach ihren Wahlsiegen fällt ein vorläufiges Fazit ernüchternd aus. Der Versuch, eine fortschrittliche Politik der Umverteilung und Verbesserung der sozialen Lage vieler Bürger_innen in diesen Ländern mit der Troika-Politik in Einklang zu bringen, kann als gescheitert angesehen werden. Das gilt auch für Portugal, obwohl die Entwicklungen dort positiver als in Griechenland erscheinen. Der Frage, warum zwei linke Parteien in der südeuropäischen Peripherie solch unterschiedliche Erfahrungen gemacht haben, wird im vorliegenden Beitrag nachgegangen.
Development Of Lead Free Copper Alloy Casting; Mechanical Properties, Castability and Machinability
Authors: Takateru Umeda
Published: September 2018

The regulation for the lead discharge in the environment was strengthened, in Japan, the standards 0.01 mg/I or less has been in force from April 2003. In order to meet the new standard, two technologies for reduction of lead dissolution into the drinking water have been developed in Japan; substitution of lead free copper alloys for lead bearing bronze (JIS-CAC406) and introduction of surface treatment technology. This technological trend was shortly reviewed. For development of lead free copper alloy casting, mechanical properties, castability and machinability of various lead free alloy castings were examined. Trial alloys used were commercially available ones such as the lead free bronze containing Bi, the lead free bronze containing Bi-Se, the lead free bronze containing Bi-Sb and the lead free brass containing Si. Mechanical properties of alloys were dependent on the pouring temperature and castings thickness and were generally less than those of tin bronze castings (JIS-CAC406, Cu-5 wt% Sn-5 wt% Zn-5 wt% Pb). The machinability of the lead free bronze containing Bi and Se was better than that of the lead free bronze castings containing Bi and Bi-Sb. But was still 10 to 15 % less than that of JIS-CAC406. In a lead free alloy substituted by Bi, adjustment of tin, zinc and bismuth contents was attempted and in the Bi-Se system, the adequate adjustment, for bismuth and selenium contents and also for tin, zinc and bismuth contents, was attempted. New alloy in which the mechanical properties sufficiently satisfy the standard for JIS-CAC406 is developed.
Pengaruh Desain Sambungan Las Cladding Stainless Steel 316 L pada Baja A516 terhadap Laju Korosi
Authors: Tarmizi Tarmizi , Abdullah Hafid , P. Herman
Published: September 2018

Masalah terletak pada belum diaplikasikannya proses las cladding untuk penyambungan pipa dilepas pantai. Tujuannya adalah mendapatkan ketahanan korosi yang lebih baik pada pipa dan menghemat biaya material. Dalam penelitian ini digunakan material baja A516 sebagai logam induk dengan cladding baja tahan karat 316L. Metode aplikasi pengelasan girth weld, meliputi: (1) membandingkan rancangan sambungan las bentuk groove V dengan groove Vm (modifikasi) dengan parameter las SMAW yang sama, (2) proses cladding dikerjakan dengan metode overlay SMAW. Berdasarkan hasil uji tarik disimpulkan bahwa kekuatan tarik sambungan girth weld bentuk groove V 3% lebih tinggi dari groove Vm (modifikasi). Hasil pengujian korosi pitting dalam larutan 6% FeCI3 22 ± 2 oC selama 72 jam menunjukkan bahwa laju korosi bentuk groove V lebih tinggi 153,6% daripada bentuk groove Vm (modifikasi). Harga pokok produksi pengelasan diperoleh sebesar Rp.279.996,-.
Analisis Cacat Cor pada Produk Fly Wheel Hasil Proses Pengecoran Menggunakan Cetakan Pasir
Authors: Taryaman Tatang , Roslina Roslina , Abdullah Hafid
Published: September 2018

