bluuebunny/crossref_metadata_2025 huggingface dataset:
Penggunaan Media Gambar Untuk Meningkatkan Ketrampilan Menulis Karangan Deskripsi Pada Siswa Kelas VII SMP Negeri 2 Petarukan
Authors: Khotimah Khusnul
Published: May 2018

Tujuan   penelitian   ini   adalah   mendeskripsi   kemampuan   menulis karangan deskripsi antara kelompok yang diajar menggunakan media gambar dan kelompok yang diajar tanpa menggunakan media gambar pada siswa kelas VII SMP Negeri 2 Petarukan Pemalang, mendeskripsi perbedaan kemampuan kelompok yang diajar menggunakan media gambar dan kelompok yang diajar tanpa menggunakan media gambar pada siswa kelas VII SMP Negeri 2 Petarukan Pemalang, dan mendeskripsi keefektifan penggunaan media gambar dalam pembelajaran menulis karangan deskripsi pada siswa kelas VII SMP Negeri 2 Petarukan Pemalang. Teknik  pengambilan  sampel dalam penelitian ini dilakukan dengan teknik simple random sampling. Sampel dalam penelitian ini yaitu kelas VII A sebagai kelompok kontrol dan kelas VII B sebagai kelompok eksperimen. Teknik pengambilan data yang digunakan adalah tes. Teknik analisis data menggunakan uji t-non independen dan uji t independen. Hasil penelitian menunjukkan bahwa terdapat perbedaan kemampuan menulis karangan deskripsi antara kelompok  yang diajar menggunakan  media gambar dan kelompok yang diajar tanpa menggunakan media gambar. Hasil thitung kelompok eksperimen adalah 22,06 dan hasil thitung kelompok kontrol adalah13,81. Kelompok eksperimen mendapatkan hasil thitung   yang lebih tinggi dari kelompok kontrol. Penggunaan media gambar dalam pembelajaran menulis karangan deskripsi lebih efektif   jika dibandingkan dengan tanpa menggunakan media gambar. Hal ini dapat dibuktikan dari hasil perhitungan uji t independen thitung sebesar 5,27 > ttabel 2,00. Berdasarkan hasil penelitian maka disarankan kepada siswa untuk meningkatkan minat dan kemampuan menulis, karena menulis merupakan salah satu dari empat keterampilan berbahasa yang perlu untuk dipelajari dan dikuasai. Pihak guru hendaknya lebih berpikir inovatif dan kreatif dalam membuat atau memilih  media  pembelajaran  yang  tepat  agar  dapat  menarik  perhatian  siswa dalam   kegiatan   pembelajaran,   sehingga prestasi   belajar   siswa   juga   akan meningkat.
Peningkatan Motivasi Dan Hasil Belajar Mata Pelajaran Penjasorkes Materi Permainan Bola Voli Melalui Model E’i Berbantuan Gadis Desa Pada Siswa Kelas VII G SMP Negeri 2 Balapulang Semester Ganjil Tahun Pelajaran 2016/2017
Authors: Winarko W.
Published: May 2018

Rumusan masalah pada penelitian ini adalah apakah penggunaan model pembelajaran E’I Gadis Desa, dapat meningkatkan : 1) motivasi belajar, 2) dapat meningkatkan hasil belajar, dan 3) memiliki kendala-kendala apa yang dihadapi selama pembelajaran berlangsung.Penelitian tindakan kelas ini dilakukan dalam dua siklus. Hasil siklus I motivasi sebesar 61,11 %, siklus II sebesar 76,72 % berkategori baik. Peningkatan motivasi siswa diikuti dengan peningkatan hasil belajar siswa pada siklus I diperoleh prosentase siswa tuntas belajar 61,11 % (22 siswa tuntas) dan pada siklus II diperoleh prosentase siswa tuntas belajar sebesar 86,11 % (31 siswa tuntas).
The Effect of â€œNumbered Heads Togetherâ€ vs â€œThree Minutes Reviewâ€ on Studentsâ€™ Vocabulary Mastery
Authors: Rokhuma Chubbi Millatina
Published: May 2018

AbstrakTujuan dari penelitian ini adalah untuk menginvestigasi pengaruh teknik Numbered Heads Together dan Three Minutes Review terhadap penguasaan kosa kata siswa. Penelitian ini menggunakan pendekatan kuantitatif dengan factorial design. Â Penelitian ini juga melibatkan para siswa kelas 7 SMP Islam Simbang Wetan Pekalongan yang dipilih melalui teknik purposive sampling. Kelas 7A dianggap sebagai grup eksperimen, sedangkan kelas 7B dianggap sebagai grup kontrol. Dalam hal ini, grup eksperimen diajar dengan menggunakan Numbered Heads Together, sedangkan grup kontrol diajar dengan menggunakan Three Minutes Review. Metode pengumpulan data yang digunakan dalam penelitian ini adalah observasi, angket, dan tes. Berdasarkan perhitungan hasil penelitian, diperoleh bahwa Ftabel = 4.26 dan Fhitung = 17.39. Karena Fhitung > Ftabel, jadi Ho ditolak dan Ha diterima. Dapat disimpulkan bahwa ada perbedaan yang signifikan antara nilai post tes dari grup eksperimen dan pos tes dari grup control. Dengan kata lain, Numbered Heads Together lebih efektif dari pada Three Minutes Review dalam pengajaran kosa kata untuk anak-anak yang berkemampuan tinggi dan rendah.Kata Kunci: numbered heads together, three minutes review, penguasaan kosa kata
Prioritized: That ghetto dude from Malvern
Authors: Rajeswaran Dargine
Published: May 2018

