bluuebunny/crossref_metadata_2025 huggingface dataset:
A INSERÇÃO ACELERADA DAS TDIC NA EDUCAÇÃO INFANTIL E ENSINO FUNDAMENTAL I DIANTE A PANDEMIA DA COVID-19
Authors: Felippe Oliveira Lucilene Simone
Published: May 2021

Tratando-se de paradigmas educacionais, os que incluem as Tecnologias Digitais de Informação e Comunicação – TDIC são de grande relevância, especialmente diante do cenário atual, pois observa-se a importância e necessidade da inserção dessas tecnologias ao dia a dia das escolas no processo de ensino e aprendizagem. Porém, uma questão relacionada à saúde mundial, o novo coronavírus, impôs o uso dessas ferramentas de maneira abrupta e com pouco planejamento. Assim, estudantes de toda a educação básica, bem como professores, coordenadores, gestores e toda a equipe pedagógica, precisaram, repentinamente, familiarizar-se com o uso das plataformas digitais de aprendizagem e suas ferramentas. Levando tais afirmações em consideração, surgiram os seguintes questionamentos: Frente a conjuntura educacional imposta pela pandemia, será que o modelo de educação (online) conseguiu englobar a maioria das crianças da Educação Infantil, principalmente as crianças da pré-escola (4 e 5 anos) e do Ensino Fundamental I (1º ao 5º ano), em especial as advindas de instituições públicas e menos favorecidas? Será que houve qualidade no processo de ensino e aprendizagem com esse novo modelo de educação? Portanto, a pesquisa consiste em exploração bibliográfica de abordagem qualitativa. Os dados foram coletados a partir de leituras realizadas em obras publicadas, artigos científicos disponíveis na internet, congressos e palestras virtuais.
ALINHAMENTO ESTRATÉGICO NA GESTÃO PÚBLICA DE UM MUNICÍPIO DO OESTE PAULISTA
Authors: Meira Josiane Santana , Silva Kamila da , Kato-Cruz Erika Mayumi , Endo Gustavo Yuho
Published: May 2021

Um dos desafios atuais enfrentados pelos gestores consiste em implementar os objetivos definidos no planejamento estratégico, isso porque este processo envolve o alinhamento das metas e ações em diferentes níveis e setores da organização. Deste modo, essa pesquisa surgiu da necessidade de se demonstrar para os gestores públicos que o planejamento e o alinhamento estratégico são ferramentas de gestão importantes para tomada de decisões e melhor aproveitamento do tempo e dos recursos públicos. Sendo assim, esse estudo objetivou compreender como ocorre o planejamento e o alinhamento estratégico na gestão pública de um município do Oeste Paulista, com foco na Secretaria de Assistência Social. Para tanto, a pesquisa foi realizada por meio de uma abordagem qualitativa, descritiva, do tipo estudo de caso. A partir deste trabalho, encontrou-se evidências de que o planejamento estratégico é um instrumento que deve ser utilizado, pois viabiliza o alinhamento estratégico dos órgãos, entidades e servidores às metas do governo e, assim, facilita a política de gestão pública por bons resultados aos governados.
UJI AKTIVITAS ANTIBAKTERI SABUN CAIR EKSTRAK ETANOL 70% DAUN SIRSAK (Annona muricata L) TERHADAP BAKTERI Staphylococcus aureus
Authors: Lestari Tia Fuji
Published: May 2021

AbstrakKeadaan dimana masuknya mikroorganisme kedalam tubuh, berkembang biak dan menimbulkan penyakit disebut dengan infeksi. Infeksi terjadi jika salah satu organisme hidup serta merugikan organisme lain yaitu inangnya, salah satunya disebabkan oleh bakteri Staphylococcus aureus. Tanaman yang dapat dimanfaatkan sebagai obat tradisional antara lain Daun Sirsak (Annona muricata L) atau lebih dikenal dengan nama sirsak. Kegunaannya sebagai obat tradisional yaitu sebagai antibakteri, antiparasit, antivirus,obat cacing, dan dekongestan  Daun  sirsak sendiri mengandung senyawa saponin, flavonoid, tanin, dan alkaloid yang mempunyai fungsi sebagai antiseptik-desinfektan, sehingga tanaman ini dapat digunakan sebagai antibakteri. Tujuan penelitian ini untuk mengetahui apakah sabun cair ekstrak etanol 70% daun sirsak (Annona muricata L) memiliki sifat sebagai antibakteri.Pembuatan ekstrak dilakukan dengan metode maserasi dengan etanol 70%. Ekstrak di formulasikan menjadi sediaan sabun cair dengan konsentrasi 6,25%, 12,5%, dan 25%. Dan dievaluasi organoleptik, pH, Homogenitas kemudian dilanjutkan dengan uji aktivitas antibakteri. Hasil uji aktivitas sabun cair ekstrak daun sirsak menunjukan diameter hambat 6,25%, 12,5% dan 25% masing-masing 27,56mm, 28,17mm dan 30,87mm. Berdasarkan hasil uji yang diperoleh maka dapat disimpulkan bahwa sabun cair ekstrak daun sirsak (Annona muricata L) dapat dibuat menjadi sediaan sabun cair dan memiliki daya hambat terhadap bakteri Staphylococcus aureus.Kata kunci:Daun Sirsak (Annona muricata L), Antibakteri, Staphylococcus aureus, Sabun Cair
ARTIKEL REVIEW : FORMULASI DAN EVALUASI SEDIAAN EFERVESEN HERBAL SEBAGAI ANTIOKSIDAN
Authors: Aloenida Yolanda Putri , Fatmawati Fenti
Published: May 2021

Besarnya pengaruh radikal bebas terhadap kesehatan manusia membuat masyarakat saat ini banyak mengkonsumsi buah dan sayur serta bahan alam lain tinggi antioksidan. Untuk mendapat dan mengefisiensikan manfaat antioksidan dari herbal dibutuhkan adanya suatu teknologi yang tepat salah satunya dibuat dalam sediaan efervesen. Sediaan efervesen memiliki beberapa keunggulan yaitu memiliki rasa yang enak, mudah dikonsumsi dan diabsorbsi cepat oleh tubuh. Review ini akan memberikan informasi mengenai formulasi dan evaluasi sediaan efervesen dari berbagai herbal sebagai antioksidan. Pencarian jurnal dilakukan secara online melalui situs pencarian jurnal yang terakreditasi. Sebanyak 17 jurnal dari 121 jurnal pencarian awal memenuhi kriteria inklusi. Kombinasi asam sitrat dan asam tartrat serta natrium bikarbonat dengan metode granulasi basah menjadi formulasi yang paling banyak digunakan. Evaluasi waktu larut, pH, dan kadar air sediaan menjadi indikator kualitas sediaan efervesen. Metode DPPH menjadi pilihan yang paling banyak digunakan untuk menguji aktivitas antioksidan dalams sediaan. Sediaan efervesen dapat menjadi bentuk penghantar antioksidan dari berbagai herbal.
KANDUNGAN KIMIA DARI Navicula sp dan BIOAKTIVITASNYA
Authors: Kurnia Dewi
Published: May 2021

