bluuebunny/crossref_metadata_2025_split huggingface dataset:
Physics, applications, and limitations of borehole neutron-gamma density measurements
Authors: Luycx Mathilde , Torres-Verdín Carlos 
Published: October 2018

Radioactive chemical sources can pose security, health, and environmental risks when used to estimate rock porosity in situ. The oil industry has been developing solutions to eliminate radioactive chemical sources in borehole nuclear logging. Pulsed neutron generators have successfully replaced chemical sources in neutron tools, but cesium-137 is still mainly used for borehole density measurements. Neutron-activated gamma-ray measurements (neutron-gamma) are a possible alternative to radioactive chemical sources in density tools. Despite recent advances, the measurement faces challenges regarding density accuracy across diverse solid and fluid rock compositions and nonnegligible sensitivity to borehole environmental effects. We have examined a theoretical, albeit realistic, logging-while-drilling neutron-gamma density (NGD) tool operating with two inelastic gamma-ray detectors and two fast neutron detectors. With a strong emphasis on measurement physics and source-sensor design, the tool delivers density accuracies comparable to those of gamma-gamma density (GGD) tools with [Formula: see text] error in shale-free formations and [Formula: see text] in shale and shaly formations. Our work also compares NGD with GGD in terms of depth of investigation (DOI), vertical resolution, and sensitivity to borehole environmental effects to determine optimal logging conditions. NGD accuracy is limited in the presence of standoff. With inputs of caliper and mud type, empirical density corrections can be applied up to 0.64 cm (0.25 in) standoff. NGD also has limited applicability in thinly bedded formations with maximum vertical resolution of 76 cm (2.5 ft). However, the measurement outperforms GGD in the presence of invasion because its DOI is twice as large.
Depositional model and controlling factors of oolithic shoal: A case study of the Lower Triassic Feixianguan Formation in the northwestern Sichuan Basin, China
Authors: Huang Yuan , Fan Zhenyu , He Bing , Tang Song , Du Weifeng 
Published: October 2018

Lower Triassic Feixianguan oolithic shoal complexes are widely developed in the northwestern Sichuan Basin, southwest China, where they host large natural gas reserves. To understand their development and the factors that controlled their deposition, we have used observations and interpretations of outcrops, cores, thin sections, well-log data, and seismic data to characterize the geologic and geophysical properties of the oolithic shoals of the Lower Triassic Feixianguan Formation in the Jiange area, northwestern Sichuan Basin. The oolithic shoals of the Feixianguan Formation are composed of locally dolomitized oolithic grainstones or packstones deposited in a semirestricted platform environment. With a thickness of more than 50 m, oolithic shoals mainly occur in the Fei 2 Member within the southeastern Jiange area. The results indicate that the shoals mainly lie above tectonic uplifts (caused by the northwest-trending basement-involved faults) and surrounding microtopographic highs. Furthermore, the prograding clinoforms and changes in accommodation space caused by sea-level fall influence the thickness of oolithic shoal deposits, and constrain their development in highstand systems tracts, resulting in their migration coinciding with the trend of clinoform progradation. We concluded that the development of oolithic shoals in the Jiange area may be controlled by two major factors: (1) the influence of paleotopography governed by the syndepositional faults on the accumulation of oolithic shoals and (2) the role of sea-level change in the migration of oolithic shoals.
Suboptimal Use of Effective Contraceptive Methods in Young Mexican Women With Breast Cancer
Authors: Castro-Sanchez Andrea , Martinez-Cannon Bertha Alejandra , Platas Alejandra , Mohar Alejandro , Fonseca Alan , Vega Yoatzin , Fimbres-Morales Adrian , Villarreal-Garza Cynthia 
Published: October 2018

