bluuebunny/crossref_metadata_2025 huggingface dataset:
Securing the Rule of Law through un Peace Operations in Liberia
Authors: Chalmers Shane , Farrall Jeremy
Published: November 2020

In this article, we examine how the tension between justice and force informs the efforts of the United Nations (un) to promote the rule of law through its peace operations. We begin by showing how the un’s discourse of ‘securing peace’ has three antagonistic propositions holding it together in a combustible way. The propositions are: first, peace contains the force of war; second, law contains the force of peace; and third, justice contains the force of law. With the antagonistic arrangement of these propositions in mind, we then show how the un has developed two contrasting approaches to promoting the rule of law through its peace operations, which we describe as its ‘aspirational’ and ‘operational’ visions of the rule of law. The aspirational vision combines the need for an effective and accountable security sector with a focus on the substantive requirements of justice, thus aspiring to bring all three propositions together in the rule of law. By contrast, the un’s operational vision prioritizes security, stability and order, thus losing sight of the importance of justice. We demonstrate this divergence between the un’s aspirational and operational visions through a study of the un’s peace operations in Liberia between 1993 and 2014, with a focus on the rule of law promotion activities of the un Mission in Liberia (unmil). We argue that the un’s efforts to promote the rule of law through its peace operations risk establishing the conditions for a state of tyranny if they lose sight of the antagonistic but co-dependent relationship between justice and force. The challenge is to prioritize the requirements of force and justice at the same time. While this will not resolve their antagonistic relationship, it has the virtue of acknowledging their co-dependency as an uncomfortable yet unavoidable condition of a state based on the rule of law.
The Reaction to the Ebola Epidemic within the United Nations Framework: What Next for the World Health Organization?
Authors: Acconci Pia
Published: November 2020

The World Health Organization (who) was established in 1946 as a specialized agency of the United Nations (un). Since its establishment, the who has managed outbreaks of infectious diseases from a regulatory, as well as an operational perspective. The adoption of the International Health Regulations (ihrs) has been an important achievement from the former perspective. When the Ebola epidemic intensified in 2014, the who Director General issued temporary recommendations under the ihrs in order to reduce the spread of the disease and minimize cross-border barriers to international trade. The un Secretary General and then the Security Council and the General Assembly have also taken action against the Ebola epidemic. In particular, the Security Council adopted a resolution under Chapter vii of the un Charter, and thus connected the maintenance of the international peace and security to the health and social emergency. After dealing with the role of the who as a guide and coordinator of the reaction to epidemics, this article shows how the action by the Security Council against the Ebola epidemic impacts on the who ‘authority’ for the protection of health.
Legality of Foreign Military Intervention in International Law: Four Case Studies
Authors: Vashakmadze Mindia
Published: November 2020

Foreign military intervention in internal conflicts remains an important feature of today’s international relations. At the same time, the paradigms of interventions in international law are changing. In today’s world, questions related to legality and legitimacy of foreign military interventions are more often raised than ever. However, in many cases, there is a gap between legality and legitimacy of such interventions. Concepts such as humanitarian intervention and the responsibility to protect attempted to bridge this gap; however, both concepts remain contested. Complex questions of substantive law and the institutional framework of collective security are discussed in this context. Meanwhile, classic exceptions to the general prohibition on the use of force, such as self-defence, are broadly interpreted. Certain States aspire to revive their ambitions by using military means to protect nationals abroad. The paper examines four cases (Georgia, Libya, Syria and Ukraine) in which different arguments have been held to justify military interventions. It attempts to answer the question as to whether there are new paradigms of military intervention in international law and to what extent the arguments made by the States to justify military interventions have influenced relevant norms and the structure of international law.
The Politics of Recognition: Changing Understandings of Human Rights, Social Development and Land Rights as Normative Foundation of Global Social Policy
Authors: Leisering Lutz , Davy Benjamin , Davy Ulrike
Published: November 2020

The recent literature has identified ‘global social policy’ as a new field of global politics. The assumption is that since the 1990s ‘social’ issues have moved to global agendas which had been dominated by military and security matters and by economic issues. We inquire into the normative foundations of the new policy field. We conceive of social recognition – recognition of social problems, of individuals and groups in need, and of collective social responsibility – as the most basic normative and cognitive foundation of social policy. We, therefore, investigate if, when and how global politics of social recognition have emerged since the 1940s, focussing on human rights, social development, and land rights. We argue that these three fields have become key arenas for the recognition of the social, underpinning the rise of global social policy. The three fields emerged in the 1940s and 1950s but, as we demonstrate, only changing interpretations and understandings of human rights, of social development, and of land rights turned them into unequivocal normative foundations of social policy. The recognition perspective also highlights limitations of global social policy, such as a recognition overload and categorically bridled universalism. The article draws on interdisciplinary empirical work from law, sociology and land policy.
The Central Characteristic of Religiosity Is Integration into a Moral Community, not Supernaturalism
Authors: McCaffree Kevin
Published: November 2020

