bluuebunny/crossref_metadata_2025 huggingface dataset:
Technology Focus: Seismic (March 2020)
Authors: Egan Mark S.
Published: February 2020

Technology Focus

Two years ago, in this column, I focused on new, exciting technology advances that were being made with the seismic method. Unfortunately, 1 year ago, I had to change the theme to the deepening economic downturn that had occurred in the industry. Happily, though, in this past year, we witnessed several examples of marriage between these two themes. In other words, necessity for survival in hard times provided the impetus for innovation.

For example, in one case of land seismic, the acquisition system was redesigned. This started with the stripping down of the nodal geophone, leaving only the very basic functionality that was needed. Ultimately, this led to a much lighter system, not only reducing power requirements but also the labor needed to deploy (and later retrieve) the ground equipment. In turn, this efficiency led to lower costs while still allowing advancement to the denser, spatial sampling enabled by higher channel counts.

In another case, success was achieved not through changes in technology but rather through changes in business strategy. Historically, when downturns occur, one of the first line items to be cut is the acquisition of new seismic programs. However, the strategy reported by one courageous company was to continue with its usual level of advanced seismic acquisition and processing, while saving costs by reducing the exploration drilling. This strategy of protecting the ability to identify future, high-quality prospects is what led to success.

Continued development of seismic applications occurred in many other disciplines, too, including unconventionals, microseismic, and imaging. This often took place through effective use of multidisciplinary teams and machine learning.

That discussion is supported by the three synopsized papers included in this Technology Focus section, as well as the three papers that are recommended for additional reading. Enjoy.

Recommended additional reading at OnePetro: www.onepetro.org.

SPE 197289 Acquisition of an Ultrahigh-Density 3D Seismic Survey Using New Nimble Nodes Onshore Abu Dhabi by Hani Nehaid, Abu Dhabi National Oil Company, et al.

SPE 197822 Application of Machine Learning To Estimate Sonic Data for Seismic Well Ties, Bongkot Field, Thailand by Nisa Sukkee, PTTEP, et al.

SPE 195522 A Novel Approach to Discovery of Hidden Structures in Microseismic Data Using Machine-Learning Techniques by Maxim Yatsenko, Texas A&M University, et al.
Model Studies for Production-Injection Well Conversion During Line Drive Water Floods
Authors: Ferrell Howard , Irby T.L. , Pruitt G.T. , Crawford Paul B.
Published: February 2020

Published in Petroleum Transactions, AIME, Volume 219, 1960, pages 94–98.

Introduction

In water flooding peripheral, center-to-edge, line-drive or water-encroachment patterns the question has arisen, "when should a producing well be converted to a water-injection well?". It is realized that, if the producing well is shut in when water breakthrough occurs, some oil could be left in an unswept area. Yet, operation to high water-oil ratios may require processing much additional water. If a well is shut in, "where should the unallowable be transferred?". A review of the literature indicates that very few data are available to the engineer to assist him in answering these questions. It is the purpose of this paper to present information which may be of value in selecting the flooding technique and the injection and producing wells and in scheduling injection and production rates.

Certain phases of these problems can be studied in the laboratory. The potentiometric model is well suited for studying many waterflooding problems. This model assumes that steady-state flow exists, that the mobility ratio is equal to one and that gravitational effects are neglected. The three-phase sand model also has been recognized as an effective means for studying certain reservoir problems. Both models were used in making the study reported here. This paper discusses seven cases utilizing various waterflooding techniques. Data for the first five cases were obtained on the potentiometric model. Data for Cases VI and VII were obtained by constructing and flooding an unconsolidated sand pack (a three-fluid-phase system) and by determining the swept area and cumulative oil recovery for various types of operations.

Apparatus and Procedure

The potentiometric model reservoir was 30 in. long X 10 in. wide by about 1/2 in. deep. Four wells were equally spaced in a line array along the lateral center line. (See Fig. 1.) Well No. 1 initially was an injection well for each of the patterns reported. The cases studied with the potentiometric model and sand model are described herein.
The Pembina Miscible Displacement Pilot and Analysis of Its Performance
Authors: Justen John J. , Hoenmans P.J. , Groeneveld H. , Connally C.A. , Mason W.L.
Published: February 2020

Published in Petroleum Transactions, AIME, Volume 219, 1960, pages 38–45.

A miscible displacement pilot using a slug of LPG driven by separator gas was conducted in the Cardium reservoir of the Pembina field. The injection pattern was a 10-acre, inverted, isolated five-spot. Upon completion of the LPG-gas phase, an experiment was conducted using a slug of water followed by gas.

Calculated performance of the pilot is compared with actual performance. Equations are developed to calculate the distribution of LPG into zones of varying permeability, to estimate the progress of the flood at different times in the various zones and to estimate gas rates after breakthrough. The analysis indicates that permeability stratification was a dominant factor in controlling oil recovery and that oil was completely displaced from the swept pore volume.

The results of the pilot indicated that miscible flooding is a practical means of pressure maintenance in this reservoir. The total recovery from the pilot area was good in spite of the early breakthrough of LPG. The effects of stratification were reduced by injecting a slug of water into the partially swept reservoir.

Introduction

The Pembina field, located in Alberta, is the largest oil field in Canada and one of the largest in the North American continent. The reservoir is a stratigraphic trap producing from the Cardium sand. Neither bottom water nor free gas has been found. The recovery of oil by the natural depletion mechanism has been estimated at 12.5 per cent.

