bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect of the duration between urine culture and semirigid ureteroscopic on the rate of systemic inflammatory response syndrome postoperatively
Authors: Akkaş Fatih , Sam Emre , Cinislioglu Ahmet , Karabulut İbrahim , Yilmazel Fatih Kursat , Sungur Ubeyd , Atar Feyzi Arda
Published: February 2021

Purpose: The aim of this study is to analyze the preoperative and
intraoperative factors that might induce systemic inflammatory response
syndrome after semirigid ureteroscopic lithotripsy (SULL) , and to
evaluate the impact of duration between preoperative bladder urine
culture (PBUC) and surgery on postoperative systemic inflammatory
response syndrome (SIRS). Methods: A retrospective review was conducted
including patients who underwent SULL in our center between January 2011
and June 2020. Prior to surgery, PBUC were obtained from all patients
and postoperatively patients were observed for signs of SIRS.
Univariable and multivariable binary logistic regression analysis were
implemented to demonstrate the factors that predict SIRS
postoperatively. Results: The entire study included a cohort of 572
patients. The rate of SIRS following SULL was 1.7%. Predictive factors
for SIRS were listed as stone volume, surgical time, and history of
recurrent urinary tract infection. No significant difference was
detected in terms of the duration between PBUC and SULL when comparing
the SIRS group with the other group. Conclusion: The duration between
PBUC and SULL is not an efficacious factor for SIRS. It may be useful to
conduct prospective studies to enlighten this issues as endourologists
deal with this duration dilemma often in daily practice. Keywords:
Semirigid ureteroscopic lithotripsy, Systemic inflammatory response
syndrome, Preoperative bladder urine culture
Worldly community and community of blood in the star of redemption: A critical approach from Helmuth Plessner’s anthropology
Authors: Navarrete Alonso
Published: February 2021

This work offers a critical approach to Franz Rosenzweig?s conception of
community in The Star of Redemption based on Helmuth Plessner?s political
anthropology. First, it presents Plessner?s critique of social radicalism
and of the apoliticism of the German spirit, and its parallelism with the
Jewish spirit. Second, it delves into the passage from Hegel und der Staat
to The Star in a communitarian key. Third, it dwells on the difference
between community of blood and community of faith in Rosenzweig, together
with his theological-political translation into the distinction between the
eternal people and the peoples of the world. Last, as a conclusion, it makes
manifest the apoliticism of the Rosenzweigian proposal, and therefore, its
incapacity to give an answer to the political problem in Weimar, of which
its catastrophic consequences Rosenzweig did not know.
Inclusion and convolution features of univalent meromorphic functions correlating with Mittag-Leffler function
Authors: Ghanim F. , Al-Janaby Hiba
Published: February 2021

The so-called Mittag-Leffler function (M-LF) provides solutions to the
fractional differential or integral equations with numerous implementations
in applied sciences and other allied disciplines. During the previous
century, the interest in M-LF has significantly developed and a variety of
extensions and generalizations forms of the M-LF have been posed. Moreover,
M-LF played a distinguished and important role in Geometric Function Theory
(GFT). The intent of the current study is to reveal various inclusion and
convolution features for a specific subclass of univalent meromorphic
functions correlating with the integrodifferential operator containing an
extended generalized M-LF. Some consequences of the major geometric outcomes
are also presented.
Viewing *-multiplication operators between Orlicz spaces
Authors: Cheshmavar Jahangir , Hosseini Seyed
Published: February 2021

In this paper, Lambert multipliers acting between Orlicz spaces are
characterized based on some properties of conditional expectation operators.
We provide a necessary and sufficient condition for the *-multiplication
operators to have closed range. Finally, a necessary condition for
Fredholmness of these type of operators will be investigated.
An evolution equation governed by a quasi-nonexpansive mapping on Hadamard manifolds and its backward discretization
Authors: Khatibzadeh Hadi , Piranfar Mohsen
Published: February 2021

We study the asymptotic behavior of solutions to a first-order evolution
equation governed by a locally Lipschitz quasi-nonexpansive mapping. We show
that such solutions converge to a fixed point of the quasi-nonexpansive
mapping as time goes to infinity. Time discretization of this system
provides an iterative method to approximate a fixed point of
quasi-nonexpansive mappings on Hadamard manifolds.
Hartman-Wintner and Lyapunov-type inequalities for high order fractional boundary value problems
Authors: Toprakseven Şuayip
Published: February 2021

In this paper, we obtain Hartman-Wintner and Lyapunov-type inequalities for
the three-point fractional boundary value problem of the fractional
Liouville-Caputo differential equation of order ? 2 (2; 3]. The results
presented in this work are sharper than the existing results in the
literature. As an application of the results, the fractional Sturm-Liouville
eigenvalue problems have also been presented. Moreover, we examine the
nonexistence of the nontrivial solution of the fractional boundary value
problem.
On partial metric preserving functions and their characterization
Authors: Miñana Juan-José , Valero Oscar
Published: February 2021

In 1981, J. Bors?k and J. Dob?s characterized those functions that allow to
transform a metric into another one in such a way that the topology of the
metric to be transformed is preserved. Later on, in 1994, S.G. Matthews
introduced a new generalized metric notion known as partial metric. In this
paper, motivated in part by the applications of partial metrics, we
characterize partial metric-preserving functions, i.e., those functions that
help to transform a partial metric into another one. In particular we prove
that partial metric-preserving functions are exactly those that are strictly
monotone and concave. Moreover, we prove that the partial metric-preserving
functions preserving the topology of the transformed partial metric are
exactly those that are continuous. Furthermore, we give a characterization
of those partial-metric preserving functions which preserve completeness and
contractivity. Concretely, we prove that completeness is preserved by those
partial metric-preserving functions that are non-bounded, and contractivity
is kept by those partial metric-functions that satisfy a distinguished
functional equation involving contractive constants. The relationship
between metric-preserving and partial metric-preserving functions is also
discussed. Finally, appropriate examples are introduced in order to
illustrate the exposed theory.
On the diameter of compressed zero-divisor graphs of ore extensions
Authors: Hashemi Ebrahim , Abdi Mona
Published: February 2021

