bluuebunny/crossref_metadata_2025 huggingface dataset:
Short-sighted Greed? Focusing on the Future Promotes Reputation-based Generosity (trans. Maria Yu. Beletskaya)
Authors: Sjåstad H.
Published: November 2020

Long-term thinking and voluntary resource sharing are two distinctive traits of human nature. Across three experiments (N=1,082), I propose a causal connection: Sometimes people are generous because they think about the future. Participants were randomly assigned to either focus on the present or the future and then made specific decisions in hypothetical scenarios. In Study 1 (N=200), future-focused participants shared more money in a public dictator game than present-focused participants (+39%), and they were willing to donate more money to charity (+61%). Study 2 (N=410) replicated the positive effect of future-focus on dictator giving when the choice was framed as public (+36%), but found no such effect when the choice was framed as private. That is, focusing on the future made participants more generous only when others would know their identity. Study 3 was a high-powered and pre-registered replication of Study 1 (N=472), including a few extensions. Once again, future-focused participants gave more money to charity in a public donation scenario (+40%), and they were more likely to volunteer for the same charity (+17%). As predicted, the effect was mediated by reputational concern, indicating that future-orientation can make people more generous because it also makes them more attuned to the social consequences of their choices. Taken together, the results suggest that focusing on the future promotes reputation-based generosity. By stimulating voluntary resource sharing, a central function of human foresight might be to support cooperation in groups and society.
Utility Function in the Problem of Describing Buyer Behavior on the Financial Market
Authors: Nikolaenko D. N.
Published: November 2020

In the paper a utility function which describes a behaviour of a buyer on a financial market is derived. The obtained result is a first step towards an application of the game theory to description of processes taking place on a financial.
Opportunistic Propensity of Oil Companies in the Safety Issues
Authors: Larina E. I. , Jurevičiūtė A.
Published: November 2020

Oil spills are harmful to both the environment and people. To avoid accidents companies must follow the safety regulations established by the state. Companies tend to avoid compliance with the regulations or fail to comply with them. Inspections of oil companies are carried out by the state in order to ensure an acceptable level of safety at the enterprises. Inspections can be both planned and unscheduled. In this paper we model a competitive market with two oil companies deciding whether to comply with the safety regulations or not. The results of the research show that in the competitive environment companies choose behavioral strategies depending on the expected probability of the inspection. Thus, the higher the probability of the audit, the sooner the company will comply with the safety rules.
Review of the 147th meeting of the Dispute club “Economic Policy Knots” of the Association of the Russian Economic Think Tanks on the Topic “Development Problems and Prospects for the Eurasian Economic Union”
Authors: Zubova E. A. , Izmailov A. A. , Tutov L. A.
Published: November 2020

The work is devoted to a review of the results of the 147rd meeting of the Dispute Club “Eco- nomic Policy Knots” of the Association of Russian Economic Think Tanks (hereinafter referred to as ARETT) on the topic " Problems and Prospects for the Development of the Eurasian Economic Un- ion". The purpose of the event was to discuss a number of issues related to the creation of the EAEU, integration processes within the union, as well as barriers to its development. The debaters were Igor V. Pilipenko, Director of the Institute for Competitiveness and Integration, and Evgeny Y. Vinokurov, Chief Economist of the Eurasian Fund for Stabilization and Development. The review presents the key ideas of the disputants, and also summarizes the main results of their answers to questions.
Factors Affecting Firm’s Annual Turnover in Selected Manufacturing Industries of India
Authors: Singh Ajay K. , Jyoti Bhim
Published: November 2020

Purpose: This study makes a comparison of the manufacturing sector and its determinants for India and selected Asian countries. It examines the factors affecting the annual turnover of randomly selected 154 firms in seven different industries of the Indian manufacturing sector.

Methods: In this study, the firm’s annual turnover is used as a dependent variable. Labor productivity, age, investment on plant & machinery, annual expenditure on marketing, total employees, production technology up-gradation, shortage of skilled workers, skills to improve the process, use of hi-tech tool and technique in production activities, technology transfer abilities, in-house R&D expertise, quality certification, foreign collaboration, waste management capabilities and building capacity of firms are used as independent variables. Regression coefficients of explanatory variables are assessed using linear, log-linear, and non-linear regression models.

Results: The study concluded that the firm's annual turnover has a significant association with technological development related variables, labor productivity, age, technology transfer abilities, in-house R&D expertise, quality certification, and waste management practices of firms.

Implications: It suggests that Indian policymakers need to adopt a strong IPRs, education, and S&T policy in research institutions. India needs to increase R&D expenditure and researchers in research institutions. Research institutions should collaborate with the existing industries to discover more technologies and innovations for the manufacturing sector. All research organizations must set up technology transfer offices to increase technology transfer and commercialization. Furthermore, India needs to set up hi-tech firms to face global challenges.

Originality: It uses primary data of 154 firms which are collected from seven different industries across Indian states. Thus, the study substantially contributes to the existing literature.   

