bluuebunny/crossref_metadata_2025 huggingface dataset:
Apontamentos de Matemática de Dom Ireneu Penna: construção de um impresso didático
Authors: Dassie Bruno Alves , Morais Letícia Maria Ferreira da Costa de
Published: April 2019

O objetivo deste texto é apresentar o processo de constituição do impresso didático Apontamentos de Matemática de Dom Ireneu Penna, destinado ao ginásio do Colégio de São Bento do Rio de Janeiro. Para isso, o texto é guiado pela rede de relações que o historiador Robert Darnton apresenta para a constituição de um livro. Após uma nota biográfica sobre o autor dos impressos, explica-se o contexto educacional da época em que eles surgiram – final da década de 1960, durante o Movimento da Matemática Moderna. Segue-se a análise do nascimento dos impressos, cujo surgimento deve-se à insatisfação do autor quanto aos manuais escolares disponíveis e a uma admiração pela coleção de livros didáticos do matemático belga Papy. A análise documental das fontes encontradas no acervo pessoal de Dom Ireneu, principalmente, leva-nos à conclusão de que a concepção dos Apontamentos é a imbricação de uma conjuntura educacional e política, de um encantamento e de uma influência intelectual de Papy, de uma questão relacionada aos editores e de uma existência de leitores/usuários.
Exposé moderne des mathématiques élémentaires: quando uma obra precede sua autora
Authors: Búrigo Elisabete Zardo
Published: April 2019

O artigo trata da produção do livro Exposé moderne des mathématiques élémentaires, pela autora francesa Lucienne Félix, e de sua recepção, no Brasil, pelos professores integrantes do Grupo de Estudos em Ensino de Matemática (GEEM), criado em São Paulo, em 1961. A partir da interpretação de relatos autobiográficos e de outros documentos, argumenta-se que a apresentação da obra, no Brasil, precedeu a da autora, não apenas no plano cronológico, mas também do ponto de vista do reconhecimento, da legitimidade e da difusão de ideias de inovação do ensino, que participaram da onda internacional conhecida como Movimento da Matemática Moderna. Em suas traduções e edições, o livro percorreu caminhos inesperados para uma obra de professora do ensino secundário que não contava com o apoio do Ministério da Educação francês. No Brasil, sua circulação foi restrita, mas constituiu-se como uma das referências para as proposições do GEEM e para o intercâmbio dos professores com Lucienne Félix, ao longo dos anos 1960.
Field Epidemiological Study of the Risk Factors of Brucellosis Insidence in the Jalal-Abad Region of Kyrgyz Republic
Authors: Abdikarimov S. T. , Kydyshov K. , Usenbaev N. T. , Duishenalieva E. M.
Published: April 2019

Objective of this study was to determine the risk factors of brucellosis morbidity in the Jalal-Abad Region of Kyrgyzstan. Materials and methods. A case-control study was conducted in the process of field epidemiological survey of risk factors of brucellosis incidence that lasted for 6 month in the year 2018 in the Jalal-Abad Region. The study involved 180 respondents (90 cases and 90 controls). Cases of brucellosis were identified on the basis of epidemiological, clinical and laboratory criteria. Respondents were interviewed using the developed questionnaire to obtain information on the risk factors. To determine the exposure/ disease ratio, the odds ratio (OR) was calculated for each factor. Results and discussion. It was revealed that the intake of unpasteurized homemade cream (OR = 2.8; CI = 1.5–5.2; p = 0.0001), grilled meat (shish-kebabs) (OR = 5.1; CI = 2.5–10.4; p = 0.0001); cases of abortion or stillbirth among animals in households (OR = 11.3; CI = 4.2–30.6; p = 0.0001), stall cleaning (OR = 2.5; CI = 1.3–4.626; p = 0.0001), shearing of sheep (OR = 2.6; CI = 1.2–5.6; p = 0.01) and animal slaughter (OR = 2.9; CI = 1.2–6.5; p = 0.01) are statistically significant in relation to the risk of infection with brucellosis. To that end, the listed factors are the  key risk factors for brucellosis infection. The livestock keeping in private households (OR = 7.1; CI = 3.0–16.5; p = 0.0001) is also of great importance as a risk factor. For implementation of any preventive measures against brucellosis the value of the OR indicator (OR = 0.8, CI = 0.04–0.18; p = 0.0001) proves their reasonability.
Analysis of Crimean Hemorrhagic Fever Morbidity Rates in the Russian Federation in 2009– 2018 and Forecast for 2019
Authors: Volynkina A. S. , Pakskina N. D. , Kotenev E. S. , Maletskaya O. V. , Shaposhnikova L. I. , Kolosov A. V. , Vasilenko N. F. , Manin E. A. , Prislegina D. A. , Yatsmenko E. V. , Kulichenko A. N.
Published: April 2019

The review presents the analysis of epidemic and epizootic situation on Crimean hemorrhagic fever (CHF)in the Russian Federation in 2009–2018. Over the past decade, 980 CHF cases have been registered in Russia (2,8 %lethal). In 2009–2018, there was a significant expansion of the epidemiologically active area of the natural CHF focus.Epizootiological monitoring of the territory of natural CHF focus showed that in 2009–2018 the number of imago andpreimaginal phases of Hyalomma marginatum – the main vector of the CCHF virus in Russia, remained consistently high.The average long-term rate of Ixodidae ticks infestation by the CCHF virus in 2013–2017 was 3,3 %. In 2009–2018 in the south of the European part of Russia CCHF virus variants belonging to the genetic lines Europe-1 (V), Europe-3 (VII) and Africa-3 (III) were detected. There were no significant changes in the ratio of circulating genetic variants of the virus in the regions of the Russian Federation, which confirms the relative stability of the CCHF virus population. In 2018, CHF morbidity rate in the Russian Federation retained downward trend, however, in some regions of South Federal District the number of CHF cases increased. One of the reasons for CHF morbidity rate decrement in the Russian Federation in 2018 was the well-timed acaricidal treatments of cattle and natural biotopes in most of CHF endemic regions.
Epidemic Activity of Natural Tularemia Foci in the Territory of the Russian Federation in 2018 and Forecast of the Situation for 2019
Authors: Kudryavtseva T. Yu. , Popov V. P. , Mokrievich A. N. , Pakskina N. D. , Kholin A. V. , Mazepa A. V. , Kulikalova E. S. , Kosilko S. A. , Birkovskaya Yu. A. , Trankvilevsky D. V. , Khramov M. V. , Dyatlov I. A.
Published: April 2019