Navicula sp. merupakan mikroalga uniseluler (microalgae) yang termasuk dalam kelas diatom (Bacillariopheceae), ordo Pennales. Memiliki bentuk sel yang lonjong, memanjang seperti perahu atau bentuk ketupat, beberapa seperti balok, cakram atau segitiga Ukuran sel Navicula sp. antara 2-200 μm, hidup menempel berkelompok pada substrat tertentu. Navicula sp. mengandung klorofil, karotenoid, protein dan beberapa jenis asam lemak seperti asam miristat, asam pentadekanoat, asam palmitat, asam stearat, asam palmitoleat dan EPA. Berdasarkan kandungan senyawa kimia tersebut, Naviculla sp diketahui memiliki bioaktivitas seperti antivirus, antibakteri, antifungi dan antioksidan.Kata kunci: Navicula sp., diatom, bioaktivitas
Politički život bosanskohercegovačke protukomunističke emigracije
Authors: Filandra Šaćir
Published: May 2021

Adil Zulfikarpašić je najznačajnija ličnost bosanskohercegovačke protukomunističke emigracije. Emigrantski politički život je posvetio demokratizaciji i liberalizaciji rodne zemlje, a u skladu s najuzvišenijim principima humanizma i slobode. Na tim principima je aktivno sudjelovao u svim institucionalnim oblicima okupljanja jugoslavenske emigracije na Zapadu. Liberalizam i antifašizam su osnovne idejne vodilje njegovog političkog angažmana.
Doprinos Adila Zulfikarpašića oblikovanju mirovnog sporazuma za Bosnu i Hercegovinu s deset multietničkih provincija 1992. i 1993. u Ženevi
Authors: Pejanović Mirko
Published: May 2021

U diskusiji na temu doprinosa Adila Zulfikarpašića oblikovanju mirovnog sporazuma za Bosnu i Hercegovinu s deset multietničkih provincija 1992. i 1993. godine na Ženevskoj mirovnoj konferenciji rasvjetljavam, na temelju ličnog sjećanja, sve aktivnosti koje je on provodio u saradnji sa državnom delegacijom ratnog Predsjedništva Republike Bosne i Hercegovine u pripremi takvog mirovnog sporazuma. Adil Zulfikarpašić je bio veoma zainteresovan za odvijanje pregovora na Ženevskoj mirovnoj konferenciji. Samoinicijativno je pozvao državnu delegaciju da dođe u Zürich i da u Bošnjačkom institutu koristi izvore i građu za svoj rad. Jednog dana smo akademik Filipović i ja doputovali kod njega u Švicarsku. Potom su došli i drugi članovi delegacije. Na raspolaganju smo imali sve uslove za rad. Diskutovali smo o mogućim osnovama izrade mirovnog plana s deset multietničkih provincija. Glavno polazište za pripremu plana bila je Platforma o radu Predsjedništva Republike Bosne i Hercegovine u ratnim uslovima. Riječ je o tome da je Platforma definisala odredbe o unutrašnjem teritorijalnom ustrojstvu Bosne i Hercegovine. Po tim odredbama, unutrašnje državno ustrojstvo zasniva se na regionalnoj i lokalnoj samoupravi. Adil Zulfikarpašić je dijelio mišljenje o valjanosti odredbi Platforme. U njegovom Bošnjačkom institutu mogli smo koristiti sve historijske, ekonomske, kulturološke i druge izvore da sačinimo mirovni plan s deset multietničkih provincija. Adil Zulfikarpašić je, zahvaljujući svojim kontaktima s rukovodstvom Liberalne internacionale, dobio podršku za prijedloge državne delegacije Bosne i Hercegovine. To je umnogome utjecalo na Davida Owena da prihvati prijedloge državne delegacije za mirovni plan s deset provincija, koje su imale multietničku strukturu prema Popisu stanovništva iz 1991. godine.
Big Data: Behind The Scenes
Authors: Vaghmare Kaustubh
Published: May 2021

The phrase "big data" has become a highly common phrase in recent times. However, the phrase "big data", while it may have been coined to indeed vaguely refer to large volumes of data, has now evolved to mean something much more specific. The phrase "big data" actually refers to a family of technologies, platforms, software and techniques aimed at solving a variety of problems otherwise untenable through conventional or traditional solutions. The present article summarizes a traditional approach to a data management problem and presents limitations of this approach. The three 'Vs' used to characterize and define "big data" are then elucidated upon. Finally, the article summarizes commonly used tools and technologies to solve the "big data" problem.
The Origin of LAMOST J1109+7459
Authors: Khrais Yazan , Almusleh Nour Aldein
Published: May 2021

We report a comprehensive Chemo-dynamical analysis of LAMOST J1109+0754, a relatively bright (V = 12.8), extremely metal-poor ([Fe/H] = -3.17), and prograde (JΦ and VΦ > 0) star, with a strong r-process enhancement ([Eu/Fe] = +0.94 ± 0.12, [Ba/Fe] = -0.52 ± 0.15). 31 chemical abundances (from Lithium to Thorium) were derived. We suggest a possible progenitor with stellar mass of 13.4-29.5Msun. We argue that J1109+0754 is representative of the main r-process component due to the well agreement with the scaled-solar r-process component. We analyze the orbital history of this star in a time-varying Galactic potential, based on a Milky-Way analogue model extracted from Illustris-TNG simulations. Using this model, we carry out a statistical estimation of the phase-space coordinates of J1109+0754 at a young cosmic age. Collectively, the calculated motions, the derived chemistry, and the results from the cosmological simulations suggest that LAMOST J1109+0754 most likely formed in a low-mass dwarf galaxy, and belongs to the Galactic outer-halo population.
Evolving the VO: from interoperable data collections to an integrated system of services for data-intensive science
Authors: Pasian Fabio , Molinaro Marco , Taffon Giuliano
Published: May 2021