Pressure maintenance studies of various areas have indicated that the recovery can be increased 2 1/2 times by water flooding, and a large area of the field is presently under water flood. However, reservoir studies of the North Pembina area indicated that miscible flooding might be competitive with water flooding. A pilot test was conducted to evaluate the performance of a miscible flood.
A Study of Gas-Cap Water Injection in a Peripheral Water Flood
Authors: Griffith J.D. , Riley H.G. , Craig F.F. , Wagner R.J.
Published: February 2020

Published in Petroleum Transactions, AIME, Volume 219, 1960, pages 216–222.

Peripheral water injection has been underway in the Sholem Alechem Fault Block "A" Unit, Stephens County, Okla., since 1955. In the engineering planning of the flood, it was recognized that maintenance of pressure in the large, dry gas caps was vitally necessary to prevent the loss of an estimated 27 million bbl of oil through saturation of the gas caps by the oil banks moving updip on the peripheral flood pattern. The development of an abundant, low-cost water supply and the rising cost of makeup-gas purchases indicated that gas-cap control by water injection was desirable from an economic standpoint, provided an effective water barrier could be placed without premature water breakthrough into downdip oil producers.

A laboratory model scaled to the existing reservoir conditions was constructed to evaluate the feasibility of gas-cap water injection. Model studies indicated thatwater injected at the edge of the gas-oil contact would form a continuous barrier between the oil and gas zones, andwater would advance uniformly downdip without segregation due to gravity effects provided a specified, minimum water-injection rate was maintained.

The model test results also indicated that it was not necessary to fill the gas cap completely with water.

Water injection at the edge of one of the gas caps was initiated in March, 1958, to field test gas-cap water injection. Water breakthrough occurred at a downstructure producing well in April, 1959, after approximately 2.5 million bbl of water had been injected into the gas cap. This was the volume calculated to be required to form the barrier between the oil zone and gas cap. This performance indicates that prevention of oil encroachment into dry gas caps in a peripheral water flood by water injection at the gas-oil contact appears practical and that the model studies provided a valid prediction of field performance.

Introduction

The Sholem Alechem Fault Block "A" Sims Sand Unit was one of the first major waterflood projects in Oklahoma to utilize a peripheral injection pattern. Design of control measures to minimize oil encroachment into the large crestal gas caps was one of the greatest single problems during engineering planning of this flood. Engineering studies indicated that saturation of the gas caps with oil displaced by the peripheral water flood could result in a loss of about 27 million bbl of oil, or over one-half the estimated waterflood recovery. This estimate was based on a residual oil saturation after water flooding of 35 per cent pore volume, compared to the negligible oil saturation initially in the gas caps.
Interference Between Oil Fields
Authors: Hurst William
Published: February 2020

Published in Petroleum Transactions, AIME, Volume 219, 1960, pages 175–192.

What is entailed here is the extension of the simplified material balance formulas to encompass interference between oil fields. As previously reported, the explicitness as so revealed for the cumulative pressure drop as a function of all factors contributing to its change in the material balance equation, is now transcribed through the inter-communicating aquifer to effect an increased pressure drop on an adjoining field by interference. Such is performed by mathematical analyses and the application of the Laplace transformations.

What is accomplished is that the reiteration problems previously associated with interference studies are nullified, since volumetric changes for the fluids in situ are automatically adjusted by the explicitness so expressed, and what pertains to the superposition principle applies only to the impeded water drive upon a subject field, which Is likewise incorporated in the over-all pressure drop that results.

The mathematics treats with the rigorous solution of the problem, as well as with methods easily amenable to numerical interpretation by the practicing engineer. In all cases, however, what is deduced for areal extents, reveal interference between wells when time becomes large that further substantiate the analyses.

Probably of equal significance, all variables and formation characteristics are accounted for. This applies to the differences in PVT analyses that occur from field to field and the physical parameters associated with the lithology of the reservoirs. The latter is deduced from a rigorous interpretation of the unsteady-state flow problem for sands of different permeabilities in series. Thus, what purports to be a trial-and-error calculation to include variations in sand conditions within the intercommunicating aquifer to define water drive has little importance compared to the designation of such parameters at the reservoir to constitute the essential criteria.

Introduction

In a recent publication, the reader has been introduced to the simplified material balance formulas. It has been shown that the complexities formerly associated for identifying and determining reservoir pressure in the material balance relationship can be resolved by treating with the Laplace transformations, the inversion of which reveals pressure as an explicit function of all factors contributing to its change.
Liquid-Density Correlation of Hydrocarbon Systems
Authors: Madrazo Aurelio
Published: February 2020

Published in Petroleum Transactions, AIME, Volume 219, 1960, pages 386–389.

The Standing-Katz method for predicting liquid densities of reservoir fluids has been tested using experimental data of 154 bottom-hole or recombined reservoir fluid samples. New pressure- and temperature-correction curves for the Standing-Katz type correction are presented which improve the accuracy of prediction.

Introduction

The present study was undertaken to investigate the known methods of determining liquid densities and to select one of them which might yield a better correlation if additional data were employed. An appropriate correlation would incorporate the following characteristics:ease of handling in the computations,results within engineering accuracy anddata easily accessible.