Analisis cacat coran pada produk roda gila hasil proses pengecoran menggunakan cetakan pasir. Untuk memperbaiki cacat cor dari material besi tuang kelabu, maka dilakukan beberapa pengujian, yaitu: uji visual, pengecekan dimensi, uji metalografi dan uji mekanik. Metode pembuatan cetakan pasir menggunakan mesin double squeeze dengan variasi komposisi kadar air dan bentonit tertentu selanjutnya diteliti pengaruhnya terhadap hasil akhir produk cor. Hasil percobaan yang memberikan komposisi pasir yang optimum adalah: (a) kadar air = 4%, (b) kadar bentonit = 8,36%, (c) kuat geser (gr/cm2) = 370, (d) kuat tekan (gr/cm2) = 1.370, (e) kekerasan cetakan (N/mm2) = 19,85 – 21,4, (f) permeabilitas = 110. Berdasarkan hasil uji visual ada 7 jenis cacat coran, yaitu: (a) rongga gas, (b) pasir rontok, (c) inklusi terak, (d) penyinteran, (e) sirip, (f) kekasaran permukaan, (g) perluasan koreng. Dari pengecekan dimensi diketahui terdapat dua jenis cacat coran, yaitu: (a) pergeseran, (b) penyusutan dalam. Sedangkan hasil uji komposisi kimia dan harga kekerasan telah memenuhi standard JIS G4303 dan JIS 5501.
PERANCANGAN DAN PEMBUATAN TURBIN ALIRAN SUNGAI TIPE HORISONTAL KAPASITAS 20 KVA
Authors: Krisnadi Luky
Published: September 2018

Perancangan dan pembuatan prototip turbin aliran sungai type horizontal dengan kapasitas daya sebesar 20 KVA, merupakan langkah strategis di saat ini. Mengacu kebijakan pemerintah mengenai pengembangan energi altematif dan terbarukan dengan memanfaatkan sumber daya air, serta dilatarbelakangi guna memberikan solusi untuk daerah-daerah yang belum tersentuh oleh listrik PLN. Hasil pengujian awal prototip di dapatkan hasil keluaran sesuai dengan yang di harapkan (220V, 50 Hz), maka dengan memanfaatkan sumber daya air dengan energi potensial rendah yang tersedia dapat dimanfaatkan sebagai pembangkit listrik mikro hidro. Sehingga dapat tercipta suatu desa mandiri energi yang dapat meningkatkan taraf hidup, kesejahtraan dan edukasi masyarakat desa.
METODE PENGUKURAN PRODUKTIVITAS TENAGA KERJA DENGAN MODEL HABBERSTAND SEBAGAI UPAYA MENINGKATKAN PRODUKTIVITAS UNIT PENGECORAN PT.X
Authors: Hafid -
Published: September 2018

Masalah terletak pada rendahnya produktivitas tenaga kerja pada unit pengecoran PT. X yang merupakan salah satu produsen produk velg untuk komponen otomotif di Indonesia. Tujuan pengukuran produktivitas parsial (tenaga kerja) model Habberstad yang disesuaikan kondisi perusahaan adalah sebagai upaya meningkatkan produktivitas agar mampu bersaing di pasar global. Keunggulan dari model ini karena lengkap memperinci pengukuran produktivitas kedalam enam ukuran produktivitas, yaitu : (1) produktivitas tenaga kerja, (2) produktivitas modal, (3) produktivitas produksi, (4) produktivitas organisasi, (5) produktivitas penjualan, (6) produktivitas produk. Berdasarkan hasil analisis diketahui bahwa produktivitas tenaga kerja bulan Desember tahun 2011 (94,63) dibandingkan bulan September, Oktober dan Nopember tahun 2011 (100, 273,39 dan 342,18) adalah buruk. Metode perbaikannya, meliputi : (1) pendidikan dan latihan, (2) perbaikan rnetodemetode, (3) gaji sesuai prestasi, (4) motivasi, (5) lingkungan kerja. Bahasan ini diharapkan menjadi contoh kasus bagi pengembangan usaha industri logam mesin dalam negeri di masa mendatang.
PENYEIMBANG DINAMIK DENGAN PENDEKATAN SUDUT FASA PADA SISTEM POROS ROTOR
Authors: Wiranegara Haruman
Published: September 2018