Limitations: This study considers seven different industries that have high diversity in socio-economic, science & technological and IPRs related activities, technology transfer, commercialization of technology, and association with research institutions. Therefore, this study cannot provide policy suggestions for a specific industry.
Do business linkages play a role in upgrading workers’ skills among small and medium-sized enterprises in Vietnam?
Authors: Dao Thi Thu Giang , Cao Thi Hong Vinh
Published: November 2020

Business linkages are of interests to many firms as they can have positive impacts on firms’ performance. Nevertheless, there have been few studies on possible influence of business linkages on motivation to upgrade workers’ skills among small- and medium-sized enterprises (SMEs). Applying a Probit estimation model with Fixed-Effects techniques for panel data with a sample covering more than 6,000 observations of SMEs from Vietnam, the study provides key findings. First of all, the increase in the number of business linkages helps SMEs to upgrade workers’ skills by reducing the percentage of unskilled workers. Secondly, the rise in workers’ skills increases the probability that SMEs train their existing workers, but not new workers. Finally, the increase in firm size plays an important role for SMEs in Vietnam to upgrade their workers’ skills.
Tidal Disruptions of Main-sequence Stars. III. Stellar Mass Dependence of the Character of Partial Disruptions
Authors: Ryu Taeho , Krolik Julian , Piran Tsvi , Noble Scott C.
Published: November 2020

In this paper, the third in this series, we continue our study of tidal disruption events of main-sequence stars by a nonspinning 106
M
⊙ supermassive black hole. Here we focus on the stellar mass dependence of the outcomes of partial disruptions. As the encounter becomes weaker, the debris mass is increasingly concentrated near the outer edges of the energy distribution. As a result, the mass fallback rate can deviate substantially from a t
−5/3 power law, becoming more like a single peak with a tail declining as t
−p
with p ≃ 2–5. Surviving remnants are spun-up in the prograde direction and are hotter than main-sequence stars of the same mass. Their specific orbital energy is ≃10−3× that of the debris, but of either sign with respect to the black hole potential, while their specific angular momentum is close to that of the original star. Even for strong encounters, remnants have speeds at infinity relative to the black hole potential ≲300 km s−1, so they are unable to travel far out into the galactic bulge. The remnants most deeply bound to the black hole go through a second tidal disruption event upon their first return to pericenter; if they have not thermally relaxed, they will be completely disrupted.
Spectroscopic Observations of High-speed Downflows in a C1.7 Solar Flare
Authors: Zhou Yi-An , Li Y. , Ding M. D. , Hong Jie , Yu Ke
Published: November 2020

In this paper, we analyze the high-resolution UV spectra for a C1.7 solar flare (SOL2017-09-09T06:51) observed by the Interface Region Imaging Spectrograph (IRIS). We focus on the spectroscopic observations at the locations where the cool lines of Si iv 1402.8 Å (∼104.8 K) and C ii 1334.5/1335.7 Å (∼104.4 K) reveal significant redshifts with Doppler velocities up to ∼150 km s−1. These redshifts appear in the rise phase of the flare, then increase rapidly, reach the maximum in a few minutes, and proceed into the decay phase. Combining the images from IRIS and Atmospheric Imaging Assembly on board the Solar Dynamics Observatory, we propose that the redshifts in the cool lines are caused by the downflows in the transition region and upper chromospheric layers, which likely result from a magnetic reconnection leading to the flare. In addition, the cool Si iv and C ii lines show gentle redshifts (a few tens of km s−1) at some other locations, which manifest some distinct features from the above locations. This is supposed to originate from a different physical process.
Hinode/EIS Measurements of Active-region Magnetic Fields
Authors: Landi E. , Hutton R. , Brage T. , Li W.
Published: November 2020

The present work illustrates the potential of a new diagnostic technique that allows the measurement of the coronal magnetic field strength in solar active regions by utilizing a handful of bright Fe x and Fe xi lines commonly observed by the high-resolution Hinode/EUV Imaging Spectrometer (EIS). The importance of this new diagnostic technique is twofold: (1) the coronal magnetic field is probably the most important quantity in coronal physics, being at the heart of the processes regulating space weather and the properties of the solar corona, and (2) this technique can be applied to the existing EIS archive spanning from 2007 to 2020, including more than one full solar cycle and covering a large number of active regions, flares, and even coronal mass ejections. This new diagnostic technique opens the door to a whole new field of studies, complementing the magnetic field measurements from the upcoming DKIST and UCoMP ground-based observatories, and extending our reach to active regions observed on the disk and until now only sampled by radio measurements. In this work, we present a few examples of the application of this technique to EIS observations taken at different times during the EIS mission, and we discuss its current limitations and the steps to improve its accuracy. We also present a list of EIS observing sequences whose data include all of the lines necessary for the application of this diagnostic technique, to help the solar community navigate the immense set of EIS data and to find observations suitable for measuring the coronal magnetic field.
A new species of the genus Neotropiella Handschin, 1942 (Collembola: Neanuridae) from Peru
Authors: Palacios-Vargas José G. , Callohuari Yony T.
Published: November 2020

Neotropiellais a genus of springtails which can be of medium size (2 mm) or relatively long (5 mm). These springtails live in leaf litter, under the bark of dead trees or in decomposing wood, mainly in the Neotropical Region and are often collected by litter samples on Berlese funnels or by pitfall traps. Most species have been described, based on relatively few specimens and chaetotaxy of several species is incomplete.