Researchers often define religion according to the presence (vs. absence) of supernaturalism. This has several serious shortcomings: (1) it construes religion narrowly as a historical/anthropological phenomenon, (2) it ignores the underlying evolved cognitive mechanisms facilitating tight group membership, which operate regardless of belief content and (3) it ensures that the study of religion will be obsolete if secularization continues. Instead of a slavish adherence to the criteria of supernaturalism, I suggest here a broader and more evolutionarily-informed definition of religion (and secularity): religion is what emerges when individuals become highly (perhaps overly-) integrated into a moral community; secularity is what emerges when individuals are moderately (perhaps under-) integrated into a moral community.
A new name and typifications in Rhynchospora section Longirostres (Cyperaceae)

Authors: WEBER PHILIPY , THOMAS WILLIAM WAYT , MIOTTO SILVIA TERESINHA SFOGGIA
Published: November 2020

During the preparation of a taxonomic revision of Rhynchospora sect. Longirostres, we found several scientific names that needed to be lectotypified or neotypified. In addition, Rhynchospora amazonica subsp. guianensis is being recognized at the level of species and requires a new name, Rhynchospora rionegrensis. This species is described and illustrated and differs from R. amazonica by its lateral and terminal, generally turbinate inflorescences, brown spikelet scales, loose fascicles, and longer stylopodium. Lectotypes are chosen for Calyptrostylis longirostris (the basionym of R. rionegrensis), R. amazonica, and R. macrostachya, and a neotype chosen for R. stenocarpa.
Nomenclatural changes in the suborders Auchenorrhyncha (Hemiptera) and Paleorrhyncha (Palaeohemiptera)
Authors: DMITRIEV DMITRY A.
Published: November 2020

Nomenclatural changes are proposed for numerous taxon names in the Insect orders Hemiptera and Palaeohemiptera. New replacement names are proposed for six genera, three subgenera, 55 species and six subspecies, additionally a homonymous name for a genus and eight homonymous names for species are substituted with the names of junior synonyms; 13 new synonyms are recognized; type species are fixed for four genera; 26 new combinations for species names are established.
New species of Soa Enderlein, 1904 (Psocodea: ‘Psocoptera’: Lepidopsocidae) from the Western Ghats of India
Authors: RAMESH GURUSAMY , BABU RAJAPPA , SUBRAMANIAN KUMARAPURAM A.
Published: November 2020

Soa papanasam sp. nov. is described and illustrated based on both sexes from Kalakkad Mundanthurai Tiger Reserve and Meghamalai Wildlife Sanctuary, Tamil Nadu, India. It differs from all other known species of Soa, by hindwing vein R1 originating proximal to vein M1 and distal to M2. This is the first species of the genus Soa described from India.
Redescription of a poorly known upogebiid mud shrimp Gebiacantha acanthochela (Sakai, 1967) and description of a new species of the genus from the Ryukyu Islands, Japan (Decapoda: Gebiidea)
Authors: KOMAI TOMOYUKI
Published: November 2020

Two species of the upogebiida mud shrimp genus Gebiacantha Ngoc-Ho, 1989, currently represented by 19 described species, are reported from the Ryukyu Islands, Japan. The first, G. acanthochela (Sakai, 1967), is redescribed in detail based on two female specimens from Amami Islands the second discovered since the original description, enabling better assessment of its diagnostic characters. The second, G. fortispinata n. sp., is described on the basis of a single female holotype from Okinawa Island. It appears closest to G. multispinosa Ngoc-Ho, 1994, known with certainty only from New Caledonia, but the proportionally narrower telson with a more deeply notched posterior margin and the distally unarmed pereopod 3 merus distinguish the new species from G. multispinosa. Three species of Gebiacantha, including G. sagamiensis Komai, 2017, are now known from Japanese waters.
Atmospheric Chemistry Signatures of an Equatorially Symmetric Matsuno–Gill Circulation Pattern
Authors: Wilka Catherine , Solomon Susan , Cronin Timothy W. , Kinnison Doug , Garcia Rolando
Published: November 2020

Matsuno–Gill circulations have been widely studied in tropical meteorology, but their impact on stratospheric chemistry has seldom been explicitly evaluated. This study demonstrates that, in a model nudged to reanalysis, anticyclonic Rossby wave gyres that form near the tropopause as a result of equatorially symmetric heating in the troposphere provide a dynamical mechanism to influence tropical and subtropical atmospheric chemistry during near-equinox months. The anticyclonic flow entrains extratropical air from higher latitudes into the deep tropics of both hemispheres and induces cooling in the already cold upper-troposphere/lower-stratosphere (UTLS) region. Both of these aspects of the circulation allow heterogeneous chlorine activation on sulfuric acid aerosols to proceed rapidly, primarily via the HCl + ClONO2 reaction. Precipitation rates and heating rates from reanalysis are shown to be consistent with these heating and circulation response patterns in the months of interest. This study analyzes specified dynamics simulations from the Whole Atmosphere Community Climate Model (SD-WACCM) with and without tropical heterogeneous chemistry to demonstrate that these circulations influence substantially the distributions of, for example, NO2 and ClO in the UTLS tropics and subtropics of both hemispheres. This provides a previously unrecognized dynamical influence on the spatial structures of atmospheric composition changes in the UTLS during near-equinox months.
An Idealized Physical Model for the Severe Convective Storm Environmental Sounding
Authors: Chavas Daniel R. , Dawson II Daniel T.
Published: November 2020