Penyeimbang dinamik (dynamic-balancing) telah banyak diimplementasikan pada mesin-mesin yang beroperasi pada putaran tinggi, seperti turbin gas, propeller, dan sebagainya. Hal ini dilakukan karena akibat ketidaksempurnaan pada proses manufaktur menyebabkan putaran komponen menjadi tidak seimbang (unbalance) dan menimbulkan getaran yang tinggi dan resonansi pada putaran operasi, yang pada akhirnya akan mempercepat kerusakan mesin itu sendiri. Penelitian ini bermaksud mengimplementasikan penyeimbang dinamik dengan pendekatan sudut-fasa. Penelitian ini dilakukan di Laboratorium Perancangan Mesin ITB. Metode penelitian yang dilakukan melalui dua tahap, pertama memformulasikan persamaan sudut-fasa, dan kedua pengujian metode dengan menggunakan poros-rotor peraga. Hasil pengujian menunjukan metode sudut fasa cukup efektif  untuk penyeimbang dinamik pada sistim poros-rotor.
PERANCANGAN ULANG TATA LETAK FASILITAS LABORATORIUM PENGUJIAN BALAI BESAR LOGAM DAN MESIN
Authors: Dwiharsanti Mirantie
Published: September 2018

Balai Besar Logam dan Mesin (BBLM) sebagai lembaga pengujian yang ditunjuk dalam rangka pelaksanaan SNI Wajib selalu didukung dengan fasilitas mesin/alat uji.. Namun pengadaan fasilitas mesin/alat uji tidak didukung dengan perencanaan tata letak fasilitas yang baik. Mesin/alat uji ditempatkan tanpa memperhatikan fungsi mesin/alat uji. Berdasarkan masalah tersebut maka diperlukan perancangan ulang tata letak fasilitas laboratorium pengujian untuk mencapai metriks yang optimal. Penelitian ini menggunakan metode konvensional dalam melakukan perancangan ulang tata letak laboratorium pengujian. Berdasarkan analisa tata letak awal laboratorium pengujian kemudian dilakukan identifikasi fasilitas dan perhitungan luas lantai yang dibutuhkan. Setelah itu dilakukan analisa kedekatan fasilitas dengan membuat ARC (Activity Relationship Chart) dan menyusun ARD (Activity Relationship Diagram). Berdasarkan ARD kemudian dibuat template tata letak fasilitas laboratorium pengujian. Tata letak laboratorium pengujian disusun berdasarkan process layout dan product layout. Fasilitas yang disusun berdasarkan process layout adalah fasilitas pengujian kekerasan, spektrometer, struktur mikro dan makro, UTM, Impak, dan perparasi sampel. Sedangkan  fasilitas yang disusun berdasarkan product layout adalah pengujian sepeda, kompor, dan regulator.
Desigualdades del ingreso en Colombia: ¿cuáles son sus determinantes y cómo se han afectado por la pandemia del Covid-19?
Authors: Galvis-Aponte Luis Armando , Bonet-Morón Jaime , Bonilla-Mejía Leonardo , Otero-Cortés Andrea Sofía , Pérez-Valbuena Gerson Javier , Posso-Suárez Christian Manuel , Ricciulli-Marín Diana Carolina
Published: September 2018

Con el objetivo de avanzar en el diseño y formulación de políticas públicas que reducir la desigualdad de ingresos en Colombia, este documento estudia los determinantes de los cambios en la desigualdad de ingresos laborales y no laborales desde una perspectiva microeconómica. El estudio se lleva acabo para el total nacional y las veintitrés principales ciudades y sus áreas metropolitanas. Además, teniendo en cuenta que la coyuntura del COVID-19 ha dejado consecuencias inesperadas en la economía, el documento incluye un análisis sobre los cambios en la distribución del ingreso en 2020. Específicamente, se realizan simulaciones que incorporan choques a variables agregadas del mercado laboral por ciudades, permitiendo entender los canales a través de los cuales la crisis del COVID-19 ha afectado la distribución de ingresos. Se emplea una metodología de micro-descomposición siguiendo a Bourguignon y Ferreira (2005), haciendo comparaciones de cambios en la distribución del ingreso a través del tiempo. Los resultados muestran que, en las reducciones de la desigualdad, los componentes laborales desempeñan un papel fundamental. Esa reducción se debe en gran medida a cambios en los retornos a la educación y en el capital humano acumulado. En el componente del ingreso no laboral hay una participación importante de las transferencias y los arriendos, que en la mayoría de los casos actúan como elementos igualadores. Finalmente, con respecto a la coyuntura de la pandemia del COVID-19, se encuentra un importante retroceso en las desigualdades que está explicado principalmente por el deterioro de variables del mercado laboral.
Development of full spectrum analysis (FSA) to analyze the gamma backscattering on concrete
Authors: Luong Tung Thanh , Do Vien Trong , Huynh Chuong Đinh , Nguyen Da Thi My , Tran Tuyet Kim , Nguyen Linh Thi Truc , Truong Loan Thi Hong , Le Hao Cong , Trinh Lang Hoa
Published: September 2018

