bluuebunny/crossref_metadata_2025 huggingface dataset:
Kualitas Pelayanan Pengguna Jasa Kereta Api Dalam Transportasi Antarmoda Di Stasiun Gambir
Authors: Gusleni Yessi
Published: October 2019

TI1is research /ms the purpose to know the perceptio11s, e:rpectations, rznd the effecti7.1eness of thequalihj of intemwde transport seruice i11 Gnlllhir stations prm 1irfed hi; PT. Keretn Api (Persero) rzndthe local government of DKJ fnkartn.TI1is research will be done by through a survey methods. Number of samples has been taken atrandom study from a 100 respondents simple. Attribute of the observation are as many as 27attributers of sennce-related to infrastructure, network infrnstructure, operational, and human resources.Resenrclz data in tile descripti7.:ie nnnlysis nnd the senrice qunli~; measuring metlwds includethe reliability, responsir!fness, nssumnce, emplmty, and tangible.From 2 7 nttributes that /un ,e rz lziglz expected mlu.e is the ense of obtaining information routes/busroutes for mil senrice users in intemwde of transport, officers ready to help the train seroi.ces userintermodes of transport, security guamnteess for milway seruice user in intermodes of transport, staffpromde services to train users wlw have limited (disabled, elderly, etc), and security officers, while thepassengers w/w do not satisfi; the sennce quality attnbutes is the ease of obtaining information routes/bus routes for rail seniice users intemwde of trnnsport, sernrity guarantees for milwm; sennce usersin the intemzode of transport, officers prouide sen1ices to train sen1ice users who /un 1e limited (disables,elderly, etc), nnd transport of goods (trolly). Tiie le7.iel of total rnstomer satisfaction is 65,51 %means that the variable qualihj of senrice can not offer the satisfaction of being on the range index ofpoor (64%Xd"71 %).Key word : qualihJ of sennce, internwde
Pengembangan Logistic Center Di Indonesia
Authors: Sitorus Panal
Published: October 2019

Same problems of mrgo nwuement in Indonesin, among others not yet just in time sennces, not doorto door deliven;, the process of loading and unlonding at the port 5.5 clm;s, congestion, warehousingis Jar and spread mum; from the locntion of ports, industries and is still managed in conventional.Indonesw is in a position not competiti11e in tenns of Li:Jgistic Performance Index, which in 2007occupied the position 43 (score 3.01) from 150 countries. Research metlwds to obtain an opinion orperception of respondents with sampling techniques are purposively. Instntment of analysis is Importanceand Performance Analysis. Results of analysis showed that logistic cent.er meet the criteria.,connected 1mth the transportation SIJSfems, should the wide land area located near the harbor, connectedto the container terminals, high container slzip capacihj, minilnbilihJ of prinzan; commodities,advanced of infomzation and communication teclznologies.Keywords: wgistic cent.er development.
Kajian Pemindahan Penumpukan Peti Kemas (Overbrengen) Ke Tempat Penampungan Sementara Di Pelabuhan Tanjung Priok
Authors: Khafendi Khafendi
Published: October 2019

Port ofTanjung Priok, including the Jakarta International Container Terminal (JICT) and TerminalContainer (TPK) Koja is still ouersluuiowed lnj the potentinl density of container, container imports,especial.Ly in the yard because of among others, the ourners of the goods out slow and limited goodspage and ease of transportation where . bemuse of slow spending container and goods, especiallyimports of container. Page Contniner capacity is not proportional to the volume of imported goodsthat come in, so that the Yard Occupanci; Ratio (Jordan) could not be maintained in safe condition, sothat the importer is required to delete or mmJe a crate container page (cnJerbrengen)Causes of densiti; in the yard, especially on big dm;s like Eid, because, many basic needs before majorJwlidm;s or dm;s, as ItJell as a large carrier equipment (trucks) are forbidden to operate on the mainroad or track bnck and forth before the lwlidny or dny large/ Eid lwlidm;s and after (H-7 and H +),research was conducted with the compamtin~ 111et/10d to the field cumulation in when the big dm; andduring a nonnal dm;. To cnJercome the density of buildup, it slwuld be done several wm;s, amongothers, ln; the removal of container from page to another place (cnierbrengen) and increase the accumulationof container faci.lities at the port.Keywords : Container yard, Overurengen
Integrasi Angkutan Keretaapi Dengan Bus Damri Di Stasiun Tugu Yogyakarta
Authors: Lestari Sri , Atun Sri
Published: October 2019

Yogi;akarta cihj is one of the tourist cihj and a universihj to11m and a cih; full of culture that hard tobreak, other than within the cih;, as well as tourists from abroad and students wlw want to registersclwols that migrate out of population yogi;aknrtn yogyaknrta with routine e7.1en; Idul Fitri, flockflocked to visit nyeknr fogjaknrtn . One of tile 11zo1ks arf' quite populnr and beazme tlze people's choiceis rail, because beside the railwm; is a mode of mass transit modes of transportation also has someadvantages safe, comfortable, safe and timely when compared with other transportation modes.Yogi;aknrta Tugu station to sen1e several hjpes of rail freight business executives and train withpassengers on auerage each dm; to reach 6.5 t/wusand passengers, especially on big dm;s and weeksand, with the number of passengers, the passengers off the train modes require continued until hereached the final destination, especially passengers wlw headed jogja town with a bus transportationmodes, especially road Oamri. One of tlze expected proficienci; le7.1el in these sulusi overcome theMunicipal Government of Yogi;aknrtn (Yogi;aknrtn Transportation AgenCIJ) with PT. Rnilwm;s andPerum Oamri cooperation provided means of road transport continued until he reached the finaldestination of the integration of rail with bus transportation Oamri.
Analisis Pilihan Transportasi Mudik Lebaran Tahun 2010 Masyarakat Jabodetabek
Authors: Soedomo R Pramono
Published: October 2019