Malvern, a neighbourhood in Toronto, Ontario, was turned into a designated area for affordable housing during its transformation into a modern community in the late 20thcentury. Any positive connotation that was once attached to ‘affordable housing’ as an idyllic space for hard-working residents quickly disappeared, however, and Malvern has repeatedly been labeled one of Toronto’s most dangerous neighbourhoods, in dire need of improvement. In this essay, I borrow from Omi and Winant (2015) to argue that the neighbourhood of Malvern is a racial project – that is, Malvern’s representations assign meaning to race, created not only through racist and classist planning, but also through the ways that Malvern is shared in the larger public, through media representations of Malvern, and the complex experiences and realities of its residents. Populated almost entirely by visible minorities, the mapping of criminal deviance alongside racialized individuals has ensured that Malvern and its residents continue to be marred by stigma and stereotypes, leaving residents feeling conflicted with internalized and arguably perverse understandings of themselves, and without the necessary support that disadvantaged neighbourhoods should receive. Today, Malvern is the product of purposeful, structural violence, with the people of Malvern perceived as lacking the civility to maintain the ideal space that was created for them. Using the work of Henri Lefebvre, this paper provides a detailed analysis of the way that Malvern was conceived and perceived to exist and the way that it continues to be lived as a racial project. Malvern, like other inner-city neighbourhoods in North America, has remained at a disadvantage since its inception. In this essay, I explore how the perception of Malvern came to be and how first-hand experiences within Malvern’s borders differ from those which are negatively portrayed in the media.
BOOK REVIEW: Afro-Atlantic Flight: Speculative Returns and the Black Fantastic, by Michelle D. Commander (2017). Durham, NC: Duke University Press.
Authors: Carey R. Scott
Published: May 2018

Book review of Michelle D. Commander's (2017) Afro-Atlantic Flight: Speculative Returns and the Black Fantastic.
PHARMACOGNOSTIC, PHYTOCHEMICAL ANALYSIS AND ANTI DIABETIC ACTIVITY OF DRIED LEAVES OF ABRUS PRECATORIUS – AN IN VIVO APPROACH
Authors: Boggula Narender , Elsani Madan Mohan , Kaveti Vamshi Sharathnath
Published: May 2018

Diabetes mellitus is among the most common disorder in developed and developing countries, and the disease is increasing rapidly in most parts of the world. It has been estimated that up to one-third of patients with diabetes mellitus use some form of complementary and alternative medicine. The medicinal plants refer to the plants extracts of different parts (leaves, seeds, roots, fruits etc.) which are used in the treatment of various diseases of humans, animals and plants. So, the study was carried out to ascertain the anti diabetic properties present in different extracts of dried scale leaves of Abrus precatorius. The present study is an attempt to highlight the anti diabetic activity as well as phytochemical and pharmacological reports on Abrus precatorius and calls for better-designed clinical trials to elucidate possible therapeutic effects on diabetes. The in-vivo studies on the chloroform leaves extract of Abrus precatorius revealed the presence of significant anti diabetic activity. Therefore, it can be used as a source of natural anti diabetic and used in drug formulations for treatment of diseases.
THE RELATIONSHIP BETWEEN MAIN POLYPHENOL COMPONENTS AND FREE RADICAL SCAVENGING ACTIVITY OF SELECTED MEDICINAL PLANTS
Authors: Dagnon S. , Bojilov D. , Docheva M. , Edreva A.
Published: May 2018

This study investigates the relationships between the main polyphenols and DPPH radical scavenging activity (RSA) in extracts from some of the most common wild and cultivated species from the Achillea millefolium group, Mentha, Chenopodium botrys, Clinopodium vulgare and Artemisia vulgaris. Another aspect of the study is the effects of choosing an extraction solvent, highlighting the importance of selecting an appropriate one for obtaining extracts with maximum manifested bioactivity. Chemical characterization of compounds is performed. It is based on HPLC-PDA fingerprint profiles, obtained from 70% aqueous methanol extracts. Hydroxycinnamic acids, glycosides of luteolin (LG), apigenin (AG), their aglycones and methoxyflavones are found to be the most abundant components, which have the highest impact on radical scavenging activity (RSA) of the extracts. The data allow supposing high correlation relationships between caffeoylquinic acids and RSA of extracts from four A. millefolium group species and cv. Proa. Cl. vulgare methanol extract, rich in rosmarinic acid, LG and AG, showed the highest RSA with IC50 10.37μg.mL-1. In contrast, extracts of Ch. botrys which lack phenolic acids, contain low amount of glycosides and are rich in methoxyflavone aglycones, possess very weak RSA. For multicomponent analysis, our data suggest 70% methanol as the most appropriate solvent for extraction of compounds belonging to the polyphenol complex. Based on the high quantities of rosmarinic acid, luteolin and apigenin glycosides, 66% ethanol solvent is found to be the best choice for medicinal consumption extracts.
Bazı makrohalkalı tiyocrown eterlerin polifenol oksidaz enzimi üzerindeki inhibisyon etkilerinin araştırılması
Authors: ERGÜN Adem , ÇİÇEK Baki
Published: May 2018

Polifenol oksidaz (PPO) enzimi, meyvelerde, sebzelerde ve bazı hayvansal dokularda bolca bulunabilen, aktif bölgesinde bakır olan bir metalo enzimdir.  Enzimatik esmerleşme reaksiyonlarını katalizleyen bu enzimin, ticari değere sahip ürünlerde bolca bulunmasından dolayı inhibisyonu oldukça önem kazanmıştır.  Bunun için literatürde birçok çalışma mevcuttur.  Bu çalışmada, PPO enzimi, amonyum sülfat çöktürmesi ve diyaliz gibi ön saflaştırma işlemlerinden sonra, Sepharose 4B-l-tirozin -p-aminobenzoik asit afinite kromatografi jeli kullanılarak, Musa sapientum var. Cavendishii (Muz) meyvesinden saflaştırılmıştır.  Enzimin saflık kontrolü de SDS – PAGE ile yapılmıştır.  Daha sonra, bizim tarafımızdan esterleşme – halka kapama reaksiyonu sonucunda sentezlenen AE1, AE2 ve AE3 kodlu makrohalkalı tiyocrown eterlerin, saf olarak elde ettiğimiz polifenoloksidaz enzimi üzerindeki inhibisyon etkileri araştırılmıştır.  Tüm maddelerin PPO enzimini inhibe ettiği saptanmıştır.  Sonuçlara göre en etkili inhibitör AE3 olarak tespit edilmiştir. 
In Memoriam: Zelia Campbell
Authors: VanWyk Jo-Ansie Karina
Published: May 2018