After careful investigation of the different methods, the Standing-Katz correlation appeared to have these characteristics. The Standing-Katz correlation for liquid densities of hydrocarbon systems is based upon limited data. The original work, which employs apparent densities for methane and ethane, was based on data of 15 saturated crude oils in equilibrium with natural gas. Therefore, if test of the correlation using additional experimental data would serve either to validate the Standing-Katz correlation or to form a basis for corrections if such were necessary.

Procedure and Graphical Solution

The data of 154 bottom-hole or recombined reservoir fluid samples were employed to calculate the densities at 14.7 psia and 60 degrees F by the method described in Table 1. Volume contributions for methane and ethane were assigned from the pseudo liquid density plot (Fig. 1), but volume contributions for N2, CO2 and H2S were not considered. The densities computed at reference conditions of 14.7 psia and 60 degrees F were then elevated to their respective temperatures and pressures by the use of the correction curves proposed by Standing. The percentage differences between the experimental values and the calculated values were determined: these samples were grouped into temperature, pressure and density ranges to determine a possible trend. It appeared that, at temperatures above 160 degrees F, the calculated density values were consistently larger than the experimental density values; however, no obvious trend was found for the density and pressure ranges.
Preoperative Risk Prediction of heart failure with Numerical and Textual Attributes
Authors: Chen Yuwen , Zhang Lige , Qin Xiaolin , Yi Bin
Published: February 2020

Background: The occurrence of perioperative heart failure will affect the quality of medical services and threaten the safety of patients. It is of great significance to improve the quality of medical service and ensure the safety of patients with perioperative heart failure by scientific method. Methods: Firstly, the data of preoperative patients are preprocessed, and the patient data is divided into the structural data of numerical data and the unstructured data of textual data. The numerical data of the patient is constructed by the gradient boosting tree model, and the textual features of the patients are extracted by the topic model of the text-based data. Fusion of textual features and numerical features, and finally through a simple logistic regression to predict the patient critical illness. Results: To evaluate the performance of the proposed method, we made preoperative prediction of critical events of heart failure in perioperative period based on the real operative data of patients from a hospital, and the results showed that the sensitivity and specificity of the model proposed could reach 94% and 97%, thus verifying the feasibility and effectiveness of the model. Conclusions: a novel method of predicting preoperative critical disease is proposed for the properties of medical heterogeneity data in perioperative patients. This work is the first study that integrates the numerical laboratory data and textual diagnostic data of patient for extracting the predictive feature by XGBOOST and LDA model respectively, and builds a low cost, scalable and effective model of predicting preoperative critical disease by using logistic regression. The experimental demonstrate show that it is better to predict whether the patients have heart failure with Numerical and Textual Attributes of patients
Determination of the effect size of an observed factor based on a multi-variate model for evaluating practical significance of differences between two groups of case-control design
Authors: Hui Liu
Published: February 2020

Background To determine the effect size of an observed factor for a disease by using consistency in a cohort study (CRC) for evaluating practical significance of differences between two groups of case-control design. Methods A model of multiple pathogenic factors was established by analyzing the number and distribution of observed factors in a study population. The difference in the incidence between two groups (exposed and unexposed) was calculated according to the model as CRC. The relationship of Youden’s index and true and false-positive ratio (TFR) in case-control design were observed with CRC. Results The CRC was able to correctly reflect the number of factors combined in the models, and therefore, indicates that CRC is a reasonable indicator of effect size. Difference scores <0.25 indicate that one of four or more factors plays a role in a disease; scores >0.50 indicate one of two factors plays a role in disease and implies a high intensity level of the factor. TFR could correctly reflect CRC. Accordingly, a factor with an effect size (i.e., CRC) less than 6.0 should not be considered a clinically significant factor, even if the observed difference is statistically significant. Conclusions A CRC over 0.25 OR TFR over 6.0 is suggested as an indicator of a substantial effect size.
The use of hypnotics for primary insomnia in Saudi Arabia: a survey of patients’ experiences and perceptions
Authors: Dobia Ali , Ryan Kath , Abutaleb Mohammed , BaHammam Ahmed , Edwards Alexander
Published: February 2020

Background: This study investigated the experiences and perceptions of Saudi patients with primary insomnia.Method: A cross-sectional design study (July 2019) using a self-administered questionnaire survey.Results: Sixty-eight patients with primary insomnia participated (53% male, 47% female; 60% were younger than 45 years and a majority had a university-degree education level). Of the respondents, 64.7% were dissatisfied with their knowledge of insomnia and 97% wanted more information about its treatment. Approximately 59% used prescribed sleep medicines from the first instance and only 6% were referred to a psychologist for counselling. Benzodiazepines and Z-drugs were prescribed for 16% and 19% of respondents, respectively. A majority of respondents were given antihistamines or over-the-counter herbs. While 60% of patients used medications for long periods, 87% were not involved in treatment decisions. For those on long-term use, 80% were not seen regularly by doctors and 93% were provided with no plan for medicine discontinuations. More than 60% of respondents said that sleeping pills were best for treating insomnia and 31% believed they are safe and would continue taking them. More than 45% would not prefer non-pharmacological treatments (e.g., counselling).Conclusions: Responses to the survey indicate a lack of knowledge about primary insomnia and its treatment among Saudi patients. Prescribing hypnotics is the most common treatment, non-pharmacological treatments are seldom used, and responses indicated inappropriate and long-term use of hypnotics. Patients should be better educated about insomnia and its treatment. Physicians should consider using non-pharmacological treatments and the Saudi Ministry of Health should develop country-specific guidelines.
Epidemiology, species distribution and outcome of nosocomial Candida spp. bloodstream infection in Shanghai — A retrospective of 11-year clinical analysis in a shanghai tertiary hospital
Authors: Zheng yanjun , Ting xie , Wu lin , Liu xiaoying , Zhu ling , Chen ying , Mao enqiang , Chen erzhen , Yang zhitao
Published: February 2020