This work develops a theoretical model for steady thermodynamic and kinematic profiles for severe convective storm environments, building off the two-layer static energy framework developed in work by Agard and Emanuel. The model is phrased in terms of static energy, and it allows for independent variation of the boundary layer and free troposphere separated by a capping inversion. An algorithm is presented to apply the model to generate a sounding for numerical simulations of severe convective storms, and the model is compared and contrasted with that of Weisman and Klemp. The model is then fit to a case-study sounding associated with the 3 May 1999 tornado outbreak, and its potential utility is demonstrated via idealized numerical simulation experiments. A long-lived supercell is successfully simulated with the historical sounding but not the analogous theoretical sounding. Two types of example experiments are then performed that do simulate a long-lived supercell: 1) a semitheoretical experiment in which a portion of the theoretical sounding is modified to match the real sounding (low-level moisture); 2) a fully theoretical experiment in which a model physical parameter is modified (free-tropospheric relative humidity). Overall, the construction of this minimal model is flexible and amenable to additional modifications as needed. The model offers a novel framework that may be useful for testing how severe convective storms depend on the vertical structure of the hydrostatic environment, as well as for linking variability in these environments to the physical processes that produce them within the climate system.
Burdens in mental health recovery: Causal beliefs and their relation to stigma and help seeking recommendations
Authors: Colman Lisa , Delaruelle Katrijn , Luypaert Carolien , Verniest Rebekka , Bracke Piet
Published: November 2020

Background:

Lay attitudes are often seen as potential barriers to mental health recovery. But apart from perceiving them as potential barriers, they can also play an important role in stimulating individuals to consult (in)formal help sources, in particular through the process of help referral. Where existing research mainly focusses on actual help seeking behaviour, this study will focus on lay publics’ referral behaviour.

Aims:

This study analyses the relation between causal beliefs and stigmatising attitudes and social distance on the one hand, and (in)formal help seeking recommendations on the other.

Methods:

Data from a survey carried out in 2019, assessing the attitudes of Public Health Insurance Provider (HIP) members towards mental health problems, was used. Part of the survey questions was based on a quantitative quasi-experimental design, using hypothetical written vignettes. The weighted data represent a sample of the adult Flemish population (22–94 years, N = 5675). Multiple linear regression analysis was used to examine the relation between causal beliefs and stigma, while binominal logistic regression analysis was used to investigate the relation between causal beliefs and help seeking recommendations.

Results:

The results reveal that causal beliefs significantly associate with stigma, measured by stigmatising attitudes and social distance: personal- or biogenetic beliefs associate with more stigma, where psychosocial beliefs associate with less stigma. Concerning help seeking recommendations, psychosocial beliefs associate with recommending psychological or psychotherapeutic care, biogenetic beliefs associate with advising help from general practitioners and suggesting psychiatric help, while personal beliefs negatively associate with recommending formal help. Meanwhile, biogenetic beliefs associate with less informal help seeking recommendations (e.g. family, friends and online self-help), where personal beliefs associate with more informal help seeking recommendations and psychosocial beliefs only associate with online help referral.

Conclusion:

This study highlights the importance of causal beliefs in affecting public stigma and help seeking recommendations.
Kindergarteners at Risk for Severe Mathematics Difficulties: Investigating Tipping Points of Core Mathematics Instruction
Authors: Doabler Christian T. , Clarke Ben , Kosty Derek , Maddox Steven A. , Smolkowski Keith , Fien Hank , Baker Scott K. , Kimmel Georgia L.
Published: November 2020

A concerning number of students enter kindergarten facing an intractable variation of mathematics difficulties (MD). This study investigated the impact of an explicit, core kindergarten mathematics program on the mathematical outcomes of kindergartners who demonstrated risk for severe MD at kindergarten entry and examined whether these students improved from a category of high MD risk (i.e., <10th percentile) to a lower risk of MD (i.e., norm-referenced performance at or above the 10th, 20th, 30th, and 40th percentiles) between the fall and spring of kindergarten. Differential response to the program based on the classroom-level proportion of students with severe MD was also explored. A total of 795 kindergarteners with severe MD from 122 classrooms were included in the analyses. Results suggested students with severe MD in treatment classrooms improved from fall to spring at a greater rate than their control peers. Treatment students also demonstrated higher rates of improvement from below the 10th percentile to a performance at or above the 20th, 30th, and 40th percentiles across the school year. No evidence of differential efficacy of the program by the classroom-level proportion of students with severe MD was found. Implications for using explicit mathematics programs to thwart the onset of severe MD among academically vulnerable students are discussed.
Effects of Modulated Emotion and Facial Masking Encounter on Personal Distance
Authors: Sakuma Natsuo , Ikeda Kazunari
Published: November 2020