Memorium
Unrest and Violence: 2016
Authors: Du Plessis Willemien , Pienaar Juanita M , Koraan Rene , Stoffels Myrone , Olivier Nic
Published: May 2018

The most important measures and cases pertaining to crime statistics, truth and reconciliation security services, arms and ammunition, terrorism and corruption are discussed.
The Relations Between Unemployment and Entrepreneurship in Turkey: Schumpeter or Refugee Effect?
Authors: APAYDIN Şükrü
Published: May 2018

The main purpose of this study is to determine the relations between unemployment and entrepreneurship in Turkey. Thus, it is empirically investigated whether the effects of Schumpeter and Refugee are valid or not. In the study, the Autoregressive Distributed Lag – ARDL method was adopted and Turkey’s 2000-2016 period data were used. The results of estimation show that there is an inverse relationship between entrepreneurship and unemployment. Accordingly, when the rate of entrepreneurship increases, unemployment decreases or vice versa. Causality is from entrepreneurship to unemployment. In other words, the while the Schumpeter effect is valid, it is concluded that the Refugee effect is invalid.
The Consequences of Crisis After 80’s to Turkey’s Economy
Authors: TURAN Zübeyir
Published: May 2018

Financial crisis is defined as sharp fluctuations of prices and quantities, occurring in financial markets reflecting as drastic economic problems with payments defaults in the banking sector, which in no way is impendent from each other. Crisis in one sector contaminates other sectors within small time intervals, which initially seems to be in periods. Many financial criseshave occurred in the world since the 1970s. Although, a turning point like 1990‟s affected most countries leading to economic instability. Like in the past, most developing countries are not similar in terms of their socio-economic structure, on the other hand financial crises witnessed show several similarities. These financial crises, enlarged with the panic observed in the international investment markets, complemented with speculative attacks has diverged the financial capital flow among countries. Unemployment figures of the world have risen at the point of crisis in the end of 2008. As a result of the contraction in the foreign trade due to the crisis, the Gross Domestic Product of our country has been declining in great proportions. The effect of the crises on our country's economy has been examined in the study.
Studi Komparatif Hasil UKBI Mahasiswa Jurusan Bahasa Indonesia Perguruan Tinggi Negeri dan Swasta di Jawa Timur
Authors: Winiasih Tri
Published: May 2018

Penelitian ini bertujuan untuk mendeskripsikan kemampuan berbahasa Indonesia mahasiswa di perguruan tinggi negeri dan swasta di Jawa Timur. Masalah yang dibahas adalah perbandingan nilai UKBI Seksi I (Mendengarkan), Seksi II (Merespons Kaidah), Seksi III (Membaca), serta skor kemahiran berbahasa Indonesia secara keseluruhan. Penelitian ini merupakan penelitian kuantitatif deskriptif. Data diperoleh dari laporan hasil UKBI 3 perguruan tinggi negeri dan 3 perguruan tinggi swasta di Jawa Timur yang memiliki jurusan pendidikan bahasa Indonesia dan menjadikan UKBI sebagai alat ukur untuk mengetahui kemahiran berbahasa Indonesia mahasiswanya. Hasil penelitian menunjukkan, berdasarkan skor UKBI, nilai rata-rata seksi I, II, III, dan skor UKBI keseluruhan mahasiswa perguruan tinggi negeri lebih tinggi daripada perguruan tinggi swasta. Berdasarkan predikat UKBI, nilai rata-rata mahasiswa bahasa Indonesia perguruan tinggi negeri dan swasta berada pada predikat yang sama, yaitu unggul.
Respons Verbal Anak Usia 5—6 Tahun pada Tindak Tutur Direktif Orang Tua
Authors: Wulandari Sovia
Published: May 2018

Penelitian ini bertujuan untuk menjelaskan bentuk tindak tutur direktif dan strategi bertutur yang digunakan oleh orang tua, serta respons verbal anak usia 5—6 tahun pada tindak tutur orang tua mereka. Metode yang digunakan adalah kualitatif deskriptif. Subjek penelitian adalah anak usia 5—6 tahun pada tahun 2012 dan orang tua mereka. Hasil penelitian ini menunjukkan bahwa bentuk tindak tutur direktif yang digunakan oleh orang tua adalah menyuruh, melarang, menyarankan, dan meminta. Respons verbal anak adalah anak memberikan respons positif terhadap tindak tutur menyuruh dengan strategi bertutur terus terang dengan basa-basi kesantunan positif dan kesantunan negatif; melarang dengan strategi bertutur terus terang dengan basa-basi kesantunan positif, kesantunan negatif, dan samar-samar; menyarankan dengan strategi bertutur terus terang tanpa basa-basi dan kesantunan negatif; dan meminta dengan strategi bertutur terus terang dengan basa-basi kesantunan positif. Sebaliknya, anak memberikan respons negatif terhadap tindak tutur menyuruh dengan strategi bertutur terus terang tanpa basa-basi dan samar-samar; melarang dengan strategi bertutur terus terang tanpa basa-basi; menyarankan dengan strategi bertutur terus terang dengan basa-basi kesantunan negatif; dan meminta dengan strategi bertutur terus terang tanpa basa-basi. Berdasarkan hasil penelitian, dapat disimpulkan bahwa sebaiknya orang tua tidak menggunakan strategi bertutur terus terang tanpa basa-basi untuk tindak tutur menyuruh, melarang, dan meminta. Sementara itu, untuk tindak tutur menyarankan, sebaiknya orang tua tidak menggunakan strategi bertutur terus terang dengan basa-basi kesantunan negatif karena anak memberikan respons negatif berupa penolakan.
The Influence of Emotional Intelligence on Social Adjustments of Tenth Grade Students of SMA Unggul Negeri 2 Banda Aceh
Authors: Nurhasanah Nurhasanah , Fitriana Qonita
Published: May 2018