Purpose Contraceptive counseling and adherence in young women with breast cancer (BC) is a relevant issue because chemotherapy and hormonal treatment resulting in amenorrhea do not preclude unintended pregnancies. Currently, there is limited evidence from high-income countries; however, there are no studies regarding use of contraceptives in patients with BC in Mexico. This study aimed to determine the rate of contraceptive use in young Mexican women with BC during cancer treatment, characterize their contraceptive preferences, and assess contraceptive counseling by Mexican physicians. Patients and Methods A cross-sectional survey was conducted regarding contraceptive use and counseling among women age 40 years or younger at BC diagnosis who had completed chemotherapy in the previous 5 years or who were currently receiving long-term treatment with hormonal therapy and/or trastuzumab at a large tertiary health care facility in Mexico. Results Of a total of 104 eligible women with median age at diagnosis of 34 years, 51.1% reported using a contraceptive during chemotherapy and 45.7% reported using a contraceptive during other types of cancer treatment (hormonal therapy and trastuzumab). Of the 51 patients (49%) who were sexually active during chemotherapy, 76.5% used contraception, but only 29.4% used an effective contraceptive method. When asked about contraceptive counseling, only 16.7% recalled being advised by their health care provider. Sexually active women who received contraceptive counseling used contraceptives more often than women who were not counseled (83.3% v 22.2%). Conclusion A minority of young women with BC in Mexico use effective contraception methods during cancer treatment and receive contraceptive counseling. Informing all premenopausal patients with BC about effective use of contraception methods during treatment should be an essential aspect of the supportive care of young women.
Implementing a Pediatric Perioperative Surgical Home Integrated Care Coordination Pathway for Laryngeal Cleft Repair
Authors: Leahy Izabela , Johnson Connor , Staffa Steven J. , Rahbar Reza , Ferrari Lynne R. 
Published: October 2018

BACKGROUND:
The Pediatric Perioperative Surgical Home (PPSH) model is an integrative care model designed to provide better patient care and value by shifting focus from the patient encounter level to the overarching surgical episode of care. So far, no PPSH model has targeted a complex airway disorder. It was hypothesized that the development of a PPSH for laryngeal cleft repair would reduce the high rates of postoperative resource utilization observed in this population.

METHODS:
Institutional review board approval was obtained for the purpose of data collection and analysis. A multidisciplinary team of anesthesiologists, surgeons, nursing staff, information technology specialists, and finance administrators was gathered during the PPSH development phase. Standardized perioperative (preoperative, intraoperative, and postoperative) protocols were developed, with a focus on preoperative risk stratification. Patients presenting before surgery with ≥1 predefined medical comorbidity were triaged to the intensive care unit (ICU) postoperatively, while patients without severe systemic disease were triaged to a lower-acuity floor for overnight observation. The success of the PPSH protocol was defined by quality outcome and value measurements.

RESULTS:
The PPSH initiative included 120 patients, and the pre-PPSH period included 115 patients who underwent laryngeal cleft repair before implementation of the new process. Patients in the pre-PPSH period were reviewed and classified as ICU candidates or lower acuity floor candidates had they presented in the post-PPSH period. Among the 79 patients in the pre-PPSH period who were identified as candidates for the lower-acuity floor transfer, 70 patients (89%) were transferred to the ICU (P < .001). Retrospective analysis concluded that 143 ICU bedded days could have been avoided in the pre-PPSH group by using PPSH risk stratification. Surgery duration (P = .034) and hospital length of stay (P = .015) were found to be slightly longer in the group of pre-PPSH observation unit candidates. Rates of 30-day unplanned readmissions to the hospital were not associated with the new PPSH initiative (P = .093). No patients in either group experienced emergent postoperative intubation or other expected complications. Total hospital costs were not lower for PPSH observation unit patients as compared to pre-PPSH observation unit candidates (difference = 8%; 95% confidence interval, −7% to 23%).

CONCLUSIONS:
A well-defined preoperative screening protocol for patients undergoing laryngeal cleft repair can reduce postoperative ICU utilization without affecting patient safety. Further research is needed to see if these findings are applicable to other complex airway surgeries.
Crisis Management and the LatinX Child
Authors: Milian Claudia 
Published: October 2018

AbstractThis article takes into consideration Valeria Luiselli’s Tell Me How It Ends: An Essay in Forty Questions, a nonfictional work about unaccompanied Central American minors coming to the United States and the immigration questionnaire they must navigate to determine their US admissibility. The essay explores how the Northern Triangle’s minor—the outré LatinX child—is made into the word on bureaucratic paper. It probes a genealogy of temporary American beginnings and delves into the expulsed Central American child as a newcomer, a migrant, and the beginning of something else: a LatinX phenomenon of—and in—crisis.
Literature and Science: The State of the Field in Korean Studies
Authors: Hwang Jongyon 
Published: October 2018