Mobilihj of fIDPle and zehides at the !"ilme tin Te requires dwices of transport modes in accordance with theneeds of prosrffiive ~lers widths. Through the methodologtj of Analytic HierardnJ Process (AHP),the mapping needs of transportation modes in accordance with the criteri£Z of Safe, Fast and Inexrmsize.Selected ~s of tran5JX!rfation modes is a primte ziehicle, public bnnsport, trains, ships and aircraft.T71e results shmim 755 rx:rcent of 330 resp'.mdents c/10[£ Safe criteria, 14.8 rrrcent dm: ti1e criteria of fastuntil tiie gml., and 9.7 -,xrcent d~ the trip 7lrith n relntirely low rost. From the~ of tiie safest typ?s oflnms]XJrt, reSfXJndents d~ the milwm;s in the first rmzk 1l'itlz n tvtnl of 41.6 ~cent of rf5/Xnulents. Rankednumler two pm:ate z~hides wit/1 31.9 rx:rcent of resp:mdents. While the criteria fur Fast, ranking first was tire56.4 rx:rcent of the Aircraft and Rail.wen; witi1 a mlue of 18.5 rx:rcent. 07eap As fur criteria, tire first rankRail.11XllJS 47.8 rx:rcent and 25.7 rx:rcent fur pm:ate zehicles.'With ti1e election of Rail.7lXl1J transrxJrtation mode as a mode that gets first priari.hJ in terms of fRCUrity, lowprices and fast, it is rerommended that facilities and infmstn1cture, infmstructure p;rkerafilapian a priorityto be imprmied, induding sen~s t.a ti1£ co11111111ni0;. In nrfditio11, wpnir nnd maintenmzce of roads andbridges prepired long tmck lxlck nnd forth Jar days befim: gmng lzo111e ru:tiuities tnke pince, need to test tirepoliaj rejurm and increased motor vehicle taffic suμmrisian kendnmman on public roads.
Ringkasan Studi Sinergi Antara Jaringan Kereta Api Perkotaan Dengan Properti Pemukiman
Authors: Kuswati Atik S
Published: October 2019

Kinds of urban transportation policy are used to overcome public transportation's problemin big cities. One of them is the development of public transportation based on railways.This policy has already implemented in J abodetabek as public transportation besides buses.The potency of J abodetabek railways development can be seen from the trends of passengersand land use patterns. In addition, the synergy of settlement area in cities and railwaysdevelopment can be seen as potency as well. The cooperation between PT.KA and privatecompanies has already exists and can be improved by considering the potency. The growthsof those settlements area refers to the regional planning which can take advantage fromthe railways track through on the area, conversely PT.KA will gain profit from the passengerswho stay in that area. This matter is explained in the study of The Synergy of UrbanRailways Network and Settlement Property conducted by Research and Development ofTransportation Agency in 2008.
Kajian Pengembangan Aplikasi Sistem Informasi Jabatan Fungsional
Authors: Hutapea Sabungan Halomoan , Sinaga Rosita
Published: October 2019

The lnfonnation and data center (Pusdatin) ofT71£ Ministry of Transportation has developed personnelinformation StJSfem to meet the needs of infonnation of Personnel Bureau of Ministn; of Transportation.T1ie llVlilability of information prepared btJ Pusdatin, has not yet meets tliese needs particularlyabout researcl7er's functional position.The proress of achieving functional position follows tl1£ applied rules and procedures, and involvesmany related agena; whiclz is timely consumed nnd d~fjirnlt to monitor numunlly.We shouldn't Jun~ faced tl10se problems in this web based infomuition technologtj era.The development of data base to support 1reb based infonnation is expected to provide reliable, quickinformation, and also simplicity in monitoring tlie process.This studt; is a researcl1 on data base conrept nnd derielops an application, which will be implementedto pT01ii£le n~b based infon1llltion relnted to nsenrcher's fimctionnl position. 77ie der~loped applicationuses Database MySQL nnd programming in: PHP mid HTML.The result of this studt; can be acassed from internet: http;//andwah2freehostia.com
Kahan Peningkatan Struktur Jalan Rel Dalam Rangka Menambah Frekuensi Pelayanan Angkutan Kereta Api Lintas Jember-Banyuwangi
Authors: Rahayu Siti , Sianipar Arbi
Published: October 2019

In order railway revitalization in Java Island and increasing of regional autonormJ are requiredresearches which could raises potential area supported by mode transport reliability.]ember is a producing regions of tobacro, coffee, resin, plate stone which located in DAOP 9 /emberand not supported road transport yet, operational performance is decreasing caused btj field constraints,"both infrastructure and supporting infrastructure nor its means.This research use field observation method, grmvth-demand analysis and doing calculation based onJormu.las railwmj technique which the result described as description.The result of this research shmvs if R.33 and R.42 wood/iron sleeper replaced with R.54 concretesleeper that securihj, safehJ and comfortable im.11 be better, Jember-Kalisat passed with maximumspeed 41,5 kmjhour could be 120 km;haur, Kalisat-Kalibaru passed with maximum speed 38,2 km/hour could be 80 kmjhour, Kalibaru-Temuguruh passed with maximum speed 48 km;haur could be110 kmjhour, Temuguruh-Banyuwangi Baru passed with maximum speed 64,7 km;haur could be120 kmjhour. Average of frequencij is nmv just 16 train set/datj will be 100 train set/datj, it meansjournei; from /ember to Banyuwangi will be passed in an hour and half hourKey Word: Increasing rail structure
Kajian Upaya Peningkatan Pelayanan Angkutan Antarmoda Di Jakarta
Authors: Suliyanti Rini
Published: October 2019