Emotional intelligence is an individual’s ability to manage emotions by controlling the negative condition into a positive force and its relationship with social adjustment. In this case, the social adjustment in question is the adjustment of students in interacting with teachers, peers, and specific situations in the school environment effectively through the development aspects of self-awareness, emotional management, and utilization of emotions, empathy, and social skills. The purpose of this study was to describe the emotional intelligence and social adjustment variable of students as well as to determine how emotional intelligence influenced social adjustment of students. This research used a quantitative approach and ex-post facto method. The number of population was 118 students consisting of all tenth-grade students of SMA Unggul Negeri 2 Boarding School of Banda Aceh. Data were collected by using a closed questionnaire method with the scale 1-5. The data were processed and analyzed by using descriptive statistics and the coefficient of determination. The results showed that the influence of emotional intelligence on the social adjustment of students was 0,656 (coefficient of determination) that is 65%. Thus, it can be stated that Ha is accepted which means that emotional intelligence has a significant influence on the social adjustment of students.
The Influence of Problem-Based Learning Model on Learning IPS
Authors: Musdiani Musdiani
Published: May 2018

This research entitled: "The Influence of Problem-Based Learning Model on IPS (Social Education Science) learning outcomes in appreciating the history materials of grade fifth students at SD Negeri 46 Banda Aceh". The aim of this study is to determine the effect and student learning outcomes on appreciating the material of historical relics towards learning outcomes. This study is quantitative, while the method of the research is experimental. The population in this study were the students of class V-A and class V-B that consisted 60 students. Class V-A is as an experimental and class V-B as conventional learning model. The test was used to collect the data. It was analyzed by using t-test formula. The results of the data analysis showed that the students of the experimental class got the 80.5 score, while the students in the control class were 74.5 score. It shows that students in the experimental class have better learning outcomes than control class students. The t-count of analysis shown that the value of t-arithmetic = 2.15. While the t-table value = 2.00. This proves the value t- h itu n g ≥ t- ta b el. It can be concluded that there is a significant influence between the influences of problem-based learning model with the results of learning on appreciating the material of the historical relics for class fifth students at SD Negeri 46 Banda Aceh.
The Effectiveness of Teachers’ Performance of Islamic Junior High School in Islamic Boarding School Langkat District, Indonesia
Authors: Nasution Wahyudin Nur
Published: May 2018

This study aims to determine the relationship between emotional intelligence, self-concept and the performance effectiveness of Islamic Junior High School teachers in Islamic Boarding School, Langkat District, North Sumatra, Indonesia. This research used survey method with correlation technique. The sample in this study amounted to 32 teachers and the research data were collected by using questionnaires. All data were analyzed by using simple and multiple regression and correlation statistic. The results of this study revealed that: (1) there is a positive relationship between emotional intelligence and the effectiveness of teachers’ performance, (2) there is a positive relationship between self-concept and the effectiveness of teachers’ performance, and (3) there is a positive relationship between emotional intelligence, self-concept and the effectiveness of teachers’ performance.
Framework for Analysing Educational Equity in the English Education System
Authors: Agri Dalida , Berry Anthony , Arandia Juliette , Anastasia Ellena
Published: May 2018

Equity has become a pressing issue in debates about education reform in England, as new policy approaches have been sought to break the link between social advantage and educational achievement. Conflicting notions of what an equitable education system would look like and how it can be achieved, have led to discord at the heart of government, yet what is meant by equity is often unclear, and there are underlying tensions within the government’s dual excellence-and-equity agenda. The argument put forward here is that for reforms to have wide-reaching and equitable impacts, they must be based on broader notions of equity and education than those currently prevalent at policy level. To this end, a framework for thinking about educational equity is developed, exploring notions of equity per se, and the range of educational arenas in which equity might be pursued. This framework is intended to guide the creation of a systematic evidence-base about equity in education which can, in turn, inform policy.
Isıl İşlem Uygulamasının Dehidre Patates ve Patates Ununun Fizikokimyasal ve Fonksiyonel Özellikleri Üzerine Etkisi
Authors: NAZLIM Burak Alptuğ , TUNCEL Necati Barış
Published: May 2018

Bu çalışmada, farklı haşlama
süresi ve kurutma sıcaklığının patates ununun fizikokimyasal ve fonksiyonel
özelliklerine etkisi incelenmiştir. Haşlama işlemi süresinin artmasına bağlı
olarak nem miktarı, kül içeriği ve enzime dirençli nişasta miktarında azalma
tespit edilmiştir. Kontrol grubu örneklerin enzime dirençli nişasta içeriği
%18-23 arasında değişirken ön işlem uygulanmış örneklerin enzime dirençli
nişasta içeriği %3-4 oranına kadar azalmıştır. Haşlama süresinin uzaması su
bağlama kapasitesinde artışa neden olmuştur. Bununla birlikte yağ bağlama
kapasitesi ne kurutma sıcaklığı ne de haşlama süresi faktörlerinden
istatistiksel olarak önemli düzeyde etkilenmemiştir (p>0,05).  Rehidrasyon
kapasitesi hem kurutma sıcaklığının artması hem de haşlama süresinin uzamasıyla
artış göstermiştir.
Preliminary Observations and Assessment of Çanakkale-Ayvacık Earthquake Activity
Authors: BEKLER Tolga , DEMİRCİ Alper
Published: May 2018