Objective of the study – assessment of epizootic and epidemic situation on tularemia in 2018 and forecasting the risk of infection in the territory of the Russian Federation in 2019. Analysis of epidemiological situation was carried out on the basis of the data from monitoring activities performed by the Rospotrebnadzor institutions and the data contained in the reports of the Irkutsk Research Anti-Plague Institute of Siberia and Far East, Plague Control Center, Federal Center of Hygiene and Epidemiology, as well as federal statistical survey forms No 5 “Information on preventive vaccination” and No 2 “Information on infectious and parasitic  diseases” over the period of January-December 2018 in eight Federal Districts including 85 constituent entities. Given are the retrospective data on tularemia epidemic situation in the territory of the Russian Federation over the past decade. 1944 human tularemia cases were registered in Russia between 2009 and 2018, 1005 out of which occurred during epidemic outbreak in 2013 in Khanty-Manssiysk Autonomous Region. High sporadic and small cluster incidence was mainly observed in the territories of the North-estern and Siberian Federal Districts over the recent years. In 2018, 71 cases of human infection with tularemia agent were reported. Epizootic manifestations of varying degree of intensity were detected in 52 entities of Russia. Against that background, sporadic cases of human infection were registered in 19 regions of the country. For three years epidemic complications expressed to the maximum were observed in the Omsk Region – 18 cases of tularemia infection, and Karelia – 14 cases, respectively. 15 Francisella tularensis cultures were isolated from ambient  environment objects in Pskov, Leningrad Regions, Altai Territory, Republics of Altai and Tuva. Conclusions have been drawn in relation to the regions where epidemic complications associated with tularemia are most likely to emerge in 2019.
Current State of the Problem of Vaccine Development for Specific Prophylaxis of Plague
Authors: Mikshis N. I. , Kutyrev V. V.
Published: April 2019

Emergence of large-scale plague outbreaks in Africa and South America countries in the modern period, characterized by high frequency of pneumonic plague development (including with lethal outcome) keeps up the interest of scientists to the matters of development and testing of means for specific prophylaxis of this particularly dangerous infectious disease. WHO workshop that was held in 2018 identified the general principles of optimization of design and testing of new-generation vaccines effectively protecting the population from plague infection. Application of the achievements of biological and medical sciences for outlining rational strategy for construction of immunobiological preparations led to a certain progress in the creation of not only sub-unit vaccines based on recombinant antigens, but also live and vector preparations on the platform of safe bacterial strains and replicating and non-replicating viruses in recent years. The review comprehensively considers the relevant trends in vaccine construction for plague  prevention, describes advantages of the state-of-the art methodologies for their safety and efficiency enhancement.
Improvement of the Scientifically-Substantiated Model of Sanitary-Epidemiological Welfare Provision During Mass Events by the Example of FIFA World Cup-2018 in Russia
Authors: Popova A. Yu. , Ezhlova E. V. , Demina Yu. V. , Pakskina N. D. , Skudareva O. N. , Karnaukhov I. G. , Toporkov V. P. , Udovichenko S. K. , Shiyanova A. E. , Kedrova O. V. , Kazakova E. S. , Shcherbakova S. A. , Kutyrev V. V.
Published: April 2019

In 2018, between June14 and July 15, final matches of the FIFA World Cup-2018 were held in 11 cities of the Russian Federation. That event was the biggest mass event with international participation in the history of Russia. During the period, in the process of sanitary-epidemiological welfare provision, developed earlier scintific-and-practical achievementds for prevention of emergency situations of sanitary-epidemiologoical character were implemented to the fullest extent. Objective of the study – analysis of evolution of the developed in Russia scientifically-substantiated approaches in the sphere of sanitary-epidemiological welfare provision of mass events and aggregation of the results of their implementation during preparation and holding of FIFA World-Cup-2018. Utilized were information-analytical materials from the Rospotrebnadzor Administrations by the constituent entities of the Russian Federatuion, Centers of Hygiene and Epidemiology in the entities of the Russian Federation, RusRAPI “Microbe” of the Rospotrebnadzor, data from Organizing Committee “Russia-2018”, Federal Turism Agency, information published in periodical press. Scientifically substantiated model of sanitary-epidemiological welfare provision during mass events was developed in the Russian Federation. It includes expert evaluation and quantification of potential epidemic hazard of mass event which allows for targeted prophylactic and anti-epidemic measures with rationalized loads and adequate frequency of repeat. The paper discusses the complex of measures carried out during preparation and holding of FIFA World Cup-2018 by the functional areas: sanitary protection of the territory; epidemiological surveillnace over relevant  anthropozoonotic, natural-focal zoonotic, sapronotic infectious diseaseas; sanitary surveillance over communal facilities, catering facilities, sites of accomodation of the participants and guests; sanitary-hygienic monitoring of ambient environment objects; provision of anti-epidemic preparadeness and readiness of the Rospotrebnadzor authorities and institutions and medical organizations; provision of readiness of laboratory facilities; involvement of additional forces and capacities and interagency cooperation in response to emergency situations of sanitary-epidemiological character.
Analysis of the Current Epidemiological Situation in Natural Plague Foci around the World. Enhancement of the Effectiveness of Epidemiological Surveillance in Natural Plague Foci of the Russian Federation and Forecast of their Epizootic Activity for 2019
Authors: Popov N. V. , Karnaukhov I. G. , Pakskina N. D. , Eroshenko G. A. , Kuznetsov A. A. , Matrosov A. N. , Porshakov A. M. , Kouklev E. V. , Ivanova A. V. , Korzun V. M. , Kosilko S. A. , Zenkevich E. S. , Popov V. P. , Lopatin A. A. , Ayazbaev T. Z. , Balakhonov S. V. , Kutyrev V. V.
Published: April 2019