The Virtual Observatory (VO) represents a successful international enterprise providing interoperability of data collections, thus allowing the possibility of multi-frequency and multi-messenger research. The Big Data era, that astrophysics has stepped into, is forcing scientists to perform data-intensive research. This new concept requires an evolution of the VO concept to provide additional services, in order to transform the VO: from sets of interoperable data to an integrated system of services capable of supporting data-intensive science.
Bimbingan dan Konseling di Taman Kanak-kanak
Authors:   Bimbingan dan Konseling, Universitas Borneo Tarakan (UBT), Rahmi Siti
Published: May 2021

Layanan bimbingan di sekolah lebih dikhususkan di Taman Kanak-kanak. Kegiatan ini membutuhkan yang lebih sistematis dan terarah sehingga adanya buku ini bisa dijadikan rujukan dalam mendampingi dari setiap problem atau masalah yang di alami dan dihadapi anak di Taman Kanak-kanak. Problem yang sifatnya pribadi maupun sosial. Hal ini diungkapkan bahwa bimbingan pribadi merupakan bimbingan yang diberikan kepada anak TK dalam usaha untuk membantu mengenal diri dan mampu mengatasi kesulitan pribadi dengan mengembangkan pribadi yang beriman dan bertaqwa kepada Tuhan Yang Maha Esa. Sedangkan bimbingan sosial adalah bantuan yang diberikan kepada anak TK, agar dapat mengenal lingkungannya, menyesuaikan diri dengan lingkungannya, dan menjalin hubungan atau interaksi dengan sesama diberbagai kalangan.
Dasar Sintesis Proses dan Prarancangan Pabrik Kimia
Authors:   Teknik Kimia, Universitas Syiah Kuala, Machdar Izarul
Published: May 2021

Buku ini disusun sebagai dasar pengetahuan di dalam membangun suatu tahapan-tahapan proses produksi, menggunakan heuristik yang telah ada, dan menyusunnya menjadi suatu paket proses di dalam memproduksi bahan tertentu. Untuk memahami dasar sintesis proses kimia di dalam buku ini, penulis berasumsi bahwa pembaca telah mempunyai latar belakang pemahaman tentang neraca massa, neraca panas, unit operasi teknik kimia, kinetika reaksi, dan reaktor."Dasar Sintesis Proses dan Prarancangan Pabrik Kimia" buku ini diperuntukkan khususnya kepada mahasiswa teknik kimia yang sedang mendalami bidang perancangan pabrik. Buku ini disusun sebagai pengetahiuan di dalam membangun suatu tahapan-tahapan proses produksi.
Aqidah dan Etika Dalam Biologi
Authors:   Pendidikan Biologi, Universitas Syiah Kuala, Andayani Dewi , Safrida Safrida ,   Pendidikan Biologi, Universitas Syiah Kuala
Published: May 2021

Buku ini membahas mengenai aqidah yang meliputi pengertian aqidah, sumber aqidah islam, fungsi aqidah, wujudullah, tauhidullah, hakikat dan dampak dua kalimah syahadat, al-asmaul husna, ilmu allah, dan syirik. Sedangkan etika membahas tentang pengantar etika, etika dalam menuntut ilmu, bioetika tentang penerapan etika dalam ilmu-ilmu biologi, obat, pemeliharaan kesehatan dan bidang-bidang terkait), etika terhadap sesama manusia (etika bertetangga, etika terhadap anak, etika terhadap orang tua), etika lingkungan tentang kebijaksanaan moral manusia dalam bergaul dengan lingkungannya mencakup etika pelestarian dan etika pemeliharaan lingkungan, juga membahas tentang etika penulisan karya ilmiah dan plagiarisme.
Bahan Bakar dan Tanur
Authors:   Teknik Mesin, Universitas Syiah Kuala, Khairil Khairil
Published: May 2021

Penulisan buku ajar ini disusun atas 10 bab, supaya mahasiswa mudah memahaminya dan mengerti tentang langkah-langkah yang diperlukan untuk teknik peleburan besi. Baik dari prilaku sebagai bahan baku berupa batubara, kokas dan biji besi maupun sebagai proses dalam bentuk reaksi kimia dasar peleburan besi. Harapannya mahasiswa dapat mengerti dan memahami tentang konsep-konsep pembakaran sebagai penyedia energi thermal dan penyedia gas CO untuk keperluan reduksi biji besi dan sekaligus bisa membantu dalam menyelesaikan kasus-kasus sederhana dalam berbagai aplikasi teknik peleburan besi berbasis bahan bakar batubara. Adapun cakupan pembahasannya dalam buku ini sebagai berikut. Pendahuluan tentang dasar peleburan besi akan di bahas pada Bab 1, Bab 2, Bab 3 dan Bab 4 akan dibahas mengenai sifat-sifat dasar bahan baku untuk proses peleburan besi meliputi batubara, biji besi dan pembakaran bahan bakar. Bab 5 dan Bab 6 akan dibahas kokas dan prilaku interaksi abu dari batubara terhadap permuakaan kokas. Bab 7 dan Bab 8 akan dibahan tentang teknik peleburan besi dengan menggunakan tanur tiup, reduksi langsung dan peleburan langsung. Pada Bab 9 akan dibahas tentang kenetika reduksi biji besi. Sedangkan Bab 10 akan dibahas tentang emisi dari hasil pembakaran serta teknik penurunan emisi pada tanur peleburan.
New Correlation of Oil Compressibility at Pressures Below Bubble Point For Iraqi Crude Oil
Authors: Hassan Omar F. , Sadiq Dhefaf J.
Published: May 2021

Oil compressibility represents a significant character in reservoir simulation, design of surface facilities and the analysis of well tests, specifically for systems below the bubble point pressure. Oil compressibility is not directly measured in the laboratory. It is usually gained indirectly from experimental data recorded in PVT reports. The relative volume from the flash test is used to calculate oil compressibility at pressures above the bubble point pressure. At pressures below the bubble point, the reservoir behavior is simulated by the differential liberation test. The solution gas-oil ratio and the oil formation volume factor from the differential liberation test are employed in the estimation of oil compressibility at pressures below the bubble point pressure This paper purposes new correlation for calculating isothermal oil compressibility coefficient at and below bubble point pressure. The formulation of oil compressibility correlation is very difficult as it depends on many variables. This property is a function of many variables such as bubble point pressure, reservoir pressure, reservoir temperature, solution gas-oil ratio, oil formation volume factor, stock-tank oil gravity, specific gravity of gas and gas formation volume factor. Standing’s (1), McCain et al. (2) and Al-Jarri's (3) correlations were submitted for testing their validity to evaluate their performance with Iraqi crude oils and to compare their results with the results of the new correlation. The achievement of the new correlations has been done using two hundreds and nine data points from twenty PVT tests that were collected from Southern Iraqi fields. The evaluation of the previous correlations has achieved with graphical and statistical methods. These checking methods show a poor agreement between the observed and the calculated values.  The checking methods (graphical and statistical) explain that the new correlation that was achieved in this paper is suitable to calculate oil compressibility below bubble point pressure for Iraqi crude oils.
The Activity of 1,3,4 Thiadiazole Derivatives on the Soluble Oils
Authors: Zain Alabdeen Khalid
Published: May 2021

That Thiadiazoles derivative is biologically active as antimicrobial agents in cooling fluids.