Abstract
The relationship between Western science and Korean literature is one of the topics that has drawn much attention from scholars in the field of Korean studies for the last decade. The focus on disciplinary knowledge of science as a source for literary innovation has yielded new insights into the formation and development of modern Korean literature. However, the task remains to locate multifaceted connections between literature and science by distinguishing connecting links such as concept, rhetoric, genre, and culture and to historicize the compromises and oppositions between them as different responses to the changing conditions of modern life.
The Neurocognitive Criminology of Avenging Memories: Dissociative Violence in Young-ha Kim’s The Mnemonics of a Murderer
Authors: Shin Haerin 
Published: October 2018

Abstract
Young-ha Kim’s 2013 crime thriller The Mnemonics of a Murderer is a tale of neurocognitive apocalypse, wherein selfhood built upon dissociative violence turns on its own self. In the novel, a retired psychopathic serial killer suffering from Alzheimer’s disease awakens back to action upon detecting his own kind on his trail, only to discover that all was merely an elaborate construct of his deteriorating mind. The outcome is no less deadly, however, for the revelation condemns him to exposure at the hands of his own prized faculties—his memories and deeds as a murderer. Expanding on the first-person narrator’s imploding microcosm, I claim that Mnemonics demonstrates the reflexive mechanism of dissociative violence by superimposing the two-pronged neuropathology of psychopathy and dementia upon the macrocosmic climate of anomy and degeneracy in postmillennial South Korea. The recent plague of spree killings attests to a deep-seated discontent with the growing chasm of socioeconomic inequalities that betray the rosy prospects of abundance and security from the 1990s. Showing how the legacies of compressed modernity have become a reflexive mechanism of self-destruction, Mnemonics offers a chilling psychosomatic allegory of dissociative social violence in its portrayal of a system avenged by its own depravity.
Sucrose but Not Nitrate Ingestion Reduces Strenuous Cycling–induced Intestinal Injury
Authors: JONVIK KRISTIN L. , LENAERTS KAATJE , SMEETS JOEY S. J. , KOLKMAN JEROEN J. , VAN LOON LUC J. C. , VERDIJK LEX B. 
Published: October 2018

ABSTRACTPurposeStrenuous exercise induces intestinal injury, which is likely related to splanchnic hypoperfusion and may be associated with gastrointestinal complaints commonly reported during certain exercise modalities. Increasing circulating nitric oxide (NO) levels or inducing postprandial hyperemia may improve splanchnic perfusion, thereby attenuating intestinal injury during exercise. Therefore, we investigated the effects of both dietary nitrate ingestion and sucrose ingestion on splanchnic perfusion and intestinal injury induced by prolonged strenuous cycling.MethodsIn a randomized crossover manner, 16 well-trained male athletes (age, 28 ± 7 yr;Wmax, 5.0 ± 0.3 W·kg−1) cycled 60 min at 70%Wmaxafter acute ingestion of sodium nitrate (NIT; 800 mg NO3), sucrose (SUC; 40 g), or a water placebo (PLA). Splanchnic perfusion was assessed by determining the gap between gastric and arterial pCO2(gapg-apCO2) using gastric air tonometry. Plasma intestinal fatty acid–binding protein (I-FABP) concentrations, reflecting enterocyte damage, were assessed every 20 min during and up to 60 min of postexercise recovery.ResultsThe exercise protocol resulted in splanchnic hypoperfusion, as gapg-apCO2levels increased during exercise (P< 0.001), with no differences between treatments (P= 0.47). Although plasma I-FABP concentrations increased during exercise and postexercise recovery for all treatments (P< 0.0001), the increase was different between treatments (P< 0.0001).Post hoccomparisons showed an attenuated increase in I-FABP in SUC versus PLA (P= 0.020). In accordance, I-FABP area under the curve (AUC0–120) was significantly lower in SUC versus PLA (57,270 ± 77,425 vs 114,907 ± 91,527 pg·mL−1per 120 min,P= 0.002). No differences were observed between NIT and PLA (P= 0.99).ConclusionSucrose but not nitrate ingestion lowers intestinal injury evoked during prolonged strenuous cycling. These results suggest that sucrose ingestion, but not nitrate, prevents hypoperfusion-induced gastrointestinal damage during exercise and, as such, may help to lower exercise-related gastrointestinal complaints.
Αξιοποίηση του συστήματος διαχείρισης μάθησης LAMS για την εφαρμογή συνεργατικών δραστηριοτήτων Διαφοροποιημένης Διδασκαλίας.
Authors: Κονταξή Ιωάννα , Ρώσσιου Ελένη 
Published: October 2018