A
project was begun to monitor earthquake activity at the southwest branch of the
Biga Peninsula in Ayvacık and close surroundings beginning on 14 January 2017
with Mw=4.6 and continuing through 6 February 2017 with Mw=5.5 (Mw=5.5 Kandilli
Observatory and Earthquake Research Institute – KOERI - , Mw=5.3 AFAD, Mw=5.4 ÇOMÜ).
The region has active seismicity and includes portions of the significant
tectonic elements of the northwest Aegean region. Due to the continuation of
earthquake activity, in addition to permanent stations linked to the national
networks (KOERI and AFAD)  in the region 10
continuous-form recording 3-component temporary stations were set up with the
aim of observation for at least 1 year. The distances between these stations
varied from 6 to 12 km. In addition to the intensity and continuity of
microearthquake activity in the region, and the inclusion of geothermal fields
in the region, the necessity to investigate the seismotectonic character of the
region in detail came to the agenda. Together with permanent stations belonging
to national observatories in the study area, the station density was
insufficient to reveal these details. As a result, data from both national
network and temporary stations will contribute to understanding the tectonic
character of the region. When temporary stations at close proximity to the main
shock and epicenter distribution are compared with the national network primary
results indicate there were significant improvements in identifying
microearthquakes especially and in determining their locations. Additionally,
and in source mechanism solutions belonging to earthquake data with moderate
magnitude, faulting with a dominantly NW-SE oriented normal offset component
was observed. This study aims to reveal the time and spatial distribution,
frequency content and source mechanisms for earthquakes occurring in the southwest
of the Biga Peninsula near Ayvacık and
surroundings, in addition to determining a detailed velocity model with local
tomography.
Özbek Ovası (Çanakkale) Tarım Topraklarında Ağır Metal Mobilitesinin Bir Ardışık Ekstraksiyon Yöntemiyle Değerlendirilmesi
Authors: İşler Mehmet , Sungur Ali , Soylak Mustafa
Published: May 2018

İnsan faaliyetlerine bağlı olarak
toprakların ağır metallerce kirletilmesi çevresel kaygıları beraberinde
getirmektedir. Karasal ortamdaki ağır metal kirliliği, tarım alanları için
dünya çapında bir sorundur. Bu çalışmanın amacı Özbek Ovası topraklarında ağır
metal fraksiyonlanmasını, mobilitesini ve olası kaynaklarını bir ardışık
ekstraksiyon yöntemi kullanarak belirlemektir. Bu amaçla önemli
bir tarımsal potansiyeline sahip olan Özbek Ovasından (Çanakkale) toplam on iki
noktadan toprak numuneleri alınmıştır. Örneklerde bulunan kadminyum (Cd), krom
(Cr), bakır (Cu), kurşun (Pb) ve çinko (Zn) elementleri ardışık ekstraksiyon
yöntemiyle her basamakta farklı çözücü sistemi kullanarak çözücü içerisine
ekstrakte edilmiş ve metallerin konsantrasyonları alevli atomik absorpsiyon
spektrometresi ile belirlenmiştir. Topraklarda
bulunan toplam ağır metal içerikleri incelendiğinde Cd, Pb ve kısmen Cu’nun genel
tarımsal toprak değerlerin üzerinde olduğu görülmüştür. Ardışık ekstraksiyon yönteminin
uygulanması, Cd (% 59) ve Pb (% 58) elementlerinin yüksek oranda mobil fraksiyonlara
sahip olduğu ve bunun antropojenik kaynaklardan beslendiğini göstermiştir. Çalışma alanında
özellikle Cd ve Pb elementlerinin kontrol altında tutulması ve izlenmesi çevre
açısından önemli olacağı kanısına varılmıştır. Gerek
çevresel bakımdan gerekse de tarımsal üretim bakımından ardışık ekstraksiyon
yöntemleri, özellikle tarımsal üretimin yapıldığı alanlarda planlama ve yönetim
için daha ayrıntılı ve güvenilir bilgiler verdiğinden daha geniş kapsamlı
kullanılması yararlı olacaktır.
SEGMENTATION OF CONSUMERS OF RESIDENTIAL REAL ESTATE AS THE MAIN PARTICIPANTS IN THE MARKETING MACRO ENVIRONMENT
Authors: Ишамятова Ирина , Ishamyatova Irina
Published: May 2018

This work is devoted to studying of behavior of various segments of consumers in the market of a residential real estate. Work on segmentation of consumers of Penza on various criteria is carried out: on geographical, demographic, psychographic and behavioural. In work methods of the statistical analysis and the formalized survey of consumers conducted during the period since 2016-2017 are used. The conducted researches will allow to accumulate marketing efforts of the construction organizations to ensuring demand of separate groups of buyers, but not on all market in general. Regional and to municipalities of domicile purposefully to influence formation of needs of the population with which in compliance to coordinate the volume and structure of construction.
ANALYSIS OF THE STRATEGY FOR THE FOUNDRY ROLLING COMPLEX OF THE "UNITED METALLURGICAL COMPANY"
Authors: Шибанов Кирилл , Shibanov Kirill
Published: May 2018

The article presents the analysis of the strategy one of the leading enterprises of

the "United metallurgical company" – the Foundry Rolling Complex using the typologies

proposed by A. Chandler, M. Porter, Miles and Snow, V. Gerchikov. It is established that the

need of the development strategy of the company was initially linked to the need for the owner

and a hired Manager to agree on what areas should be developed to take into account the

interests of both. The article identified: the long-term goal LPK, short term goals, ongoing

courses and allocation of resources.