Higlrwai1 transportation StJStenz disruption due to the lzigh lerel of complexihJ is the potential complexihJof the problem of transportntion in Greater ]nknrtn mncro is ven1 large.To increase inter-mode transport senrice ns nn impl.emelltntion of the mncro problem of transportationin Greater Jnknrta have made n pattern of policies tluzt support, including transportation demandmanagement, appropriate land use planning, economic instruments, integration of transport modeswith no motor, mvareness and public support, sustainabilihJ funding ..Transportation StJStem a few countries am provide some possible solutions to tackle the problem oftransportation in Greater Jaknrta mncro abaue is to reduce primte 11ehicle, expand road capacihj,imprauing infmstn1cture facilities 111lzic11 must be inrfepe11rfent PT.KAI 7lrith n snuzll subsidy, increasingthe number of public transport, nlllt Suc/1 entrepreneurs prmride softloon to this public vehiclessuch as Metromini, PPD, Mmjasnri de11otion, Ferris, Kopnja so that it can renew its fleet and able tomanage as a feeder of the buswai; StJStem.Keywords: Pattern Policies tlmt support inter-mode transport sennce improvement, Qualitative Annlysis
МЕДИЧНА ПІДСИСТЕМА СОЦІАЛЬНОЇ ІНФРАСТРУКТУРИ РЕГІОНУ ЯК ДОМІНАНТА ФОРМУВАННЯ ЛЮДСЬКОГО ПОТЕНЦІАЛУ
Authors: Revko Alona
Published: October 2019

Стаття присвячена дослідженню системи охорони здоров’я як домінанти формування та розвитку людського потенціалу регіону. Визначено основні компоненти медичної інфраструктури регіону. Проведено порівняльний аналіз динаміки кількості лікарських амбулаторно-поліклінічних закладів та видатки на охорону здоров’я в Польщі та Україні. Досліджено стан кадрових ресурсів системи охорони здоров’я України та Польщі в регіональному розрізі. Доведено, що кадровий потенціал є вагомою складовою ресурсного забезпечення системи охорони здоров’я. Визначено головні напрямки розвитку медичної інфраструктури України в умовах трансформаційної економіки.
ПРОБЛЕМИ ТА ПЕРСПЕКТИВИ РОЗВИТКУ БАНКІВСЬКОГО ІПОТЕЧНОГО КРЕДИТУВАННЯ ФІЗИЧНИХ ОСІБ В УКРАЇНІ
Authors: Davyduk Alexander
Published: October 2019

У статті представлено результати аналізу стану іпотечного кредитування в України з виділенням ключових проблем, що не дозволяють іпотечному ринку розвиватися та підвищувати доступність для громадян країни. Вивчено стан банківського іпотечного кредитування в Україні з визначенням сучасних тенденцій розвитку такого напрямку та ключових проблем, що призводять до недоступності банківських кредитів для населення держави. На основі визначених проблем функціонування банківського та державного напрямків іпотечного кредитування в Україні запропоновано напрямки щодо поліпшення ситуації та розвитку іпотечного ринку в Україні.
Aneurisma de artéria renal: uma revisão da literatura
Authors: Aragão Iapunira Catarina Sant'Anna , Aragão Felipe Matheus Sant’Anna , Lustosa André Luis Morelli , Pereira Pedro Caldas , Torres Priscila Almada , Faria Lívia Silva de Paula , Aragão José Aderval , Cunha Marcos Guimarães de Souza
Published: October 2019

Resumo: Esse artigo buscou discutir, através de uma revisão bibliográfica, a prevalência de aneurismas de artérias renais (AARs), seus fatores de risco, além dos melhores métodos diagnósticos, implicações clinicas, epidemiologia e tratamento cirúrgico, visando uma atualização de dados, principalmente, para os profissionais que atuam nesta área. 13 artigos foram selecionados e lidos na íntegra para compor os dados desta pesquisa. Os aneurismas de artéria renal são patologias bastante incomuns, e normalmente se manifestam de forma assintomática. Desse modo, o diagnóstico ocorre, principalmente, de maneira incidental, sendo a angiografia por ressonância magnética (Angio-RM) o método não-invasivo de eleição. Os estudos mais recentes preconizam o tratamento cirúrgico apenas na presença de sintomas manifestos, hipertensão não controlada ou risco presumido de ruptura. Caso contrário, o tratamento instituído deve ser conservador, sem intervenções cirúrgicas. Portanto, faz-se necessário o conhecimento sobre esta patologia, seu diagnóstico e tratamentos, em especial, para clínicos e cirurgiões que atuam nesta área.
Intervenção do enfermeiro frente ao tratamento de úlcera venosa: revisão bibliográfica
Authors: Cesar Aline Rieger Reis
Published: October 2019

Este artigo pretende apresentar a intervenção prestada pelo enfermeiro ao paciente portador de úlcera venosa de membros inferiores com o foco de atenção não só voltado principalmente a abordagens curativas e centradas na técnica. A insuficiência venosa crônica é a causa principal da úlcera venosa, causando uma obstrução parcial ou total de vasos dos Membros Inferiores (MMII). Essas úlceras comumente causam edema, dor local, podendo apresentar exsudato e odor fétido, sendo maléolo medial e do terço distal da perna a localização mais frequente.  Os resultados apontam quanto a necessidade de atualização técnico e científico constante para a melhor intervenção quanto ao tipo do tratamento e orientações para prevenção de feridas exige, sendo condição imprescindível o envolvimento de toda a equipe multiprofissional.
Integrasi Budaya dalam Pendidikan Akuntansi untuk Mencapai Keunggulan Kompetitif Lulusan
Authors: Eltivia Nurafni , Ekasari Kurnia , Wahyuni Hesti , Soedarso Elvira Handayani
Published: October 2019