Η παρούσα εργασία έχει ως σκοπό την διερεύνηση της αξιοποίησης του Συστήματος Διαχείρισης Μάθησης LAMS για την εφαρμογή συνεργατικών δραστηριοτήτων Διαφοροποιημένης Διδασκαλίας σε μαθητές ΕΠΑΛ. Με γνώμονα την ενίσχυση του παραδοσιακού τρόπου διδασκαλίας σε τάξεις μικτής ικανότητας, σχεδιάστηκαν μαθησιακές δραστηριότητες Διαφοροποιημένης Διδασκαλίας σε περιβάλλον LAMS και εκτελέστηκαν από τους μαθητές ενός Επαγγελματικού Λυκείου, στα πλαίσια του μαθήματος «Προγραμματισμός Υπολογιστών» της Γ’ τάξης ΕΠΑΛ.Για την αξιολόγηση του βαθμού συνεργασίας των μαθητών κατά την εκτέλεση δραστηριοτήτων σε περιβάλλον LAMS, οι είκοσι εφτά (27) συμμετέχοντες μαθητές συμπλήρωσαν ερωτηματολόγιο και παραχώρησαν συνεντεύξεις. Παράλληλα μελετήθηκαν στοιχεία του περιβάλλοντος καταγραφής του LAMS που αφορούσαν το είδος και την ποσότητα των μηνυμάτων που αντάλλαξαν οι μαθητές κατά τις συνεργατικές δραστηριότητες. Κατ’ αυτό τον τρόπο, συλλέχθηκαν ποσοτικά και ποιοτικά δεδομένα, ακολουθώντας μία μικτή προσέγγιση.Η διαδικασία της αποτίμησης μας έδωσε τη δυνατότητα να αποφανθούμε υπέρ της χρήσης του LAMS για την υποστήριξη συνεργατικών δραστηριοτήτων που σχεδιάζονται βάσει των αρχών της Διαφοροποιημένης Διδασκαλίας. Οι μαθητές εκτίμησαν ιδιαιτέρως τον συνεργατικό τρόπο εργασίας στο LAMS, επιθυμώντας την επανάληψη ανάλογων δραστηριοτήτων.
Computational assessment of stomach tumor volume from multi-slice computerized tomography images in presence of type 2 cancer
Authors: Chacón Gerardo , Rodríguez Johel E. , Bermúdez Valmore , Vera Miguel , Hernández Juan Diego , Vargas Sandra , Pardo Aldo , Lameda Carlos , Madriz Delia , Bravo Antonio J. 
Published: October 2018

Background: The multi–slice computerized tomography (MSCT) is a medical imaging modality that has been used to determine the size and location of the stomach cancer. Additionally, MSCT is considered the best modality for the staging of gastric cancer. One way to assess the type 2 cancer of stomach is by detecting the pathological structure with an image segmentation approach. The tumor segmentation of MSCT gastric cancer images enables the diagnosis of the disease condition, for a given patient, without using an invasive method as surgical intervention. Methods: This approach consists of three stages. The initial stage, an image enhancement, consists of a method for correcting non homogeneities present in the background of MSCT images. Then, a segmentation stage using a clustering method allows to obtain the adenocarcinoma morphology. In the third stage, the pathology region is reconstructed and then visualized with a three–dimensional (3–D) computer graphics procedure based on marching cubes algorithm. In order to validate the segmentations, the Dice score is used as a metric function useful for comparing the segmentations obtained using the proposed method with respect to ground truth volumes traced by a clinician. Results: A total of 8 datasets available for patients diagnosed, from the cancer data collection of the project, Cancer Genome Atlas Stomach Adenocarcinoma (TCGASTAD) is considered in this research. The volume of the type 2 stomach tumor is estimated from the 3–D shape computationally segmented from the each dataset. These 3–D shapes are computationally reconstructed and then used to assess the morphopathology macroscopic features of this cancer. Conclusions: The segmentations obtained are useful for assessing qualitatively and quantitatively the stomach type 2 cancer. In addition, this type of segmentation allows the development of computational models that allow the planning of virtual surgical processes related to type 2 cancer.
Optimal Product Design by Sequential Experiments in High Dimensions
Authors: Joo Mingyu , Thompson Michael L. , Allenby Greg M. 
Published: October 2018