Background: Candida spp. are important opportunist pathogens causing bloodstream infections (BSIs). The present study aims to describe the current epidemiology of Candida BSI in a large Shanghai Tertiary-care Hospital from 2008 to 2018, and to identify the risk factors and the impact of antifungal therapy on clinical outcome.Methods: From January 2008 to December 2018, all consecutive patients who developed Candida BSI at Ruijin Hospital were enrolled. Underlying diseases, clinical severity, species distribution, antifungal therapy and its impact on the outcome were analyzed.Results: The incidence of nosocomial Candida BSI was 0.39 episodes/1000 hospitalized patients, and overall 30-day mortality rate was 28.5%. Among the 393 cases of Candida BSI, 299 cases (76.1%) received antifungal therapy. 247 received appropriate antifungal therapy, and 52 received delayed antifungal therapy (5 days after onset of Candida BSI). The 30-day mortality rate was significantly lower in those who received appropriate antifungal therapy or delayed antifungal therapy compared with those who did not receive antifungal therapy (25.5% and 23.1% vs. 39.4%，P=0.012 and P=0.046). In multivariate Cox regression analysis, age, chronic renal failure, mechanical ventilation, neutropenia were independent risk factors for the 30-day mortality rate, while antifungal therapy was a protective factor for short-term survival rate.Conclusion: The epidemiology of Candida BSI in Shanghai differed from that observed in Western countries. Antifungal therapy did influence the short-term survival, while there was no significant difference between the mortality for those who received appropriate antifungal therapy and for those who received delayed antifungal therapy.
Embryo incubation and assessment by time-lapse system versus conventional incubators in Chinese women with diminished ovarian re serve undergoing IVF/ICSI : a study protocol for a randomized controlled trial
Authors: Chen Miaoxin , Wu Yuanyuan , Huang Xin , Li Wentao , Sun Chunyan , Meng Zhenzhen , Ai Ai , Hong Ling , Tang Chuanling , Li Kunming , Fu Yonglun , Chen Zhiqin , Kong Pengcheng , Guo Yi , Liu Wenqiang , Mol Ben W , Teng Xiaoming
Published: February 2020

Background: Time-lapse imaging system (TLS) is a newly developed non-invasive embryo assessment system. Compared with conventional incubators, it provides stable culture condition and consistent observation of embryo development, thereby improving embryo quality and selection. In theory, these benefits could improve clinical outcomes of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). Although this system has been routinely used in many IVF centers globally, it remains unclear if the TLS results in higher cumulative live birth rate and high-quality evidence is warranted. The purpose of this study is to compare the effectiveness of the TLS with conventional incubators in infertile diminished ovarian reserve (DOR) patients. Methods: This study is a double-blind randomized controlled clinical trial (1:1 treatment ratio of TLS vs. conventional incubator). A total of 730 DOR patients undergoing the first or second cycle of IVF or ICSI will be enrolled and randomized into two parallel groups. Participants in group A will undergo embryo culture and selection in the TLS, and participants in group B will undergo embryo culture in the conventional incubators and embryo selection by the morphological characteristics. The primary outcome is the cumulative live birth rate of the trial IVF/ICSI cycle within 12 months after randomization. This study is powered to detect an absolute difference of 10% (35% vs 25%) at the significance level of 0.05 and 80% statistical power based on a two-sided test. Discussion: The results of this study will provide evidence for the efficacy and safety of time-lapse system compared with conventional incubators in patients with DOR undergoing IVF/ICSI. Trial registration: Chinese Clinical Trial Registry, ChiCTR1900027746. Registered on 24 Nov 2019.
Transarticular invasion of primary bone tumors abutting the sacroiliac joint: an MRI study in 128 patients
Authors: Ding Lei , Yin Junqiang , Zhang Fangling , Wang Yongqian , Zou Changye , Gao Zhen-hua
Published: February 2020

Background: To investigate magnetic resonance imaging (MRI) manifestation of transarticular invasion of primary bone tumors abutting the sacroiliac joint. Methods: We conducted a retrospective analysis of MRI data in 128 patients from January 2004 to December 2015. The diagnosis confirmed by surgical findings and pathological examination. The tumors of 87 patients located in the ilium and 41 patients in the sacrum. Tumors were divided into high-grade (Group 1), low-grade (Group 2) malignant tumor group and intermediate tumor group (Group 3). Transarticular invasion routes included 3 types: across ligament (Type 1), across articular cartilage (Type 2) and across periarticular tissue (Type 3). Results : Transarticular invasion were observed in 33 patients (25.8%): Group 1 (22 patients) included 15 patients (51.7%) with conventional osteosarcoma and 7 patients (43.8%) with Ewing's sarcoma; Group 2(5 patients) included 4 patients (11.4%) with central chondrosarcoma and 1 patient (7.7%) with chordoma; Group 3(6 patients) included 4 patients (20.0%) with giant cell tumor of bone, 1 patient (16.7%) with chondroblastoma and 1 patient (11.1%) with aneurysmal bone cyst. The difference of transarticular invasion incidence was not significant statistically between primary iliac and sacral tumors ( P > 0.05). The differences were significant statistically between group 2 and group 1, group 3 and group 1, respectively ( P < 0.01). Significant differences were observed among different invasion types ( P < 0.01): type 1(31 times), type 2(15 times) and type 3(5 times). Conclusions: MRI is sensitive and useful to evaluate transarticular invasion of primary bone tumors abutting the sacroiliac joint.
Performance and microbial community of the CANON process in a sequencing batch membrane bioreactor with elevated COD/N ratios
Authors: Zhang Xiaoling , Liu Xincong , Zhang Meng
Published: February 2020

