bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of Arthroscopic versus Open Surgery on External Snapping Hip Caused by Gluteal Muscle Contracture
Authors: Dai Zhu , Chen Zhiwei , Liao Ying , Tang Zhengwu , Cui Juncheng
Published: October 2017

Purpose

To compare the outcomes of contracture release by arthroscopic versus open surgical approach in patients with external snapping hip (ESH) caused by gluteal muscle contracture (GMC).

Methods

Medical records of patients with ESH due to GMC who underwent open surgery (n = 44) or arthroscopic surgery (n = 48) between October 2008 and October 2014 were reviewed. Patients were followed up at 1, 3, 12, and 24 months postoperatively. Operation time, incision length, postoperative pain, postoperative complication rate, and recurrence rate were compared between the 2 groups. Hip adduction, and Harris Hip Scores (HHS) at 1 and 2 years postoperatively were compared between the groups and with preoperative data.

Results

Mean operation time did not differ between the 2 groups (p>0.05). The arthroscopic surgery group had smaller incisions (p<0.05), less postoperative pain (p<0.05), lower complication rates (p<0.05) than did the open surgery group. The recurrence rates were similar for the 2 groups (p>0.05). Hip adduction, and HHS 1 year and 2 years postoperatively were significantly better postoperatively than they had been preoperatively for both groups (all p<0.01), and were similar for the 2 groups (all p>0.05).

Conclusions

Arthroscopic release of contracture tissue is a safe and effective approach for the treatment of ESH caused by GMC, with the advantages of small scars, less postoperative pain, fewer complications compared with open surgery.
Large fresh osteochondral allografts for the hip: growing the evidence
Authors: Oladeji Lasun O , Cook James L , Stannard James P , Crist Brett D
Published: October 2017

Introduction:

Articular cartilage lesions of the hip are difficult to effectively treat. Osteochondral allograft (OCA) transplantation in the knee has been associated with long-term success, but OCA for the hip has not been extensively studied. Here, we present the clinical and radiological outcomes from a cohort of 10 patients treated with fresh OCA transplants for large osteochondral defects of the femoral head and/or acetabulum.

Methods:

10 patients who had undergone osteochondral allograft transplantation of the femoral head and/or acetabulum at our institution between 2013 and 2016 were identified from our Institutional Review Board-approved registry. Hip disability and Osteoarthritis Outcome Score (HOOS) was used to track patient progress.

Results:

10 patients with an average clinical follow-up of 1.4 years were included in this study. 4 patients were treated solely with OCA plugs for femoral head defects, while the remaining 6 received femoral OCA plugs and at least 1 concomitant procedure for additional intraarticular pathology. 7 patients (70%) had successful functional outcomes, while 3 (30%) had unsuccessful outcomes and were subsequently converted to total hip arthroplasty (THA) 5 to 29 months after OCA.

Conclusions:

OCA transplantation can be an effective treatment strategy for young, healthy individuals with articular cartilage lesions of the hip. Smoking, avascular necrosis aetiology, acetabular involvement and concomitant procedures may be risk factors for unsuccessful outcomes necessitating salvage with THA. Long-term clinical studies to refine indications and determine functional outcomes and survival rates are warranted.
Soft tissue reinforcement with a Leeds-Keio artificial ligament in revision surgery for dislocated total hip arthroplasty
Authors: Aota Shigeo , Kikuchi Shin-ichi , Ohashi Hironori , Kitano Naoko , Hakozaki Michiyuki , Konno Shin-ichi
Published: October 2017

Introduction:

Since dislocation after total hip arthroplasty (THA) greatly diminishes patient’s quality of life, the THA frequently needs revision. However, it is common for the dislocation not to heal even after reconstruction, but rather to become intractable.

Methods:

The 17 patients with dislocated THA, mean age of 71 years (range 51-87 years), who underwent a revision THA together with soft tissue reinforcement with a Leeds-Keio (LK) ligament were enrolled. The purposes of reinforcement with LK ligament were to restrict the internal rotation of the hip joint, and to encourage the formation of fibrous tissue in the posterior acetabular wall to stabilise the femoral head. We determined the success rate of surgical treatment for dislocation, the Harris Hip Score (HHS), a factor of recurrent dislocation.