The paper presents the analysis of epidemic activity of natural plague foci around the world, including in CIS and the Russian Federation, over the period of 2000–2018. It was established that in 2010–2018, epidemic manifestations took place in natural plague foci where the main carriers are synanthropic (black, multinippled rats) and commercial (marmots, souslik, ground squirrels) species of rodents. Retaining of low epizootic activity of lowland natural plague foci in the territory of the Russian Federation is observed. In 2018, plague epizooties were detected in the territory of the Gorno-Altai high-mountain and Tuva mountain natural foci, the total coverage area being 2641 km2. 13 strains of the main subspecies and 6 strains of Altaic subspecies of plague microbe were isolated. Demonstrated were the prospects of GIS-technology usage for the enhancement of epidemiological surveillance over plague in Russia. Epizootiological forecast for persisting challenging epidemiological situation in Kosh-Agach district of the Republic of Altai and Mongun-Taiginsky, Ovyursky and Tes-Khemsky Kozhuuns of the Republic of Tuva was substantiated. Recorded was high probability of retention of strained epizootic and epidemiological situation in the south and central parts of the desert zone in the Republic of Kazakhstan, high-mountain areas of the Republic of Kyrgyzstan. Also conservation of epidemic risks for the territories of the countries in Africa (Republic of Madagascar), South (Peru, Bolivia), and North (USA) America, China, and Mongolia was noted.
Epidemiological Situation on Anthrax in 2018, the Forecast for 2019
Authors: Ryazanova A. G. , Ezhlova E. B. , Pakskina N. D. , Semenova O. V. , Aksenova L. Yu. , Eremenko E. I. , Buravtseva N. P. , Golovinskaya T. M. , Varfolomeeva N. G. , Chmerenko D. K. , Pechkovsky G. A. , Kulichenko A. N.
Published: April 2019

Analysis of the anthrax incidence in the Russian Federation over the period of 2009–2018 showed that the infections among the population were recorded in 14 regions of 6 Federal Districts. 23 anthrax outbreaks among people were revealed, where 90 people got sick with 3 lethal outcomes. In comparison to the previous ten-year period (1999–2008), the number of cases of the disease was reduced by 1.6 times. Three cases of cutaneous anthrax were registered in two constituent entities of the Russian Federation in 2018 – the Republic of Dagestan (1) and the Republic of Tyva (2). Outbreaks of infection among livestock animals and people were recorded in such neighboring states as Georgia, Kazakhstan, China, Kyrgyzstan, and Ukraine. Epizootiological and epidemiological instability as regards anthrax was observed in several countries of Asia and Africa. Human infection occurred as a result of contact with sick and dead animals in the process of slaughter and cutting of carcasses, consuming infected meat. Anthrax morbidity rates among animals and people in the Russian Federation in 2019 will depend on the comprehensiveness of implementation of the plans for anthrax prevention, and in case those plans will be realized at the maximum scale incidence will be limited to single cases.
The Relationship Between Dural Ossification and Spinal Stenosis in Thoracic Ossification of the Ligamentum Flavum
Authors: Yu Lingjia , Li Bo , Yu Yifeng , Li Wenjing , Qiu Guixing , Zhao Yu
Published: April 2019

Background:

Dural ossification represents a difficult problem in the surgical management of thoracic ossification of the ligamentum flavum. Few studies have focused on this condition because of the relatively low prevalence. We speculated that dural ossification occurs only when spinal stenosis of patients with thoracic ossification of the ligamentum flavum progresses. Herein, we aimed to determine the relationship between dural ossification and spinal stenosis in thoracic ossification of the ligamentum flavum.

Methods:

In this study, 123 consecutive patients with ossification of the ligamentum flavum were retrospectively analyzed. Sixty-seven patients were ultimately included and were divided into a group that had dural ossification and a group that did not have dural ossification. Patient characteristics and radiographic data were recorded. The cross-sectional area occupying ratio ([1 – cross-sectional area of the narrowest level/normal cross-sectional area] × 100%) was measured and was calculated by 3 independent observers, followed by statistical analysis.

Results:

The 2 groups were comparable with respect to sex, age, body mass index, and distribution of the segment with maximum compression. The mean cross-sectional area occupying ratio (and standard deviation) in the T9-T12 subgroup in the group with dural ossification (63.4% ± 8.6%) was significantly higher (p < 0.001) than that in the group without dural ossification (30.7% ± 10.4%). The overall interobserver reliability for measurements of the cross-sectional area occupying ratio (interclass correlation coefficient, 0.976) was excellent. Thus, the cross-sectional area occupying ratio could be used as an indicator to distinguish between patients with ossification of the ligamentum flavum who did and did not have dural ossification, with a high diagnostic value, in the T9-T12 subgroup. A cross-sectional area occupying ratio of >55% (sensitivity of 81.5% and specificity of 100%), the “ossification zone,” was indicative of dural ossification in patients with ossification of the ligamentum flavum, whereas a value of <45% (sensitivity of 100% and specificity of 89.7%) was considered safe. Moreover, ratios between 45% and 55% were considered to be in the “gray zone.”