ABSTRAKPenelitian ini bertujuan untuk mengeksplorasi betapa budaya dapat menjadi alat diferensiasi bagi akuntan untuk mencapai keunggulan kompetitif. Hermeneutik digunakan sebagai alat analisis dalam penelitian untuk mencari nilai luhur yang terdapat dalam filosofi suatu budaya. Filosofi Sedulur Papat Kalimo Pancer (Jawa), Siri na Pacce (Bugis-Makassar), dan Tri Hita Karana (Bali) akan dieksplorasi dalam penelitian ini. Hasil penelitian ini menunjukkan bahwa budaya lokal tersebut memiliki nilai luhur yang bila diinternalisasi dalam pendidikan Akuntansi, akan dapat membawa Akuntan Indonesia memiliki keunggulan kompetitif dalam persaingan global. Nilai-nilai diferensiasi tersebut adalah tersebut adalah Ketuhanan, sinergi dan harmonisasi, dan etos kerja.ABSTRACTThis study attempts to explore how culture can be differentiation instrumental for an accountant to achieve competitive advantage. Hermeneutics will be used to solicit the virtue values of the culture philosophy. Sedulur papat kalimo pancer (Javaneese), Siri na Pacce (Bugis-Makassar), and Tri Hita Karana (Balineese) will be explored in this research. The results of this study indicate that local culture has noble values which, when internalized in Accounting Education will be able to bring competitive advantage in the global competition. Those differentiation value are divinity, synergy and harmonization, and work ethic.
Tazkiyah: Metodologi Rekonstruksi Akuntansi Pertanian
Authors: Mulawarman Aji Dedi
Published: October 2019

ABSTRAKArtikel ini bertujuan mengonstruksi metodologi untuk memurnikan akuntansi pertanian kembali pada fitrah kesuciannya sehingga dapat menempati strata tertinggi bersama tulisan dan angka, sebagaimana kemunculan pertama kalinya di masa revolusi pertanian 12.000 tahun lalu. Konstruksi metodologi pemurnian akuntansi dilakukan melalui telaah kesejarahan pemikiran Ibnu Khaldun dan konsep pemurnian dalam Islam. Hasil konstruksi menunjukkan bahwa metodologi tazkiyah bersubstansi nilai dinamis berkeadilan bagi individu dan masyarakat serta lingkungan alam, dengan cara melalui penyucian terus-menerus. Temuan konstruksi juga menunjukkan bahwa kesucian akuntansi telah hilang dan tersisih sejak Revolusi Industri yang berorientasi materi dan pertumbuhan (ekonomi). Praksis akuntansi tanpa kesucian mewujud dalam standar IFRS dan PSAK di Indonesia hingga abad 21 berkolaborasi dengan Revolusi Industri 4.0.ABSTRACTThis article aims to construct a methodology to refine agricultural accounting back to its nature of holiness so that it can occupy the highest strata along with writing and numbers, as it first appeared during the agricultural revolution 12,000 years ago. The construction of the accounting refinement methodology is carried out through the historical study of Ibn Khaldun's thought and the concept of purification in Islam. The results of the construction show that the tazkiyah methodology has a dynamic value of justice for individuals and communities and the natural environment, by means of continuous purification. The construction findings also show that the sanctity of accounting has been lost and marginalized since the material revolution and growth (economic) orientation. Accounting practices without holiness embodied in IFRS and PSAK standards in Indonesia until the 21st century in collaboration with the Industrial Revolution 4.0.
Pengembangan Game Edukatif Berbasis Android Sebagai Media Pembelajaran Akuntansi untuk Meningkatkan Analysis Ability Mahasiswa
Authors: Yana Enceng , Komara Acep , Anisah Aan
Published: October 2019

ABSTRAKPenelitian ini bertujuan untuk mengembangkan media pembelajaran akuntansi berbantuan game edukatif berbasis android, sehingga dihasilkan media pembelajaran akuntansi berupa game edukatifÂ  yangÂ  valid, praktis dan efektif. Model yang digunakan dalam penelitianÂ  pengembangan ini adalah ADDIE. Teknik Pengumpulan data yang digunakan adalah angket dalam hal ini berupa lembar validasi, angket respons mahasiswa, test dan studi dokumentasi. Adapun teknik analisa data yang digunakan adalah teknik deskriptif persentase. Hasil penelitian ini menunjukan media pembelajaran game eduktif yang dikembangkan valid, praktis dan efektif sesuai dengan tujuan penelitian serta mampu meningkatkan kemampuan analysis ability mahasiswa khususnya pada pokok materi rekonsiliasi bank.ABSTRACTThis research aims to develop accounting learning media assisted with android-based educational games, therefore, valid, practical and effective accounting learning media produced. The model used in this research development is ADDIE, while the techniques of data collection used are questionnaires in the form validation sheets, students' response sheets, tests, and documentation study. The technique of data analysis used is a descriptive percentage by changing the quantitative data to become percentage form. The results of this study indicate that the development of educational learning media is valid, practical, and effective, it is in accordance of the study and can improve students' skill in analyzing the ability especially on bank reconciliation subject.
Pengaruh Model Pembelajaran Kooperatif Tipe GR (Group Resume) Terhadap Hasil Belajar Siswa Kelas X Pada Pokok Pembahasan Nilai Mutlak
Authors: Mulyadin Edi
Published: October 2019