In this study, we examined the effects of participants’ emotional states on personal space when an approaching person’s face was either masked or unmasked. We used the participants’ uncomfortable stop-distance as our method of measuring personal space. Inducing a positive emotion narrowed perceived personal space, whereas inducing a negative emotion widened personal space. For both positive and negative emotions, the perceived interpersonal distance was shorter when the approaching face was unmasked than masked. There was no interaction effect on personal space between induced affect and masking or unmasking the approaching face. This study might provide insight into interpersonal behavior during a pandemic juncture.
Negotiating Novelty: Constructing the Novel within Scientific Accounts of Epigenetics
Authors: Pickersgill Martyn
Published: November 2020

Epigenetics is regarded by many as a compelling domain of biomedicine. The purported novelty of epigenetics has begun to have various societal ramifications, particularly in relation to processes of responsibilisation. Within sociology, it has stimulated hopeful debate about conceptual rapprochements between the biomedical and social sciences. This article is concerned with how novelty is socially produced and negotiated. The article engages directly with scientists’ talk and writings about epigenetics (as process and field of study). I aim to advance an explicitly sociological analysis about the novelty of epigenetics that underscores its social production rather than an account which participates in its reification. I attend to definitional skirmishes, comparisons with genetics, excitement and intrigue, and considerations of the ethical dimensions of epigenetics. Any assertions that epigenetics is exciting or important should not inadvertently elide reflexive consideration of how such characterisations might be part of the machinery by which they become real.
External Definition or Self-assertion of Separateness: Understanding Muslim Identity in Post-colonial India
Authors: Ahmad Zubair
Published: November 2020

Muslim identity like any other identity is discretely constituted, defined by language, religion, caste, class, sect and numerous other diverse roles. Such an understanding largely seems to have eluded the public philosophy of the post-colonial Indian state and what seems to have remained central to it is their exclusive definition in religious terms and an exclusive emphasis on their religious engagements. This paper looks at this external religious definition of the community and identifies this definition in the ‘top-down’ and ‘bottom-up’ identity construction processes and interprets other important developments which have all compounded to shape a separate Muslim identity in India. It analyses the construction of Muslim identity and attempts to understand the separateness that they have exhibited in post-colonial India. The argument follows that Muslim identity in India has been externally defined with an emphasis on religious aspects and that their separateness remains a quintessential result of this external definition.
Notes from the Field: Effectiveness of Prevention and Control Measures for Imported COVID-19 in Guangming District of Shenzhen
Authors: Chen Xiaoliang , Wang Tieqiang , Zhao Yang , Wu Yunjie , Qie Ranran , Han Minghui , Huang Shengbing , Du Hairong , Yao Wei , Hu Dongsheng
Published: November 2020

Novel coronavirus disease 2019 (COVID-19) was present in most provinces of China after January 2020. We implemented a surveillance and screening strategy that included early detection of laboratory-confirmed COVID-19 cases and people who were exposed to the disease in Guangming District of Shenzhen. Separate targeted treatment and management strategies were applied to confirmed and suspected cases. From January 23 to March 13, 2020, we found 12 suspected cases, and 11 were confirmed as positive. Although eight of the 11 confirmed cases were family-aggregated, they were all imported cases with common exposure, which did not further cause local community transmission, and no medical staff were infected. After February 14, when the last case was confirmed, there were no newly confirmed cases for 28 consecutive days under the strict outbreak control. The targeted and whole-society involved prevention and control measures prevented the spread of the disease in a very short time and provided a strong guarantee for the orderly recovery of returning to work and social activities.
Perspectives on social support among adults with acquired vision impairment
Authors: Bassey Emmanuel , Ellison Caroline
Published: November 2020

This study investigates the implications of acquiring vision impairment later in life on the effect of social support among adults with acquired vision impairment in Nigeria. It further explores the importance of maintaining social contact after vision loss which serves as the structural aspect of social support needed for adaptation to vision loss. A qualitative study using a phenomenological approach was undertaken. Eight adults (18- 59years) were recruited from disability service organizations in Nigeria. Telephone interviews were recorded and transcribed, and thematic analysis was used to analyse the data gathered in this study. Three broad themes were developed from participants’ accounts of their experiences: (1) diminishment in social contact and social support from friends, romantic partners, and others; (2) negative changes in social support at workplace; and (3) increased social support from family members. The findings indicate that participants experienced diminished social contact and negative social support from friends, colleagues, and employers at the workplace. However, participants experienced increased social contact and positive social support from family members in the form of tangible and effective support. As social connectedness are highly valued in Nigeria’s diverse society, we suggest that adults with acquired vision impairment would significantly benefit from support services that would assist these individuals to build and maintain their social contact or networks providing a platform for positive social support.
Sociality of hate: The transmission of victimization of LGBT+ people through social media
Authors: Pickles James
Published: November 2020