A new species withinNeotropiellawas discovered in recent pitfall trap collections from Peru.Neotropiella peruanasp. n. was taxonomically treated and studied under both phase contrast and scanning electron microscopy. It is similar toN. insularisfrom Brazil, but smaller with only 4 mandibular teeth (vs. 5) and with well-developed unguis lateral teeth. Intraspecific variation of the new species is provided. We also present the first DNA barcodes for the genus.
Revision of the genus Laophontodes T. Scott (Copepoda, Harpacticoida, Ancorabolidae), including the description of a new species and a key to species
Authors: George Kai Horst , Lehmanski Linda Maria Anne , Kihara Terue Cristina
Published: November 2020

The description of Laophontodes volkerlehmanskiisp. nov. (Copepoda, Harpacticoida, Laophontodinae Lang) from the deep sea of the Kairei Field, western Indian Ocean, prompted the examination of the phylogenetic status of Laophontodes T. Scott and the relationships within the genus. The allocation of L. volkerlehmanskiisp. nov. to Laophontodes based on diagnostic characters was relatively straightforward, yet phylogenetic analysis of the genus considering 39 morphological characters detected not a single autapomorphy. This indicates that Laophontodes, which seems to form a monophylum with Ancorabolina George and Bicorniphontodes George, Glatzel & Schröder, actually represents the stem-lineage, retaining the characters of the common ancestor without having developed unique derived morphological characters. Most of the 13 known species of Laophontodes can be characterised by distinct apomorphies. However, phylogenetic comparison highlights some uncertainties due to the apparent heterogeneous distribution of some derived characters across the species, the weakness of other features, and the fragmentary and inadequate description of several species, which, in combination with the unavailability of type material, prevents a detailed comparison of several phylogenetically relevant characters. Thus, the analysis presented here provides a further step towards understanding the systematic relationships of and within Laophontodes, rather than a conclusive answer. Nonetheless, a detailed character discussion and a key to species are given.
Risk factors for neutropenic fever in non-Hodgkin’s lymphoma patients with primary granulocyte colony-stimulating factor prophylaxis
Authors: Kim Yu Ri , Kim Soo-Jeong , Park Yong , Oh Sung Yong , Yun Hwan-Jung , Mun Yeung-Chul , Kim Jin Seok ,   the Korean Society of Hematology Lymphoma Working Party
Published: November 2020

Background/Aims: Febrile neutropenia (FN) interferes with the proper chemotherapy dose density or intensity in non-Hodgkin’s lymphoma (NHL) patients. Chemotherapy with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) ± rituximab has an intermediate FN risk. Prophylactic granulocyte colony-stimulating factor (G-CSF) support is recommended for patients with other host-related risk factors.Methods: We evaluated the risk factors for FN-related admission in NHL patients who have received primary G-CSF (lenograstim) prophylaxis.Results: Data from 148 patients were analyzed. The incidence of neutropenic fever was 96 events (12.2%), and the median period was 3.85 days (range, 0 to 5.9); the median duration of neutropenia was 4.21 days (range, 3.3 to 5.07). Eighty-three FN-related admissions were reported. Advanced age (> 60 years), female sex, a low albumin level, and prednisone use were associated with FN-related admission in multivariable analysis (p = 0.010, p < 0.001, and p = 0.010, respectively). A comparison between diffuse large B-cell lymphoma patients treated with R-CHOP and pegylated G-CSF and those treated with R-CHOP and lenograstim did not reveal significant differences in the FN-related admission rate between the two groups, although the lenograstim-treated group had a higher incidence of severe neutropenia.Conclusions: Elderly patients, female patients, and patients with low albumin levels need to be actively followed-up for FN even when primary prophylaxis with G-CSF has been used.
Seroprevalence of viral infectious diseases and associated factors in Korean patients with inflammatory bowel diseases
Authors: Hong Hee Seung , Jung Jiwon , Park Sang Hyoung , Kim Hwa Jung , Hwang Sung Wook , Yang Dong-Hoon , Byeon Jeong-Sik , Myung Seung-Jae , Yang Suk-Kyun , Ye Byong Duk
Published: November 2020

Background/Aims: Data on the immunoprotective status against measles, mumps, rubella, varicella zoster virus (VZV), hepatitis A virus (HAV), and Epstein-Barr virus (EBV) infection in patients with inflammatory bowel disease (IBD) are still lacking. Therefore, we investigated the seropositivity rates for viral infectious diseases and the associated factors in Korean patients with IBD.Methods: In this retrospective cohort study, serum immunoglobulin G antibody positivity rates against measles virus, mumps virus, rubella virus, VZV, HAV, and EBV viral capsid antigen (VCA) were measured in patients with Crohn’s disease or ulcerative colitis (UC) who first visited the IBD clinic. Seropositivity rates and their associated factors were analyzed.Results: Between January 2016 and December 2018, 263 patients were enrolled (male, 167 [67.3%]; UC, 134 [50.9%]). The median age at serological test was 30 years (interquartile range, 22 to 46). The seropositivity rates were 84.0%, 85.2%, 66.5%, 87.4%, 50.0%, and 93.7% for measles, mumps, rubella, VZV, HAV, and EBV, respectively. Younger age at serological test was associated with seronegative status for measles (adjusted odds ratio [aOR], 0.92; 95% confidence interval [CI], 0.88 to 0.96), VZV (aOR, 0.83; 95% CI, 0.74 to 0.93), and HAV (aOR, 0.93; 95% CI, 0.91 to 0.95). Furthermore, IBD type-UC was associated with seronegative status against VZV (aOR, 0.33; 95% CI, 0.11 to 0.99).Conclusions: Seropositivity rates for common viral infectious diseases in Korean patients with IBD were similar to those of the general population. In the younger age group, protective immunity against measles, VZV, and HAV is required, with proper vaccination, as necessary.
Qu’apporte une perspective socio-économique à la connaissance de la sexualité ?
Authors: Bozon Michel
Published: November 2020