In this study, the effects of elevated chemical oxygen demand/nitrogen (COD/N) ratios on nitrogen removal, production and composition of the extracellular polymer substances (EPS) and microbial community of a completely autotrophic nitrogen removal via nitrite (CANON) process were studied in a sequencing batch membrane bioreactor (SBMBR). The whole experiment was divided into two stages: the CANON stage (without organic matter in influent) and the simultaneous partial nitrification, anaerobic ammonia oxidation and denitrification (SNAD) stage (with organic matter in influent). When the inflow ammonia nitrogen was 420 mg/L and the COD/N ratio was no higher than 0.8, the addition of COD was helpful to the CANON process; the total nitrogen removal efficiency (TNE) was improved from approximately 65% to more than 75%, and the nitrogen removal rate (NRR) was improved from approximately 0.255 kgN/(m3·d) to approximately 0.278 kgN/(m3•d), while the TNE decreased to 60%, and the NRR decreased to 0.236 kgN/(m3•d) when the COD/N ratio was elevated to 1.0. For the EPS, the amounts of soluble EPS (SEPS) and loosely bound EPS (LB-EPS) were both higher in the CANON stage than in the SNAD stage, while the amount of tightly bound EPS (TB-EPS) in the SNAD stage was significantly higher due to the proliferation of heterotrophic bacteria. The metagenome sequencing technique was used to analyse the microbial community in the SBMBR. The results showed that the addition of COD altered the structure of the bacterial community in the SBMBR. The amounts of Candidatus ‘Anammoxoglobus’ of anaerobic ammonia oxidation bacteria (AAOB) and Nitrosomonas of ammonia oxidizing bacteria (AOB) both decreased significantly, and Nitrospira of nitrite oxidizing bacteria (NOB) was always in the reactor, although the amount changed slightly. A proliferation of denitrifiers related to the genera of Thauera, Dokdonella and Azospira was found in the SBMBR.
Bi-microbial Healthcare-Associate Endocarditis caused by Enterococcus faecalis and Burkholderia cepacia: A Case Report and literature review
Authors: Ghori Masood , Al Matrooshi Nadya O. , Al Jabbari Samir , Bafadel Ahmed , Bhatnagar Gopal
Published: February 2020

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Infective Endocarditis (IE), a known complication of hemodialysis (HD), has recently been categorized as Healthcare-Associated Infective Endocarditis (HAIE). Single pathogen bacteremia is common, polymicrobial endocardial infection is rare in this cohort of the patients. We report a case of endocarditis caused by Enterococcus faecalis (E. faecalis) and Burkholderia cepacia (B. cepacia), a first ever reported combination of a usual and an unusual organism, respectively, in a patient on HD. Clinical presentation of the patient, its complicated course ,medical and surgical management ,along with microbial and echocardiographic findings is presented herein. The authors believe that presentation of this case of HAIE may benefit and contribute positively to cardiac science owing to the rare encounter of this organism as a pathogen in infective endocarditis and the difficulties in treating it.
Profesionalisme Pendidik Anak Usia Dini
Authors: Christianti Martha
Published: February 2020

Pendidikan anak usia dini merupakan awal dari pendidikan yang lebih tinggi dan menjadi kunci dalam memperbaiki kualitas bangsa. Untuk mendapatkan hasil pembentukan anak yang berkualitas salah satunya didukung oleh pendidik yang profesional. Pendidik anak usia dini yang profesional memiliki ciri yaitu memiliki landasan keilmuan yang kuat tentang perkembangan anak dan belajar efektif, bersikap optimis dan memiliki pendekatan “aku bisa”, hangat dan memiliki empati, spontanitas dan fleksibel, memiliki keahlian dalam melakukan refleksi dan analisis, memiliki kemampuan untuk berkomuniksasi dengan banyak orang, memiliki kemampuan memimpin, bermain penuh dan mampu menciptakan kegiatan belajar yang menyenangkan, memiliki imajinasi dan kreativitas yang tinggi, mampu merancang program dan melaksanakan pembelajaran yang mengacu pada analisis kebutuhan anak, dan kemampuan untuk secara terus menerus mendokumentasikan  serta melakukan penilaian pada perkembangan pada anak.   Kata kunci: Profesionalisme, Anak Usia Dini
Meningkatkan Kemampuan Keaksaraan Anak dengan Permainan Balok Geometri Huruf
Authors: Nurrohmah Siti
Published: February 2020