Derivatives of 1, 3, 4- thiadiazole have prepared:

2-amino-3-[(2-amino-1, 3, 4-thiadiazol-5-yl) dithio] propanoic acid.

2-(2-Carbethoxyamino-1, 3, 4-thiadiazol-5-yl)-thio acetic acid.

[(5-amino-1,3,4-thiadiazol-2-yl) dithio] acetic acid

The synthesized compounds have been used as antimicrobial against the microorganisms which have been found in the cooling fluid of industrial

purposes by using media culture the results showed that the   compounds 1 and 3 are relatively highly active in killing bacteria from the compound 2.

The pH of the cooling fluid samples had been measured after the addition of salt media as well as the inhibitors (1,2,3) the results of pH measurement revealed that the compounds 1,2 and 3 exhibit high activity to inhibit the growth of bacteria.

The turbidity for such media and inhibitors has also been measured and the results indicated that 1,2 and 3 have given low turbidity to inhibit the bacteria or the microorganisms that grow in the cooling fluid.
The effect of mass transfer resistance on the kinetics of catalytic hydrodesulfurization of thiophene over Pt/Al2O3
Authors: Ammar Dr. Saad H.
Published: May 2021

In kinetic study of reactions carried out in the presence of heterogeneous catalyst, it is very important to study the effects of mass transfer rate firstly which can be effective in adding to chemical kinetic. The present work investigates the catalytic hydrodesulfurization (HDS) of thiophene over Pt/ Al2O3, to determine the effect of interface mass transfer resistance. The experimental work was performed in a HDS continuous flow fixed bed catalytic reactor unit consisted of a carbon steel tube (2.54 cm diameter, and 60 cm length), located in the laboratories of chemical engineering department, Baghdad University. The objective of the work was to investigate effect of mass transfer limitations (internal diffusion and external diffusion) in catalytic reaction of thiophene HDS. It was verified that mass transfer resistances has a small effect on the reaction rate.
Improving Nutrient Removal in Constructed Wetland Wastewater Treatment
Authors: Al-Saad Mohammed Hassan , Elaibi Alaa Ibrahim , Mageed Inas Sami
Published: May 2021

The percentage pollutant removal obtained by the previous work were very good in terms of BOD5 which was 95% removal, TSS was 97% removal, but unsatisfactory in terms of NH4-N, NO3-N and P which was 39%, 41% and 44% removal respectively-The effect of recycling portion of the effluent discharged from the 2ND. Cell, of a VSSF constructed wetland back to the 1ST. cell on the nutrient removal efficiency of the wetland was studied in this research.The intermittent feeding of influent and the recycled quantity had good effect on system aeration by dissolving the air trapped in the voids of the substrates before each doss and using it to activate aerobic bacteria.The Nitrification and denitrification were enhanced by the recycling process. Recycling effluent with low BOD & COD when mixed with raw wastewater infeed will increase system aeration which helps the nitrification process and when most of the oxygen has been consumed, by microorganisms during biological and chemical degradation of pollutant, than the denitrification process will start and transfer the NO3-, ultimately, to N2 gas.The hydrology condition of the system was good, the water was running in the constructed wetland in a laminar form and the detention time was highest in July and lowest in January as expected due to the effect of evapotranspiration which reaches its highest in July and lowest in January.The maturity of reed plant and extension of their stems and roots may have a positive influence on:- Aerobic condition required for the nitrification process and BOD5 removal by supplying more air from the outside atmosphere to the system.- Adsorbing of heavy metal and metal ions on the extended roots of reed plant.- Increased nutrient uptake by reed plants which results in lowering nutrient in effluent.
Deliverability of Gas condensate "sandstone reservoir"Khabour Fm. Akkas Field,western Iraq
Authors: AL- Hadidy Dr. Aboosh. H.
Published: May 2021

The Khabour Fm. (ordovicain)  presents a prospective target for exploration and developiment, as it certains "Gas Condensate" light gravity, low sulfur oil, and sweet gas as proven by  Akkas  field, in the western desert  of Iraq .

   Gas- condensate project is in depth,hot,low permeability reservoir in the upper K1,K3,K5 sandstone members ,it's  well known that the  deliverability of gas-condensate wells can be improved by the formation of acondensate bank once a bottomhole pressure drope below the dewpoint.

     Improving deliverability can be improved by use the techniques as,Fracturing andchemical treatment.

    The Khabour formation total thickness is 1913m,represntaed by elastic series mainly shaly intercalated with sandstone beds in the lower part  and by well developed sandstone beds in the upper part, In Akk-1 which is subdivided into eight members according to sand /shale ratio, the need for accurate estimate for reservoir  properties of these member  extends to the whole life cycle of a reservoir; detailed

simulation and planning of future production which  including for discovery , appraisal , planning , development and production from Akkas field.
Effect of Pressure and Temperature Change on Undersaturated Oil Viscosity
Authors: Daway Mohammed M.
Published: May 2021

A study has been done based on data received from one of the southern Iraqi's oil fields, consists of eighty eight experimental points of oil viscosity at known pressure and temperature above the bubble point pressure.

Fourteen formulas assumed to define the effect of pressure and temperature change on undersaturated oil viscosity. Every formula gives a value of viscosity at any temperature and pressure (above bubble point) depending on a known value of

 viscosity at known pressure and temperature. Depending on the least squares method, the constants of these formulas are calculated.

A formula appeared to have the minimum average absolute error (4.8 %) with a value of correlation coefficient equal to (0.8996) is selected to be the best formula adopted in this study. The most proper formula has been compared with two correlations (Khan's correlation and Vasquez and Beggs correlation) and it appeared to be better than the both correlations.
Adsorbtion of Nitrogen Compounds from Hydrocarbon Liquids by Using Fixed Packed Bed Activated Carbon
Authors: Mohammed Mohammed Sabah
Published: May 2021

The Extraction behavior of nitrogen compounds (quionoline, indole, and pyridine) from a liquid hydrocarbon (nonane, C9) was studied by using batch and fixed bed activated carbon experiments. The adsorption isotherm curves and the extraction percentage were determined in batch experiments in the conditions of  initial concentration  20,40,60,80,and 100  ppm of either of quionoline, indole, and pyridine, fuel/(AC) ratio of 20 wt/wt, room temperature  30 ± 1°C , and stirring time of 2h.