Alors que de nombreux travaux de sciences sociales se sont intéressés aux mobilisations, aux politiques et aux institutions en relation à la sexualité, plus rares sont les analyses qui envisagent les phénomènes sexuels sous l’angle économique. Les approches socio-économiques de la sexualité seraient-elles surtout métaphoriques ou bien ont-elles une valeur heuristique ? L’article aborde cette question en tentant de marier deux courants sociologiques qui abordent leur objet de façon décalée.
Dépendance et intimité. Les dimensions non marchandes du commerce de la sexualité
Authors: Trachman Mathieu
Published: November 2020

L’article met en perspective deux analyses du commerce de la sexualité : celle s’inscrivant dans la perspective du féminisme matérialiste et celle des transactions intimes. Il s’attache en particulier aux concepts d’échange économico-sexuel de Paola Tabet, de dépendance affective de Sonia Dayan-Herzbrun, et aux travaux de Viviana Zelizer. Si les perspectives féministes ont conçu des outils pour analyser l’exploitation sexuelle des femmes par la violence physique, elles interrogent également la production des désirs féminins et les investissements amoureux dans un contexte d’inégale répartition des ressources. Les travaux de V. Zelizer mettent l’accent sur les capacités des individus à définir les frontières d’une relation intime, ils proposent également une conception singulière de l’intimité dans laquelle les partenaires se rendent vulnérables l’un vis-à-vis de l’autre. Les deux approches reposent sur des conceptions distinctes du genre et de l’économie, mais toutes deux mettent en évidence les limites des analyses en termes de marchandisation de la sexualité et inscrivent l’analyse du commerce de la sexualité dans une sociologie de l’amour et de l’intimité où la dépendance et la possibilité de souffrir sont centrales.
Le recrutement des élèves en Classes Préparatoires aux Grandes Écoles scientifiques : entre maîtrise des incertitudes et impératif de survie sur un quasi-marché
Authors: Lanéelle Xavière , David Pauline , Dutercq Yves , Michaut Christophe
Published: November 2020

Les classes préparatoires aux grandes écoles, filière sélective et élitiste de l’enseignement supérieur en France, font l’objet d’un quasi-marché, où se rencontrent l’offre des lycées qui en sont dotés et la demande des candidats, analysé ici sur la base d’entretiens, d’observations et de statistiques publiques. Ce quasi-marché, au financement public, est très concurrentiel, segmenté, au produit singulier. Dès lors, l’incertitude y est forte, ce qui implique des stratégies de recrutement complexes pour la réduire.
L’exigence de sécurité juridique et l’ordre juridique français : « je t’aime, moi non plus… »
Authors: Cassard-Valembois Anne-Laure
Published: November 2020

La sécurité juridique, qui peut être définie par la trilogie clarté, stabilité et prévisibilité du droit, est une exigence qui progresse dans l’ordre juridique français depuis plusieurs décennies en réaction à l’accélération et à la complexification des rapports juridiques. Plus spécifiquement, le renforcement de l’exigence de sécurité juridique vise à remédier au déficit grandissant de la qualité des normes juridiques et à contrebalancer le perfectionnement continuel du principe de légalité. En témoignent tout particulièrement la jurisprudence du Conseil constitutionnel et celle du Conseil d’État.
Insécurité juridique et modulation dans le temps des effets des décisions de justice
Authors: Mamoudy Olga
Published: November 2020

Les pouvoirs de modulation dans le temps des effets des décisions de justice sont aujourd’hui pleinement intégrés dans l’office des juges français – en particulier dans celui du juge de l’excès de pouvoir et dans celui du Conseil constitutionnel, juge de la question prioritaire de constitutionnalité. L’intérêt de la mise en œuvre de ces pouvoirs pour la protection de la stabilité des situations juridiques n’est plus à démontrer et de nombreuses études ont déjà largement traité cette question. Les rapports entre sécurité juridique et modulation temporelle sont toutefois peut-être moins simples qu’il n’y paraît. Fondée sur la sécurité juridique, la modulation peut, paradoxalement générer de l’insécurité juridique. Cela est lié à certaines utilisations du standard des « conséquences manifestement excessives » en jurisprudence ou aux difficultés particulières d’exécution des décisions dont les effets sont modulés dans le temps.
Le principe de sécurité juridique et le droit fiscal
Authors: Périn-Dureau Ariane
Published: November 2020

Brillant par son absence du corpus normatif textuel, la sécurité juridique n’a de cesse de tourmenter la doctrine, spécifiquement en matière fiscale. Progressivement érigée en principe, la malléabilité du concept de sécurité juridique offre de nombreuses perspectives. Dans sa dimension objective, le principe impose intelligibilité et accessibilité de la loi, le contribuable devant pouvoir connaître et anticiper sa charge fiscale, principes d’égalité et de consentement à l’impôt obligent. Dans son versant subjectif, la sécurité juridique suppose le respect des situations acquises, par la loi, ou l’écoulement du temps. La matière fiscale révèle toutefois que cet objectif de sécurité juridique se réalise par une mise en balance entre les deux composantes du principe.
La prise en compte de l'exigence de sécurité juridique par le Parlement au service de la qualité de la loi
Authors: Bergougnous Georges
Published: November 2020