Conclusions:

The results of this study indicate that the severity of spinal stenosis was significantly associated with dural ossification in ossification of the ligamentum flavum and the cross-sectional area occupying ratio may be used as an indicator of dural ossification in the lower thoracic spine.

Clinical Relevance:

The diagnosis of dural ossification was based on the intraoperative evidence, and the results could help spine surgeons to prepare for the surgical procedure.
Femoral Bone Remodeling in Revision Total Hip Arthroplasty with Use of Modular Compared with Monoblock Tapered Fluted Titanium Stems
Authors: Huang Yong , Shao Hongyi , Zhou Yixin , Gu Jianming , Tang Hao , Yang Dejin
Published: April 2019

Background:

To our knowledge, no previous studies have compared periprosthetic bone remodeling around monoblock versus modular tapered fluted titanium stems with different stem length and thickness.

Methods:

A retrospective comparative study was performed on 139 consecutive total hip arthroplasties (THAs) revised with a tapered fluted modular titanium stem and 114 consecutive THAs revised with a tapered fluted monoblock titanium stem. The latest follow-up radiographs were compared with immediate postoperative radiographs to assess bone restoration in residual osteolytic areas, femoral stress-shielding, spot-welds, and radiolucent lines. Diameter and medullary canal filling of the 2 stems were measured.

Results:

More patients in the monoblock group demonstrated osseous restoration than in the modular group (p = 0.009), and the modular stem exerted more severe stress-shielding on the femur (p < 0.001). Stem tip spot-welds developed in 88.5% of modular stems compared with 47.4% of the monoblock stems (p < 0.001). Spot-welds developed in 38.8% of modular stems at the modular junction. Partial or circumferential radiolucent lines were observed at the proximal segment of 30.9% of modular stems, compared with 14.0% of monoblock stems (p = 0.002).

Conclusions:

Compared with the longer and thinner monoblock stems, modular stems had less proximal osseous restoration in residual osteolytic areas and more severe femoral stress-shielding, stem tip spot-welds, and radiolucent lines around the stems, which were stiffer and had a shorter distal section. The stem diameter and stiffness (which were influenced by stem length, curvature, and modularity) determined bone remodeling patterns.

Level of Evidence:

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Plasma Fibrinogen Exhibits Better Performance Than Plasma D-Dimer in the Diagnosis of Periprosthetic Joint Infection
Authors: Li Rui , Shao Hong-Yi , Hao Li-Bo , Yu Bao-Zhan , Qu Peng-Fei , Zhou Yi-Xin , Chen Ji-Ying
Published: April 2019

Background:

The search for potential markers for a timely and accurate diagnosis of periprosthetic joint infection (PJI) is ongoing. Previous studies have focused on inflammatory markers and have rarely examined coagulation-related indicators. The purpose of this study was to evaluate the values of plasma fibrinogen, D-dimer, and other blood markers for the diagnosis of PJI through a multicenter retrospective study.

Methods:

A total of 565 revision total hip and knee arthroplasty cases were enrolled in this study from January 2016 through December 2017, 126 of which had coagulation-related comorbidities and were analyzed separately. The remaining 439 cases included 76 PJI and 363 non-PJI patients. The definition of PJI was based on the International Consensus Meeting (ICM) on Periprosthetic Infection criteria. The diagnostic values of D-dimer, plasma fibrinogen, the erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, and white blood-cell (WBC) count were analyzed using receiver operating characteristic (ROC) curves.

Results:

ROC curves showed that plasma fibrinogen had the highest area under the curve (AUC), 0.852, followed by 2 classical markers, the CRP level and ESR, which had an AUC of 0.810 and 0.808, respectively. D-dimer had an AUC of 0.657, which was the second lowest value and only slightly higher than that of the WBC count, 0.590. The optimal threshold for plasma D-dimer was 1.25 μg/mL, with a sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of 0.645, 0.650, 0.278, and 0.897, respectively. The optimal threshold for plasma fibrinogen was 4.01 g/L, which showed good sensitivity, specificity, PPV, and NPV, with values of 0.763, 0.862, 0.537, and 0.946, respectively.

Conclusions:

Plasma D-dimer may have a very limited diagnostic value for PJI, while plasma fibrinogen, another coagulation-related indicator, exhibits promising performance. Plasma fibrinogen has good sensitivity and specificity for diagnosing PJI, with values similar to those of classical markers, including CRP level and ESR.

Level of Evidence:

Diagnostic Level III. See Instructions for Authors for a complete description of levels of evidence.
Postoperative Mobilization After Superior Rotator Cuff Repair: Sling Versus No Sling
Authors: Tirefort Jérôme , Schwitzguebel Adrien J. , Collin Philippe , Nowak Alexandra , Plomb-Holmes Chantal , Lädermann Alexandre
Published: April 2019

Background:

Patients are commonly advised to wear a sling for 4 to 6 weeks after rotator cuff repair despite negative effects of early immobilization and benefits of motion rehabilitation. The aim of this study was to compare clinical and radiographic outcomes up to 6 months following rotator cuff repair with and without postoperative sling immobilization.

Methods:

We randomized 80 patients scheduled for arthroscopic repair of a small or medium superior rotator cuff tear into sling and no-sling groups (40 patients each). Passive mobilization was performed in both groups during the first 4 postoperative weeks, and this was followed by progressive active mobilization. Patients were evaluated clinically at 10 days and 1.5, 3, and 6 months and using ultrasound at 6 months. Univariable and multivariable analyses were performed to determine if postoperative scores were associated with sex, age at surgery, immobilization, arm dominance, a biceps procedure, resection of the distal part of the clavicle, or preoperative scores.