This paper continues the ongoing effort to study the compressed zero-divisor
graph over noncommutative rings. The purpose of our paper is to study the
diameter of the compressed zero-divisor graph of Ore extensions and give a
complete characterization of the possible diameters of ?E(R[x; ?,?]), where
the base ring R is reversible and also have the (?,?)-compatible property.
Also, we give a complete characterization of the diameter of ?E (R[[x;?]]),
where R is a reversible, ?-compatible and right Noetherian ring. By some
examples, we show that all of the assumptions ?reversiblity?,
?(?,?)-compatiblity? and ?Noetherian? in our main results are crucial.
(m,q)-isometric and (m,∞)-isometric tuples of commutative mappings on a metric space
Authors: Mahmoud Sid , ChO Muneo , Lee Ji
Published: February 2021

In this paper, we introduce new concepts of (m,q)-isometries and
(m,?)-isometries tuples of commutative mappings on metrics spaces. We discuss
the most interesting results concerning this class of mappings obtained form
the idea of generalizing the (m,q)-isometries and (m,?)-isometries for single
mappings. In particular, we prove that if T = (T1,..., Tn) is an
(m,q)-isometric commutative and power bounded tuple, then T is a
(1,q)-isometric tuple. Moreover, we show that if T = (T1,...,Td) is an (m,?)-
isometric commutative tuple of mappings on a metric space (E,d), then there
exists a metric d? on E such that T is a (1,?)-isometric tuple on (E,d?).
A note on the power graphs of finite nilpotent groups
Authors: Jain Vivek , Kumar Pradeep
Published: February 2021

The power graph P(G) of a group G is the graph with vertex set G and two
distinct vertices are adjacent if one is a power of the other. Two finite
groups are said to be conformal, if they contain the same number of elements
of each order. Let Y be a family of all non-isomorphic odd order finite
nilpotent groups of class two or p-groups of class less than p. In this
paper, we prove that the power graph of each group in Y is isomorphic to the
power graph of an abelian group and two groups in Y have isomorphic power
graphs if they are conformal. We determine the number of maximal cyclic
subgroups of a generalized extraspecial p-group (p odd) by determining the
power graph of this group. We also determine the power graph of a p-group of
order p4 (p odd).
Association of Metabolic Phenotypes With Coronary Artery Disease and Cardiovascular Events in Patients With Stable Chest Pain
Authors: Kammerlander Andreas A. , Mayrhofer Thomas , Ferencik Maros , Pagidipati Neha J. , Karady Julia , Ginsburg Geoffrey S. , Lu Michael T. , Bittner Daniel O. , Puchner Stefan B. , Bihlmeyer Nathan A. , Meyersohn Nandini M. , Emami Hamed , Shah Svati H. , Douglas Pamela S. , Hoffmann Udo
Published: February 2021

OBJECTIVE

Obesity and metabolic syndrome are associated with major adverse cardiovascular events (MACE). However, whether distinct metabolic phenotypes differ in risk for coronary artery disease (CAD) and MACE is unknown. We sought to determine the association of distinct metabolic phenotypes with CAD and MACE.

RESEARCH DESIGN AND METHODS

We included patients from the Prospective Multicenter Imaging Study for Evaluation of Chest Pain (PROMISE) who underwent coronary computed tomography (CT) angiography. Obesity was defined as a BMI ≥30 kg/m2 and metabolically healthy as less than or equal to one metabolic syndrome component except diabetes, distinguishing four metabolic phenotypes: metabolically healthy/unhealthy and nonobese/obese (MHN, MHO, MUN, and MUO). Differences in severe calcification (coronary artery calcification [CAC] ≥400), severe CAD (≥70% stenosis), high-risk plaque (HRP), and MACE were assessed using adjusted logistic and Cox regression models.

RESULTS

Of 4,381 patients (48.4% male, 60.5 ± 8.1 years of age), 49.4% were metabolically healthy (30.7% MHN and 18.7% MHO) and 50.6% unhealthy (22.3% MUN and 28.4% MUO). MHO had similar coronary CT findings as compared with MHN (severe CAC/CAD and HRP; P > 0.36 for all). Among metabolically unhealthy patients, those with obesity had similar CT findings as compared with nonobese (P > 0.10 for all). However, both MUN and MUO had unfavorable CAD characteristics as compared with MHN (P ≤ 0.017 for all). A total of 130 events occurred during follow-up (median 26 months). Compared with MHN, MUN (hazard ratio [HR] 1.61 [95% CI 1.02–2.53]) but not MHO (HR 1.06 [0.62–1.82]) or MUO (HR 1.06 [0.66–1.72]) had higher risk for MACE.

CONCLUSIONS

In patients with stable chest pain, four metabolic phenotypes exhibit distinctly different CAD characteristics and risk for MACE. Individuals who are metabolically unhealthy despite not being obese were at highest risk in our cohort.
Estrategias para mejor la calidad educativa con base en el análisis de la trayectoria académica en el área de ingeniería
Authors: Rodríguez Pérez Ivonne , Pérez Ramírez Rigoberto , José Martín Flores Albino
Published: February 2021

El objetivo de esta investigación fue analizar algunos indicadores de la trayectoria académica de alumnos de ingeniería en Computación (ICO) e ingeniaría en Sistemas y Comunicaciones (ISC) (cohorte 2014-2019) del Centro Universitario UAEM Valle de México. Para ello, se desarrolló un trabajo de tipo no experimental, en el cual se tomaron en cuenta los siguientes indicadores: número de alumnos que concluyeron su plan de estudios, grado de avance, deserción escolar, reprobación, tipo de examen (ordinario, extraordinario y título) mediante el cual los alumnos aprueban cuando están cursando por segunda vez una materia y escuela de donde procedían los estudiantes de ambas ingenierías. Los resultados más destacados demuestran que la demanda de ambas ingenierías es equivalente, aunque en cuanto al sexo existe una preponderancia por parte de los hombres. Asimismo, se puede indicar que el grado de avance disminuye en el segundo y tercer semestre de ambas carreras, ya que los alumnos consideran que son los de mayor grado de dificultad. Para atender estas situaciones se recomiendan estrategias de atención que incluyan asesorías, tutorías, canalización psicológica, entre otras.
Economic Rationality Analysis of Forestry Sector with Econometric Methods (The General Directorate of Forestry Case)
Authors: YEŞİLYURT Emine Nur , TÜRKER Mustafa Fehmi
Published: February 2021