The identification of optimal product and package designs is challenged when attributes and their levels interact. Firms recognize this by testing trial products and designs prior to launch, during which the effects of interactions are revealed. A difficulty in conducting analysis for product design is dealing with the high dimensionality of the design space and the selection of promising product configurations for testing. We propose an experimental criterion for efficiently testing product profiles with high demand potential in sequential experiments. The criterion is based on the expected improvement in market share of a design beyond the current best alternative. We also incorporate a stochastic search variable selection method to selectively estimate relevant interactions among the attributes. A validation experiment confirms that our proposed method leads to improved design concepts in a high-dimensional space compared with alternative methods. This paper was accepted by Eric Anderson, marketing.
Mindful Self-Care Scale (MSCS): Adaptation and Validation in a Normative Turkish Sample
Authors: Aydin-Sunbul Zeynep , Malkoc Asude , Aslan-Gordesli Meltem , Arslan Reyhan , Cekici Ferah 
Published: October 2018

<p style="text-align:justify">The aim of this study was to adapt and validate Mindful Self-Care Scale (MSCS) with a normative Turkish sample. Participants of the study were 330 university students (232 females and 97 males) along with the age mean of 20.22 (SD=1.32). In order to validate the six factor structure of Mindful Self-care Scale, a confirmatory factor analysis was conducted. For providing evidence over convergent validity, Mindful Attention Awareness Scale-Adolescent version (Brown, West, Loverich & Biegel, 2011) was concurrently used. The results of the confirmatory factor analysis displayed satisfactory evidence for the six factor Mindful Self-Care Scale (χ2 / df = 1.7; GFI = 0.87, CFI = 0.92; TLI = .91; RMSEA = 0.05). The scale was also found to be significantly correlated to Mindful Attention Awareness Scale-Adolescent (r=.27, p<.001). Also, the Cronbach Alpha value for the whole scale was found .89 yielding satisfactory evidence for the internal consistency of the instrument. The results of the study tentatively yielded that the Mindful Self-Care Scale is a valid and reliable assessment tool of self-care in Turkish culture. As well, further studies examining the psychometric properties of Mindful Self-Care Scale are still needed with larger and diverse samples.</p>
The cost-effectiveness of dual mobility in a spinal deformity population with high risk of dislocation
Authors: Elbuluk A. M. , Slover J. , Anoushiravani A. A. , Schwarzkopf R. , Eftekhary N. , Vigdorchik J. M. 
Published: October 2018

Aims The routine use of dual-mobility (DM) acetabular components in total hip arthroplasty (THA) may not be cost-effective, but an increasing number of patients undergoing THA have a coexisting spinal disorder, which increases the risk of postoperative instability, and these patients may benefit from DM articulations. This study seeks to examine the cost-effectiveness of DM components as an alternative to standard articulations in these patients. Patients and Methods A decision analysis model was used to evaluate the cost-effectiveness of using DM components in patients who would be at high risk for dislocation within one year of THA. Direct and indirect costs of dislocation, incremental costs of using DM components, quality-adjusted life-year (QALY) values, and the probabilities of dislocation were derived from published data. The incremental cost-effectiveness ratio (ICER) was established with a willingness-to-pay threshold of $100 000/QALY. Sensitivity analysis was used to examine the impact of variation. Results In the base case, patients with a spinal deformity were modelled to have an 8% probability of dislocation following primary THA based on published clinical ranges. Sensitivity analysis revealed that, at its current average price ($1000), DM is cost-effective if it reduces the probability of dislocation to 0.9%. The threshold cost at which DM ceased being cost-effective was $1180, while the ICER associated with a DM THA was $71 000 per QALY. Conclusion These results indicate that under specific clinical and economic thresholds, DM components are a cost-effective form of treatment for patients with spinal deformity who are at high risk of dislocation after THA. Cite this article: Bone Joint J 2018;100-B:1297–1302.