Results:

The sling and no-sling groups had similar preoperative patient characteristics, function, and adjuvant procedures. At 10 days, there was no difference in pain between the 2 groups (mean pain score [and standard deviation], 5.2 ± 2.3 versus 5.2 ± 1.9, p = 0.996). In comparison with the sling group, the no-sling group showed greater mean external rotation (23.5° ± 15.6° versus 15.3° ± 14.6°, p = 0.017) and active elevation (110.9° ± 31.9° versus 97.0° ± 25.0°, p = 0.038) at 1.5 months as well as better mean active elevation (139.0° ± 24.7° versus 125.8° ± 24.4°, p = 0.015) and internal rotation (T12 or above in 50% versus 28%, p = 0.011) at 3 months. Ultrasound evaluation revealed no significant differences at 6 months in tendon thickness anteriorly (p = 0.472) or posteriorly (p = 0.639), bursitis (p = 1.000), echogenicity (p = 0.422), or repair integrity (p = 0.902). Multivariable analyses confirmed that the mean American Shoulder and Elbow Surgeons (ASES) score increased with patient age (beta, 0.60; p = 0.009), the Single Assessment Numeric Evaluation (SANE) decreased with sling immobilization (beta, −6.33; p = 0.014), and pain increased with sling immobilization (beta, 0.77; p = 0.022).

Conclusions:

No immobilization after rotator cuff repair is associated with better early mobility and functional scores in comparison with sling immobilization. Postoperative immobilization with a sling may therefore not be required for patients treated for a small or medium tendon tear.

Level of Evidence:

Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
A Novel Risk Calculator Predicts 90-Day Readmission Following Total Joint Arthroplasty
Authors: Goltz Daniel E. , Ryan Sean P. , Hopkins Thomas J. , Howell Claire B. , Attarian David E. , Bolognesi Michael P. , Seyler Thorsten M.
Published: April 2019

Background:

A reliable prediction tool for 90-day adverse events not only would provide patients with valuable estimates of their individual risk perioperatively, but would also give health-care systems a method to enable them to anticipate and potentially mitigate postoperative complications. Predictive accuracy, however, has been challenging to achieve. We hypothesized that a broad range of patient and procedure characteristics could adequately predict 90-day readmission after total joint arthroplasty (TJA).

Methods:

The electronic medical records on 10,155 primary unilateral total hip (4,585, 45%) and knee (5,570, 55%) arthroplasties performed at a single institution from June 2013 to January 2018 were retrospectively reviewed. In addition to 90-day readmission status, >50 candidate predictor variables were extracted from these records with use of structured query language (SQL). These variables included a wide variety of preoperative demographic/social factors, intraoperative metrics, postoperative laboratory results, and the 30 standardized Elixhauser comorbidity variables. The patient cohort was randomly divided into derivation (80%) and validation (20%) cohorts, and backward stepwise elimination identified important factors for subsequent inclusion in a multivariable logistic regression model.

Results:

Overall, subsequent 90-day readmission was recorded for 503 cases (5.0%), and parameter selection identified 17 variables for inclusion in a multivariable logistic regression model on the basis of their predictive ability. These included 5 preoperative parameters (American Society of Anesthesiologists [ASA] score, age, operatively treated joint, insurance type, and smoking status), duration of surgery, 2 postoperative laboratory results (hemoglobin and blood-urea-nitrogen [BUN] level), and 9 Elixhauser comorbidities. The regression model demonstrated adequate predictive discrimination for 90-day readmission after TJA (area under the curve [AUC]: 0.7047) and was incorporated into static and dynamic nomograms for interactive visualization of patient risk in a clinical or administrative setting.

Conclusions:

A novel risk calculator incorporating a broad range of patient factors adequately predicts the likelihood of 90-day readmission following TJA. Identifying at-risk patients will allow providers to anticipate adverse outcomes and modulate postoperative care accordingly prior to discharge.

Level of Evidence:

Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Hype or Real Threat: The Extent of Predatory Journals in Student Bibliographies
Authors: Schira H. Rainer , Hurst Chris
Published: April 2019

Predatory publishing has risen with the development of open access publishing. This study examines how many potential predatory journals were used by Brandon University students by analyzing their bibliographies. In total, 245 bibliographies including 2,359 citations were analyzed. Of the 1,485 citations to journals in these citations, five were found to cite journals on Beall’s List of Predatory Journals and Publishers. The probable sources of these journals in the students’ bibliographies were examined.
Diversi Terhadap Recidive Anak
Authors: Dwijayanti Mita
Published: April 2019

AbstractSince the date of July 30, 2014 the Law No. 11 of 2012. One of the things that set new Law No. 11 of 2012 is Diversio. In the implementation, although Diversion is intended to protect children from stigmatization and pressure of the judicial process, but has not been fully implemented because of the Law No. 11 of 2012 are the terms and conditions of the diversion that one of them is the child who did the crime of repetition is not allowed to finish through the process of Diversion. Child in conflict with the law that could damage the system community, especially people of Indonesia and due to the mischief, a child has to deal with the law and go to prison children. Therefore, implementation of the concept of diversion is done with the intention to avoid children from the negative implications of the criminal justice system that is, avoiding the child will enter the criminal justice system and eliminate child labeled criminals against children who have already become victims
Main Hakim Sendiri (Eigen Richting) dalam Terjadinya Pencurian Sapi di Madura
Authors: Wartiningsih Wartiningsih
Published: April 2019