Economic
rationality, defined as achieving a certain outcome with minimum spending, is
important in ensuring the economic sustainability of the General Directorate of
Forestry (GDF), which is responsible for the administration and operation of
forests. Thus, the present study aimed to determine economic rationality, which
is important for the sustainability of the GDF and statistically determine
whether variables such as productive forest area, non-productive forest area,
class wood revenues, etc., which have economic significance for forestry affect
economic rationality. Study data were obtained from the GDF Directorate of
Administrative and Financial Affairs, the Directorate of Enterprise and
Marketing and the Directorate of Strategy Development. The main material
included the 2013, 2014 and 2015 current capital budget data obtained from the
GDF Directorate of Administrative and Financial Affairs. The analyses conducted
for the presented years demonstrated that the economic efficiency of GDF was
below 1 in only 2013. However, relational statistical analyzes were conducted
between the 19 variables and economic rationality. As a result, 8 models were
determined and the effects of the variables on the economic rationality of GDF
were interpreted.
Prioritization of Criteria and Tree Species in Agroforestry
Authors: GÜNGÖR Ersin , AYAZ Sevinç
Published: February 2021

Today, forests, which are one of the most important resources capable of naturally renewing themselves, are not considered and operated only as the resources of wood raw materials. The products and the protective services provided by forests are of greater importance in terms of intensive forestry approach that aims to meet the demands of the modern society. The different ecological conditions of our country as well as the wide range of species arising correspondingly increase the potential of agroforestry practices which are to make important contributions, especially in terms of food, chemistry, medicine and energy sectors. Within this scope, poplar, salix, robinia pseudoacacia, cupressus, juglans, chestnut and stone pine are the first species that spring to mind, when it comes to agroforestry practices in Turkey. In this study, it is aimed to identify the most suitable species, i.e. to make species prioritisation, in a potential agroforestry site for the agroforestry plantations to be established in the future by using the chestnut, stone pine and poplar species used in private and state afforestation in Bartin region in terms of the suitability of ecological conditions, with the use of the Analytical Hierarchy Process (AHP) Method, which is one of today's multidimensional and widely used decision making methods. For this purpose, taking the ecological, technical, social and economic criteria in the study area into consideration, a questionnaire study was conducted with 80 participants at different ages and educational levels, and the results were evaluated by AHP method. According to the analysis results, the species prioritization for the agroforestry plantations in Bartin region was found to be as follows: 1st Chestnut, 2nd Stone pine and 3rd Poplar. The ecological and economic criteria are the most important ones effective in this ranking. In terms of sub-criteria, Net Income Maximization received the highest value.
Kent Ormanları Karbon Potansiyelinin Türkiye Gönüllü Karbon Kredi Piyasasına Entegre Edilmesinin Önemi
Authors: ORAL Hasan Volkan
Published: February 2021

Küresel ısınma ve iklim değişikliğinin en önemli nedenlerinden biri de kontrolsüz şekilde kullanılan fosil yakıt kullanımı ve sonucunda ortaya çıkan karbon türevli seraurl gazlarıdır. Bu gazlardan Karbondioksit (CO2) salımını kontrol edebilmek için Sürdürülebilir Kalkınma prensipleri ile uyumlu Temiz Kalkınma Mekanizması (Clean Development Mechanism) geliştirilmiştir. Karbon piyasaları bu mekanizma içerisinde yer alan araçlardan biridir. Gönüllü Karbon Piyasaları bu mekanizma altında yeralmaktadır. Bu piyasa sistemi Türkiye'de mühendislik ve son yıllarda finans disiplinleri aracılığı ile irdelenmeye çalışılmaktadır. Bu konuda özellikle orman ekonomisi özelinde kent ormancılığının gönüllü karbon kredileri için değerlendirilebilme potansiyeli görmezden gelinmektedir. Yurtdışında özellikle son yıllarda yapılan bir çok yayında kent ormanlarının da sertifikalı veya gönüllü karbon piyasaları değerlendirme süreçlerine alındığını görebilmekteyiz. Bir projeye ait karbon kredilerini oluşturma, fiyatlandırma ve kredileri satin alacak alıcıların bulunması aşamasında, ilgili projelerin sosyo-ekonomik faktörler ve çevreye olan etkilerinin de değerlendirilmeye alındığı görülmektedir. Bu noktadan hareketle kent ormanlarının doğal ekosisteme ve sosyo-ekonomik parametreler üzerine olan yararları gözden kaçırılmamalıdır. Halen Türkiye’de istenen düzeyde gelişme gösteremeyen gönüllü karbon karbon piyasası uygulaması, kent ormancılığının da sisteme dahil edilmesi ile olumlu yönde gelişme gösterebilir, ekonomik değeri artabilir. Bu çalışmada, Türkiye'deki kent ormanlarının gönüllü karbon piyasasına entegre edilebileceği bir sistem önerisinde bulunulmuştur.
Investigation of the 18-Year Status and Changes of Mixed Stands in Europe
Authors: AKTÜRK Emre , ALTUNEL Arif Oguz , KARA Ferhat
Published: February 2021

Forests play essential roles for the protection of the earth when we are struggling with global climate change. It is necessary to examine the current status of the forests and their changes over time in order to determine the precautions to be taken in the future to overcome the environmental issues associated with the climate change. For this reason, the current status and the 18-year change of European Continent mixed forest stands in acreage were examined in this article. The Coordination of Information on the Environment (CORINE) land cover datasets belonging to 2000, 2006, 2012 and 2018 were used for the analyses in the study. Approximately 2.8 million hectares of mixed forestland have been lost in the last eighteen years in Europe, which has approximately 31 million hectares of mixed forest stands as of 2018. It was determined that this decrease was mostly caused by the change during the period of 2006-2012. In addition, it was revealed that mixed forests of Finland, Germany and Turkey dramatically suffered a high rate of destruction in the last eighteen years as a result of this study.
Yanan Ormanlarda 50 Gün: Yaşar Kemal’in Gözleminden Ormancılık Dersleri
Authors: ERDÖNMEZ Cihan
Published: February 2021