Full spectrum analysis, FSA, has been being widely used for the identification in environmental radioactive. In this work, firstly, FSA is developed to analyze the gamma backscattering spectrum on concrete to determine the component densities. The concrete samples are mixed of Portland cement, sand, gravel and water in the different proportions. The experiments are carried out by the radioactive source Cs137 (0.5mCi) and the detector NaI(Tl) 2 inch x 2 inch. The obtained results show that FSA would be a good approach to analyze the gamma backscattering on concrete.
Investigation of the liquid density using Gamma scattering technique
Authors: Vo Kien Thach Trung , Hoang Tam Duc , Vo Nguyen Hoang , Huynh Chuong Dinh , Tran Thanh Thien , Chau Tao Van
Published: September 2018

In this work, a gamma scattering technique using 137Cs (5mCi) source with the NaI(Tl) detector is arranged to record the scattered photon beam at scattering angle of 1200 for investigating the liquid density. We used standard liquid such as water, H2SO4, HCl, glycerol, HNO3, ethanol and A92 petrol to fit the single scattering peak, multiple scattering, and total counts versus standard liquid densities. The interpolating of the single scattering peak, multiple scattering, and total counts of the testing sample at scattering angle of 1200 is 0.702 g.cm-3, 0.783 g.cm-3, and 0.747 g.cm-3, respectively. The discrepancy of the experiment and true testing density is about 8 %, 3 %, and 2 %, respectively. The result shows that multiple scattering or total counts can be used to propose the density measurement.
Ultrasound-accelerated arylthiomethylation of indole via multicomponent reaction in water catalyzed by acetic acid
Authors: Luu Thi Thi Xuan , Pham Vinh Quang
Published: September 2018

Multicomponent reactions (MCRs) play an important role to create the molecular complexity in a one-step process. Based on the mechanism and process of Mannich-type reactions in the synthesis of Grammin, arylthiomethylation reactions of indole were performed by using three components: indole, p-thiocresol and a solution of formaldehyde (36%) under two activation conditions, e.g. magnetic stirring and ultrasonic irradiation. The main product, 3-(p-tolylthiomethyl)-1H-indole, was obtained in a moderate yield (54%) under short irradiation (40 minutes) by probe sonicator.
Influence of plant growth regulators on the rapid propagation buds of Dendrobium officinale Kimura et Migo
Authors: Le Diem Thi , Vo Mai Thi Bach
Published: September 2018

Dendrobium officinale Kimura et Migo has been known for a long time as a precious orchid, which is used for medicine and functional foods that are widely commercialized in the world. The nodal explants could be obtained in high efficiency, good quality and uniform seedlings on multiplication vegetative in vitro. They can be propagated in large quantities in a short time. The studied results showed that the nodal explants grew on MS medium + 10 % coconut milk + 25 g sucrose + 0.5 mg/L BA + 6 g agar/ liter create high buds. This buds were used to A B 1 cm 1,5 cm create bud clusters with the aim of improving in vitro vegetative. The best bud culture medium for the formation of clusters was MS + BA 2.0 mg/L + NAA 0.4 mg/L; MS + kinetin 1.5 mg/L + NAA 0.3 mg/L; MS + TDZ 2.0 mg/L + NAA 0.4 mg/L; MS + adenine 1.5 mg/L + NAA 0.3 mg/L. However, the addition of kinetin or TDZ to the culture medium needed a steps to extend the bud subculture after 45 days in culture. The best medium for the rooting is MS + NAA 0.5 mg/L.
Distribution of butyltin species in sediment samples collected from Saigon habours in Ho Chi Minh city
Authors: Nguyen Dong Van , Ngo Quang Xuan
Published: September 2018