Hate crimes carry many emotional and psychological detriments for those who are targeted because of who they are. The harms associated with hate are commonly theorized in the context of those directly targeted. Using a victimological lens, I consider how the harms of a mass anti-LGBT+ shooting in Orlando, Florida were carried across social media, indirectly victimizing LGBT+ people in the North East of England. This article examines seven distinct interviews conducted post-Orlando from a wider sample of 32. LGBT+ participants were victimized vicariously by receiving news of the Orlando shooting. They utilized social media to organize vigils, stand in solidarity with LGBT+ Floridians, and share in the emotional distress caused by the shooting. The findings contribute to our understandings of hate crime as a communicative tool, by examining the role of social media in carrying the emotional harms associated with hate. Through these in-depth narratives, this article encourages a conversation about how hate crimes, transmitted across social media, can victimize people who share the victimized identity with the direct victims.
Prevalence, associated factors and cardiocerebral vascular prognosis of anaemia among patients on chronic haemodialysis in South Guangdong, China
Authors: Liang Mengjun , Wu Yong , Su Ning , Liu Ying , Lin Weiping , Li Siyi , Zhong Weiqiang , Jiang Zongpei
Published: November 2020

Objective

To assess the prevalence, associated factors and cardiocerebral vascular prognosis of anaemia in patients undergoing haemodialysis.

Methods

This multicentre, retrospective, observational cohort study included patients on maintenance haemodialysis in South Guangdong, China. Anaemia in haemodialysis was defined as haemoglobin (Hb) <90 g/l. A proportion of patients were enrolled in a follow-up of the cardiocerebral vascular prognosis.

Results

A total of 1161 patients were enrolled and 938 were followed-up for cardiocerebral vascular events. Of 1161 patients, 250 (21.5%) had anaemia and 524 (45.1%) had an Hb level of 100–120 g/l. Adjusted multivariate logistic regression analysis demonstrated that frequency of dialysis ≤ twice weekly, hypoalbuminaemia and use of unfractionated heparin were independent factors associated with anaemia. Kaplan–Meier survival curve analysis for no myocardial infarction was 100%, 100%, 100% and 100% after 3, 6, 9 and 12 months, respectively, in patients with Hb < 90 g/l; compared with 97%, 95%, 93% and 93%, respectively, in patients with Hb ≥ 130 g/l. Adjusted Cox proportional hazards regression demonstrated that Hb ≥ 130 g/l was an independent risk factor for myocardial infarction.

Conclusion

Anaemia is highly prevalent among patients undergoing haemodialysis in South Guangdong and requires careful management.
Changes in perioperative hemoglobin and hematocrit in patients undergoing total knee arthroplasty: a prospective observational study of optimal timing of measurement
Authors: Ke Chenrong , Tian Naifeng , Zhang Xiumeng , Chen Mochuan
Published: November 2020

Objective

This study was performed to depict the patterns of change in the perioperative hemoglobin (Hb) concentration and hematocrit (Hct) and to identify the optimal timing of Hb and Hct measurement in patients undergoing total knee arthroplasty (TKA).

Methods

This prospective observational study involved 302 consecutive patients who underwent TKA. The patients were kept in hospital for 1 full week postoperatively. Hb and Hct measurements were performed preoperatively and on days 1 to 7 postoperatively and then during clinic visits at 1, 3, and 6 months postoperatively.

Results

The Hb concentration and Hct decreased during the first few days postoperatively and reached a nadir on postoperative day 4 and 3, respectively; they then recovered in the following days. Significant differences in the Hb concentration and Hct were detected between the preoperative period and day 1, between days 1 and 2, between days 2 and 3, between day 7 and 1 month, and between 1 and 3 months. A significant difference in the Hct was also detected between 3 and 6 months.

Conclusion

The optimal timing of Hb and Hct measurement is on postoperative day 3 or 4. This timing accurately reflects ongoing hidden blood loss to better guide blood transfusions.
Collision carcinoma of endometrial adenocarcinoma and primary serous fallopian tube carcinoma: a case report
Authors: Pan Yun-Fei , Liao Hai-Hong , Qiu Jian , Jiang Yi-Zhen , Qi Quan , Han Shu-Wen , Zhao Fei-Min , Song Peng-Tao
Published: November 2020

Collision carcinoma is a rare malignancy that generally occurs in cervical, esophageal, pulmonary, and squamous cell cancers. Few studies have been reported involving endometrial adenocarcinoma and fallopian tube carcinoma. We reported the case of a 58-year-old woman who presented because of irregular vaginal bleeding for more than 1 month. Cervical biopsy suggested moderately differentiated cervical adenocarcinoma, and the patient underwent radical hysterectomy under general anesthesia. However, postoperative pathology and immunohistochemical results indicated a collision tumor comprising endometrial adenocarcinoma (grade I) and primary serous fallopian tube carcinoma. According to the treatment principle of multiple primary tumors, a regimen of paclitaxel combined with carboplatin was administered. The patient also underwent local pelvic radiotherapy to treat lymph node metastasis. One month later, the patient developed brain metastases and died.
Clinical and Pathological Features in Horses With Advanced Arytenoid Chondritis
Authors: Bolfa Pompei , Cercone Marta , Dennis Michelle M. , Conan Anne , Grevemeyer Bernard , Ducharme Norm G.
Published: November 2020