Dünya edebiyatında doğaya olan ilgi 1990’lardan itibaren çevreci eleştiri (ekokritizm) denilen bir akım oluşturmuştur. Yaşar Kemal yaşadığı toplumla birlikte doğayı bir bilim adamı titizliğiyle gözlemleyip eserlerinde yansıtan bir yazar olarak Türk edebiyat tarihine damga vurmuştur. Yaşar Kemal 1951-1963 yılları arasında Cumhuriyet Gazetesi’nde fıkra yazarı olarak çalışmış ve röportajlar yapmıştır. Yanan Ormanlarda 50 Gün orman yangınlarına ilişkin bir röportaj dizisi olarak önce gazetede yayımlanmış, sonra da Türkiye Ormancılar Cemiyeti tarafından kitap haline dönüştürülmüştür. Bu çalışma Yanan Ormanlarda 50 Gün adlı eserden yola çıkarak dönemin ormanlar ve ormancılığına ilişkin çıkarımlarda bulunmayı amaçlamıştır. Eserde Akdeniz ve Ege bölgelerindeki ormanların insan eliyle büyük ölçüde tahrip ediliği görülmektedir. Devlet ormancılık işletmeciliği 1937 yılından itibaren başlamış, ancak müteahhit işletmeciliğinin son örnekleri 1945 yılına kadar devam etmiştir. Devlet orman işletmeleri bir yandan üretim yaparken bir yandan da ormanları korumaya çalışmıştır. Ancak bir yandan 1937 öncesi dönemdeki müteahhit işletmeciliğinin izleri diğer yandan kırsal yoksulluk orman tahriplerini devam ettirmiştir. O dönemde ormanı yakarak, ağaçların kabuğunu soyarak, keserek tarla açmak, tapulu kesimler, kaçakçılık ve keçi otlatması ön plana çıkmaktadır.
Erciyes Yöresi Titrek Kavak Meşcerelerinde İlk Aralama Bakımlarının Ekonomik Analizi
Authors: GÜZEL Ali Osman , DAŞDEMİR İsmet
Published: February 2021

Erciyes yöresinde saf, doğal, tek tabakalı, hiç bakım görmemiş, sıklık çağını henüz geçmiş ve ilk aralama çağına ulaşmış yaklaşık 1.468 ha titrek kavak (Populus tiremula L.) meşceresi bulunmaktadır. Bu meşcerelerin silvikültürel açıdan bakıma ihtiyacı vardır. Yapılacak ilk aralama çalışmalarının ekonomik olup olmadığının araştırılması ve işletme ekonomisi bakımından incelenmesi önem arz etmektedir. Bu çalışma, Erciyes yöresindeki titrek kavak meşcerelerine yapılacak ilk aralama müdahalelerini odun üretimi açısından incelemek ve ekonomisini ortaya koymak amacıyla ele alınmıştır. Çalışmada 2017 yılı fiyatları esas alınarak maliyet ve gelir hesapları yapılmıştır. Yapılan müdahalelerde üretilecek ürünlerin maliyet bedeli (MAB) = (TB + FG + DG + SG) x 1,0M formülüyle hesaplanmıştır. Orman Genel Müdürlüğünün 1 m3 lif-yonga kavak odunu için üretim taban fiyatları baz alınarak, farklı uzaklıktaki örnek alanlardaki meşcerelerden elde edilen ürün çeşitlerinin miktarları ve muhammen satış fiyatları belirlenerek gelir tahminleri yapılmıştır. Bilahare gelir ve maliyet karşılaştırılmaları yapılarak titrek kavak meşcerelerine yapılan müdahalelerin ekonomisi ortaya konulmuştur. Araştırma sonunda ilk aralama bakımlarından elde edilecek emvalin lif yonga odunu niteliğinde olduğu, 1 m3 odunun yaklaşık 35 TL bedelle dikili ağaç halinde satıldığı, örnek alanlarda damgalanan toplam 4.370 adet ağacın hacminin 272,83 m3 olduğu ve orman işletmesinin bu üretimden toplam 9.549,05 TL net gelir elde ettiği saptanmıştır. Bu sonuçlara göre Erciyes yöresindeki hiç bakım görmemiş, sıklık çağını henüz geçmiş ve ilk aralama çağına ulaşmış titrek kavak meşcerelerine aralama müdahalelerinin yapılmasının ve odun üretiminin işletme ekonomisi bakımından uygun olduğu ve işletmeye ekonomik bir getiri sağladığı ortaya konmuştur. Ayrıca yapılacak üretim, orman ürünleri sanayinin hammadde ihtiyacının karşılanmasına, odun arz açığının kapatılmasına, istihdam, katma değer yaratılmasına ve böylece ülke ekonomisinin katkı sağlayacaktır.
Türkiye’de Ulusal Ormancılık Politikasının Tarihsel Gelişimi Açısından Bir Dönüm Noktası: 1255 Sayılı Yasa
Authors: ERDÖNMEZ Cihan , YURDAKUL EROL Seçil
Published: February 2021

Anayasa hem ormancılık politikası amaç ve araçlarının çatısını belirlemesi hem de bu araçlardan biri olması bakımından büyük önem taşımaktadır. Ülkemizde ormancılıkla ilgili kapsamlı bir içerik 1961 yılında yürürlüğe giren anayasada yer almıştır. Belirtilen anayasada; ormanların korunması, geliştirilmesi ve gözetiminin devletin görevi olduğu, devlet orman işletmeciliğinin esas olduğu hükümleri ile birlikte ormanların korunmasına yönelik bazı esaslara yer verilmiştir. Ancak bu yaklaşım uzun süre devam ettirilmemiş ve Anayasa’nın 131. maddesi 1970 yılında çıkarılan 1255 sayılı yasa ile değiştirilmiştir. Söz konusu değişiklik ile ülkede ormanların tahrip olmasına ve azalmasına neden olacak yaklaşımlar ve uygulamalar anayasa hükmü haline gelmiştir. Bu çalışmanın amacı, belirtilen yasanın hazırlanması ve yürürlüğe girmesi süreci ile ortaya çıkardığı sonuçları irdelemektir. Çalışmada literatür araştırması ve arşiv taraması ile elde edilen veriler doküman analizi yönteminden yararlanılarak değerlendirilmiştir. Elde edilen bulgular göstermektedir ki, belirtilen anayasa değişikliği toplumsal bir mutabakattan çok siyasi bir tercihin sonucudur. Bilim ve meslek camiası değişikliği kesinlikle onaylamamış, anayasa değişikliğinin TBMM’deki görüşmeleri aceleyle yapılmış, değişiklik yeterli şekilde tartışılmamıştır. Bu değişiklik, gerçekleşme süreci ve sonuçları açısından ulusal ormancılık politikasının dönüm noktalarından biri olmuştur.
Penggunaan Metode Peer Teaching Dalam Meningkatkan Keterampilan Siswa Dalam Menulis Teks Prosedur di Kelas VII-1 SMP Negeri 9 Batam Tahun Pelajaran 2017/2018
Authors: Desmi Desmi
Published: February 2021