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif tipe GR (Group Resume) terhadap hasil belajar siswa kelas X pada pokok pembahasan nilai mutlak di MAN 2 Bima tahun pelajaran 2017/2018. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian eksperimen semu (Quasi Eksperimental) dengan rancangan penelitian Control Group Pre-tes Post-tes. Populasi dari penelitian ini adalah seluruh siswa kelas X MAN 2 Bima yang berjumlah 223 siswa. Instrumen penelitian yang digunakan dalam penelitian ini adalah tes hasil belajar siswa. Teknik analisis data yang digunakan adalah analisis statistik deskriptif dan analisis statistik inferensial. Berdasarkan data yang diperoleh dapat diketahui bahwa pembelajaran kooperatif tipe GR (Group Resume)  dapat meningkatkan hasil belajar siswa pada pokok bahasan nilai mutlak. Ada pengaruh model pembelajaran kooperatif tipe GR (Group Resume) terhadap hasil belajar siswa kelas X MAN 2 Bima tahun pelajaran 2017/2018.

 

This study aims to determine the effect of the GR (Group Resume) cooperative learning model on class X student learning outcomes on the subject of absolute value discussion at MAN 2 Bima in the academic year 2017/2018. This type of research used in this study is quasi-experimental research (Quasi-Experimental) with a Control Group Pre-test Post-test research design. The population of this study was all students of class X MAN 2 Bima, amounting to 223 students. The research instrument used in this study was a student learning achievement test. The data analysis technique used is descriptive statistical analysis and inferential statistical analysis. Based on the data obtained, it can be seen that cooperative learning type GR (Group Resume) can improve student learning outcomes on the subject of absolute value. There is an influence of the GR (Group Resume) cooperative learning model on the learning outcomes of Class X MAN 2 Bima students in the 2017/2018 school year.
Pengaruh Model Pembelajaran Matematika Realistik Berbasis Media Terhadap Kesulitan Belajar Siswa
Authors: Halawati Firda
Published: October 2019

Tujuan dari penelitian ini adalah untuk mengetahui apakah terdapat pengaruh model pembelajaran matematika realistik terhadap kesulitan belajar siswa. Penelitian ini menggunakan metode Pre-experimental dengan one group pretest posttest design. Populasi didalam penelitian ini adalah seluruh siswa SMP 1 Kuningan Jawa Barat yang berjumlah 960 siswa. Teknik pengambilan sampel menggunakan teknik sampling purposive. Penguasaan materi diukur dengan menggunakan tes pilihan ganda. Tes diberikan pada tes awal (pre-test) dan tes akhir (post-test). Hasil penelitian ini menunjukkan bahwa rata-rata tes awal dan tes akhir terdapat kenaikkan 30% dan terdapat pengaruh model pembelajaran matematika realistik berbasis media terhadap kesulitan belajar siswa.

 

The purpose of this study is to determine whether there is an influence of realistic mathematics learning models on student learning difficulties. This study uses a pre-experimental method with one group pre-test and post-test design. The population in this study were all students of SMP 1 Kuningan West Java, amounting to 960 students. The sampling technique uses a purposive sampling technique. Material mastery is measured using a multiple-choice test. Tests are given at the initial test (pre-test) and final test (post-test). The results of this study indicate that the average of the initial test and the final test there is an increase of 30%, and there is an influence of media-based realistic mathematics learning models on student learning difficulties.

 
Analisis Kebutuhan Pengembangan Lembar Kerja Siswa Berbasis Penemuan Terbimbing Kelas VIII Sekolah Menengah Pertama
Authors: Putra Aan , Syarifuddin Hendra
Published: October 2019

Pemahaman konsep matematika merupakan salah satu kemampuan dasar yang harus dikuasai oleh siswa sebagai modal awal untuk menguasai kemampuan matematis yang lebih kompleks. Untuk mengoptimalkan pemahaman konsep matematis siswa, proses pembelajaran matematika yang memfasilitasi siswa untuk menemukan konsep dan mengkonstruksi sendiri pemahamannya tentang konsep tersebut merupakan salah satu solusi. Penelitian ini bertujuan untuk menganalisis kebutuhan siswa terhadap pengembangan bahan ajar berupa lembar kerja yang dapat memfasilitasi siswa menemukan dan mengkonstruksi konsep matematika. Data dikumpulkan melalui wawancara, lembar observasi, angket dan analisis dokumen. Hasil pengumpulan data menunjukkan bahwa (1) pemahaman konsep siswa tergolong rendah, (2) proses pembelajaran belum memfasilitasi siswa menemukan dan mengkonstruksi konsep, dan (3) bahan ajar yang digunakan hanya berupa ringkasan materi dan sekumpulan soal. Berdasarkan hasil analisis kebutuhan, peneliti merekomendasikan pengembangan bahan ajar berbasis penemuan terbimbing dalam bentuk lembar kerja siswa untuk mempermudah guru dalam membimbing siswa dalam melakukan kegiatan penemuan.