In the fixed bed experiments the breakthrough curves were determined as a function of the following variables:

Bed height of activated carbon 3, 5, and10 cm.

Initial concentration of nitrogen compounds 50, 75, and100 ppm.

Flow rate of the feed (15, 25, and35) ml/min.

Particle Diameter of activated carbon 1.5, 1.2, and1 mm.

The adsorption capacity increases with increasing equilibrium concentration of the nitrogen compounds in the liquid phase, which is a very favorable isotherm irreversible adsorption. Also the activated carbon has very high affinity for the nitrogen compounds in the order indole < quinoline < pyridine and the conversion values were (50, 46, and42) % respectively. In fixed bed experiments the time to breakthrough point decreases with:

Decreasing in bed height.

The increase in flow rate.

The increase in initial concentration of nitrogen compounds.

There is no effect of varying the particle diameter of the activated carbon because the experimental values of the activated carbon lies in the region of the large particle size and macrospore volume and there is no gradient in the particle size.
Hydrodynamic Characteristics Effect of Foam Control in a Three-Phase Fluidized Bed Column
Authors: Fadhil Mohammad
Published: May 2021

The present work was devoted to study the effect of operating parameters (e.g., superficial gas and liquid velocities, size of solid particles, volume percentage of particles loaded in column and type of particles) on foams, and to investigate the process of foam suppression.

         The experimental apparatus was operated in continuous mode for the two phases (i.e. air and a solution of aqueous anionic surfactant). Sands which were considered as hydrophilic behavior particles were used as solid phase. A specific surface treatment was performed on hydrophilic sands particles to transfer it into hydrophobic one. These two versions of sands were used in the experimental setup respectively to study their effect on suppression of foams. The average gas holdup for the entire column was measured by means of the local gas holdup which was computed from the pressure difference in each segment of the column. Local solid concentration along the column was measured experimentally by analyzing the samples of mixture drawn from the sampling ports. From the present work it was found that: Flow regimes of multiphase system could be easily determined by utilizing local gas holdup profile measured by pressure drop transducer method. The transition from the homogenous to heterogeneous regime was advanced, from ug=4 to 2cm/s with increasing solid concentration from 10 to 20%v and decreasing average particle diameter from dp=(0.8) to (0.25) mm.

         When a mixture of water/surfactant was employed in the bubble column, foam could be present depending on the input operating parameters. The fluid mechanism of foam suppression with hydrophilic particles was enhanced by a direct attack on the foam by hydrophobic particles (i.e. hydrophobic particles were more effective in retaining liquid–destroying foam than the hydrophilic particles). It was found that hydrophobic particles of 0.25 mm average diameter and 10%v loading in the reactor could reduce foaminess fraction from 0.85 to 0.15 if the liquid velocity was 0.3 cm/s. The foaminess fraction could be reduced to 0.0 if the liquid velocity increased to 0.4 cm/s. The results of this study may have abroad applications in petroleum and petrochemical industries where liquid hydrocarbons are processed.
Application of Aerosol Nanocatalysis Technology in Methane Steam Reforming
Authors: Glikin Prof. Marat Aronovich Glikin , Kudryavtsev Ph.D.Sergiy Alexandrovich Kudryavtsev , Mahmmod Ph.D. Saif Mohammed A. Mahmmod
Published: May 2021

Steam Methane Reforming (SMR) is the main method to obtain synthesis gas inproduction of alcohol, ammonia, acids Fischer-Tropsch synthesis and other organic products.The study has investigated the reaction of SMR and it mechanism, explained the aerosolnanocatalysis (AnC) vibrated bed as alternative technology instead of using heterogeneouscatalyst in bed. The research has proven that NiO is the best catalyst that could be used in thereaction of SMR by AnC after investigating catalysts: Fe2O3, K-905D2, GIAP-8, Co2O3 andNiO.
تغيير عناصر الانتاج في آبار مكمن المشرف/حقل الرميلة الشمالي لزيادة معدلات انتاجها "الآبار المربوطة على محطة عزل الغاز الثالثة/حقل الرميلة الشمالي"
Authors: Ahmed Diaa Naim Ahmed
Published: May 2021

اثبتت النتائج بان عناصر الانتاج في ابار الرميلة الشمالية/ مكمن المشرف بالامكان تغييرها لضمان استمرار الابار بالانتاج وزيادة معدلاتها مع ضمان عدم حصول جريان ثنائي الطور داخل المكمن.

امكانية تغيير فتحة خانق  البئر رش/319 من (2/1) عقدة ، الى  (2) عقدة مع ضمان عدم وصول ضغط قاع البئر الجرياني الى حدود قريبة من ضغط الاشباع والبالغ 2350 با/عقدة2 مما يؤدي الى توقف البئر عن الجريان لحصول ظاهرة الجريان ثنائي الطور (انتاج نفط وغاز) وقد كان ضغط قاع البئر الجرياني حوالي (2495) با/عقدة2.

ان اكمال البئر رش/183 الحالي ، يشير الى توقف البئر عن الجريان بسبب انخفاض ضغط  قاع البئر الجرياني المقاس الى ما دون ضغط الاشباع ، وبالتالي جرت محاولة تغيير اكمال البئر ، باطالة انابيب الانتاج من (1928) متراً الى حوالي (2200) متراً ، الامر الذي سيؤدي الى ارتفاع ضغط قاع البئر الجرياني الى حوالي (2463) با/عقدة2 وهي اكثر من ضغط الاشباع البالغ (2350) با/عقدة2 وبالتالي استمرار البئر بالانتاج عبر انابيب الانتاج فقط  بمعدل حوالي  (1235) ب/ي  ولفترة جيدة باستخدام فتحة للخانق بالقطر الحالي  (2/1) عقدة . كما يمكن زيادة فتحة الخانق الى (4/3) عقدة والتي ستسمح بانتاج البئر بمعدل حوالي (2000) ب/ي ، ولكن لفترة أقصر.
Experimental Investigation of Pipeline In-Service Welding Process
Authors: Amori Dr.Karima E. Amori , Hussain Dr. Mohammad N. Hussain , Hilal Hadeel B. Hilal
Published: May 2021