Maraknya tindakan main hakim di beberapa daerah mencerminkan ketidakpercayaan masyarakat terhadap kinerja kepolisian dan sistem peradilan pidana di Indonenesia. Demikian juga di Madura masyarakat menghakimi pencuri yang mencoba atau mencuri sapi. Nampaknya telah terjadi perubahan paradigma dalam masyarakat, yang dahulu menjunjung nilai-nilai kemanusiaan. Respon masyarakat di luar pelaku main hakim sendiri menujukkan kepuasannya jika pelaku pencurian dihakimi massa.            Penelitian ini akan menganalisis tindakan main hakim sendiri  dari 2 aspek yaitu, aspek masyarakat akan dianalisis dengan teori  sistem hukum dari Lawrence M. Friedman. Sedangkan dari kepolisian akan dianalisis dari aspek kelembagaan berdasarkan teori Chambliss and Saidman.Jenis penelitian ini adalah penelitian yuridis sosiologis dengan pendekatan fakta. Data dan informasi yang diperoleh dianalisis secara kualitatif untuk menemukan fakta (fact-finding), yang kemudian menuju pada identifikasi (problem-identification) dan pada akhirnya menuju kepada penyelesaian masalah (problem-solution). Berdasarkan hasil dan pembahasan, rekomendasi yang diberikan oleh peneliti adalah perlu penyuluhan dan penyadaran dari masyarakat bahwa tindakan main hakim sendiri adalah perbuatan yang melawan hukum. Untuk kepolisian perlu ada konsolidari dan komitmen yang tinggi untuk bisa melakukan penegakan hukum karena non-enfocerment atau pembiaran tidak dapat dibenarkan dari aspek teori  maupun  aspek praktik yang melanggar hak tersangka dan merupakan hambatan bagi tersangka dalam upaya memperoleh keadilan.
Bentuk Kegiatan Diversi Anak Dalam Undang-Undang Nomor 11 Tahun 2012 tentang Sistem Peradilan Pidana Anak.
Authors: Aprilianda Nurini
Published: April 2019

Tulisan  ini bertujuan untuk menggali, menganalisis dan menemukan urgensi dan pola bentuk kegiatan diversi anak pada tingkat pennyidikan yang mencerminkan politik hukum UU SPPA. Tulisan ini dibuat berdasarkan penelitian hukum normatif dengan pendekatan peraturan perundang-undangan (statute approach) dan pendekatan perbadingan (comparative approach). Hasil penelitian menunjukkan bahwa bentuk pelaksanaan diversi di Indonesia dapat dipertimbangkan melalui pengembangan pendidikan dan pelatihan bagi anak misalnya   fasilitas bagi anak untuk 4 (empat) jenis aktifitas  yaitu olahraga, rekreasi, assistance programs dan kesenian. Di Indonesia, kegiatan tersebut dapat dilakukan dengan menjalin kerjasama dengan dinas sosial dan LSM. Selanjutnya kegiatan yang diberikan pada anak disesuakan dengan karakteristik daerah dan menyesuaikan bakat dan minat anak.
DASAR PEMBAGIAN KEWENANGAN NOTARIS DAN PEJABAT PEMBUAT AKTA TANAH (PPAT) DALAM BIDANG PERTANAHAN
Authors: Darma Putra I Wayan Eka
Published: April 2019

This study aims to analyze the basis for authority division of notary and Official Certifer of Title Deed in land sector and to examine whether Article 15 Paragraph 2 letter (f) of Law Number 2 year 2014 concerning notary is contrary to Article 2 of Government Regulation Number 37 year 1998 on the rule of position for Official Certifer of Title Deed. This research is legal research normative by design with statute and historical approaches employed. The legal materials obtained were analized and assessed to reveal the correlation between them. The findings of the study show that the authority of the notary comes from Notary Regulation (Stb. 1860 : 3) and the authority of the Official Certifer of Title Deed is generated from Government Regulation number 37 year 1998 on the rule of position for Official Certifer of Title Deed. Article 15 paragraph (2) letter (f) about notary position does not contradict Article 2 of Government Regulation number 37 year 1998 because the land deed such as lease deed, sale and purchase agreement, deed of land right release, the authority to sell, statement of inheritance, will, and deed of grant of mortgage is the authority of the notary and not the Official Certifer of Title Deed.
PELATIHAN KERJA SEBAGAI SANKSI PIDANA TERHADAP ANAK YANG BERKONFLIK DENGAN HUKUM
Authors: Indrawati Eka Rose
Published: April 2019

Bahwa bentuk tindak pidana yang dapat dikenakan pidana pelatihan kerja sebagai sanksi pidana terhadap anak yang berkonflik dengan hukum yaitu balapan dijalanan, perilaku ugal-ugalan, berandal, urakan yang mengacaukan ketentraman hingga perkelahian antar geng yang kadang membawa korban jiwa. Sedangkan bentuk pelatihan kerja sebagai sanksi pidana terhadap anak yang berkonflik dengan hukum dapat berupa pembinaan umum maupun pelatihan keterampilan meliputi kursus perbengkelan dan pembinaan generasi muda lainnya.
PEMERIKSAAN SAKSI PERKARA PIDANA YANG DISIARKAN LANGSUNG OLEH MEDIA ELEKTRONIK
Authors: Darmawan Budi
Published: April 2019

Bahwa indonesia belum mempunyai aturan yang secara tegas melarang adanya pengambilan gambar atau siaran lagsung di persidangan. Asas pengadilan terbuka untuk umum ditafsirkan sebagai kebolehan dilakukannya siaran langsung secara maraton. KUHAP tidak mengatur secara tegas.
IMPLEMENTASI KONSEP RESTORATIVE JUSTICE TERHADAP ANAK YANG BERHADAPAN DENGAN HUKUM DI WILAYAH BANGKALAN BERDASARKAN UNDANG-UNDANG NOMOR 11 TAHUN 2012 TENTANG SISTEM PERADILAN PIDANA ANAK
Authors: Anggraini Atika
Published: April 2019