From the point of view of competitive strategies A. Chandler, it was found that at present

forestry uses "positive" strategy aimed at active consolidation of its position in the market and to

enter new niches. According to the typology of M. Porter the company is gradually moving to

the use of the differentiation strategy – the possibility of competition due to the uniqueness of a

product with broad market coverage. According to the typology of miles and snow's the

company follows a strategy of analysis, while achieving operational excellence and developing

new products. The predominant component of the LPK, determining one of the six basic

missions proposed by V. Gerchikov, is to focus on the area, which somewhat restricts the ability

of the company to reduce costs and improve efficiency.

Strategy analysis, performed using several typologies, has led to the conclusion that the

company needs to actively develop new products. Is present on the same market of oil and gas

pipes should look for new niches to supply steel builders, automakers, etc. To the base

component orientation on site, you need to add the orientation to the case or result, without

which successful competition will be impossible. The article also noted that to achieve long-term

goals of forestry should stick to any one strategy.
Features of foreign and domestic development of project financing and other investment instruments in housing construction and problems of their priority application instead of equity construction
Authors: Баронин Сергей , Baronin Sergey , Есафьев Никита , Esaf'ev Nikita
Published: May 2018

The article deals with the main problematic issues of replacement of equity housing construction with bank project financing. The article analyzes foreign experience of replacement of shared construction with alternative investment schemes and possibility of their application in primary housing market of Russia. The article analyzes positive results and risks of implementation of these schemes. The article analyzes the existing plan of measures to gradually replace the funds of citizens involved in the creation of apartment buildings, bank lending and other forms of financing that minimize the risk to citizens. The article states the main problematic aspects of replacement of equity construction with bank project financing. On the basis of the analysis recommendations were proposed that will reduce the risk of negative consequences on the primary housing market of Russia in the process of replacement of equity construction with bank project financing.
Designing a marketing information system of an industrial enterprise
Authors: Изакова Наталья , Izakova Natalya , Капустина Лариса , Kapustina Larisa
Published: May 2018

The aim of the study is to develop and test methodology for establishing a marketing information system of an industrial enterprise using the balanced scorecard. The article suggests that the end result of designing the MkIS would be a comprehensive accessible data system that assists in making well-reasoned marketing decisions and evaluating the efficiency of their implementation. The authors also define the criteria for collecting and structuring marketing information. The structure of the MkIS proposed by the authors enables evaluating the influence of marketing investments on the financial performance of an industrial company. One-way ANOVA test is used to identify the factors that determine customer satisfaction level and its relation with the share of clients in total sales. The opportunities resulting from the suggested methodology can be used by industrial enterprises that need efficient management tools based on well-organized system of information flows.
DEVELOPMENT OF TECHNOLOGIES OF SELF-CHECKING AS KEY FUNCTION OF PERSONAL MANAGEMENT
Authors: Резник Семен , Reznik Semen , Чемезов Игорь , Chyemyezov Igor
Published: May 2018

Self-checking is one of key functions of personal management, allowing to optimize processes of personal activity, to understand whether goals were achieved and tasks are solved, to make if it is necessary, their adjustment. Article is devoted to professional creation of system of self-checking in management of life and activity of business people.

Such self-checking is provided with systematic assessment of realization of the vital purposes and the planned affairs.

Besides, managers, especially young, have to carry out regularly a self-assessment of level of the personal organization. Such analysis helps to estimate and develop systemically the qualities of self-organization, the ability to operate own life and activity, therefore, to become more effective.
Modern tools to attract investment in the business sector of the Republic of Tajikistan
Authors: Тошматов Махмуд , Toshmatov Mahmud , Раджабов Манучехр , Radzhabov Manuchehr
Published: May 2018

The paper discusses some actual problems of attracting investment resources, and considers many investment instruments that can increase the access of the business sector of Tajikistan to external financing of investments.
Análisis prospectivo del sector industrial de plásticos en la ciudad de Bogotá D.C. bajo método Delphi
Authors: Guarín Salinas Andrés Giovanni , Califa Castro Jenipher Catalina , Peralta Gutiérrez Laura Lucia
Published: May 2018

El artículo recoge los resultados del trabajo de investigación llevado a cabo para determinar los factores estratégicos que debe tener en cuenta el clúster de plásticos en la ciudad de Bogotá, para la construcción de escenarios futuros hacia el año 2019 y de esta forma orientar las decisiones empresariales hacia un mejor comportamiento de la productividad. El documento hace una introducción al proceso prospectivo, donde se identifica sus características y bondades para, posteriormente, elegir el método Delphi como la mejor técnica para lograr un consenso entre un selecto panel de expertos y conocer sus ideas frente a la problemática planteada. De esta manera, se configura un conjunto de variables claves, que mediante un análisis estructural, alcanzan un ordenamiento lógico, coherente y confiable, que sirve de insumo para plantear un conjunto de eventos relevantes, relacionados entre sí, para marcar una tendencia significativa que condicione el comportamiento futuro del sector industrial de estudio.
La Ingeniería Industrial presente y futuro
Authors: Gutiérrez Cancino Jorge
Published: May 2018

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Evaluación de la fotodegradación del cromo (VI) sobre películas de dióxido de titanio utilizando un seguimiento electroquímico “in situ”
Authors: Romero Edward , Escobar Diana , Gómez Neyari , Quiñones Cesar
Published: May 2018