Welding of pipeline in active operation (called in-service welding) is an advancedtechnique employed to repair pipelines to safe transmission of petroleum or gas. A thermalexperimental study is accomplished on welding process of gas pipeline in this work. Anexperimental setup had been designed, manufactured and instrumented to estimate the methodfor repairing locally pipelines defects (such as cracks and holes wall surface) under the influenceof internal pressure. Also the thermal history of welding process was investigated experimentallyto three cases which are : traditional welding process with no fluid flows inside the test pipe, anin-service welding process considering air as the flowing fluid inside test pipe, and an in-servicewelding process considering the liquefied petroleum gas (LPG) as flowing fluid inside test pipe.Results show that direct deposition of welding metal on a through hole under the influence ofinternal pressure succeeded for flow rate less than (12lpm) and failed for flow equal or higherthan (12lpm) in which a sleeve repair is considered. The calculations are followed by a separatethermal stress analysis based on the thermal history.
A Novel Approach for Adsorption of Lead (II) Ions from Wastewater Using Cane Papyrus
Authors: Al-atabe Mohammed Jaafar Ali Al-atabe
Published: May 2021

Lead (II) ions are a very toxic element known to cause detrimental effects to human healtheven at very low concentrations. An adsorbent prepared using Cane Papyrus was used for theadsorption of lead (II) ion from aqueous solution. Batch experiments were performed onsimulated aqueous solutions under optimized conditions of adsorbent dosage, contact time, pHand initial lead (II) ion concentration at 25Co. The Freundlich isotherm model more suitablydescribed the adsorption process than the Langmuir model with linearized coefficients of 0.986and 0.9733, respectively. Pseudo-second order kinetic equation best described the kinetics of thereaction. Fourier transform infra-red analysis confirmed the presence of amino (–NH), carbonyl(–C=O) and hydroxyl (–OH) functional groups. Furthermore, 0.2M HCl was a better desorbingagent than 0.2 M NaOH and de-ionized water. The experimental data obtained demonstrated thatCane Papyrus can be used as a suitable adsorbent for lead (II) ions removal from wastewater.
Solar Chimney and Power Tower Techniques for Power Production in Nasiriya City
Authors: Hannun Rafid M. Hannun , Khalaf Mohammed H. Khalaf , Husain Amel Hashim Husain
Published: May 2021

The solar chimney and power tower are two of modern promised energy which can develop bylow losses, simplicity and high power.In this paper, the solar chimney and fossil fuel power tower parameters are studied by usingtheoretical equations in computational fluid dynamics CFD that substituted in some computerprograms such as MATLAP and FLUENT codes with additional related expressions. Fivedifferent models are used in this paper (Chimney height is: 12, 15, 20, 25, and 35 meter),(Diameter of collector base is: 5, 8, 10, 15, and 20 meter). The effect of inlet collector height,collector absorbability, solar radiation, ambient temperature, solar collector thickness and solarcollector tilt angle are studied to find the other parameters and properties such as velocitydistribution, power and efficiency of system. The erecting of power turbine is predicted byfindings the velocity distribution between the base and chimney assembly. The numericalanalysis was presented by using GAMBIT and FLUENT 6.3 to predict that high velocity at theexpansion of chimney near the center of base – chimney bond position because of low density ofair as a result to solar radiation flux (and burned gases cover collector in case of using thechimney for combustion of gases in oil refineries).. This position is very suitable for promotingand building the power turbine. The maximum power accumulated from these techniques is morethan (6.7×105 Watt) where the velocity is (17.5 m/s). The study concluded that it is easy work toerect these chimney and power tower techniques closed to drilling and oil facilities in remoteareas. So, all factors were studied to coincide with previous papers in this field.
تقييم طلاءات متراكبات اوكسيد المغنسيوم النانوي للسيطرة على التآكل في الخزانات المعدنية النفطية
Authors: Al-Sarraf Abdul Hamid Rahim Al-Sarraf , Al-Saadi Samer Abdul-Kazem Al-Saadi
Published: May 2021

استهدف البحث التعرف على مستوى الطلاءات النانوية المتراكبة لسبيكة من الفولاذ المقاوم للصدأوالمستعملة في صناعة الخزانات المعدنية لخزن المشتقات النفطية في شركة توزيع المنتجات النفطية بمادةسيليكات الصوديوم ونترات السيليلوز. إذ حُضر عدد من متراكبات سيليكات الصوديوم و نترات السيليلوز1-3 ). تم تشخيص التركيب الكيميائي wt.%) بنسب تدعيم وزنية (MgO) المدعمة بدقائق اوكسيد المغنسيومدرست طبوغرافية وطبيعة سطح مادة الطلاء بواسطة .Spectrometer OE باستخدام (St- للسبيكة ( 37(Optical والمجهر الضوئي (Atomic Force Microscope(AFM)) مجهر القوة الذريةو متانة (Wear) و البلى (Hardness) كما اعد مقياس معرفي تكون من فحص الصلادة .Microscope)علاوة على اختبار التآكل (Chemical Corrosion) واختبار التآكل الكيميائي (Adhesion) الالتصاق(St- لقد تبين إن الفولاذ المقاوم للصدأ هو من نوع ( 37 .(Electrochemical Corrosion) الكهروكيميائيوجد إن الصلادة تزداد ومعدل البلى يقل مع .(ASTM) وهو فولاذ قليل الكاربون حسب المواصفة الامريكية(171 Pa) 232 ) اكبر من سيليكات الصوديوم Pa) زيادة نسب التدعيم. ان متانة الالتصاق لنترات السيليلوز3). وقد اظهرت اختبارات التآكل الكيميائي والكهروكيميائي ان نترات السيليلوز هي wt.%) لنسبة التدعيم.(3 wt.%) اكثر مقاومة للتآكل من سيليكات الصوديوم لنسبة التدعيم
Synthesis and Characterization of Date Palm Fiber-Based Bio-Char and Activated Carbon and its Utilization for Environmental Remediation
Authors: Nasir Mohammad Ibrahim Nasir , Hossain Md. Zakir Hossain , Charprntier P. A. Charpentier
Published: May 2021