ABSTRAKPenelitian ini bertujuan menganalisis Implementasi Konsep Restorative JusticeTerhadap Anak Yang Berhadapan Dengan Hukum Di Wilayah Bangkalan Berdasarkan Undang-Undang No. 11 Tahun 2012 Tentang Sistem Peradilan Pidana Anak. Tulisan ini di buat berdasarkan penelitian menggunakan pendekatan utama yaitu yuridis normative (legal Research) dan yuridis Empiris sebagai penunjang pendekatan Normatif. Hasil penelitian ini bahwa konsep Restorative Justice dibangkalan telah efektif dilaksanakan oleh para penegak hukum meskipun banyak kekurangan tetapi tidak mengurangi pelaksanaan demi kepentingan Anak berhadapan hukum. Pendampingan Kasus ABH wajib didampingi oleh Keluarga, Pengacara, Bapas, LSM dan tokoh masyarakat. Pendamping terhadap ABH tidak hanya kasus yang dapat dilaksanakan Restorative Justice tetapi semua kasus yang melibatkan anak sebagai anak pelaku. Pendampingan ABH dimulai sejak tahap penyidikan hingga telah selesainya pidana yang harus ABH pertanggung jawabkan dan dikembalikannya ABH kepada masyrakat untuk bersosialisasi. Oleh karena itu, diharapkan putusan para penegak hukum yang menyangkut masa depan ABH lebih untuk diperhatikan masa depannya agar menjadi pribadi yang lebih baik. Kata Kunci: Anak Berhadapan Hukum, Restorative Justice, Pendampingan  ABSTRACT This reseach aims to analyze the Implementation of Restorative Justice Concept on Children Against the Law in Bangkalan Territory Based on Act No. 11 Year 2012 on the Criminal Justice System of Children. This paper is based on research using the main approach of normative juridical (Legal Research) and juridical Empirical as supporting Normative approach. The result of research is the concept of Restorative Justice has been effectively implemented by law enforcers despite many shortcomings but does not reduce the implementation in the interest of the Child in the against of law. Assistance of ABH Cases must be accompanied by Family, Lawyers, BAPAS (Balai Permasyarakatan), NGOs and community leaders. Companions to ABH are not the only cases that Restorative Justice can implement but all cases involving children as child offenders. ABH mentoring started from the investigation stage until the completion of the crime that should be ABH accountable and returned ABH to the community to socialize. Therefore, it is hoped that the decision of law enforcers concerning the future of ABH is more to be considered for the future to become a better person. Keywords :Children Against the Law, Restorative Justice, Assistance
WANPRESTASI DALAM AKAD PEMBIAYAAN IJARAH MULTIJASA (ANALISIS PUTUSAN PENGADILAN AGAMA PURBALINGGA No. 1721/Pdt.G/2013/PA.Pbg)
Authors: Lazwardi Mulya
Published: April 2019

Artikel ini merupakan penelitian hukum yang menggunakan pendekatan perundang-undangan, pendekatan konsep dan pendekatan kasus. Hasil penelitian menunjukkan bahwa karakteristik pembiayaan ijarah multi jasa adalah mengambil manfaat dengan jalan pengganti. Dikaitkan dengan sistem perbankan syariah sebagai bagian dari konsep ekonomi Islam, maka tidak hanya dituntut untuk menghasilkan keuntungan melalui setiap transaksi komersial saja. Akan tetapi, juga dituntut untuk mengimplementasikan nilai-nilai syariah yang sesuai dengan Al - Qur`an dan Hadist. Kriteria wanprestasi pada pembiayaan ijarah multi jasa dan upaya penyelesaiannya adalah masing-masing pihak harus memenuhi kewajiban yang timbul dari akad. Apabila salah satu tidak memenuhi kewajiban dalam akad, penyelesaian wanprestasi dalam perbankan syariah dengan mediasi atau melalui BASYARNAS.
Gasto de bolsillo en salud durante el último año de vida de adultos mayores mexicanos: análisis del Enasem
Authors: Salinas-Escudero Guillermo , Carrillo-Vega María Fernanda , Pérez-Zepeda Mario Ulises , García-Peña Carmen
Published: April 2019

Objetivo. Estimar el gasto de bolsillo (GB) durante el último año de vida en adultos mayores (AM) mexicanos. Material y métodos. Estimación del GB del último año de vida de AM, ajustando por tipo de manejo, afiliación y causa de muerte. Se emplearon datos del Estudio Nacional de Salud y Envejecimiento en México (2012). Los gastos en medicamentos, consultas médicas y hospitalización durante el año previo a la muerte conforman el GB. El GB se ajustó por inflación y se reporta en dólares americanos 2018. Re­sultados. La media de GB fue $6 255.3±18 500. En el grupo de atención ambulatoria el GB fue $4 134.9±13 631.3. El GB en hospitalización fue $7 050.6±19 971.0. Conclusiones. La probabilidad de incurrir en GB es menor cuando no se requiere hospitalización. Con hospitalización, la afiliación a la seguridad social y atenderse en hospitales públicos juega un papel protector.
Sour Gas Production: Moving from Conventional to Advanced Environmentally Friendly Schemes
Authors: Lallemand F. , Rocher A. , Aimard N.
Published: April 2019

For decades to come, gas will be the energy source of choice to meet increasing demand. Oil and gas operators, who have already developed those fields the easiest and the cheapest to produce, will have to develop fields with much higher acid gas content in the future, as forty per cent of the remaining (natural or associated) gas reserves are sour, totaling over 350 Tcf with over 10% H2S, and almost 700 Tcf with over 10% CO2, with both these components present most of the time.