Keterampilan menulis teks prosedur siswa kelas VII-1 SMP Negeri 9 Batam masih belum maksimal. Hasil tes awal yang dilakukan oleh peneliti menunjukkan hasil menulis teks prosedur siswa masih rendah. Hal ini diketahui 75% siswa belum mencapai KKM, hanya 25% siswa yang sudah mencapai KKM dan mampu menulis teks prosedur sesuai dengan langkah-langkah menulis teks prosedur. Dari hasil tes menulis teks prosedur menunjukkan bahwa siswa kurang memahami materi tentang langkah-langkah menulis teks prosedur. Pada pra siklus di hasilkan skor observasi 79 artinya ketrampilan siswa dalam menulis teks prosedur kurang baik. Selanjutnya peneliti merasa begitu penting untuk melaksanakan penelitian dengan menggunakan metode Metode peer teaching. Pada siklus I Hasil observasi menunjukkan skor 161 artinya ketrampilan siswa dalam menulis teks prosedur cukup baik. Akan tetapi agar lebih kondusif lagi ketrampilan siswa dalam menulis teks prosedur maka peneliti hendak melaksanakan siklus II. Pada siklus II Hasil observasi menunjukkan skor 210 Artinya Ketrampilan siswa dalam menulis teks prosedur sangat baik.  Pada kegiatan observasi peserta didik, guru menilai bahwa Siswa dapat menyusun struktur teks teks prosedur dengan lengkap, Siswa dapat menyimpulkan prinsip penggunaan kata/kalimat/paragraf pada teks prosedur, Siswa dapat membuat teks prosedur dengan gagasan yang jelas, Siswa dapat menentukan dan memperbaiki kesalahan penggunaan tanda baca/ejaan dan Siswa dapat menulis teks prosedur dengan tepat.
Efektifitas Media Pembelajaran Melalui Model Discovery Learning terhadap Minat dan Hasil Belajar Peserta Didik SDN 193 Pekanbaru
Authors: Najmi Hayatun , Cicilia Yayuk , Vebrianto Rian
Published: February 2021

This study aims to determine the effect of the use of science learning media on discovery learning models on the interests and achievements of student learning outcomes in alternative energy materials. This study uses an experimental method, the sample consists of 2 classes, cognitive learning achievement data using tests, affective aspects of learning achievement using a questionnaire, hypothesis testing using the right-hand t-test. The data analysis technique used is the n-gain test and independent sample t-test using SPSS version 16.0. The results showed that students who were taught using science learning media on discovery learning models gave a good influence on students' interest and learning achievement better than students who were taught the lecture method. Students with high learning interest produce better average achievement than students with low learning interest, and there is an increase in student learning achievement using learning media
Kompetensi Bahasa dan Kompetensi Komunikatif Peserta Didik
Authors: Padri Meimus , Cicilia Yayuk , Nursalim Nursalim
Published: February 2021

In everyday life, someone's language competence is very necessary. Language competence is one's mastery of the content contained in the language learned. Without language competence a person becomes irregular in language. The purpose of this study is to explain and find out about language competence or language skills and communicative competencies or one's appearance in interacting in language. Communicative competence concerns the social and cultural knowledge that speakers have to help them use and interpret linguistic forms. The problems that will be answered in this study use library research, which will answer what are the components and language competencies. Data collected from various references; both primary, secondary and supporting data. The results of the study show that there are five language competencies according to Canale and Swain namely linguistics, socio-linguistics, speech acts (speech acts), speech sets, strategies. In language competence one must master language skills, namely listening, speaking, reading and writing.
Upaya Meningkatkan Hasil Belajar Ekonomi Dengan Menggunakan Model Belajar Kooperatif Teams Games Tournament (TGT) di Kelas XI IIS2 MAN-1 Pekanbaru Tahun Pelajaran 2017-2018
Authors: Ermayulis Syafni
Published: February 2021

Pendidikan  merupakan kegiatan untuk membantu perkembangan peserta didik mencapai tujuan-tujuan pendidikan. Kegiatan pendidikan berintikan interaksi antara peserta didik dengan pendidik dan sumber-sumber pendidikan lain, dan berlangsung dalam suatu lingkungan pendidikan. Peningkatan kualitas pendidikan harus terus dilaksanakan salah satunya dengan penggunaan berbagai model pembelajaran. Salah satu model pembelajaran yang dapat dikembangkan untuk meningkatkan hasil belajar adalah model Teams Games Tournament (TGT). Pelajaran ekonomi sebagai salah satu mata pelajaran wajib bagi siswa jurusan iis juga memerlukan inovasi model pembelajaran agar meningkatkan capaian hasil belajar. Penelitian ini bertujuan untuk melihat peningkatan hasil belajar siswa kelas XI IIS2 MAN-1 pada pelajaran ekonomi dengan menggunakan model pembelajaran Teams games tournament. Jenis penelitian yang dilakukan adalah penelitian tindakan kelas. Penelitian dilakukan dalam 2 siklus yang masing-masing terdiri dari empat tahapan, yaitu :1) perencanaan. 2) pelaksanaan.  3) pengamatan. 4) refleksi. Penelitian dilakukan pada bulan januari-februari 2018. Siklus pertama dilakukan dalam 3 kali pertemuan dan siklus ke 2 dilakukan dalam 3 pertemuan. Hasil penelitian menunjukkan bahwa terjadi peningkatan ketuntasan hasil belajar sebesar 26, 8% dari siklus 1 ke siklus 2. Kategori pengetahuan juga meningkat sebesar 57,3 % pada kriteria amat baik dan baik dari siklus 1 ke siklus 2.
Model Bacaan Anak Berbasis Kearifan Lokal
Authors: Nursalim Nursalim
Published: February 2021