In this study, the distribution of tributyltin (TBT) and its degradation products, dibutyltin –DBT and monobutyltin – MBT in sediment sample collected adjacent Saigon habours was studied using gas chromatographic separation/ mass spectrometric detection. Sediment samples at 12 sites along the Saigon river were taken during dry and raining seasons in 2014 and 2015. Butyltin species were extracted from sediment matrix using HBr-tropolone into dichloromethane followed by ethylation with NaB(C2H5)4 in hexane. The reliability of the analytical method for butyltin species was evaluated by the use of the certified reference BCR-646 material. The concentrations of TBT, DBT and MBT in sediment samples were <0.1–2.81 ng/g, <0.1–4.3 ng/g and <0.2–8.4 ng/g (as Sn, dw). Butyltin species in sediment samples at sites within the habour area were higher than those at sites far upstreams or down-streams of the habours. Low values in TBT/(DBT+MBT) ratios revealed that the discharge of TBT from fouling paint was low at recent years.
Evaluating the salt resistance of Arabidopsis thaliana induced by plant growth-promoting rhizobacteria (PGPR) isolated from Can Gio mangrove forest
Authors: Ngo Trinh Le Phuong , Chu Thanh Nguyen , Chu Thanh Nguyen , Hoang Minh Thi Thanh
Published: September 2018

As soil salinization is a major concern of modern agriculture and an expected threat in climate change scenarios, special effort will be required for maintaining crop production under salt stress. The use of plant growth-promoting rhizobacteria (PGPR) is a promising agricultural practice to help less salt tolerant crops to maintain an acceptable level of productivity under higher salt concentrations. Here, we have isolated the PGPR from the rhizosphere soil in Can Gio Mangrove Forest, Vietnam. Fifteen isolates of bacteria were successfully isolated on medium containing 10 % NaCl. Subsequently, to investigate the effects of PGPR isolates on the growth of Arabidopsis thaliana, seeds were treated with the PGPR and observed the germination as well as the seedling growth. Under stress condition, all bacteria inhibited the germination, however, 02NP01, 04PP02 and 06NS01, identified as Bacillus thuringiensis, Vibrio and Halomonas elongata, respectively, could promote Arabidopsis thaliana seedling growth compared to the control. Further analysis found that three bacteria exhibited the ability to fix nitrogen, solubilize inorganic phosphorus and produce phytohormone-auxin. In addition, under normal condition, Bacillus and Vibrio significantly increased A. thaliana germination, after treatment with Bacillus and Vibrio the seed germination rate increased by 36.60 % and 69.76 % respectively compared to the control. Our research shows that isolated potential rhizobacterial strains may be used as an effective tool for enhancing Arabidopsis thaliana seedling growth under salinity stress.
Metal transporter encoding gene families in Fabaceae: II. Cation/H+ exchanger (CAX) encoding genes
Authors: Cao Bang Phi , Le Anh Thi Van
Published: September 2018

The plant CAtion/H+ eXchangers (CAX) proteins belong to Ca2+/cation antiporter (CaCA) superfamily. By using in silico methods, the CAX encoding genes in the genome of six legume species have been identified in this work. In examined legume genomes, the CAX genes belong to a small multigenic family. The number of the CAX genes in these legume species is 17 (soybean), 6 (common bean and C. cajan), 5 (M. truncatula and C. arietinum) and 3 genes (L. japonicus), respectively. The legume CAX genes vary in genomic full-length ranging from 1,213 to 11,561 base pairs. All of the genes exhibit introns (from 4 to 11 introns). Their deduced full-length protein sequences range from 248 to 718 amino acids. Theoretical pI values of most (39/42) of legume CAX proteins were less than 7. The secondary structure modelling of protein exhibit transmembrane helix region (from 3 to 11 regions). Half of all (23/42) included 11 transmembrane helix regions. Based on phylogeny analysis, all of the legume CAX were divided into two groups, A and B, each consisting of two subgroups. The phylogeny suggested an ancient gene duplication in the genome of legumes ancestry. The recent gene duplication even was only detected in the soybean genome after the speciation. The expression analysis showed that all of 3 L. japonicus CAX genes expressed in all examined tissues. However, the expression of C. cajan CAX genes was not detected. For each of 4 remaining legumes, the CAX genes were differed in their expression level depending on studied tissues. The tissue-specific expressions of some CAX genes were observed in 5 out of the 6 legume species, except C. cajan.
Preliminary analysis on the biodiversity in An Hoa estuary, Nui Thanh district, Quang Nam province
Authors: Ngo Nam Xuan
Published: September 2018