 

The mathematical concepts understanding was one of the basic abilities that must be mastered by students as initial capital to master more complex mathematical abilities or skills. To optimize students' mathematical concepts understanding, the process of learning mathematics that facilitates students to find concepts and construct their own understanding of these concepts was a solution. This study aims to analyze student needs for developing teaching materials in students’ worksheets form that can facilitate students to discover and construct mathematical concepts. The data collected through interviews, observation sheets, questionnaires and document analysis. The results of data collection show that (1) students' mathematical concepts understanding was low, (2) the learning process has not facilitated students to find and construct their concepts, and (3) teaching materials used were just as summary of material and some sets of questions. Based on the results of the needs analysis, the researcher recommends the development of teaching materials based on guided discovery like students’ worksheets to facilitate the teacher in guiding students in conducting the discovery activities.
Active and Unidirectional Acceleration of Biaryl Rotation by a Molecular Motor
Authors: Uhl Edgar , Mayer Peter , Dube Henry
Published: October 2019

Light driven molecular motors possess immense potential as central driving units for future nanotechnology. Integration into larger molecular setups and transduction of their mechanical motions represents the current frontier of research. Here we report on an integrated molecular machine setup allowing to transmit potential energy from a motor unit unto a remote receiving entity. The setup consists of a motor unit connected covalently to a distant and sterically strongly encumbered biaryl receiver. By action of the motor unit single bond rotation of the receiver is strongly accelerated and forced to proceed unidirectionally. The transmitted potential energy is directly measured as the extent to which energy degeneration is lifted in the thermal atropisomerization of this biaryl. Energy degeneracy is reduced by as much as 2.3 kcal/mol and rate accelerations up to 2x105 fold in terms of rate constants are achieved.
Can Doping of Transition Metal Oxide Cathode Materials Increase Achievable Voltages with Multivalent Metals?
Authors: Koch Daniel , Manzhos Sergei
Published: October 2019

We investigate from first principles the use of substitutional p-doping as a means to enhance the insertion energies of multivalent metals in transition metal oxides, and therefore the resulting voltages in an electrochemical cell, due to bandstructure modulation. Multivalent and earth-abundant metals such as magnesium or aluminium are attractive candidates to replace lithium in future high-performance secondary batteries with intercalation-type electrodes. Unfortunately, the achievable voltages obtained with this kind of elements still remain uncompetitively low. We study and compare the changes in insertion energetics (voltages) of single- and multivalent metals in semiconducting and insulating transition metal oxides upon substitutional p-doping with different metals, introducing different numbers of hole states. We use a single vanadium pentoxide monolayer as model system to study the effect of p-doping on achievable voltages and deduce general trends for transition metal oxides. Our investigations reveal the formation of n-hole polarons (with n>1) in form of oxygen dimers in p-doped vanadia caused by localized p holes on oxide ions in agreement with previous findings. We find that the oxygen dimer formation has an adverse effect on adsorption energetics compared to the single-hole case without dimerization. We find an analogous oxygen dimerization in other TMOs with oxygen-dominated valence bands like molybdenum trioxide and titanium dioxide, while strained systems like trigonal nickel- or titanium dioxide, or Mott-type systems like monoclinic vanadium dioxide with qualitatively different valence band composition do not exhibit oxygen dimerization with multi-hole doping. Our results demonstrate the advantages and limitations of TMO electrode p-doping and show a path to possible strategies to overcome detrimental effects.
Improved Deep-Red Phosphorescence in Cyclometalated Iridium Complexes via Ancillary Ligand Modification
Authors: Kabir Evanta , Sittel Steven , Nguyen Boi-Lien , Teets Thomas
Published: October 2019

In this work, we describe bis-cyclometalated iridium complexes with efficient deep-red luminescence. Two different cyclometalating (C^N) ligands‒1-phenylisoquinoline (piq) and 2-(2- pyridyl)benzothiophene (btp)‒are used with six strong π-donating ancillary ligands (L^X) to furnish a suite of 10 new complexes with the general formula Ir(C^N)2(L^X). Improvements in deep-red photoluminescence quantum yields were accomplished by the incorporation of sterically encumbering substituents onto the ancillary ligand, which can enhance the radiative rate constant (kr) and/or reduce the non-radiative rate constant (knr). Five of the complexes were characterized by X-ray crystallography, and all of them were investigated by in-depth spectroscopic and electrochemical measurements.
Total Synthesis and Structural Verification of Isatindigotindoline C
Authors: Siitonen Juha , Yousufuddin Muhammed , Kurti Laszlo
Published: October 2019

Total synthesis of the polycyclic alkaloid isatindigotindoline C is achieved in two steps using an exo-selective [3+2]-dipolar cycloaddition. The synthesis verifies the originally computationally assigned relative stereochemistry.
The ‘Inverted Bond’ revisited. Analysis of ‘in silico’ models and of [1.1.1]Propellane using Orbital Forces
Authors: Laplaza Rubén , Contreras-García Julia , Fuster Franck , Volatron François , Chaquin Patrick
Published: October 2019

This article dwells on the nature of “inverted bonds”, which make reference to the σ interaction between two s-p hybrids by their smaller lobes, and their presence in [1.1.1]propellane 1. Firstly we study H 3 C-C models of C-C bonds with frozen HCC angles reproducing the constraints of various degrees of “inversion”. Secondly, the molecular orbital (MO) properties of [1.1.1]propellane 1 and [1.1.1]bicyclopentane 2 are analyzed with the help of orbital forces as a criterion of bonding/antibonding character and as a basis to evaluate bond energies. Triplet and cationic state of 1 species are also considered to confirm the bonding/antibonding character of MOs in the parent molecule. These approaches show an essentially non-bonding character of the σ central CC interaction in propellane. Within MO theory, this bonding is thus only due to π-type MOs (also called ‘banana’ MOs or ‘bridge’ MOs) and its total energy is evaluated to ca. 50 kcal/mol. In bicyclopentane 2, despite a strong σ-type repulsion, a weak bonding (15-20 kcal/mol) exists between both central CC, also due to π-type interactions, though no bond is present in the Lewis structure. Overall, the so-called ‘inverted’ bond, as resulting from a σ overlap of the two s-p hybrids by their smaller lobes, appears highly questionable.
Chemoenzymatic ortho-quinone methide formation
Authors: Doyon Tyler , Perkins Jonathan , Dockrey Summer A. Baker , Romero Evan O. , Skinner Kevin , Zimmerman Paul M. , Narayan Alison
Published: October 2019