Natural agricultural products have the potential to be a substitute for synthetic polymers absorbentsin environmental remediation and spill cleanup and recovery. One of these natural by-productswhich is available in many regions of the world is Date Palm Fibers (DPF). DPF (also known assurface fibers) is a natural sorbent that exhibits good sorption characteristics. In an attempt tovalorize this abundant, low cost byproduct, we have investigated the micro porosity of this rawmaterial by carrying out two procedures. First, hydrothermal pyrolysis using a scalable reactor withonly water as solvent at high temperature (480 °C) under dry nitrogen atmosphere. Biochar yield wasfound varying from 30.5 to 33.6% (32%), with little bio-oil.Then the resultant biochar was physically activated with KOH and the mixture heated to 750oC(0.5oC/min) and kept at 750°C for 2 hours under Argon flow in a tubular furnace to produceactivated carbon. Second, the resulting biochar and activated carbons were then characterized byParticle Analyzer to measure their surface area, pore volume and pore diameter.For biochar, surface area : 1.1374 m²/g, pore volume 0.001883 cm³/g, pore diameter 1355.874 Å andfor activated biochar (activated carbon), surface area : 1220.2755 m²/g, pore volume: 0.062068cm³/g, pore diameter: 19.0116 Å were determined by particle characterization analyzer. ScanningElectron Microscopy (SEM), and X-ray Diffraction (XRD) was also used for other analysis .The oil sorption behavior of the raw DPF, biochar and activated biochar were examined with motoroil. The Oil Sorption Capacity (OSC) of raw DPF, biochar and activated biochar were tested with theoil as oil alone and an oil over water surface and the value calculated gravimetrically. The maximumOSC values of the sorbents were in the order of: DPF<biochar< activated Biochar with OSC valuesof 8.952, 11.712 and 33.402 g*oil/g*sorbent, respectively at a sorption time of 30 min. That indicatethe OSC of the sorbents above are proportional with its surface areas.The sorbent materials can be utilized in oil spill remediation as well as waste water treatment forremoval of hydrocarbons pollutants from water. In addition biochar can be used as a soil amendmentfor enhancing soil fertility
Mathematical Model to Evaluate Behavior of Oil Spill Discharged into Tigris River
Authors: Ammouri Dr. Qays M. Ammouri , Kazem Dr. Yousif J. Kazem , Mohammed Nashwan Khudhair Mohammed , Kareem Mays M. Abdul Kareem , Hussain Hadeel A. Hussain
Published: May 2021

This study included first attend in Iraq to built a mathematical model predicting the behavior oilspill discharged into Tigris river and the fate of spill along the river. The model included manyfactors such as spreading & oil spill, evaporation; emulsion shoreline closes in river sedge. Thecalculations based on the geographical location of the spill & geometry of the river section also, themodel predicts the speed of Water River and its effect on the oil. Spill spreading along the river. Themodel did not describe the oil spill in one equation but, it divided to steps related together to give thesingle results. The model equation can be solved by computer software designed using visual basicprogram to facility getting result by any use.
Dị ứng thuốc động kinh carbamazepine: Trường hợp Stevens-Johnson
Authors: Nguyễn Văn Khiêm , Thục Thanh Huyền , Nguyễn Thị Vân Anh , Lê Quỳnh Chi , Lê Thị Minh Hương
Published: May 2021

Hội chứng Steven - Johnson (SJS) là một phản ứng nặng ở da do nhiều nguyên nhân,có thể gây nguy hiểm đến tính mạng hoặc để lại nhiều di chứng nặng nề đặc biệt ở trẻ em.Carbamazepine là một trong những nguyên nhân thường gặp. Có mối quan hệ giữa SJS,carbamazepine và HLA-B*1502 trên người châu Á đã được nhiều nghiên cứu chỉ ra. Báo cáo vềca lâm sàng điển hình tại khoa Miễn dịch dị ứng - Bệnh viện Nhi Trung ương về trường hợp trẻmắc SJS sau khi sử dụng carbamazepine, nhóm nghiên cứu muốn góp thêm một bằng chứngvề mối quan hệ giữa ba yếu tố kể trên đối với người Việt Nam.
TỶ LỆ TRẺ SINH NHẸ CÂN TẠI TUYẾN BỆNH VIỆN CỦA TỈNH XIÊNG KHOẢNG, CỘNG HOÀ NHÂN DÂN LÀO NĂM 2020 VÀ MỘT SỐ YẾU TỐ LIÊN QUAN
Authors: Phongphakdy Keobouavanh , Đinh Thị Phương Hoà
Published: May 2021

Cân nặng khi sinh là một chỉ số quan trọng phản ảnh sức khoẻ và dinh dưỡng của bà mẹ và thai nhi. Trẻ sinh nhẹ cân (SNC) có nhiều nguy cơ tử vong, suy dinh dưỡng, chỉ số IQ thấp ở trẻ em và tăng nguy cơ mắc một số bệnh mạn tính khi trưởng thành. Giảm tỷ lệ SNC là một ưu tiên của các can thiệp cộng đồng, vì thế nghiên cứu này được tiến hành nhằm mô tả thực trạng trẻ SNC và một số yếu tố liên quan tại các bệnh viện thuộc tỉnh Xiêng Khoảng, Cộng hoà nhân dân Lào trong năm 2020. Kết quả thu được sẽ là cơ sở để có can thiệp phù hợp giảm tỷ lệ SNC tại địa bàn nghiên cứu. Sử dụng phương pháp mô tả cắt ngang với đối tượng là 899 bà mẹ và 925 trẻ sơ sinh tại bệnh viện tỉnh và 6 bệnh viện huyện. Kết quả cho thấy tỷ lệ trẻ SNC là 8,6% (tuyến tỉnh: 8,2%, tuyến huyện: 9,4%). Trẻ sinh non; Trẻ gái; Con so và trẻ sinh đôi có tỷ lệ SNC cao hơn (theo thứ tự là: 18,9; 9,6; 11,6 và 28,9%). Một số yếu tố từ mẹ liên quan có ý nghĩa thống kê đến SNC bao gồm: nguy cơ của các bà mẹ có BMI < 18,5; không khám thai cao hơn 2,4 và 1,7. Các bà mẹ tăng cân ít (< 5 kg) hoặc quá nhiều (>12 kg) trong thai kỳ có nguy cơ cao hơn 1,7 và 2,1 lần. Bà mẹ có học vấn đại học/sau đại học nguy cơ SNC chỉ bằng 0,6 lần bà mẹ có trình độ trung học. Can thiệp giảm tỷ lệ sinh nhẹ cân tại Xiêng khoảng cần tập trung chăm sóc tốt bà mẹ trong thời gian mang thai, đặc biệt chú trọng tư vấn về khám thai và dinh dưỡng; Ưu tiên các bà mẹ có BMI thấp, có con lần đầu và sinh đôi.
NGHIÊN CỨU ĐẶC ĐIỂM LÂM SÀNG, CẬN LÂM SÀNG VÀ KẾT QUẢ ĐIỀU TRỊ VIÊM MỦ MÀNG NGOÀI TIM Ở TRẺ EM TẠI BỆNH VIỆN NHI TRUNG ƯƠNG
Authors: Ngô Thị Hương , Đặng Thị Hải Vân , Lê Thị Phượng
Published: May 2021