This paper is generally aimed at generating an innovative multicultural-based learning model that meets the basic educational goals that can be used in schools and madrasah. Multicultural-based learning model in the form of preschool children's reading models, traditional literature, fiction, biography and autobiography, science, poetry and poetry. Reading is based on local wisdom is a reading about the cultural life of the surrounding community or area of education location. Writing a local-based story is an open story of local cultural themes. Local-based education is education that utilizes local and global advantages in economic, arts and cultural aspects, human resources, language, information and communication technology, ecology, etc. into the school curriculum which ultimately benefits the development of competencies of learners that can be utilized for competition global. Local wisdom sources are human potential, religious potential, cultural potential. While the purpose of local wisdom-based education or the advantage of providing knowledge, skills and behavior to learners so that they have a solid insight about the state of the environment and the needs of the community in accordance with the values / rules prevailing in the region and support regional development and national development. While the specific purpose of local wisdom-based education is so that students more familiar with and become more familiar with the natural environment, social, and cultural. Students have the provision of skills and knowledge and knowledge about the area that is useful for themselves as well as the community in general. Students have attitudes and behaviors that are in harmony with the values / rules that apply in the area and preserve and develop the noble values of local culture in order to support regional development and national development.
Pembelajaran Berbasis Masalah sebagai Salah Satu Upaya Meningkatkan Kemampuan Analisis dan Penalaran Peserta Didik
Authors: Nasution Efideswati
Published: February 2021

Education aims to develop the potential of students to become quality human resources. The implementation of education takes place in a learning activity. Through the learning process there will be changes, development, progress, both in terms of physical, motoric, intellectual, social emotional and attitudes and values. One of the abilities that must be developed is the analytical and reasoning skills of students, because it will be used in solving problems in everyday life. This article aims to analyze an effective learning model to improve the analytical and reasoning skills of students. This research is a literature study. Analysis of effective learning models to improve the analytical and reasoning power of students is drawn from various references and research results. It was found that one of the learning models that can improve analytical and reasoning skills is the problem-based learning model. Problem-based learning uses a variety of intelligences needed to confront the real world. Problem-based learning is an innovation in learning because in PBL the thinking ability of students is really optimized through a systematic group or team work process so that students can empower, hone, test and develop their thinking skills on an ongoing basis.
Analisa 5S pada Lantai Produksi PT. Sutra Benta Perkasa
Authors: Siska Merry
Published: February 2021

PT. Sutra Benta Perkasa merupakan salah satu perusahaan manufaktur yang bergerak dibidang percetakan dan penerbitan dimana hasil dari produksi tersebut berupa buku melayu, buletin teladan, dan majalah dinamis. Motivasi dan kenyaman para pekerja merupakan salah satu faktor yang perlu diperhatikan agar kegiatan produksi berjalan dengan efektif dan efisien. Agar meningkatnya motivasi para pekerja, tentunya pabrik ini menciptakan suasana lingkungan kerja yang aman, nyaman, efektif, dan efisien sehingga mampu bertahan dan bersaing dengan perusahaan pengolahan kelapa sawit lainnya. Oleh karena itu, dalam upaya meningkatkan produktivitas dengan memperhatikan aspek lingkungan kerja pada setiap stasiun kerja, perusahaan perlu evaluasi lingkungan kerja dari aspek 5S (Seiri, Seiton, Seiso, Seiketsu, dan Shitsuke). Dengan tujuan untuk memberikan usulan perbaikan berdasarkan aspek 5S pada lantai produksi, tempat pembungan limbah, dan tempat penyimpanan peralatan.Penelitian ini adalah berjenis deskriptif murni, karena dalam penelitian ini tidak dilakukan perancangan dan penerapan pada perusahaan. Variabel yang digunakan dalam penelitian ini adalah metode 5S (Seiri, Seiton, Seiso, Seiketsu, dan Shitsuke). Sumber data yang digunakan untuk mengumpulkan data melalui observasi dan wawancara kepada pihak perusahaan baik pimpinan dan karyawan. Analisis yang dilakukan pada PT. Sutra Benta Perkasa berdasarkan aktivitas Seiri, Seiton, Seiso, Seiketsu, dan Shitsuke. Hasil dari penelitian menunjukkan bahwa pada lantai produksi, tempat pembuangan limbah, dan tempat penyusunan peralatan belum sesuai dengan aktivitas 5S secara optimal, dan diberikan usulan perbaikan yang harus diimplementasikan oleh pihak perusahaan agar pencapaian 5S dapat dioptimalkan.
Analisa Beban Kerja Mental Operator Mesin Dryer Bagian Auto Clipper dengan Metode NASA-TLX
Authors: Silvia Silvia
Published: February 2021