Equine arytenoid chondritis causes airway obstruction and abnormal upper airway noise due to a space-occupying lesion(s) and decreased abduction. Our objective was to compare clinical scores and ultrasonographic findings with gross and microscopic lesions of naturally occurring arytenoid chondritis, in order to guide surgical treatment. Seventeen naturally affected horses with advanced/severe chronic arytenoid chondritis and 4 control arytenoid cartilages were evaluated after partial arytenoidectomy. Cartilages were sectioned caudal to the corniculate process and the body of each arytenoid was measured. We assessed total gross area (TA), percentage of viable cartilage (VC), percentage of viable cartilage on the lateral wall, and medial expansion. Retrospectively, the gross lesions were used to suggest 2 preferred surgical management (SM) groups: those requiring partial arytenoidectomy and those amendable to focal medial resection (a conservative SM). TA of horses with arytenoid chondritis was significantly larger than controls ( P = .005), due to a layered lesion composed of cavitation, granulation tissue, fibrosis, inflammation, hemorrhage, and edema, with relatively equal medial and lateral expansion that distorted the geometry of the affected cartilage. The increased TA paralleled the presence of immature cartilage with disorganized primitive mesenchymal cells. TA and SM were positively correlated ( P = .01). All cases showed varying degrees of cartilage degeneration or necrosis, more severe medially; those appearing amenable to focal medial resection arytenoid group had significantly more viable cartilage on the lateral wall ( P = .02). The gross and histopathologic findings suggest a new surgical approach—focal medial resection—that may save the lateral wall of the arytenoid.
Pottery Clay: An Aid to Stabilize the Metal Components During Soldering
Authors: Ram RSVM Raghu , Ranganayakulu I , Viswanadh K Anand
Published: November 2020

Lack of stabilization of metal components during soldering is the most common problem encountered in orthodontic lab work. Metal components tend to slip or change from their actual position during soldering. This article provides a simple tip for easy and steady positioning of metal components during the soldering procedure using pottery clay.
Use of Shared Automated Vehicles for First-Mile Last-Mile Service: Micro-Simulation of Rail-Transit Connections in Austin, Texas
Authors: Huang Yantao , Kockelman Kara M. , Garikapati Venu , Zhu Lei , Young Stanley
Published: November 2020

Shared fleets of fully automated vehicles (SAVs) coupled with real-time ride-sharing to and from transit stations are of interest to cities and nations in delivering more sustainable transportation systems. By providing first-mile last-mile (FMLM) connections to key transit stations, SAVs can replace walk-to-transit, drive-to-transit, and drive-only trips. Using the SUMO (Simulation of Urban MObility) toolkit, this paper examines mode splits, wait times, and other system features by micro-simulating two fleets of SAVs providing an FMLM ride-sharing service to 10% of central Austin’s trip-makers near five light-rail transit stations. These trips either start or end within two geofenced areas (called automated mobility districts [AMDs]), and travel time and wait time feedbacks affect mode choices. With rail service headways of 15 min, and 15 SAVs serving FMLM connections to and from each AMD, simulations predict that 3.7% of the person-trip-making will shift from driving alone to transit use in a 3 mi × 6 mi central Austin area. During a 3-h morning peak, 30 SAVs serve about 10 person-trips each (to or from the stations), with 3.4 min average wait time for SAVs, and an average vehicle occupancy of 0.74 persons (per SAV mile-traveled), as a result of empty SAV driving between riders. Sensitivity analysis of transit headways (from 5 to 20 min) and fleet sizes (from 5 to 20 vehicles in each AMD) shows an increase in FMLM mode share with more frequent transit service and larger fleet size, but total travel time served as the biggest determinant in trip-makers’ mode share.
Three Contrasting Pairs’ Collaborative Programming Processes in China’s Secondary Education
Authors: Sun Dan , Ouyang Fan , Li Yan , Chen Hongyu
Published: November 2020

Pair programming is a collaborative learning mode to foster novice learners’ computer programming. Previous empirical research has reported contrasting conclusions about the effect of pair programming on student learning. To further understand students’ pair programming, this study uses a mixed method to analyze three contrasting pairs’ collaborative behaviors, discourses, and perceptions from a multi-dimensional perspective. The analysis results show that the high-ranked student pair is characterized as the interactive, socially-supportive, and goal-oriented pair; the middle-ranked student pair is characterized as the highly-interactive, socially-supportive, and process-oriented pair; and the low-ranked student pair is characterized as the lowly-interactive, socially-unsupportive, and programming-distracted pair. The research reveals complex relations between collaborative behaviors, discourses, and performances, which have critical influences on students’ pair programming quality. Based on the results, this research proposes pedagogical, analytical, and theoretical implications for future instructional design, learning analytics, and empirical research of collaborative programming.
Psychosocial and Trauma-Related Stress and Risk of Dementia: A Meta-Analytic Systematic Review of Longitudinal Studies
Authors: Bougea Anastasia , Anagnostouli Maria , Angelopoulou Efthalia , Spanou Ioanna , Chrousos George
Published: November 2020