Si la tradition légicentriste a fait de la loi, norme générale et impersonnelle, une garantie en elle-même de la sécurité juridique, c’est en raison du rôle irremplaçable tenu par la représentation nationale au cours de son élaboration. La procédure parlementaire, soumise à un vigilant contrôle de constitutionnalité, est caution de la qualité de la loi que le « bon déroulement du débat démocratique » (95-370DC) doit assurer, en respectant les droits des représentants de la Nation et en favorisant l’expression de l’intention du législateur. Découvertes par le Conseil constitutionnel, des exigences de valeur constitutionnelle sont venues étayer la procédure législative, en exigeant du législateur, dans un souci de sécurité juridique, qu’il respecte sa compétence et rende la loi accessible et intelligible.
Les principes de sécurité juridique et de confiance légitime dans la jurisprudence de la Cour de justice de l’Union européenne
Authors: Martucci Francesco
Published: November 2020

La sécurité juridique et la confiance légitime ont été consacrées par la Cour de justice en tant que principes généraux du droit de l’Union. Elles s’imposent ainsi tant aux institutions, organes et organismes de l’Union qu’aux autorités et juridictions nationales lorsque celles-ci mettent en œuvre le droit de l’Union. Ces principes sont inhérents à un système juridique organisé selon le modèle de l’Union de droit, se traduisant par des exigences à respecter dans l’édiction et l’application du droit de l’Union. Ils s’avèrent également modelés par les caractéristiques spécifiques de l’ordre juridique intégré de l’Union.
La modulation des effets dans le temps et le revirement de la jurisprudence
Authors: Luciani Massimo
Published: November 2020

Tant la modulation des effets dans le temps des décisions judiciaires que le revirement de la jurisprudence sollicitent des questions de grande envergure au point de vue de la tutelle de la sécurité juridique, l’un des piliers de l’État constitutionnel de droit. L’ordonnancement juridique italien connait les deux phénomènes : le premier surtout dans la jurisprudence constitutionnelle ; le deuxième surtout dans celle des juridictions supérieures. La modulation des effets temporels a été introduite dans la jurisprudence constitutionnelle par la sent. n° 10 de 2015. Le régime des revirements jurisprudentiels est construit de façon telle à concilier les exigences de tutelle de la sécurité juridique et celles de la liberté d’interprétation du juge.
Patient-Reported Outcomes Are Equivalent in Patients Who Receive Vertebral Body Tethering Versus Posterior Spinal Fusion in Adolescent Idiopathic Scoliosis
Authors: Qiu Catherine , Talwar Divya , Gordon James , Capraro Anthony , Lott Carina , Cahill Patrick J.
Published: November 2020

Anterior vertebral body tethering (AVBT), or spinal growth tethering, is an emerging technology that recently received Food and Drug Administration (FDA) approval through a humanitarian device exemption designation to treat idiopathic scoliosis patients with remaining growth. This study compared patients who underwent AVBT with those treated with standard-of-care posterior spinal fusion (PSF) to determine inherent differences in patients and families who seek cutting-edge treatments. The authors reviewed 62 PSF patients from a multicenter registry and 20 AVBT patients from an FDA-approved investigational clinical trial. The authors examined demographics, preoperative clinical and radiographic variables, and health-related quality of life (HRQOL). All included patients preoperatively were classified as Lenke type 1 or 2 with a thoracic curve of 35° to 60°, a lumbar curve less than 35°, and a skeletal maturity score of Risser sign 0 or Sanders bone age of 4 or less. Idiopathic scoliosis patients treated with surgical intervention were primarily White females who were 12 years old. No differences in demographics, clinical variables, and radiographic measures were detected between the PSF and AVBT cohorts. The AVBT group showed more thoracic flexibility on bending radiographs, correcting on average 59% compared with 43% for PSF patients (
P
=.005). Patients had similar HRQOL total scores and scores across each of the 5 domains of the Scoliosis Research Society Questionnaire Version 22. The percentage of patients scoring below 4.0 within each domain was comparable between cohorts. Scoliosis patients who underwent vertebral tethering at a level of deformity magnitude and maturity similar to those who underwent posterior fusion did not differ at baseline regarding demographics, clinical variables, and HRQOL. [
Orthopedics
. 2021;44(1):24–28.]
Postoperative Compliance and Return to Work After Rotator Cuff Repair: Value of an Interactive Online Rehabilitation Program Among Patients Treated Under Workers' Compensation
Authors: Anderson Lesley , Kinsman Sean , Oberlander MichaeL
Published: November 2020