Results:

There was no recurrent dislocation in 82% of the cases (14 joints) during the mean postoperative follow-up period of 63.5 months (15-96 months). The HHS was 82 ± 18 points preoperatively and 82 ± 14 points postoperatively. Recurrent dislocation after this surgical procedure occurred in 2 hips with breakage of the LK ligaments, and intracapsular dislocation in 1 hip with loosening of the LK ligament.

Conclusions:

Although the risk of recurrent dislocation still exists with this procedure, when performed to provide reinforcement with an LK ligament for dislocated THA it may be useful in intractable cases with soft tissue defects around the hip joint.
Arthroscopic treatment of psoas abscess concurrent with septic arthritis of the hip joint
Authors: Kim Chul-Ho , Aditya Kekatpure , Lee Soong-Joon , Kim Hyo-June , Yoon Kang-Sup , Kim Hee-Joong , Yoon Pil-Whan
Published: October 2017

Purpose:

To describe the outcomes of 7 cases of psoas abscess concurrent with septic arthritis of the hip treated by hip arthroscopy alone.

Methods:

We retrospectively collected the data of patients who underwent arthroscopic drainage of psoas abscess concurrent with septic arthritis of the hip. Arthroscopic debridement was performed in both the central and peripheral hip joint compartments. In all cases, the iliopsoas compartment was accessed from the peripheral compartment through an anterior capsulotomy without limb traction. After debridement and drainage of the iliopsoas compartment, a suction drain tube was placed in the iliopsoas compartment through an enlarged anterior capsulotomy and another tube in the peripheral compartment. Postoperative intravenous antibiotics were administered on the basis of culture results; in cases with no positive culture, empirical antibiotics were administered for 4 to 6 weeks after surgery.

Results:

7 patients underwent arthroscopic debridement and drainage for a psoas abscess concurrent with hip joint septic arthritis. Laboratory tests were normalized within 4 weeks after hip arthroscopy in all patients. At a median follow-up of 16 months (range, 13-30 months) after surgery, infection recurrence was absent in all patients.

Conclusions:

Arthroscopic debridement alone could be an effective treatment alternative to open surgery for psoas abscess concurrent with hip joint septic arthritis.
Hydroxyapatite decreases cytotoxicity of a glass ionomer cement by calcium fluoride uptake in vitro
Authors: Del Angel-Mosqueda Casiano , Hernandez-Delgadillo Rene , Rodríguez-Luis Osvelia E. , Ramírez-Rodríguez María T. , Munguía-Moreno Silvia , Zavala-Alonso Norma V. , Solís-Soto Juan M. , Nakagoshi-Cepeda María A. A. , Sánchez-Nájera Rosa I. , Nakagoshi-Cepeda Sergio E. , Cabral-Romero Claudio
Published: October 2017

Background:

Glass ionomer cements (GICs) are widely used in dentistry because of their remineralizing and cariostatic potential induced by fluoride. In vitro studies have reported cell toxicity triggered by GICs; however, the influence of hydroxyapatite (HAp) must be considered. The aim of this study was to evaluate the effect of HAp in decreasing the cytotoxicity of the GIC 3M Vitrebond in vitro.

Methods:

Samples of 3M Vitrebond (powder, liquid and light-cured) were incubated in Dulbecco’s modified Eagle’s medium–Ham’s F12 (DMEM-F12) for 24 hours at 37°C. Subsequently, the light-cured medium was treated with 100 mg/mL of HAp overnight. Toxicity of conditioned media diluted 1:2, 1:4, 1:8 and 1:20 was analyzed on human gingival fibroblasts (HGFs) using light microscopy and the fluorometric microculture cytotoxicity assay. The amounts of calcium fluoride (CaF2) were determined by the alizarin red S method.

Results:

The exposure of HGFs to light-cured induced cell death and morphological changes such as chromatin condensation, pyknotic nuclei and cytoplasmic modifications. Exposure to light-cured treated with HAp, significantly increased cell viability leading to mostly spindle-shaped cells (p<0.001). The concentration of CaF2 released by the light-cured was 200 ppm, although, in the light-cured/HAp conditioned medium, this quantity decreased to 88 ppm (p<0.01).