Our surveys in An Hoa area, Nui Thanh district, Quang Nam province in November 2016 and April 2017 recorded 185 animals and plants species. Phytoplankton: 22 species, Tracheophyta: 27 species, Zooplankton: 19 species, Zoobenthos: 29 species, Fish: 56 species, Amphibia and Reptilia: 8 species, Bird and Mammalia: 24 species,; There are 3 ecosystems. Aquatic resources and abundant species include some species of Epinephelus moara (Temminck & Schlegel), Epinephelus coioides (Hamilton), Crassostrea rivularis Gould, Panulirus spp., Portunus spp. and Sipunculus sp.
The effect of the diameter of the detector collimator on saturation thickness in gamma scattering measurement
Authors: Huynh Chuong Dinh , Vo Nguyen Hoang , Le Trang Thi Ngoc , Nguyen Linh Thi Truc , Tran Tuyet Kim , Tran Thanh Thien
Published: September 2018

The effect of the diameter of the detector collimator on the saturation thickness in gamma-scattering measurements is studied using the spectrum of singly scattering. Geometric arrangement of gamma-scattering measurement includes: a gamma-ray collimated beam with the energy of 662 keV emitted from 137Cs source is irradiated on a rectangular aluminium target with incident angle of 90o, and detector NaI(Tl) 5.1cmx5.1cm with collimator is used to record the scatterd gamma rays at scattered angle of 120°. The experimental measurements are carried out to obtain scattered spectra with various target thickness and diameter of detector collimator. The profile of the singly scattering and multiply scattering in the scattered spectra are determined by a spectrum processing technique based on the least squares fitting. The experimental results showed that the saturation thickness of the counts of singly scattering increases with increasing the window diameter of the detector collimator. These results will support for the non-destructive testing research of application of gamma-scattering method to determine the thickness or the defect of the sample.
Effects of benzyladenine and α-naphthaleneacetic acid on the early growth phase of Ananas comosus (L.) Merr.
Authors: Le Ut Van , Vo Mai Thi Bach
Published: September 2018

In this study, benzyladenine (BA) and α- naphthaleneacetic acid (NAA) are used to study the growth of pineapple fruit (Ananas comosus (L.) Merr.) in the early growth phase. Pineapple fruits are sprayed with BA or NAA at different concentrations (1, 5, 10, 20, 40 and 60 mg.L-1) at both 0 and 3 days after flowering (DAF, 50 % dried flowers). Fruits are sampled every 15 days from 0 to 75 days to survey to weight, size and qualities of pineaple fruit. Besides, fruits (which are sprayed with BA or NAA at concentration 20 mg.L-1) are sampled at 15 days for the cell size observation. The results showed that the treatments with three highest concentration of BA or NAA (20, 40 và 60 mg.L-1) significantly increased fruit weights and fruit sizes. Exogenous BA or NAA at the concentration 20 mg.L-1 increased the fruit weights by increasing the number of flesh cells without negative effects on fruit qualities.
Evaluating the efficiency of red mud material in removing NO2 gas
Authors: Ho Linh Nhut , To Hien Thi
Published: September 2018

The way of using red mud - a hazardous substance created from the producing of aluminum hydroxide in removing NO2 gas is perfectly suitable with sustainable development of society in the future. This study focuses on estimating the efficacy of two different materials on treating NO2 gas: pure red mud material (non-neutralised by seawater - RM1) and hydrotalcite material created from red mud with the participant of the seawater (Seawaterneutralised red mud - RM2). Experiments were made to survey the treating ability through various factors: concentrations of input NO2 gas, flow speed of NO2 gas pass through materials, mass of materials, temperature of material used in experiments and saturated time of materials have also been tested. The results showed that seawater-neutralised red mud and red mud material were potent in the NO2 adsorption. However, RM2 material had the higher treating ability of NO2 gas than RM1 about 5 %. The result showed that optimal conditions were determined at concentrations of input NO2 were 303–397 ppm, flow speed of NO2 gas pass through materials was 0.4L/min, 10 g mass of materials, temperature of material was 30 oC. The efficiency of treating NO2 gas of RM1 and RM2 are 89.50 % and 84.43 %, respectively. The results of this study showed that both seawater-neutralised red mud and red mud have the potential to remove NO2 gas.
Preparation of chitosan microspheres by emulsion crosslinking method for biomedical application
Authors: Tu Anh Thi Tram , Le Hieu Van , Ha Huy Duc
Published: September 2018