Outcomes after rotator cuff repair (RCR) typically are poorer for workers' compensation (WC) than for patients with private insurance. This study examined augmentation of the traditional rehabilitation protocol with an online exercise program. Between March 2016 and July 2018, 48 WC patients who underwent RCR were introduced to a digital rehabilitation program (application). Patients were divided into patients who used the application along with traditional physical therapy (PT) (group 1) and patients who underwent only traditional PT (group 2). Patient performance was assessed using standardized patient-reported outcome measures (PROMs), return-to-work (RTW) status, number of PT sessions, and complication/revision rate. Patients were monitored for a minimum of 1 year postoperatively. A significant improvement in RTW period was noted for group 1 patients, who resumed modified duty 10 weeks earlier than group 2 patients. A positive trend also was noted for return to full duty, with group 1 resuming full duty 7 weeks before group 2. There were no complications or reoperations in group 1 compared with 4 (16%) complications in group 2. The 2 groups underwent the same average number of PT sessions (27 sessions). Patient-reported outcome measures were captured only for group 1, which demonstrated average postoperative improvement of 3 points on a visual analog scale and 32.5 points in American Shoulder and Elbow Surgeons scores. Incorporating an online exercise program within the traditional rehabilitation protocol for WC patients undergoing RCR resulted in earlier return to work and was associated with better pain relief, greater return of function, and lower complication rate. [
Orthopedics
. 2021;44(2):e197–e202.]
Volar and Dorsal Blood Supply to the Lunate: A Cadaveric Study
Authors: Carbajal Valerie , Bajwa Navkirat S. , Toy Jason O. , Ahn Uri M. , Ahn Nicholas U.
Published: November 2020

Although various studies have proposed vascular and mechanical factors, the etiology of Kienböck disease is unknown. Kienböck theorized that lunatomalacia resulted from traumatic disruption of blood supply and bony nutrition to the lunate. Extraosseous supply to the lunate, as far as volar or dorsal vessels are concerned, is still controversial. This study evaluated the extraosseous nutrient foramina from the dorsal and volar aspects of lunate specimens. A total of 913 specimens from the Hamann-Todd Osteological Collection in Cleveland, Ohio, were examined. The nutrient artery foramina on left and right lunate specimens were examined from dorsal and volar aspects. The number of nutrient artery foramen was tabulated. Age, sex, and race data were collected. Specimens were divided into groups according to the number of nutrient artery foramina, and the dorsal and volar foramina were compared. The average number of foramina on the dorsal aspect of the lunate (1.71) was greater than the volar aspect (1.64), except in specimens younger than 35 years. A greater number of specimens had 3 or more foramina on the dorsal side compared with the volar aspect. Based on this study, there was significant contribution of dorsal arterial vessels to the blood supply of lunate specimens older than 35 years, which contrasts with findings in earlier studies. The disruption of dorsal intercarpal and radiocarpal ligaments leading to the disruption of the dorsal arterial arches may contribute to vascular insufficiency of the lunate and should be evaluated further in the etiopathogenesis of Kienböck disease. [
Orthopedics
. 2021;44(2):e243–e247.]
Telehealth for Pregnant Women With Opioid Use Disorder: A Theory-Based Approach
Authors: Abebe Sheila Y. , Goldsby Elizabeth A. , Renbarger Kalyn M.
Published: November 2020

Pregnant women with opioid use disorder (OUD) face barriers to receiving substance use treatment and prenatal care, which can lead to adverse health outcomes. The purpose of the current article is to inform practice through the design of an innovative, nurse-led approach derived from King's Theory of Goal Attainment to care for pregnant women with OUD using telehealth technologies. The practice model encompasses King's theory using telehealth by addressing perceptions in the nurse–client interaction, establishing effective communication in nurse–client interactions, building mutual goal setting and decision making, and promoting clients' goal attainment using nurses' knowledge and skills. This theory-based approach using telehealth technologies can provide nurses the opportunity to increase effectiveness in nurse–client interactions, use evidence-based communication strategies for expanded access, and deliver safe care for pregnant women with OUD. [J
ournal of Psychosocial Nursing and Mental Health Services, 58
(12), 13–20.]
Persona-Scenarios in Game Development
Authors: Patel Harshada , Hallewell Madeline J.
Published: November 2020

The 3D Tune-In project developed serious/leisure game applications to educate hearing aid (HA) users about how HA functionalities could improve hearing in different sound environments. The application development team had little prior experience catering for end-users with hearing loss. HA users and their communication partner were consulted regarding their communication difficulties and communication strategies in different environments. Participants reported many hearing problems, affective issues, problems with their HA, tensions in their relationship caused by hearing issues, and they noted a need for training in how best to use HAs. Persona-scenarios were created outlining user needs and goals and a user-requirements table detailed how end-users might interact with proposed applications, both of which were presented to developers during the initial application design period. Game developers identified that these resources positively influenced the development of their application. They were able to produce a useful and useable application for their new target user.
Developing a Gameful Approach as a Tool for Innovation and Teaching Quality in Higher Education
Authors: Sendra Anna , Lozano-Monterrubio Natàlia , Prades-Tena Jordi , Gonzalo-Iglesia Juan Luis
Published: November 2020

This paper introduces the results of applying a gameful approach based on six playful activities as a tool to improve the learning process in higher education. A total of 850 students from different courses of Universitat Rovira i Virgili (Spain) were involved in the study. The strategy was evaluated through a participant observation (active and passive) and mixed-methods surveys answered by the students. Results point out that most participants responded positively to the activities proposed. The reported levels of motivation and engagement also indicate the capabilities of this strategy as a method to enhance the learning experience of students. Despite these positive outcomes, challenges like the impact on working practices of teachers or the long-term engagement of gameful approaches requires additional research.
An Analysis of Safety Practices of Farmers in Odisha (India) for Sustainable Agriculture
Authors: Mishra Debesh , Chauhan Hullash , Sahoo Ashok Kumar
Published: November 2020