Conclusions:

These data suggest that HAp plays a protective role, decreasing the cytotoxic effect of 3M Vitrebond induced by CaF2.
Randomized feasibility trial of the Scleroderma Patient-centered Intervention Network hand exercise program (SPIN-HAND): Study protocol
Authors: Carrier Marie-Eve , Kwakkenbos Linda , Boutron Isabelle , Welling Joep , Sauve Maureen , van den Ende Cornelia , Schouffoer Anne A. , Hudson Marie , Thombs Brett D. , Mouthon Luc ,   SPIN Investigators*
Published: October 2017

Background:

Significant functional impairment of the hands is nearly universal in systemic sclerosis (SSc, scleroderma). Hand exercises may improve hand function, but developing, testing and disseminating rehabilitation interventions in SSc is challenging. The Scleroderma Patient-centered Intervention Network (SPIN) was established to address this issue and has developed an online hand exercise program to improve hand function for SSc patients (SPIN-HAND). The aim of the proposed feasibility trial is to evaluate the feasibility of conducting a full-scale randomized controlled trial (RCT) of the SPIN-HAND intervention.

Design and methods:

The SPIN-HAND feasibility trial will be conducted via the SPIN Cohort. The SPIN Cohort was developed as a framework for embedded pragmatic trials using the cohort multiple RCT design. In total, 40 English-speaking SPIN Cohort participants with at least mild hand function limitations (Cochin Hand Function Scale ≥3) and an indicated interest in using an online hand-exercise intervention will be randomized with a 1:1 ratio to be offered to use the SPIN-HAND program or usual care for 3 months. The primary aim is to evaluate the trial implementation processes, required resources and management, scientific aspects, and participant acceptability and usage of the SPIN-HAND program.

Discussion:

The SPIN-HAND exercise program is a self-help tool that may improve hand function in patients with SSc. The SPIN-HAND feasibility trial will ensure that trial methodology is robust, feasible, and consistent with trial participant expectations. The results will guide adjustments that need to be implemented before undertaking a full-scale RCT of the SPIN-HAND program.

Trial registration:

ClinicalTrials.gov Identifier: NCT03092024.
Determinação experimental em túnel de vento dos efeitos estáticos de proteção causados por edificações vizinhas
Authors: Alberti Franco Augusto , Loredo Souza Acir Mércio
Published: October 2017

Efeitos de interferência aerodinâmica por vizinhança ocorrem inevitavelmente em edificações imersas em centros urbanos. Com base nas características da vizinhança que envolvem o entorno de uma edificação, estes efeitos podem reduzir ou majorar as ações do vento sobre a mesma. Tendo em vista a complexidade do problema em estimar o real ambiente em que um edifício está situado e consequentemente a influência da vizinhança no comportamento do vento, torna-se muito difícil a codificação destes efeitos em documentos normativos específicos para cada situação de projeto. Neste trabalho são analisados quatro modelos reduzidos de edifícios e suas vizinhanças adjacentes. Os modelos foram testados em túnel de vento, no Laboratório de Aerodinâmica das Construções da Universidade Federal do Rio Grande do Sul, sob duas configurações de ensaios, uma com a edificação de projeto isolada e outra na presença da vizinhança na qual estará imersa. A partir dos resultados obtidos no túnel, foram calculados coeficientes de força para cada modelo em relação a dois eixos ortogonais com origem próxima ao centro de torção da secção transversal correspondente ao pavimento tipo dos modelos. Nos quatro casos estudados, todos apresentaram variações significativas dos coeficientes de força quando na presença de edificações vizinhas. Para estes edifícios, foram calculados fatores de vizinhança respectivos aos ângulos de vento mais influentes ao dimensionamento estrutural dos mesmos. Notou-se que, sob vizinhança densa, houve uma grande redução das ações do vento, enquanto que brechas entre as estruturas de interferência, conduziram ao aumento das ações do vento sobre as edificações estudadas. O trabalho apresenta diversos valores de fatores de vizinhança para os casos estudados.
An experimental result coming from Neutrino research gives for all particles the ratio (si /mi) defined by Quantum Inertial theory in conjunction with the Micro-quanta paradigm
Authors: Michelini Maurizio
Published: October 2017