Dunia anak adalah dunia bermain. Anak menghabiskan sebagian besar waktunya untuk bermain. Sebagian anak merasa senang dan tertarik dengan permainan balok. Anak-anak bermain menyusun balok-balok menjadi berbagai bentuk bangunan. Selain mengembangkan kemampuan kognitif dan kreativitas, balok juga dapat digunakan untuk mengembangkan aspek keaksaraan dengan membuat balok geometri huruf. Balok geometri huruf memanfaatkan bentuk-bentuk geometri seperti persegi panjang, kotak, lingkaran, setengah lingkaran, dan bentuk tertentu yang digunakan untuk mengenalkan dan meingkatkan kemampuan keaksaraan anak. Balok geometri huruf terdiri dari dua jenis, yakni balok geometri huruf kecil dan balok geometri huruf besar.Balok geometri memiliki jenis, ukuran, dan jumlah tertentu. Setiap set huruf memiliki semua unsur balok pembentuk huruf alfabetis dari a hingga z. Kata kunci: meningkatkan, kemampuan keaksaraan, balok geometri huruf
Pengaturan Ruang Kelas Untuk Inclusive Preschool (Studi Kasus di TK Al-Falah Ciracas Jakarta Timur)
Authors: Adiarti Wulan
Published: February 2020

Studi ini bertujuan untuk pengaturan ruang kelas lingkungan ditentukan Inklusif di TK Al Falah, Ciracas, Jakarta Timur. Penelitian diambil di TK Al Falah yang terdiri dari 36 anak. Model penelitian yang digunakan adalah model kualitatif jenis studi kasus. Alur penelitian menggunakan alur maju bertahap Spradley yang meliputi dua belas tahap, yaitu: (1) penentuan status sosial, (2) observasi partisipatif, (3) notasi etnografi, (4) penelitian deskriptif, (5) analisis domain, (7) analisis taksonomi, (8) observasi selektif, (9) analisis komponen, (10) analisis tema, (11) mendiskusikan budaya perilaku, dan (12) menuliskan etnografi. Data dikumpulkan dengan observasi, wawancara dan analisis dokumen. Hasil penelitian menunjukkan pengaturan kelas inclusive preschool dilakukan dengan menjaga rasio yang ideal, ukuran play zone, mobilitas ruang, pengelompokan anak, variasi kegiatan, dan pengklasifikasian alat bermain. Kata kunci: pengaturan ruang kelas, inclusive, preschool
Membangun Sekolah Idola
Authors: Ningsih Nuwu
Published: February 2020

Untuk membangun sekolah yang menyenangkan, yaitu sebuah sekolah yang membuat seluruh komponen warganya merasa nyaman, aman, merasa diterima, diperhatikan, dibimbing, diarahkan, dan mendapat pengakuan, maka dibutuhkan metode dan langkah- langkah yang jelas. Langkah-langkah tersebut tidak hanya jelas, tetapi praktis dan mudah dipahami, sehingga mudah diterjemahkan oleh warga sekolah dalam kinerjanya sehari-hari. Hal yang perlu diperhatikan antara lain bahwa sekolah perlu membangun budaya kerja profesional sebagai cerminan pendidikan karakter, menerapkan gaya kepemimpinan situasional, menerapkan prinsip-prinsip belajar Ki Hajar Dewantara dan adanya penguatan budaya pembelajar. Kata kunci: membangun, sekolah
MEMBACA PERMULAAN MELALUI KEGIATAN MENEBALKAN HURUF
Authors: Ramadani Risky
Published: February 2020

Artikel ini mengenai membaca permulaan melalui kegiatan menebalkan huruf pada anak kelas 1 Sekolah Dasar Negeri 10 Terangun.Membaca permulaan pada anak – anak belum berkembang optimal.Anak – anak tidak bisa membedakan lambang huruf kemudian menuliskannya. Guru membutuhkan kegiatan yang menarik untuk mengoptimalkan perkembangan bahasa tersebut, yaitu kemampuan membaca permulaan. Kemampuan membaca permulaan melalui kegiatan menablkan huruf dipilih dan cenderung menarik, karena anak – anak bisa menuliskan ulang baik itu di buku tulis masing – masing maupun di papan tulis.Menebalkan huruf menggunakan warna – warna yang menarik menambah keinginan anak untuk belajar. Melalui menebalkan huruf, kemampuan membaca permulaan pada anak dapat berkembang secara optimal.Dari sepuluh siswa di kelas I, Sembilan diantaranya sudah dapat mengenal dan membedakan lambang huruf.Kata kunci : membaca permulaan, menebalkan huruf, siswa kelas I SD N 10 Terangun
PELATIHAN BATIK JUMPROT DAN LAGU DOLANAN TRADISIONAL PADA KADER PAUD DI DESA DLINGGO BANTUL YOGYAKARTA
Authors: Pamungkas Joko
Published: February 2020