An in-depth review of literature was done in this study which was further followed by consultation and discussion with experts and farmers in the agricultural sectors of Odisha (India) in view of the adoptability perception and behaviours of farmers towards the health and safety practices. Then, a strengths, weaknesses, opportunities, and threats (SWOT) analysis was employed in order to evaluate the current agricultural safety practices by the farmers and its impact for a sustainable agriculture. Further, on the basis of the data and information obtained from the farmers as well as the experts, the major barriers in context with the sustainability indicators (social, environmental, and economic) for the adoption of health and safety practices were obtained followed by the use of the Fuzzy-COPRAS method to rank the barriers in order of their preferences.
Antibacterial Effects of Calotropisgigantea (L) Extracts on Porphyromonasgingivalis
Authors: Alibasyah Zulfan M. , Ningsih D.S. , Sunnati  , Andayani R. , Ranggaswuni N.P.
Published: November 2020

ThePorphyromonasgingivalisis one of the dominant bacteria that causes chronic periodontitis. These bacteria can penetrate the gingiva and cause tissue damage directly or indirectly with the induction of inflammation. The growth ofPorphyromonasgingivaliscan be inhibited by administrating the active compounds from plants that have an antibacterial effect such asCalotropisgigantealeaves.This study aimed to determine the antibacterial potential of Bidurileaves (Calotropisgigantea) extract against thePorphyromonasgingivalisATCC. In this study the Biduri leaves were extracted by maceration method using 70% ethanol solvent. The antibacterial potential test of 70% ethanol extract of Biduri leaves (with a concentration of 5%, 10%, 15%, 20%, 25%, 30%, and 35%) against thePorphyromonasgingivaliswas carried out using dilution method with 4 times repetition on Tryptone Soy Agar (TSA) media.The results of the study were analyzed using the One Way ANOVA test showing there were significant differences in the number ofPorphyromonasgingivalisATCC 33277 colonies due to administration of 70% ethanol extract of Bidurileaves (Calotropisgigantea)with p values <0,05. The test results were continued with the Post Hoc Tamhane test to determine the significant difference of the treatment groups. Based on the results of the study it could be concluded that 70% ethanol extract of Biduri leaves (Calotropisgigantea) had antibacterial potential againstPorphyromonasgingivalisATCC 33277 starting from the smallest concentration of 5% to the highest concentration of 35%.
Root Canal Treatment and Endodontic Surgery on Maxillary Incisor with Radicular Cyst
Authors: Yoanita Dwiaidina , Yulita Kristanti , Pribadi Santosa
Published: November 2020

Radicular cyst is an odontogenic cyst located at the apical or lateral side of the radix, due to chronic inflammation after pulp necrose. It contains a combination of inflammatory tissue and malassez epithelial cells which extensively proliferates. Treatment options for radicular cyst are conventionally followed by surgical endodontic. The aim of study was to treat maxillary incisisor with necrotic pulp and radicular cyst. A female 35-year-old patient came to Gadjah Mada University Dental Hospital. She felt inconvenience with her broken central incisive restoration. Past dental history revealed that there was composite resin restoration that had been filled since 10 years ago and asymptomatic. Tooth vitality test shows negative results. Clinical examination showed negative results to percussion test and palpation, slight mobility was detected. Periapical radiograf showed a radiolucent area with radiopaque border around the apical teeth with diameter approximately 2.5 mm. The treatment began with step-back technique root canal treatment and lateral condensation technique obturation. Apicoectomy and enucleation were performed 4 weeks after root canal treatment. One week post-treatment control showed there was no pain detected and normal healing process happened. Conclusion: Apicoectomy and enucleation are treatment of choice for the management radicular cyst to restore tooth function.
Surface Microstructure Study of Self Cured Acrylic Resin after Immersion in Arabica Gayo Coffee
Authors: Diansari Viona , Subhaini  , Putri Arihta
Published: November 2020

The water absorption on self-cured acrylic resin is higher than the heat cured acrylic resin. Incoming water positions itself between the polymer chains and affects the surface microstructure of self-cured acrylic resin. The absorption of liquids such as Arabica Gayo coffee may aggravate the surface structure of self-cured acrylic resins due to their acid content. This study aims to find out the microstructure of self-cured acrylic resin surface after immersed in Arabica Gayo coffee for 2 and 7 days. This study used 5 specimens of self-cured acrylic resin (MeliodentTM) with size 10x10x1,5 mm3. Each specimen was immersed in aquades for 24 hours to reduce the residual monomer and then be given different immersion treatments. The immersion temperature used was 55°C. After immersion, surface microstructure observation was done using Scanning Electron Microscope (JEOL JSM 6510 LA). The images obtained were bubbles after being immersed in aquades for 2 days and more on day 7, micro porous after being immersed in Arabica Gayo coffee for 2 days and more on day 7 than untreated specimens. The conclusion of this study is micro porous formed more on the surface of self-cured acrylic resin along with the duration of self-cured acrylic resin immersion in Arabica Gayo coffee.
Color Stability of Glass Ionomer Cement (GIC) Modified with Silica from Beach Sand after Immersion in Arabica Gayo Coffee
Authors: Rahmayani Liana , Sundari Iin , Ningsih Diana Setya , Sofya Pocut Aya , Nasution Rabithah
Published: November 2020