Generation of reactive intermediates and interception of these fleeting species in a cascade is a common strategy employed by Nature. However, formation of these species under mild conditions using traditional synthetic techniques can present a challenge. Here, we demonstrate the utility of biocatalysis in generating ortho-quinone methide intermediates under aqueous conditions and at reduced temperatures. Specifically, we applied an α-ketoglutarate-dependent non-heme iron enzyme, CitB, in the selective modification of benzylic C–H bonds of ortho-cresol substrates to afford a benzylic alcohol product which, under the reaction conditions, is in equilibrium with the corresponding ortho-quinone methide. Interception of the ortho-quinone methide by a nucleophile or a dienophile allows for one-pot conversion of benzylic C–H bonds into C–C, C–N, C–O, and C–S bonds in a chemoenzymatic cascade.
Thinking Globally, Acting Locally: On the Issue of Training Set Imbalance and the Case for Local Machine Learning Models in Chemistry
Authors: Haghighatlari Mojtaba , Shih Ching-Yen , Hachmann Johannes
Published: October 2019

The appropriate sampling of training data out of a potentially imbalanced data set is of critical importance for the development of robust and accurate machine learning models. A challenge that underpins this task is the partitioning of the data into groups of similar instances, and the analysis of the group populations. In molecular data sets, different groups of molecules may be hard to identify. However, if the distribution of a given data set is ignored then some of these groups may remain under-represented and the sampling biased, even if the size of data is large. In this study, we use the example of the Harvard Clean Energy Project (CEP) data set to assess the challenges posed by imbalanced data and the impact that accounting for different groups during the selection of training data has on the quality of the resulting machine learning models. We employ a partitioning criterion based on the underlying rules for the CEP molecular library generation to identify groups of structurally similar compounds. First, we evaluate the performance of regression models that are trained globally (i.e., by randomly sampling the entire data set for training data). This traditional approach serves as the benchmark reference. We compare its results with those of models that are trained locally, i.e., within each of the identified molecular domains. We demonstrate that local models outperform the best reported global models by considerable margins and are more efficient in their training data needs. We propose a strategy to redesign training sets for the development of improved global models. While the resulting uniform training sets can successfully yield robust global models, we identify the distribution mismatch between feature representations of different molecular domains as a critical limitation for any further improvement. We take advantage of the discovered distribution shift and propose an ensemble of classification and regression models to achieve a generalized and reliable model that outperforms the state-of-the-art model, trained on the CEP data set. Moreover, this study provides a benchmark for the development of future methodologies concerned with imbalanced chemical data.
The distribution of gastric malignancies in AL-Diwaniyah province-Iraq, a retrospective study
Authors: Osamah Tahir Muslim  , Mohammed Abdulmohsin Abdulmaged  , Ali Abbas Radhi
Published: October 2019

Gastric cancer is one of the most common malignancies affecting gastrointestinal tract. It a multifactorial illness, both genetic and environmental factors involving in etiology. A wide variation in the incidence of gastric cancer in different geographical regions. Endoscopy is the most sensitive and specific method for the diagnosis. The aims of this study is to describe the distribution rate of gastric cancer in AL-Diwaniyah province in Iraq in correlation with the patients age, sex and the histopathological types of gastric cancer. From about (4078) patients who underwent gastroscopy for different indications at  AL-Diwaniyah gastroenterology and hepatology center in Iraq during the period between November 2015 and April 2019, (76) patients were founded to have gastric cancer by documented histopathological study of tissue biopsy. Gastric cancer distribution was about (1.8%). Males are affected more than females in a ratio of (1.37:1). Out of (76) total number of patients with gastric cancer ;(69) patients (90.79%) having gastric adenocarcinoma ( most common type) with male to female ratio of (1.46:1). (5) Patients (6.58%) having gastrointestinal stromal tumors (GIST) and (2) patients ( 2.63%) having lymphoma. In patients with adenocarcinoma,(12) patients (17.39%) were less than (40 years) of age, (31) patients (44.93%) were between (40-60 years) and (26) patients (37.68%) were older than (60 years). The intestinal-type adenocarcinoma was the most common histopathological type (63.77%), followed by diffuse type (30.43%), mixed  (4.35%) and mucinous(1.45%). Gastric cancer incidence is increasing with advance age; it still a public health and challenging problem. Mass screening or surveillance programs is the best method for the detection and diagnosis of gastric cancer at an early stage.
Smartphone app for asthma self-management – a literature review of contents and functions
Authors: Ghozali MT  , Satibi  , Zullies Ikawati  , Lutfan Lazuardi
Published: October 2019

A self-management is an important thing in achieving optimum health outcomes. One of the many effective ways that help improve the outcomes of self-management in asthma is through the use of smartphone applications or popularly known as apps. The apps have been designed to help patients in controlling asthma complaints. This study aimed to examine contents and functions featured in the reviewed studies as well as to suggest what functions and contents should be featured in an asthma self-management smartphone app. This study used a systematic approach to examine and review the contents and functions of asthma management apps from selected studies. Inclusion criteria of the study included studies related to the use of asthma control or asthma self-management apps, providing information about contents and features of asthma apps, apps in the reviewed studies designed for laypersons or patients, studies published in peer-reviewed scientific journals in English, and original articles. All the studies had been taken from 2013 to 2018 from three databases, namely Pubmed, Science Direct, and ProQuest. Exclusion criteria included full text unable to be accessed and unable to obtain complete full statistical data. Results of this study showed that the most popular functions and contents featured in the asthma apps involved asthma education, medication use monitor, medication reminder, asthma control test, peak flow meter, asthma symptom monitor, and asthma action plan. Less popular functions and contents included a chat with others, Air Quality Health Index, and Quality of Life Questionnaires.
A non-randomized interventional study to promote the knowledge, attitude and practices of community pharmacists towards pharmacovigilance
Authors: Kumaraguru Anbalagan  , Shanmugasundaram P
Published: October 2019