Stress has deleterious effects on brain health and yet, the prognostic value of psychosocial stress regarding the most common types of dementias, including Alzheimer disease, is still unclear. The primary aim of this systematic review was to explore the association between psychosocial stress and late onset dementia. We classified 24articles from Medline, PsycINFO, CINAHL, and Web of Science, as pertaining toxic categories of psychosocial and trauma-related stress (low socio-economic status [SES] related inequalities, marital status, posttraumatic stress disorder, work stress, “vital exhaustion” [VE], and, combined stressors). Using the Quality of Prognosis Studies in Systematic Reviews tool, we judged the quality of evidence to be low. This systematic review provided some non-robust, yet suggestive evidence that the above psychosocial types of stress are associated with increased risk of dementia in later life. Future robust, longitudinal studies with repeated validated measures of psychosocial stress and dementiaare required to strengthen or refute these findings.
An investigation on formation of burrs during milling of aluminium alloy under wet condition
Authors: Mandal Raj Sekhar , Das Santanu , Saha Partha Pratim
Published: November 2020

Undesirable burrs are created out of a machining process. The objective of the present work is to explore the suitable condition to obtain no burr, or negligible burr, around the edge of a machined product at wet condition. Face milling experiments have been carried out on blocks made of aluminum alloy (Alloy-4600M) with a single, coated-carbide inserted cutter for observing the nature of burr formation. Depth of cut has been maintained constant at 3 mm for all sets of experiments. In each experiment set, three cutting velocities (170 m/min, 237 m/min and 339 m/min) and three in-plane exit angles of 30°, 60° and 90° are provided at three different feeds of 0.08 mm/tooth, 0.1 mm/tooth and 0.12 mm/tooth. First set of experiments are done without any exit edge bevel. Similar sets of experiments are carried out with 15° and 30° exit edge bevel angles to find out the condition for minimum burr. The bevel is made of a height of 3 mm. In the present experimental investigation, a minimum burr height of as low as 3 micron is obtained at an in-plane exit angle of 30° and exit edge bevel angle of 15° under the machining condition of 339 m/min cutting velocity and 0.1 mm/tooth feed.
A Developmental-Science Perspective on Social Inequality
Authors: Elenbaas Laura , Rizzo Michael T. , Killen Melanie
Published: November 2020

Many people believe in equality of opportunity but overlook and minimize the structural factors that shape social inequalities in the United States and around the world, such as systematic exclusion (e.g., educational, occupational) based on group membership (e.g., gender, race, socioeconomic status). As a result, social inequalities persist and place marginalized social groups at elevated risk for negative emotional, learning, and health outcomes. Where do the beliefs and behaviors that underlie social inequalities originate? Recent evidence from developmental science indicates that an awareness of social inequalities begins in childhood and that children seek to explain the underlying causes of the disparities that they observe and experience. Moreover, children and adolescents show early capacities for understanding and rectifying inequalities when regulating access to resources in peer contexts. Drawing on a social reasoning developmental framework, we synthesize what is currently known about children’s and adolescents’ awareness, beliefs, and behavior concerning social inequalities and highlight promising avenues by which developmental science can help reduce harmful assumptions and foster a more just society.
Experimental investigation, modeling and optimization study on the mechanical properties of B4Cp/MWCNT/epoxy multi-scale hybrid composite
Authors: Taşyürek Mustafa
Published: November 2020

In this study, process parameters and mechanical properties of the multi-scale composite were investigated experimentally and predictably. Multi-scale material includes boron carbide particles and multi walled carbon nanotubes (MWCNTs) in the epoxy-based matrix. Both reinforcements were reinforced into the matrix with various rates simultaneously. Average three tensile strength and hardness values were determined. The tensile strength and hardness were enhanced thanks to high rate of B4C usage up to 54.09% and 2.54%, respectively. The microstructure of the hybrid composite was investigated by Scanning Electron Microscopy. Also, Fourier Transform Infrared Spectroscopy was used to interpret spectral bands. The experimental data were analyzed using optimization method. Optimal process parameters for tensile strength and interfacial properties were determined. The Analysis of Variance (ANOVA) was used to obtain most significant factor and optimum levels of parameters. Finally, it was observed that B4C ratio is the most dominant factor affecting the mechanical and thermal properties.
Effect of Achilles Tendon Lengthening and Gastrocnemius Recession on Radiographic Tibiotalar Motion Following Total Ankle Replacement
Authors: Jeng Clifford L. , Campbell John T. , Maloney Patrick J. , Schon Lew C. , Cerrato Rebecca A.
Published: November 2020

Background:

Surgeons frequently add an Achilles tendon lengthening or gastrocnemius recession to increase dorsiflexion following total ankle replacement. Previous studies have looked at the effects of these procedures on total tibiopedal motion. However, tibiopedal motion includes motion of the midfoot and hindfoot as well as the ankle replacement. The current study examined the effects of Achilles tendon lengthening and gastrocnemius recession on radiographic tibiotalar motion at the level of the prosthesis only.