El Cr (VI) es un elemento tóxico en las aguas residuales industriales que puede ser eliminado por una reducción de Cr (VI) a Cr (III). La reducción de Cr (VI) a Cr (III) es capaz de ser alcanzado por un proceso fotocatalítico. Por ello se investigó la reducción fotocatalítica de Cr (VI) sobre catalizadores con TiO2. El catalizador de TiO2 se pre-calcinado a diferentes temperaturas para absorber la actividad fotocatalítica y siendo importante el área de la super cie del fotocatalizador. Bajo las condiciones ensayadas, la reducción fotocatalítica de Cr (VI) se comportó como una reacción cualitativa en donde por cambios de color de naranja (cromo VI) a verde (cromo). Se encontró la velocidad para la reducción fotocatalítica de Cr (VI) en donde al paso de 4 a 6 horas se evidencia el cambio a diferentes concentraciones de la solución, y agregando ácido sulfúrico como electrolito soporte para disminuir el pH. Estos resultados demostraron que la reducción fotocatalítica de Cr (VI) depende tanto de la irradiación con luz ultravioleta, la concentración de la solución, la entrada de aire y factores como el pH. Para la detección de las concentraciones de Cromo a diferentes tiempos se utilizó un método electroquímico; voltametría cíclica en donde por medio del potencial se demuestra la disminución en la concentración en tiempos continuos.
Evaluación técnica de la viabilidad de inyección cíclica de vapor en pozos horizontales en el campo de crudo pesado
Authors: Ramos Ramos Jorge Luis , Rodríguez Edwin , Hernández Castro Diana María , Romero González María Paula
Published: May 2018

La evaluación para la implementación de la tecnología de inyección cíclica de vapor en el Campo XY se realizó con el fin de evaluar el impacto en el factor de recobro, a través de un análisis de sensibilidades tanto a nivel operativo, como en propiedades del yacimiento, entre las cuales están la producción en frío, con pozos verticales y horizontales. Lo anteriormente descrito se realizó mediante un modelo de simulación numérica con el software CMG, a través del cual se evaluaron los diferentes escenarios propuestos para, de esta manera, evaluar el factor de recobro con cada una de éstas técnicas.

Finalmente, se realizó un análisis financiero teniendo en cuenta todos los perfiles de producción generados a partir de las sensibilidades y escoger dos escenarios pesimistas, medios y optimistas, para hacer los flujos de caja correspondientes a los casos seleccionados, y evaluar financieramente la implementación del método.
Estudio de la viabilidad técnica para la implementación de la inyección alternada agua-gas combinada con la inyección de químicos en un campo de crudo mediano en Colombia
Authors: Ramos Ramos Jorge Luis , Duarte Prada Cesar Augusto , Astros Fonseca Ivan Rodrigo , Trujillo Montes Ángela Del Pilar
Published: May 2018

El presente trabajo muestra la viabilidad técnica de la tecnología CWAG (inyección alternada de agua-gas-químicos) para ser implementada en un campo de crudo mediano en Colombia, generando un modelo de simulación numérica en el software CMG-STARS. El proceso inicia con la validación del modelo estático del campo siguiendo el esquema de producción actual (inyección de agua y prueba piloto de la inyección alternada de agua-gas), luego se realiza el cotejo histórico de los fluidos de producción (agua y aceite) para poder proyectar diferentes escenarios con el uso de químicos (surfactantes, polímeros y alcalinos), y con la tecnología CWAG; desarrollando un serie de sensibilidades que ayudan a determinar cuál sería el mejor escenario para implementar según el incremento del factor de recobro, teniendo en cuenta variables como las tasas de inyección de gas, número de pozos inyectores, frecuencia de inyección, orden de los baches, concentraciones de químicos y relación de los baches inyectados
Origen de las pymes en Colombia: ¿consecuencia de una acertada política nacional de emprendimiento o fruto de la ausencia de oportunidades laborales para los colombianos?
Authors: Cuevas Oviedo Martín Felipe
Published: May 2018

Este artículo pretende identificar la verdadera razón por la cual un emprendedor colombiano decide abrir una empresa en Colombia. Si bien el Gobierno Nacional a partir del año 2009, presentó un documento con la Política Nacional de Emprendimiento, desafortunadamente Colombia ha sido históricamente un país que se caracteriza por la informalidad en el mercado laboral. Por lo tanto, se presenta un análisis sobre el rol del Estado frente a la Política Nacional de Emprendimiento, así como los cuatro indicadores de medición mundial que el Gobierno Colombiano debe considerar, para que la política de emprendimiento nacional tenga una correcta medición.

También se toma en consideración las principales motivaciones que tiene un emprendedor colombiano para la apertura de una empresa, así como la presentación de datos contundentes, sobre la discriminación sistemática que tiene el sexo femenino en el mercado laboral colombiano. Se destacan algunos resultados obtenidos en un estudio del Global Entrepreneurship Monitor – GEM sobre el emprendimiento en Colombia. Finalmente, se realiza un breve repaso sobre el marco jurídico del emprendimiento a nivel nacional.
Impacto socio espacial de la peatonalización de la carrera séptima
Authors: Casas Matiz Elvia Isabel
Published: May 2018

Este artículo se presenta como avance de la investigación “Impacto socio espacial de la peatonalización de la carrera séptima entre calle 26 y avenida 19”. Se inicia con un acercamiento al marco histórico que determina algunas de las condiciones actuales de esta vía, en este tramo, y posteriormente define parte del marco y del esquema conceptual propuesto, el cual puede servir de guía para el análisis urbano. El trabajo surge como necesidad académica de definir nuevas alternativas de análisis espacial-urbano, desde una perspectiva especialmente socio-cultural, las cuales ayudarían a acercar la labor del arquitecto y de los estudiantes a proyectos espaciales integrales especialmente en lugares consolidados.
Cálculo del costo de capital en empresas que no cotizan en la bolsa de valores colombiana
Authors: Millán Solarte Julio Cesar , Montilla Galvis Omar De Jesús
Published: May 2018

El artículo presenta los resultados del cálculo del Costo de Capital en una compañía que no transa sus acciones en la bolsa de valores de Colombia. Los datos utilizados y la metodología empleada se aplicaron para los índices financieros de los años 2008 y 2009. La técnica utilizada permitió obtener la rentabilidad mínima que debe exigirse a los activos de la compañía estudiada, para devolver las exigencias de retorno que realizan los agentes inversionistas. Se pudo establecer el paralelo entre esta rentabilidad y la rentabilidad de los activos; la rentabilidad del patrimonio y los índices en el orden local, departamental y nacional, para las empresas del mismo sector productivo de la compañía analizada.
Diseño a nivel laboratorio de un proceso de ósmosis inversa para disminuir bario de las aguas de producción y captación del campo Cantagallo
Authors: Mesa Eliana , Medina Lesly , Rodríguez Nelson
Published: May 2018