Pelatihan pelatihan batik jumprot dan lagu dolanan tradisional dilaksanakan dengan melibatkan kader PAUD di wilayah Kecamatan dlinggo bantul yogyakarta  sebanyak 64 peserta pada hari pertama dan 67 peserta pada hari kedua. Kegiatan ini dilakukan dengan metode  ceramah, diskusi, dan demonstrasi serta praktek membuat  batik jumput dan praktek menyanyi  lagu dolanan tradisional. Kegiatan pelatihan dilaksanakan selama dua hari yaitu hari senin tanggal  8 juni  2015 dan hari kamis  tanggal 11 juni 2015. Kegiatan ini terbagi ke dalam 2 kegiatan. Kegiatan  pertama tentang pelatihan batik jumputan dilaksanakan di hari pertama, dan praktek lagu dolanan tradisioanl  dilaksanakan di hari kedua. Pelaksanaan kegiatan pelatihan batik jumput dan lagu dolanan tradisional pada kader paud di kecamatan dlingo bantul Yogyakarta  dapat dikatakan berhasil. Terbukti dari hasil proses kegiatan yang yang didukung semua pihak baik muspida, pamong paud serta masyarakat tempat pelatihan  ,antosias para peserta yang cukup tinggi dalam mengikuti teori serta praktek materi pelatihan  di dukung dengan banyaknya hasil produk batik jumputan  yang dihasilkan dari peserta Kata Kunci: Jumprot, Dlinggo
Understanding Weight Loss via Online Discussions: Content Analysis of Reddit Posts Using Topic Modeling and Word Clustering Techniques
Authors: Liu Yang , Yin Zhijun
Published: February 2020

Background

Maintaining a healthy weight can reduce the risk of developing many diseases, including type 2 diabetes, hypertension, and certain types of cancers. Online social media platforms are popular among people seeking social support regarding weight loss and sharing their weight loss experiences, which provides opportunities for learning about weight loss behaviors.

Objective

This study aimed to investigate the extent to which the content posted by users in the r/loseit subreddit, an online community for discussing weight loss, and online interactions were associated with their weight loss in terms of the number of replies and votes that these users received.

Methods

All posts that were published before January 2018 in r/loseit were collected. We focused on users who revealed their start weight, current weight, and goal weight and were active in this online community for at least 30 days. A topic modeling technique and a hierarchical clustering algorithm were used to obtain both global topics and local word semantic clusters. Finally, we used a regression model to learn the association between weight loss and topics, word semantic clusters, and online interactions.

Results

Our data comprised 477,904 posts that were published by 7660 users within a span of 7 years. We identified 25 topics, including food and drinks, calories, exercises, family members and friends, and communication. Our results showed that the start weight (β=.823; P<.001), active days (β=.017; P=.009), and median number of votes (β=.263; P=.02), mentions of exercises (β=.145; P<.001), and nutrition (β=.120; P<.001) were associated with higher weight loss. Users who lost more weight might be motivated by the negative emotions (β=−.098; P<.001) that they experienced before starting the journey of weight loss. In contrast, users who mentioned vacations (β=−.108; P=.005) and payments (β=−.112; P=.001) tended to experience relatively less weight loss. Mentions of family members (β=−.031; P=.03) and employment status (β=−.041; P=.03) were associated with less weight loss as well.

Conclusions

Our study showed that both online interactions and offline activities were associated with weight loss, suggesting that future interventions based on existing online platforms should focus on both aspects. Our findings suggest that online personal health data can be used to learn about health-related behaviors effectively.
Potency of stored DNA derived from buccal mucosal epithelial cells for genotype analysis of interleukin 4 -590 C/T
Authors: Sari Rezmelia , Fadhilah Alya Nur , Prayitno Prayitno
Published: February 2020

The genotype variation of the interleukin 4 (IL-4) gene on spot -590 C/T is known to correlate with IL-4 protein expression in periodontitis, but the results found in the population are inconsistent. Sequencial genotype analysis of multiple genes often used stored DNA samples obtained from buccal mucosal epithelial cells. This study aims to determine the use of stored DNA samples obtained from buccal mucosal epithelial cells for genotype analysis specifically on -590 C/T IL-4 genes. This is a descriptive analytical study. The samples were 58 DNA derived from the buccal mucosal epithelial cells taken by sterile cotton swab isolated with PrestoTM kit (GeneAid). The DNA has been stored for 2 years at -20 °C. The genotype analysis was conducted using PCR RFLP technique with BSmFI enzyme and the data were presented descriptively. The results show that 51.72% of the stored DNA is still in good condition and 37.9% can be used for genotype analysis. It was concluded that DNA derived from buccal mucosal epithelial cells stored at -20 °C for 2 years can still be used for genotype analysis, but the quality of DNA is affected by storage time.
Local application of biphosphonate as a biochemical barrier against bone graft resorption in mandibular reconstructio
Authors: Hanif Romzi , Rahmat Muhammad Masykur , Hasan Cahya Yustisia
Published: February 2020

Mandibular reconstruction to restore functions and aesthetics after mandibular resection remains a major surgical challenge. This type of reconstruction using non-vascularized autogenous bone graft harvested from iliac bone has been popular given that this bone is numerous and donor site morbidity can be minimized, however, it is highly resorbable. Local application of bisphosphonate by immersing bone graft in biphosphonate manages to inhibit bone graft resorption prior to the formation of new bone to support the osteogenesis and osteointegration of bone grafts. This paper aimed at examining the positive results of iliac bone graft osteogenesis and osteointegration following local application of bisphosphonate in mandibular reconstruction. A 22-year-old female patient came with a complaint of painless right cheek mass that has swollen slowly since 2 years. Radiographic examination showed cloudy radiolucent images in the right mandibular corpus to the right mandibular ramus, while histopathological examination indicated ossifying fibroma. Patient underwent mandibular resection followed by iliac bone graft-based mandibular reconstruction. Bone graft was immersed with bisphosphonate (zoledronate acid 0.005 mg /ml) for 3 minutes, then rinsed with saline for 3 minutes, followed by fixing bone graft on the reconstruction plate. Postoperative follow up in the 36th week showed no signs of infection and dehiscence in the surgery site, and the radiographic examination indicated signs of osteogenesis and osteointegration of mandibular bone graft. Local application of biphosponate on bone graft promotes favorable results of osteogenesis and osteointegration in mandibular reconstruction.
Locus of control: Upaya untuk menurunkan social loafing
Authors: Sumantri M. Arief , Pratiwi Iqlima
Published: February 2020