The discoloration is a condition that can affect the color stability of a material. The discoloration of glass ionomer cement (GIC) can occur due to extrinsic and intrinsic factors. GIC has poor mechanical properties, which are brittle, which shows high microporosity in GIC. Microporosity of GIC can affect the ability of materials in maintaining color stability. Therefore, it is necessary to add material alternatives to improve the mechanical properties in order to maintain color stability in GIC, such as silica. This study aims to determine the color change in GIC which is added with 5% silica after immersion in gayo arabica packaging coffee. Cylindrical specimens with a diameter of 5 mm and 2 mm thick. Specimens amounted to 16 pieces consisting of two treatment groups, the first group using conventional GIC and the second group using GIC with the addition of silica. Both groups were immersed in arabica gayo coffee for 4 days. Color changes were observed with a stereomicroscope and then the value of CIELab was used using Adobe Photoshop, which measured its average color change parameter (ΔE). The average value of discoloration of conventional GIC ΔE = 5.77 and GIC with the silica addition ΔE = 7.94. The results of the unpaired t-test show a value (p> 0.05) which means that there is a significant color change. It can be concluded that the two groups had discoloration after immersion in Arabica gayo coffee, and the color change value in conventional GIC with the addition of silica was higher than conventional GIC.
Luminescence Property of Yb3+, Er3+ Co-Doped Oxy-Fluoride Transparent Glass
Authors: Su Ji Yi , Zhang Xi Yan
Published: November 2020

Yb3+, Er3+ co-doped oxy-fluoride transparent glass materials were prepared by high temperature melting method. The formulation was defined, and the preparation technology was studied. The melting temperature was 1020 °C and the constant hour was 45 minutes. The temperature used in the heat treatment and the microcrystalline heat treatment conditions were also studied. Spectral measurement, absorption spectrum measurement, transmission spectrum measurement and a series of other research methods were used to characterize the material. There were two emission peaks which at 545 nm and 665 nm, existed in the Yb3+/Er3+ co-doped materials. The emission peaks correspond to the 4S3/2→4I15/2 and 4F9/2→4I15/2 transitions of Er3+ ion, respectively. The doping amount of rare-earth ions has obvious influence on the luminescence characteristics. When the doping concentration of Er3+ was 3mol% and Yb3+/Er3+ was 6:1.5, the luminescence intensity and efficiency were the highest.
Embedding Bio-Filler Materials to Enhance Physical-Mechanical-Thermal Properties of Concrete
Authors: Tangboriboon Nuchnapa , Niyasom Samit
Published: November 2020

At present, waste generation is fast-growing around the world due to the increasing of population. Therefore, recycling end-of life materials for sustainable and cleaner production is becoming a major target worldwide. The recycling waste materials is trend toward for many industries to reduce both the consumption of natural resources and the cost of products while protecting the environment from the harmful effects of waste materials. Adding water hyacinth fiber, banana fiber and eggshell powder can increase physical-mechanical-thermal properties of concrete. Concrete with/without adding 0, 0.02 and 0.05 wt% bio-filler via hydration reaction affects to good physical-mechanical-thermal properties. Especially adding 0.05 wt% eggshell powder into concrete has the highest compressive strength (22.08 ± 0.66 MPa) and lowest water absorption (1.62 ± 0.16 %) better than those of concrete without adding bio-filler. Furthermore, adding 0.05 wt% water hyacinth fiber affects to obtain the highest tensile strength equal to 187.63 ± 28.45 MPa. The obtained concrete added bio-filler samples have potential to be used as a good insulation material and building material due to low density, low water absorption, low price, good mechanical and thermal insulation.
Effect of a Chemical Treatment Series on the Structure and Mechanical Properties of Abaca Fiber (Musa textilis)
Authors: Custodio Cyron L. , Yang Xuan , Wilsby Astrid E. , Waller Victor F. , Aquino Ruth R. , Tayo Lemmuel L. , Senoro Delia B. , Berglund Lars A.
Published: November 2020

This study investigates the relationships between the composition, cell wall microstructure, and mechanical properties of the abaca fiber. Raw abaca fibers have undergone a series of sequential chemical treatments (acetone/methanol, boiling water, EDTA, HCl, NaClO2, and NaOH) to selectively remove certain non-cellulosic components (NCCs) in the fiber, such as waxes, water-soluble fragments, pectin, and lignin in a step-by-step manner. Changes in composition, morphology, and mechanical properties were observed using FTIR spectroscopy and ion chromatography, digital microscope and SEM, and tensile tests, respectively. The raw fiber was composed of 23% NCCs, 18% hemicellulose, and 58% cellulose, and exhibited a 17.4 GPa Young’s modulus and a 444 MPa tensile strength. Furthermore, the raw abaca fibers demonstrated a linear tensile graph without yielding, and a planar fracture surface without fiber pull-outs, thus suggesting a highly elastic but brittle nature. At the end of the alkali treatment, the fibrillated fiber was 83% cellulose, yet the stiffness and strength dropped to 7.3 GPa and 55 MPa, respectively, as more components were removed, and microfibril relaxation and realignment have occurred. Load-bearing cellulose and hemicellulose accounted for 42% and 36% of the stiffness, respectively, due to –OH groups capable of hydrogen bonding. 63% of the strength was due to thenative NCC matrices, which contribute a significant role within the cell wall’s load-transfer activities.