PT. Asia Forestama Raya merupakan sebuah industri yang memproduksi plywood untuk ekspor maupun lokal. PT. Asia Forestama Raya beralamatkan di Kelurahan Limbungan, Kecamatan Rumbai Pesisir, Kota Pekanbaru. Penelitian ini dilakukan terhadap operator mesin continiuos dryer dibagian auto clipper, dimana pada mesin ini terdapat 3 tingkat auto clipper yang masing-masing memiliki satu operator setiap tingkatnya. Dari hasil observasi yang dilakukan di PT. Asia Forestama Raya tersebut maka dapat diketahui bahwa pekerjaan yang dilakukan operator auto clipper membutuhkan fokus dan ketelitian yang tinggi, dan juga dalam bekerja dituntut menghasilkan produk sesuai permintaan perusahaan, pekerja harus bekerja selama 11 jam tanpa istirahat. Tugas utama dari operator auto clipper adalah mengukur hasil potong veener dari mesin sesuai permintaaan dan menstabilkan operasional mesin. Dalam melakukan tugasnya operator tesebut dituntut oleh perusahaan untuk dapat meneyelesaikan pekerjaan sesuai dengan target yang telah ditentukan oleh perusahaan, dan juga produk yang dihasilkan harus sesuai dengan standar yang diminta oleh perusahaan, dengan adanya target yang diberikan oleh perusahaan tersebut operator menjadi tertekan ketika bekerja, karena jika produk yang dihasilkan tidak sesuai dengan yang diminta maka perusahaan akan mengalami kerugian. Tujuan dari penelitian ini adalah untuk mengetahui tingkat beban kerja mental dari operator mesin continiuos dryer  bagian auto clipper PT. Asia Forestama Raya dengan menggunakan metode NASA-TLX, yang diukur melalui 6  indikator yaitu kebutuhan fisik, kebutuhan mental, usaha, tingkat frustasi, kebutuhan waktu, dan performansi. Dari hasil pengukuran terhadap 6 orang operator auto clipper mendapatkan nilai WWL masing-masing 82,67; 83,34; 87,34; 86 yang tergolong dalam kategori sangat tinggi dan 77,34; 79,34 yang tergolong dalam kategori  tinggi dengan faktor dominan yaitu faktor kebutuhan fisik, kebutuhan  mental dan performansi. Berdasarkan faktor dominan tersebut maka dilakukan analisa menggunakan fishbone diagram untuk mengetahui akar penyebab tingginya beban kerja mental pada operator auto clipper. Pada faktor kebutuhan fisik penyebabnya karena kondisi pekerja yang berdiri selama 11 jam tanpa istirahat, faktor kebutuhan mental penyebabnya karena tuntutan dan target dari perusahaan yang tinggi, dan faktor performansi disebabkan karena faktor umur operator yang diatas 40 tahun sehingga tingkat ketelitian dan fokus dalam bekerja menjadi berkurang.
Optimalisasi Biaya Distribusi Beras Subsidi Dengan Model Transshipment
Authors: Muhamad Gumilar Nur
Published: February 2021

Salah satu masalah transportasi dalam studi kasus ini adalah distribusi beras bersubsidi. PT. XYZ ingin mendistribusikan barang-barangnya dengan biaya minimum. Oleh karena itu, perlu untuk menyelesaikan masalah transportasi menggunakan model transshipment sehingga optimasi biaya distribusi dapat direalisasikan. Solusi untuk masalah transportasi dimulai dengan mengubah tabel transportasi ke tabel transhipment kemudian menemukan solusi menggunakan aplikasi LINGO. Hasil penelitian ini menunjukkan bahwa beras bersubsidi harus dikirim oleh setiap distributor ke agen di desa dengan tujuan optimal dan biaya pengiriman sebesar Rp. 18.317.000.
Proposed Marketing Strategy for Freight Services Based on Consumer Preferences and Perceptions with the Multidimensional Scaling Method
Authors: MAIROZA DELFI
Published: February 2021

This research is one of the freight forwarding companies in Indonesia to various regions or cities. However, the presence of many freight forwarding companies has caused many competitors to make it less a priority for SMEs to deliver goods. The purpose of this study is to design a marketing strategy for freight forwarding services based on consumer preferences and perceptions. The method used in this research is Multidimensional Scaling. This method is one procedure for classifying consumer preferences and perceptions based on visual similarities in a geometry. The results of this study are in the form of a proposed marketing strategy for freight forwarding services based on the 7P (Marketing Mix) mix concept.
Analisa Karakteristik Mekanis dan Tekno Ekonomi Pembuatan Komposit Batu Bata Merah dari Limbah Gergaji Kayu Karet
Authors: Taslim Rika , Hasan Inamul , Hartati Misra , Siska Merry , Hamdy Muhammad Ihsan
Published: February 2021

Inovasi dalam pembuatan batu bata saat ini memiliki tantangan semakin berkurangnya ketersediaan bahan material dasar tanah lempung sebagai bahan utama pembuatan batubata merah sebagai material utama pembangunan perumahan. Untuk menyiasati hal ini, diperlukan suatu alternatif bahan material komposit untuk mengimbangi laju permintaan batu bata yang berakibat pada laju pemakaian bahan dasar tanah lempung dalam produksi batubata merah. Untuk itu penambahan limbah biomassa berupa serbuk gergaji kayu karet dianggap sebuah solusi untuk memproduksi komposit batubata merah berbasis biomassa. Dalam kajian ini, produk komposit serbuk kayukaret dengan tanah lempung menjadi batu bata merah diteliti nilai karakteristik mekaniknya.Proses pembuatan batu bata merah dengan tambahan limbah kayu karet dilakukan dengan metode desain ekperimen dengan beberapa pengujian seperti :(i) uji kuat tekanan dimana hasil terbaik sebesar 61,98% dan termasuk standar SNI mutu kualitas III dan (ii) uji serap air, diperoleh nilai daya serap air terendah sebesar 21,75% dengan tambahan 5% serbuk kayu karet. Untuk Harga pokok produksi batubata komposit ini diperoleh sebesar Rp. 232/unit lebih rendah dibandingkanharga bata konvensional yaitu sebesar Rp.250/unit. Break Even Point diperoleh sebesar 3981 unit selama 4 bulan dan sangat menguntungkan jika diproduksi. Kata kunci:  Batu Bata Merah, BEP, Desai Eksperimern, HPP.
Penerapan Sistem Informasi Pengelola Rantai Suplai (SI-PRS) dalam Mendukung Kegiatan Disektor Hulu Migas
Authors: Deftya Zahra Putri , Sari Santika
Published: February 2021