Pharmacovigilance promotes the safe and effective use of medicines and thereby optimizes the treatment quality. However, lack of awareness among community pharmacists towards pharmacovigilance decreases the proportion of adverse drug reactions reported and impairs the signal detection process. Hence this study was designed to assess and promote the awareness and attitude of community pharmacists towards pharmacovigilance. This educational interventional study was carried out with 102 community pharmacists across Chennai. A pre-validated three domain-containing questionnaire, 20 items was used to assess the knowledge, attitude and practice before and after the educational intervention.  Knowledge, attitude and practices of community pharmacists towards pharmacovigilance was significantly increased after the educational intervention (P<0.05, 95%CI). Median difference in an overall score of knowledge and practice was observed to be 4 and 4.5, respectively.  Though the frequency of ADR reporting was not found to be greatly increased in our study, mass educational programs with adequate sampling intervals are needed to strengthen the signal generation process.
Body fat distribution, cardiorespiratory fitness, and lipid profile in first degree relatives with type 2 diabetes mellitus
Authors: Shaik Azmatulla  , Rinku Garg  , Anil Kumar Sharma  , Navpret Mann
Published: October 2019

Evaluation of people at increased risk like first degree relatives of type 2 diabetes mellitus (FDRDM) may be useful to reduce the risk of disease progression, development, early intervention, and to take precautionary measures.  By considering the multifactorial pathophysiological changes of D.M., we have examined the body fat distribution, cardiorespiratory fitness, and lipid profile of FDRDM. Similar age, height, waist-hip ratio (WHR) in both groups, significantly higher body mass index (BMI) in FDRDM, was observed in our study. Percentage body fat and blood glucose levels in fasting were elevated considerably, and 12 min walk distance was low in FDRDM. Visceral fat was slightly high, but it was not statistically significant. In FDRDM, High-density lipoproteins (HDL) were less but not statistically significant. Significantly higher levels of  Total cholesterol (T.C.), triglycerides (TGL), low-density lipoproteins (LDL), and very-low-density lipoproteins (VLDL) were seen high in FDRDM when compared to controls. Higher body fat percentage reduced cardiorespiratory function and abnormal lipid profile in FDRDM may lead to the development of severe cardiovascular events and necessitates lifestyle modification at early phases of disease development.
Electrooptical complex for terrain on-time survey
Authors: Stukalov S. B. , Stukalov D. S. , Kondrikov V. I. , Gavryushin R. S.
Published: October 2019

The article deals with a number of approaches to the use of electrooptical systems and unmanned aerial vehicles (UAV) to solve the tasks of live terrain surface screening, air incident spots and objects survey. The paper provides the grounds for the UAV airframe chosen structure and the design of the electrooptical complex. The light weight, high -wing monoplane airframe structure is suggested. Using the CNC production center, a UAV with high aerodynamic performance was developed. The UAV was fitted with the optoelectronic system. Structural design for the airborne and ground equipment of the survey complex was developed. The structural design comprises the forward-looking and side airborne surveillance cameras and also downward-looking cameras of visible and infrared bands to provide the day and night vision. The downward-looking cameras of visible and infrared bands, integrated into the UAV fuselage belly are used for the surface monitoring and survey. The flight test on the use of electrooptic system comprised the flight on the route and automatic return using the satellite system navigation. The test showed that navigation data correction was required. The positioning accumulative error elimination is suggested to be done via automated image registration with the contour extraction and landmark reference. The image processing results using Canny algorithm were presented. The recommendations on the algorithm practical application and speed of response are given. To solve the problem of terrain on-time surveillance and monitoring the flight routes were subjected to research. Based on the experiments performed, the recommendations were given on the electrooptic complex application and flight route plotting for the tasks of on-time search and rescue.
Optimization of an aircraft flight trajectory in the GLONASS dynamic accuracy field
Authors: Skrypnik O. N. , Nechaev E. E. , Arefyeva N. G. , Arefyev R. O.
Published: October 2019

The authors consider the problem of optimization of aircraft flight trajectories in air traffic management (ATM) on the basis of flexible routing technologies which involve the use of satellite navigation systems (SNS). It is shown that in optimizing a trajectory it is necessary to take into account the accuracy of track holding during the flight which depends on the accuracy of the navigation system and external flight path disturbances, e.g. wind. For solving the task of optimization the authors propose to use the theory of graphs. The technique of constructing a dynamic SNS accuracy field and representing it as a graph was developed. It is proposed that the SNS field be characterized by geometric dilution of precision changing both in space and in time. Based on the theory of graphs (A-star algorithm) the technique of constructing a trajectory of optimal length with changing the SNS accuracy and external flight path disturbances is proposed. The criterion of optimization based on minimizing the true track is offered. The cost function taking into account the track holding accuracy in navigating by SNS and effects of external flight disturbances is justified. The article presents the results of A-star algorithm application for constructing an optimal flight trajectory under conditions of SNS accuracy field variation and presence of prohibited zones in the provided airspace.