Mục tiêu: Xác định đặc điểm lâm sàng, cận lâm sàng và kết quả điều trị viêm mủ màng ngoài tim ở trẻ em tại Bệnh Viện Nhi Trung ương. Đối tượng và phương pháp: Nghiên cứu trên 42 bệnh nhân viêm mủ màng ngoài tim tại Bệnh viện Nhi Trung ương từ 09/2015-08/2020. Kết quả: Tuổi trung bình nhập viện là 5,4±4,5 tuổi; tỷ lệ nam/nữ là 1,6/1. Triệu chứng thường gặp là sốt 97,6%; khó thở 76,2%; tiếng tim mờ 66,7%; mạch nhanh 71,4%; gan to 59,5%; đau ngực 52,4%. Phản ứng viêm xuất hiện ở hầu hết các bệnh nhân với tăng bạch cầu máu ngoại vi (81%); tăng CRP (100%). Cấy máu dương tính chiếm tỷ lệ thấp (19%); cấy dịch màng tim dương tính chiếm 35,7% trong đó 86,7% là S. aureus và 13,3% là S. pyogen. Siêu âm tim 100% có tràn dịch màng ngoài tim mức độ trung bình hoặc nặng, 61,9% có xẹp nhĩ phải, 81,0% dịch có fibrin. Điều trị nội khoa gồm kháng sinh 100% trong đó thường dùng nhất là vancomycin (83,3%) và cefalosporin thế hệ 3(81%). Có 35,7 % bệnh nhân chỉ cần điều trị nội khoa với chọc dịch hoặc dẫn lưu dịch màng ngoài tim. Điều trị ngoại khoa gồm phẫu thuật cắt màng ngoài tim (52,4%); mổ dẫn lưu dịch màng ngoài tim (7,1%) và mở cửa sổ màng ngoài tim (4,8%). Kết quả điều trị không có bệnh nhân nào tử vong, 2 trường hợp (4,8%) có biến chứng viêm màng ngoài tim co thắt. Kết luận: Viêm mủ màng ngoài tim ở trẻ em là bệnh ít gặp nhưng có thể gây tử vong nếu không được chẩn đoán và điều trị kịp thời. Triệu chứng lâm sàng đa dạng, không đặc hiệu, dễ nhầm lẫn với bệnh khác. Tác nhân thường gặp nhất là S. aureus. Điều trị phối hợp nội ngoại khoa cho kết quả tốt.
KẾT QUẢ PHẪU THUẬT SỬA TOÀN BỘ BỆNH TEO PHỔI KÈM THÔNG LIÊN THẤT Ở TRẺ EM TẠI BỆNH VIỆN E
Authors: Nguyễn Toàn Thắng , Đặng Thị Hải Vân
Published: May 2021

Đặt vấn đề: Teo phổi kèm thông liên thất (TP-TLT) là bệnh tim bẩm sinh phức tạp với đặc trưng cơ bản là sự đa dạng và phát triển bất thường của hệ tuần hoàn phổi. Mục tiêu nghiên cứu nhằm đánh giá kết quả bước đầu phẫu thuật sửa toàn bộ cho nhóm bệnh nhân trẻ em được chẩn đoán mắc dị tật TP-TLT. Phương pháp: Trong thời gian từ tháng 1/2015 đến 12/2019, tổng số 107 trẻ em được chẩn đoán và điều trị bệnh TP-TLT tại Trung tâm tim mạch- Bệnh viện E. Các bệnh nhân được khảo sát và phân loại tổn thương giải phẫu trước khi lên chiến lược phẫu thuật. Nhận xét kết quả sau phẫu thuật bao gồm tỷ lệ tử vong, các biến chứng và tái can thiệp trong quá trình theo dõi. Kết quả: Có 51 bệnh nhân đủ tiêu chuẩn được phẫu thuật sửa toàn bộ bệnh TP-TLT (tỷ lệ đạt sửa toàn bộ 47,7%) với độ tuổi trung bình 31,5 tháng và cân nặng trung bình 9,7 kg. Tỷ lệ tử vong giai đoạn sớm là 9,8% (5 trường hợp), trong đó cả 5 trường hợp thể bệnh TP-TLT type B và 4/5 trường hợp sửa toàn bộ một thì. Tình trạng hẹp giải phẫu hệ động mạch phổi sau mổ chiếm tỷ lệ 71,7%, trong đó chủ yếu là hẹp chạc ba và các nhánh xa của hệ mạch phổi. Tỷ lệ tái can thiệp giai đoạn sớm là 4,3%. Quá trình theo dõi sau phẫu thuật từ 7-64 tháng với nhóm 46 bệnh nhân sống sót, không có trường hợp tử vong giai đoạn muộn. Tỷ lệ tái can thiệp giai đoạn muộn là 43,5%, chủ yếu do nguyên nhân hẹp giải phẫu động mạch phổi. Tỷ lệ bệnh nhân không cần tái can thiệp trong quá trình theo dõi sau phẫu thuật sửa toàn bộ TP-TLT tại các mốc thời gian 1 năm, 2 năm, 3 năm, 5 năm lần lượt là 85%, 70%, 63% và 56%. Kết luận: Phẫu thuật là phương pháp điều trị hiệu quả giúp tái tạo hệ tuần hoàn sinh lý cho các bệnh nhân mắc dị tật TP-TLT. Tỷ lệ hẹp giải phẫu động mạch phổi và tái can thiệp giai đoạn sau mổ do các vấn đề giải phẫu tồn lưu còn ở mức cao và xu hướng tăng dần theo thời gian theo dõi.
Sistem Informasi Pembelian Stok Barang Pada Toko Anguang Dengan Metode Eqq
Authors: Aggry Saputra  , Saharudin  , Meri
Published: May 2021

Toko Anguang adalah Toko yang bergerak di bidang dagang menjual barang-barang sembako. Pengolahan data yang digunakan Toko Anguang saat ini masih menggunakan sistem penyimpanan secara manual, seperti dalam proses merekap pembelian penjualan, termasuk juga dalam membuat laporan bulanan masih dilakukan secara manual. Penerapan pengendalian sediaan sangat penting bagi badan usaha yang bertujuan untuk mendukung pengambilan keputusan organisasi agar didapatkan sediaan yang optimal. Permintaan yang tinggi terhadap barang membutuhkan pengendalian sediaan yang tepat karena organisasi mengeluarkan biaya yang sangat besar untuk sediaan. Sehingga dengan sistem yang ada saat ini dirasa kurang efektif dan kurang efisien, karena sering terjadi kesalahan saat melakukan rekap pembelian. Berdasarkan permasalahan yang ada, penulis melakukan analisa dan merancang sistem baru yang mengantisipasi kelemahan-kelemahan pada sistem yang berjalan tanpa menimbulkan permasalahan-permasalahan baru.