Pelaksanaan Pengadaan Barang dan Jasa adalah memperoleh dan menggunakan produk yang diperlukan dalam jumlah, kualitas, harga, waktu dan tempat secara tepat, efektif, efisien dan bertanggung jawab. Tujuan dari penelitian ini adalah untuk mengetahui kualitas sistem informasi dan memberikan kemudahan terhadap kepuasan dalam menggunakan aplikasi SI-PRS (Sistem Informasi Pengolahan Rantai Suplai). SI-PRS adalah aplikasi untuk mengelola pengadaan, rencana tender, hasil pelaksanaan tender, perubahan ruang lingkup pekerjaan dan laporan salinan kontrak dalam mendukung perusahaan SKK Migas. lebih lanjut, penelitian ini menyebarkan kuesioner dan analisis untuk mengukur perspektif pengguna dalam penggunaan SI-PRS dengan jumlah sampel 38 orang. beberapa pengujian meliputi uji validitas, uji reliabilitas, uji normalitas, uji multikolinearitas, uji heteroskedastisitas, uji t, uji f dan regresi linier untuk menentukan kepuasan pengguna SI-PRS.  Kesimpulan penelitian ini menunjukan bahwa variabel Kualitas Sistem (X1), variabel Format(X2) dan Variabel Kemudahan (X3) secara parsial berpengaruh signifikan dan berpengaruh positif terhadap Kepuasand User (Y). kemudian, variabel X yang sangat dominan terhadap variabel Y (kepuasan user) adalah variabel kemudahan sebesar 42,6%. Kata Kunci:  Sistem Informasi, Kualitas Sistem, Format, Kemudahan
Reliability Centered Maintenance pada Komponen Kritis Mesin Press di PT.Pulau Sambu Kuala Enok
Authors: Anggraini Wresni , Fachri Muhamad , Yola Melfa , Harpito Harpito
Published: February 2021

Studi kasus penelitian ini pada perusahaan yang bergerak dalam bidang industri pengolahan kelapa menjadi minyak. Saat proses produksi berlangsung sering mengalami hambatan atau aktivitas yang merugikan perusahaan seperti gangguan kerusakan mesin secara tiba-tiba. Diketahui pada mesin press sering terjadi kerusakan sehingga berdampak pada tidak terpenuhinya target produksi perusahaan. Tujuan penelitian ini adalah memberikan usulan perawatan pada komponen kritis mesin press. Metode yang digunakan adalah Reliability Centered Maintenance, dengan melakukan analisa kehandalan dan mengetahui nilai waktu rata-rata kerusakan (MTTF) pada komponen mesin dan membuat penjadwalan untuk perbaikan dan penggantian komponen kritis mesin. Perhitungan perbaikan mesin press dengan menentukan komponen kritis dari masing-masing komponen mesin press dengan metode FMEA dan menentukan nilai RPN. Berdasarkan hasil pengolahan diperoleh 4 komponen kritis untuk dilakukan penjadwalan yaitu waktu penggantian screw selama 276,09 jam sekali pergantian, Komponen cagebar dengan waktu 279,09 jam sekali pengecekan dan penggantian, komponen kopling dengan waktu 316,32 jam sekali pergantian dan komponen bearing dengan waktu 347,6 jam sekali pengecekan dan pergantian.  Kata kunci:  Perawatan, kehandalan, komponen kritis, RCM ,MTTF
Strategi Pemasaran Islami dalam Meningkatkan Penjualan Produk dengan Metode Analisis Matrik BCG dan SWOT pada UKM Dilloka Pekanbaru
Authors: Permata Ekie Gilang , Suherman Suherman , Aini Rahmi
Published: February 2021

Startegi Pemasaran dapat menentukan tujuan perusahaan dalam mengambil kebijakan dan aturan yang dapat memberikan arahan sebagai tanggapan perusahaan dalam menghadapi lingkungan dan keadaan pesaing yang selalu berubah. Studi kasus ini pada perusahaan produksi berbagai macam hijab. perusahaan ini memiliki penjualan yang fluktuasi karena pemesanan konsumen yang tidak menentu setiap tahunnya dan munculnya pesaing dengan jenis hijab yang sama. Melihat banyaknya pesaing maka perusahaan ini harus mengetahui kondisi perusahaan dengan perhitungan matrik BCG dan mengetahui faktor eksternal (EFE) dfaktor internal (IFE) untuk menghadapi persaingan dengan hasil analisis SWOT. Hasilnya perusahan ini berada pada posisi Qustion Mark pada matrik BCG dengan tingkat pertumbuhan pasar 21% dan pangsa pasar relatif 0,69. Pada hasil perhitungan matrik IE perusahaan ini berada pada kuadran II yaitu perusahaan harus melakukan strategi tumbuh dan membangun. Hasil analisis SWOT dilakukan berdasarkan salah satu sifat nabi Muhammad adalah tabligh (menyampaikan). Kata Kunci:  Strategi Pemasaran, Matrik BCG, analisis SWOT
PENERAPAN KONSEP NILAI MUTLAK DALAM PERSAMAAN DAN PERTIDAKSAMAAN LINIER MELALUI PEMBELAJARAN QUANTUM TEACHING MATA PELAJARAN MATEMATIKA DI SMA
Authors: Pardede Jannes
Published: February 2021

Abstrak: Tujuan penelitian tindakan kelas ini adalah  ingin mengetahui peningkatan prestasi belajar siswa melalui pembelajaran Quantum Teaching bagi siswa SMA Negeri 1 Sitahuis . Hasil penelitian ini menunjukkan bahwa ketuntasan belajar dalam pembelajaran pokok bahasan Persamaan Linear dalam konsep nilai mutlak yakni pada siklus I secara klasikal terdapat 14 siswa dan 25 siswa atau 56%  yang mencapai ketuntasan belajar dan 11 siswa dan 25 siswa atau 44% tidak mencapai ketuntasan belajar. Sedangkan pada siklus II hasil belajar siswa mengalami peningkatan secara klasikal yakni terdapat 23 siswa dan 25 siswa atau 92% yang mencapai ketuntasan belajar dan 2 siswa dan 25 siswa atau 8% tidak mencapai ketuntasan belajar. Kata Kunci: nilai mutlak dalam persamaan dan pertidaksamaan linier, matematika, pembelajaran quantum teaching Abstract: The purpose of this class action research was to determine the increase student achievement through learning Quantum Teaching for students of SMA Negeri 1 Sitahuis . The results of this study indicate that mastery learning in teaching the subject of Linear Equations in the concept of absolute value that is in the first cycle in the classical there are 14 students and 25 students or 56% who achieve mastery learning and 11 students and 25 students or 44% do not achieve mastery learning. While on the second cycle learning outcomes of students has increased in the classical style that there are 23 students and 25 students or 92% who achieve mastery learning and 2 students and 25 students or 8% do not achieve mastery learning. Keywords: absolute value in linear equations and inequalities, mathematics, learning quantum teaching