Future sour gas sustainable developments will have to deal with three major challenges: additional costs associated to the production and separation of large quantities of acid gases, more ambitious objectives to reduce green house gases emissions, and global and durable saturation of the sulfur market. This leads to the development of more energy efficient technologies for acid gas separation and more generally to new gas production schemes.

Acid gas cycling for Enhanced Oil Recovery or acid gas disposal by reinjection offers a promising alternative to avoid costly sulfur production and reduce CO2 emissions to the atmosphere when producing these large very sour gas reserves. However, acid gas injection requires the qualification of a suitable and well known geological formation and there are some drawbacks and constraints related to the surface facilities that will be discussed in the paper.

The paper also presents the necessary evolutions of the production / treatment technologies, and the new solutions under development or already developed and proven by Total and its partners, to cope with these new environment and constraints. They include environmentally friendly methods to store sulfur, as well as energy efficient processes to separate acid gases from sour gas, such as the cryogenic separation process well adapted to acid gas injection schemes, and new solvent processes for enhanced sweetening performances.
Surfactant Prefloods During Carbon Dioxide Foam Injection for Integrated Enhanced Oil Recovery in Fractured Oil-Wet Carbonates
Authors: Fredriksen S. B. , Alcorn Z. P. , Frøland A.. , Viken A.. , Rognmo A. U. , Seland J. G. , Ersland G.. , Fernø M. A. , Graue A..
Published: April 2019

An integrated enhanced-oil-recovery (EOR) (IEOR) approach is used in fractured oil-wet carbonate core plugs where surfactant prefloods reduce interfacial tension (IFT), alter wettability, and establish conditions for capillary continuity to improve tertiary carbon dioxide (CO2) foam injections. Surfactant prefloods can alter the wettability of oil-wet fractures toward neutral/weakly-water-wet conditions that in turn reduce the capillary threshold pressure for foam generation in matrix and create capillary contact between matrix blocks. The capillary connectivity can transmit differential pressure across fractures and increase both mobility control and viscous displacement during CO2-foam injections. Outcrop core plugs were aged to reflect conditions of an ongoing CO2-foam injection field pilot in west Texas. Surfactants were screened for their ability to change the wetting state from oil-wet using the Darcy-scale Amott-Harvey index. A cationic surfactant was the most effective in shifting wettability from an Amott-Harvey index of –0.56 to 0.09. Second waterfloods after surfactant treatments and before tertiary CO2-foam injections recovered an additional 4 to 11% of original oil in place (OIP) (OOIP), verifying the favorable effects of a surfactant preflood to mobilize oil. Tertiary CO2-foam injections revealed the significance of a critical oil-saturation value below which CO2 and surfactant solution were able to enter the oil-wet matrix and generate foam for EOR. The results reveal that a surfactant preflood can reverse the wettability of oil-wet fracture surfaces, lower IFT, and lower capillary threshold pressure to reduce oil saturation to less than a critical value to generate stable CO2 foam.
Field Validation of a New Bottomhole-Assembly Model for Unconventional Shale Plays
Authors: Wilson J. K.
Published: April 2019

A new drillstring model has been developed that determines the static and dynamic behavior of bottomhole assemblies (BHAs) in 3D wellbores. An attempt at validating this model with field data is presented, and it shows a close agreement between observed and calculated downhole BHA behavior.

Validation tests were conducted using high-frequency downhole data measured within a motor-assisted rotary-steerable BHA. The gathered data were used to verify the calculated mechanical loads, predicted lateral natural frequencies of the BHA, estimated directional performance of the downhole assembly, and the torsional resonance resulting from high-frequency torsional oscillations (HFTOs).

Results from the field tests show a strong correlation between measured and calculated bending-moment values, as well as lateral natural frequencies of the BHA, with an average of 3% error across all data sets. The primary source of error is thought to be borehole spiraling, which is quantified through analysis of the downhole bending-moment data. In addition, the model is shown to provide close estimates of the actual directional performance of both steerable mud motors and rotary-steerable BHAs. However, the directional-calculation vs. -measurement comparison does reveal a need to incorporate a rate-of-penetration (ROP) dependency within the directional-prediction algorithms.
Produced-Fluid Composition Redistribution in Source Rocks for Hydrocarbon-In-Place and Thermodynamic Recovery Calculations
Authors: Baek Seunghwan , Yucel Akkutlu I..
Published: April 2019

Source rocks, such as organic-rich shale, consist of a multiscale pore structure that includes pores with sizes down to the nanoscale, contributing to the storage of hydrocarbons. In this study, we observed hydrocarbons in the source rock partition into fluids with significantly varying physical properties across the nanopore-size distribution of the organic matter. This partitioning is a consequence of the multicomponent hydrocarbon mixture stored in the nanopores, exhibiting a significant compositional variation by pore size—the smaller the pore size, the heavier and more viscous the hydrocarbon mixture becomes. The concept of composition redistribution of the produced fluids uses an equilibrium molecular simulation that considers organic matter to be a graphite membrane in contact with a microcrack that holds bulk-phase produced fluid.

A new equation of state (EOS) was proposed to predict the density of the redistributed fluid mixtures in nanopores under the initial reservoir conditions. A new volumetric method was presented to ensure the density variability across the measured pore-size distribution to improve the accuracy of predicting hydrocarbons in place. The approach allowed us to account for the bulk hydrocarbon fluids and the fluids under confinement.

Multicomponent fluids with redistributed compositions are capillary condensed in nanopores at the lower end of the pore-size distribution of the matrix (<10 nm). The nanoconfinement effects are responsible for the condensation. During production and pressure depletion, the remaining hydrocarbons become progressively heavier. Hence, hydrocarbon vaporization and desorption develop at extremely low pressures. Consequently, hydrocarbon recovery from these small pores is characteristically low.