Methods:

Fifty-four patients with an average of 25 months follow-up after total ankle replacement were divided into 3 groups: (1) patients who underwent Achilles tendon lengthening, (2) patients who had a gastrocnemius recession, (3) patients with no lengthening procedure. Tibiotalar range of motion was measured on lateral dorsiflexion-plantarflexion radiographs using reference lines on the surface of the implants.

Results:

Both Achilles tendon lengthening and gastrocnemius recession significantly increased tibiotalar dorsiflexion when compared to the group without lengthening. However, the total tibiotalar range of motion among the 3 groups was the same. Interestingly, the Achilles tendon lengthening group lost 11.7 degrees of plantarflexion compared to the group without lengthening, which was significant.

Conclusion:

Both Achilles tendon lengthening and gastrocnemius recession increased radiographic tibiotalar dorsiflexion following arthroplasty. Achilles tendon lengthening had the unexpected effect of significantly decreasing plantarflexion. Gastrocnemius recession may be a better choice when faced with a tight ankle replacement because it increases dorsiflexion without a compensatory loss of plantarflexion.

Level of Evidence:

Level III, retrospective comparative study.
How human activity impacted manufacturing non-compliances: A multivariate analysis in a centralized cytotoxic preparation unit
Authors: Cornet Lucie , Gervaise Caroline , Hugues Marion , Menguy Sandrine , Macé Agnès , Tinquaut Fabien , Forges Fabien , Simoens Xavier
Published: November 2020

Introduction

The aim of the study was to identify risk factors related to human errors in the preparation of anticancer drugs in order to improve the pharmaceutical process by setting corrective actions.

Method

Risk factors which could increase the probability of error were identified: daily workload, workload on the previous day and subcontractors’ workload, time slot of the preparation, understaffing, incidents which could affect workflow, individual experience of technicians and cleanrooms layout. Drug reconstitution or complex fabrications were also considered as risk factors. We used univariate and multivariate logistic regression analyses to screen for correlation between risks and errors.

Result

Among 11 278 preparations analyzed, 115 were non-compliant. Univariate analysis shows significant variables: individual experience of technicians, technicians working in the same cleanrooms and technicians’ rotations. 2 technicians are significantly associated with a higher risk of error and 5 with a lower risk. The multivariate analysis confirmed the conclusions of the univariate.

Discussion

As expected, time slot of the manufacture, cleanrooms layout and some technicians increase the risk of error. Surprisingly, technicians’ experience led to increase the risk. This study is a first approach to evaluate the human error aspect in non-compliant preparations, in order to optimize security of antineoplastic drugs preparations.
Solution to bending problem of trapezoid composite laminates
Authors: Cui Da , Li Daokui , Zhou Shiming , Zhou Anfeng , Zhou Xuan
Published: November 2020

The optimized design of composite adaptive structures puts forward higher requirements and challenges to the actual configuration of the structural section. In this paper, a trapezoidal laminate model of composite materials is established. Based on the classical laminates theory, the bending problem of trapezoidal laminates is solved by using the Kantorovich method and the principle of minimum potential energy. The analytic form of the solution is found to satisfy the Euler equation and displacement boundary conditions. Taking the wing of a jet transport aircraft as an example, the accuracy of the analytical solution is verified by the finite element method. The Differential Evolution algorithm is used to realize the multi-objective optimal design of the bending–twisting coupled trapezoidal laminates, and the hygrothermal stability of laminates is verified by the finite element method. Finally, based on the Monte Carlo method, the robustness analysis of the bending–twisting coupling effect of laminate is realized; meanwhile the feasibility and reliability of the design scheme are verified. The stress and strain functions at each point of the trapezoidal laminate can be further obtained by the analytical solution, making it more convenient to analyze the stresses and calculate the static forces of the trapezoidal laminate and its composite structures, which is of great significance to effectively improve the comprehensive mechanical properties of the cross-section structure of composite materials.
Safety Assessment of Polyaminopropyl Biguanide (Polyhexamethylene Biguanide Hydrochloride) as Used in Cosmetics
Authors: Johnson Wilbur , Boyer Ivan , Zhu Jinqiu , Bergfeld Wilma F. , Belsito Donald V. , Hill Ronald A. , Klaassen Curtis D. , Liebler Daniel C. , Marks James G. , Shank Ronald C. , Slaga Thomas J. , Snyder Paul W. , Heldreth Bart
Published: November 2020

The Expert Panel for Cosmetic Ingredient Safety (Panel) reviewed the safety of Polyaminopropyl Biguanide (polyhexamethylene biguanide hydrochloride), which functions as a preservative in cosmetic products. The Panel reviewed relevant data relating to the safety of this ingredient and concluded that Polyaminopropyl Biguanide is safe in cosmetics in the present practices of use and concentration described in the safety assessment, when formulated to be nonirritating and nonsensitizing, which may be based on a quantitative risk assessment or other accepted methodologies. The Panel also concluded that the data are insufficient to determine the safety of Polyaminopropyl Biguanide in products that may be incidentally inhaled.