The emulsion crosslinking method using glutaraldehyde as a crosslinking agent was exploited to prepare chitosan microspheres. Effects of preparation factors such as homogenization speed, oil/emulsifier ratio (O/E), oil/water ratio (O/W), crosslinker concentration on the structure of products were investigated. Structure and morphology of the obtained products were determined by Fourier transform infrared spectroscopy (FT-IR), Trasmission Optical Microscope systems (TOM), and Dynamic Laser Scattering analysis (DLS). The results indicated that the obtained products were spherical in shape. The average diameter of chitosan microspheres decreased with the increase of homogenization speed, O/W ratio, crosslinker concentration or decrease of O/E ratio. When homogenization speed is 6000 rpm, O/E =1.5, O/W=15, and molar ratio of chitosan to glutaraldehyde R=1, the average diameter of the chitosan microspheres was about 2.40 μm with a narrow size distribution. Chitosan microspheres are able to be used as a polymer matrix for targeted drug delivery systems due to their pH-responsive property.
Some compounds isolated from leaves of Lumnitzera racemosa growing in Vietnam
Authors: Nguyen Phuong Hoai , Nguyen Thuy Thi Le , Nguyen Duc Trung , Nguyen Mai Thi Thanh , Nguyen Phung Kim Phi
Published: September 2018

From L. racemosa leaves eight compounds were isolated: myricetin (1), quercetin (2), myricetin 3-O-α-L-rhamnopyranoside (3), myricetin 3-O-(2"-O-galloyl-α-L-rhamnopyranoside) (4), myricetin 3-O-(3"-Ogalloyl-α-L-rhamnopyranoside) (5), 3-Omethylellagic acid (6), (3S,5R,6S,7E)-3,5,6- trihydroxy-7-megastigmen-9-one (7) and gallic acid (8). Their chemical structures were unambiguously elucidated by analysis of 1D and 2D NMR and high resolution ESI mass spectroscopic data, as well as by comparison with those reported in the literature. The α- glucosidase inhibition was evaluated on isolated compounds. Among them, 1, 4, 5, 6 and 8 exhibited good activities with the IC50 values in the range of 1.3-19.3 µM.
Spectrum sensing in cognitive radio wireless networks for orthogonal freqnency division multiplexing in additive white Gaussian noise channel
Authors: Nguyen Tri Minh , Nguyen Tu Thanh , Nguyen Phuong Huu
Published: September 2018

Cognitive radio (CR) systems are one of the most interesting topics in recent years. They would enable more efficient use of the spectrum. The main problem of CR is how to dectect exactly the spectrum usage of primary users. There are many ways to do this, such as energy detector (ED), Axell’s detector, the sliding window detector, etc. Among them, cyclostationarity (CS) based dection methods attracted much attention because of their better results in low-SNR regimes. This paper will propose a method based on the autocorrelation property of orthogonal frequency division multiplexing (OFDM) signals in additive white Gaussian noise (AWGN).
Afetler Karşısında Toplum Dirençliliği
Authors: VAROL Nehir , BULUŞ KIRIKKAYA Esma
Published: September 2018