En este trabajo se diseñó un prototipo de ósmosis inversa a escala laboratorio, con el fin de disminuir la concentración de bario presente en el agua de producción y captación del Campo Cantagallo. Se realizó una matriz de decisión que permitió elegir el medio filtrante que presentara algunas características similares a las de una ósmosis inversa. El prototipo se bocetó en el programa Sketch Up, se modeló en el software SolidWorks y se simuló el proceso con la herramienta Flow simulation. La pre-experimentación se realizó con un montaje sencillo usando agua de dos y tres puntos diferentes de la planta de tratamiento, este proceso se desarrolló en dos etapas, la primera para identificar la eficiencia de la membrana y variables de proceso, y la segunda para aplicar las variables seleccionadas e identificar el porcentaje de remoción. En la construcción del prototipo se utilizan tres membranas configuradas en serie con válvulas de compuerta para cerrar el proceso y válvulas de muestreo después de cada una de ellas; asimismo se utilizan reducciones y ampliaciones de diámetro que conectan con la entrada y salida de los filtros. Se realizó un diseño de experimentos factorial 2k que generó combinaciones de variables para la experimentación. En la puesta en marcha del prototipo se realizan 4 pruebas con réplica para 3 puntos de la planta de tratamiento de agua, usando configuraciones de dos y tres membranas y dos caudales diferentes. El prototipo de ósmosis inversa como tratamiento de agua de producción y captación presentó un porcentaje de remoción de bario de 76% con una configuración de tres membranas y el mayor caudal.
Escalamiento de modelos cinéticos para evaluar procesos de inyección de aire en yacimientos de crudo pesado en un campo X de Ecopetrol S.A.
Authors: Ramos Ramos Jorge Luis , Rodríguez Caviedes Andrés Felipe , Wilches Madrigal Lina Paola , Rodríguez Edwin
Published: May 2018

El presente trabajo de investigación pretende estudiar el efecto que tiene el upscaling y downscaling en un modelo de tubo de combustión (cambios en el número de celdas), con el fin de observar si estos generan un impacto en la tasa de producción, la temperatura, la producción acumulada, entre otras variables. Todo esto con el fin de generar un ajuste numérico o una solución general para los cambios que se le realicen al modelo base. Dichos cambios son a nivel de resolución de celdas radiales y verticales. Lo anterior enfocado a la posibilidad de reproducir los modelos de laboratorio a una escala de campo.
Diseño de un esterilizador industrial por concentración de energía solar, para alimentos enlatados
Authors: Guerrero Vargas José Alejandro , Calderón Mejía Andrés Libardo
Published: May 2018

El presente artículo muestra el diseño de un colector solar térmico, para ser implementado en un autoclave de vapor en un proceso industrial de esterilización de alimentos enlatados, para la ciudad de Bogotá, Colombia. La selección del tipo de colector solar se basó en los parámetros climáticos y de radiación solar de la zona, eligiendo el colector por tubos de vacío con tubo de calor. Para validar el diseño, se llevó a cabo un análisis por elementos finitos en un solo tubo del colector solar, enfocado en el análisis de temperaturas necesarias del proceso, tomando en cuenta la radiación incidente de la zona de estudio en el día de mayor distancia entre el Sol y la Tierra.
Bogotá en el manejo del agua lluvia
Authors: Casas-Matiz Elvia Isabel
Published: May 2018

Las ciudades actuales enfrentan situaciones cada vez más complejas, nutridas por factores demográficos, económicos y sociales. A ellos se suman condiciones ambientales extremas, ocasionadas por el cambio climático. Estas situaciones se hacen evidentes en periodos más largos, de inundaciones o sequías, desastres ambientales que perjudican la calidad del hábitat, tanto urbano como rural. Frente a esta problemática, han surgido propuestas de estructuras espaciales sostenibles procurando, mejorar y mitigar, el impacto de doble vía de nuestros modelos de desarrollo frente al planeta. Propuestas, como la utilización del recurso pluvial, se consideran como una de las “alternativas limpias” en procura de estos desarrollos. El artículo de revisión a continuación, hace parte del proceso de investigación in- terdisciplinar adelantado por el proyecto “Gestión del Recurso Pluvial y su uso potencial en la planeación del territorio”. Busca aplicar el modelo sistémico en una escala de análisis de ciudad, al privilegiar dos variables: la normativa, que revisa el marco legal rector de Bogotá, frente al manejo de este recurso; y la ambiental, que presenta la importancia dentro del ciclo del agua de los humedales y los acuíferos, y establece su relación con el recurso pluvial a través de las escorrentías.
Evaluación de desempeño de dos diseños de lechadas de cemento para sistemas de recuperación térmica en el Campo Chichimene ubicado en la cuenca de los Llanos Orientales
Authors: Ramos Jorge , Jimenez Padilla Pedro Alonso , Palencia Stanford Roger David , Polanco Lilia
Published: May 2018

Se evaluó el desempeño de dos diseños de lechadas de cemento para sistemas de recuperación térmica en el Campo Chichimene, a través de pruebas de laboratorio. Se establecieron rangos de diseño para el proyecto teniendo en cuenta las condiciones de un pozo real perforado en el campo, al igual que los estándares de calidad exigidos por Ecopetrol S.A. para este tipo de proyectos, tanto para propiedades API como para propiedades mecánicas. De acuerdo con los resultados obtenidos, la tecnología B es la que mejor se ajusta a los requerimientos para el proyecto; por lo tanto, es la recomendada para su uso en la cementación de los pozos de éste u otro campo, que tengan condiciones similares al pozo escogido para establecer los rangos de propiedades.