Abstrak. Penelitian ini menggunakan pendekatan kuantitatif, ditujukan untuk mengetahui pengaruh locus of control, baik secara internal maupun eksternal terhadap social loafing dalam penyelesaian tugas kelompok. Social loafing merupakan fenomena menurunnya performansi (upaya/usaha) individu didalam pengerjaan tugas berbasis kelompok, hal yang tentu saja akan berdampak pada kinerja serta kepuasan kelompok. Pengambilan sampel menggunakan non-probability sampling dengan teknik accidental sampling pada populasi mahasiswa jurusan kependidikan (calon guru), dengan jumlah keseluruhan partisipan sebanyak 147 mahasiswa (45 tryout skala, 102 uji hipotesis). Pengukuran tiap variabel memodifikasi konstruk skala dari penelitian sebelumnya, yang merujuk pada Levenson untuk locus of control dan Latane untuk social loafing. Pengumpulan data menggunakan skala psikologis dalam bentuk kuesioner, kemudian dianalisis menggunakan uji regresi linier untuk mengetahui seberapa besar pengaruh locus of control baik secara internal maupun eksternal terhadap sosial loafing. Locus of control internal dalam penelitian ini terbukti mampu menurunkan social loafing (sig. 0,000), dengan Nilai R Square (kontribusi pengaruh) pada tabel koefisien determinasi senilai 0,211 atau sebesar 21,1%, sedangkan Locus of control eksternal tidak memberikan kontribusi pengaruh sama sekali.  Kata Kunci: Social Loafing, Locus of control, Tugas KelompokAbstract: This study uses a quantitative approach, intended to determine the effect of locus of control, both internally and externally on social loafing in completing group assignments. Social loafing is a phenomenon of decreasing individual performance (effort) in group-based assignments, thing which of course will have an impact on group performance and satisfaction. Sampling in this study used accidental sampling on population college students of education majors (prospective teachers), with the total number of participants as many as 147 college students (45 scale tests, 102 hypothesis tests). The measurement of each variable modifies the scale construct from previous research, which refers to Levenson for locus of control and Latane for social loafing. Data collection uses a psychological scale in the form of a questionnaire, analyzed using linear regression tests to determine how much influence locus of control both internally and externally on social loafing. Internal locus of control in this study proved to be able to reduce social loafing (sig. 0,000), with R Square Value (influence contribution) in the coefficient of determination table worth 0.211 or 21.1%, while external Locus of control did not contribute influence at all.Keywords: Social Loafing, Locus of control, Group Tasks
Pengaruh psikoedukasi mindfulness singkat pada kemampuan regulasi emosi mahasiswa
Authors: Islamiyah Achaddiana , Sismawati Mei , Kaaloeti Dian Veronika Sakti
Published: February 2020

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian psikoedukasi singkat mengenai mindfulness terhadap kemampuan regulasi emosi pada mahasiswa baru Universitas Diponegoro. Transisi menuju kehidupan perkuliahan adalah masa yang penuh tekanan. Sehingga diperlukan keterampilan psikologis untuk beradaptasi dengan baik. Salah satunya adalah regulasi emosi. Sebanyak 5 partisipan termasuk 2 laki-laki dan 3 perempuan mahasiswa baru dari beberapa fakultas di lingkungan Universitas Diponegoro direkrut dan diberikan edukasi mengenai mindfulness selama 1 minggu. Penelitian ini  menggunakan desain satu kelompok pretest dan posttest, dengan menggunakan dua skala untuk mengukur perubahan dalam regulasi emosi dan kesadaran. Uji wilcoxon signed rank  dan statistik deskriptif digunakan untuk mengevaluasi efek perlakuan yang diberikan. Analisis statistik menunjukkan bahwa tidak ada perbedaan signifikan di antara kemampuan regulasi emoi (p=0,0025) dan kesadaran (p=0,680). Tetapi perbandingan rata-rata menunjukkan adanya sedikit peningkatan. Implikasi dari temuan ini akan didiskusikan.Kata kunci: adaptasi, mahasiswa baru, mindfulness, regulasi emosi Abstract. The aim of this study is to investigate the effect of brief mindfulness psychological education to emotional regulation skill of first-year student of Diponegoro University. Transition to university life is a stressful period. Therefore, in order to successfully adapt, there are some psychological skills that need to be developed. One of them is emotional regulation. This study is a quasi-experiment with one group pretest-posttest design. Five participant included 2 male and 3 female of first-year student from varieties of faculty at Diponegoro University were recruited and given the psychological education of mindfulness in one week span. Two scale were used to measure the changes in emotional regulation and mindful-state. Wilcoxon signed rank test and statistic descriptive were used to evaluate the effect. The statistical analysis revealed that there were no significant difference in both emotional regulation skills (p=0,225) and mindful-state (p=0,680). But, mean comparison suggested that there were slightly increase. The implication of this finding are discussed. Keyword: adaptation, emotional regulation, first-year university student, mindfulness