Afetler günlük yaşamı alt
üst eden, can ve mal kayıplarına yol açabilen, insan çevre arasındaki dengenin
bozulmasına neden olan olaylardır. Doğal ya da teknolojik tehlike, risk ve
kırılganlık ile birleştiğinde yıkıcı afetler meydana gelebilir. Son yıllarda,
ekonomik, sosyolojik, çevresel ve fiziksel kırılganlıkların artmasıyla
özellikle gelişmekte olan ülkelerde, afetler daha sık yaşanmaya başlamıştır.
ISDR 2015 raporuna göre; dünyada afetlerden kaynaklanan maddi hasarın yıllık
ortalama 314 milyar ABD dolarına ulaştığı tahmin edilmektedir. Son 10 yılda
sadece meteorolojik kökenli afetlerin sayısı % 14 oranında artmıştır .
Afetlerin olası etkilerini azaltmak; ancak başarılı bir afet risk yönetimi ve
toplumun afetlere karşı direncinin artırılması ile mümkün olabilecektir.
Toplumda afetlere karsı direnç az, zarar görebilirlilik /kırılganlık fazla ise,
afet oluşumu ve afetlerin olası etkilerine maruz kalmak kaçınılmaz olur. Bu
makalede afet dirençliliği kavramı irdelenmiş ve UNISDR tarafından gündeme
getirilmiş olan HFA ve Sendai Eylem planları çerçevesinde, toplumda afetlere
karşı direncin artırılması için yapılabilecek çalışmalar değerlendirilmiştir.
Afet Zararlarının Azaltmasında Toplum Tabanlı Gözlemsel Mahalle Tehlike Analizi Eğitimi: Kocaeli Örneği
Authors: GERDAN Serpil , ÖZDEMİR Ahmet
Published: September 2018

Individuals who form a society should be
assessed part of disaster management before, during and after disaster and they
must be brought to the top level of knowledge and skill to managing of
disaster. This article explains the practices of observational neighborhood
hazard analysis training that is part of "Kocaeli Neighborhood Disaster
Preparedness Training" project. This project is carried out jointly by
Kocaeli University, Kocaeli Provincial Disaster and Emergency Directorate and
Kocaeli Metropolitan Municipality. Until now, 3 training were organized and 415
neighborhood disaster volunteers including clergyman, teachers and local local community
representatives were trained in project. Increasing the community's sensitivity
to disaster mitigation is one of the most important parts of a successful
disaster management. The purpose of this practice, called Observational
Neighborhood Hazard Analysis, is to enable residents to act on the solution by
ensuring that they are aware of the current situation of disaster risks in
their settlements. This practice is recommended as an important method for
decision makers in disaster mitigation that the individuals are a solution
stakeholder rather than disaster victims.
Okul Tabanlı Afet Eğitimi
Authors: ÖZMEN Bülent , İNCE Zeynep Didem
Published: September 2018

“School Based Disaster Education Project” was
signed between Ministry of National Education and Japan International
Cooperation Agency (JICA), to dissemination of disaster education and to
effectively conduct studies for minimizing disaster damages; and total of 80
pilot schools were chosen from 8 provinces (İstanbul, Bursa, Balıkesir,
Çanakkale, Kocaeli, Sakarya, Tekirdağ ve Yalova) of Marmara Region and from
Düzce and Bolu. Roles of three working groups established was defined to be
conducting and dissemination of the project, comparing training programs of
Japan and Turkey, and redefining Disaster and Emergency Plans and applying the
same more effectively, respectively for group one, group two, and group three.
Within the scope of the project four books, namely “Basic Disaster Knowledge”,
“Disaster Education (Theory and Practice)”, “Guidebook for School Disaster and
Emergency Management Planning”, and “Training Evaluation Method” were prepared,
and these books were delivered to several schools, pilot schools in the pilot
provinces being in the first place. Our objective is to give information on the
studies and activities conducted, books prepared, and results obtained within
the scope of the project, and to contribute to the studies to be conducted with
this perspective.
4D-QSAR study of flavonoid derivatives with MCET method
Authors: TÜRKMENOĞLU Burçin , YİLMAZ Hayriye , SU Ekrem Mesut , ALP TOKAT Tuğba , GÜZEL Yahya
Published: September 2018

The Molecular Conformer Electron Topological (MCET) method was performed for the identification of the pharmacophore (Pha) group and predicting inhibitory activity of 42 flavonoid ligands on gamma-aminobutyric acid/benzodiazepine receptor complex (GABAA/BZR). In this method, Electron Topological Matrix (ETM) was used to visualize 3D structural descriptors. Multiple comparisons of ETM matrices for all flavonoid compounds allow us to define Pha-structure. Genetic algorithm (GA)- Partial Least-Squares (PLS) methods were performed to construct QSAR model and to select most important descriptors of the training set (32 compounds) and test set (10 compounds). The GA-PLS based model showed good results, q2 = 0.808 and r2test = 0.775 with high internal and external validation. The developed model can help to understand the inhibitory mechanism.