Rejecting some old misconceptions (such as the “pulling” gravitation that ravaged classical physics) the Inertial-Gravitational theory supported by the Micro-quanta paradigm incorporates both the relativistic concepts of Mass - Momentum - Energy and the quantic Inertial Model of the particle mass. The flux of micro-quanta supports primarily the physical interaction that generates the Inertial forces defined by Newton. Scholars believing that Inertial forces originate from the properties of the empty space, do not pertain to the community of physicists believing on Newton’s Inertial Law. This great ancient physicist admitted he was unable to explicit the physical nature of his Law of Inertia (“Hypotheses non fingo”). However, marking the difference between “empty” and “absolute” space, he remained in his conviction that some unknown physical reality originates (in the absolute space) the inertial forces upon accelerated masses. At present, Micro-quanta paradigm describes the quantic objects that generate through collisions the physical inertial forces on particles. Since the flux of micro-quanta fills all space, there is no need to refer these collisions to some external System of reference. The relative velocity between quanta and particles comes out from the momentum that micro-quanta confer to particles. By this reason the Micro-quanta paradigm defines on pure dynamical bases the relativistic formalism that Special relativity derived from kinematics, so creating flaws that produced the well known paradoxes. To reveal the micro-quanta it's not necessary to devise particular experiments. The technique of the accelerometers has given many evidences of the physical reality guessed by Newton to explain inertial forces exerted on masses. Since the action of micro-quanta is always manifested in statistical terms, classical and relativistic physics allowed to describe Inertia and Gravitation without knowing the quantic nature of these phenomena. The micro-quanta Paradigm shows in particular the proportionality between cross section and mass (ratio Au) of all particles colliding with micro-quanta. To the aim of calculating the transmission across matter of micro-quanta and neutrinos (which show the same nature) the only unknown quantity is the numerical value of the ratio Au. Recalling that micro-quanta flux fills all space, it appears also interesting to search about neutrino collisions with micro-quanta flux as possible cause of the oscillations phenomena that occur during neutrino travels across the (so called) astronomic “empty” space. A quantitative indication on the ratio Ao is found in this paper from an experimental measurement of the solar neutrino flux interacting with the Earth mass in the course of the Borexino research carried out at Gran Sasso National Laboratory.
Trait Based Assessment on Teaching Writing Skill for EFL Learners
Authors: Asrobi Maman , Prasetyaningrum Ari
Published: October 2017

This study was conducted in order to investigate the effectiveness of trait based assessment on teaching writing skill for EFL learners. Designed as pre-experimental study with one group pretest and posttest design, it examined 20 students of the second semester of English Department of Hamzanwadi University in the academic year 2016/ 2017 as the samples. Purposive sampling technique was used in determining the samples. Writing test and analytical scoring rubric were the instruments used to collect the data. Then the data were analyzed by using descriptive statistics and paired sample t-test to test the hypothesis. The result of descriptive statistics analysis revealed that trait based assessment is effective on teaching writing skill for EFL learners since the mean score of posttest 60 was higher than mean score of pretest 28.20. While for hypothesis testing by using paired sample t-test at significance (2-tailed) value level was .000, it was lower than .05. Therefore, it means that the hypothesis of this study was accepted. In other word, trait based assessment was significantly effective in improving students’ writing skill.
The Effect of NaCl on Anther Development in Pistacia vera L.
Authors: Sadeghirad E , Majd A , Iranbakhsh A , Javanshah A
Published: October 2017

Plant growth and development are adversely affected by salinity. In order to study the effects of salinity on male gametophyte development steps in pistachio plant, an experiment was conducted in two areas in Golshan Anar with equal conditions: a control area (A) that was irrigated with fresh water well, and the other area (B) with salty water and EC values 14 dS.m-1 NaCl solution. A sampling of flowers was performed in two areas of Golshan Anar in the spring based on a completely randomized design with three replications. Male gametophyte development steps in pistachio plant were examined using conventional cell histology techniques and light microscopy observations and were then compared with samples subjected to no salinity stress. The results showed that some stages of male gametophyte development: (1) the anther undergoing normal development which is tetrasporangiate, (2) cytokinesis occurring simultaneously with meiosis in the microspore mother cell, the tetrahedral tetrads, (3) microspores being generated after meiosis by microsporogenesis were more or less irregular in shape during the contraction period. Finally, the abnormal shape and structure of the number of cases reviewed in three replicates of pollens studied can be one of the important factors affecting the decrease in the product.
Institutionele leegte: nieuwe bronnen, nieuwe uitdagingen
Authors: van Bueren Ellen , Klievink Bram
Published: October 2017

Challenges and governance in institutional voids – a literature review

Societal and technological developments (such as the digital and energy revolutions) move faster than existing institutions can keep up with. The developments may lead to a metaphorical institutional void, which brings questions about the nature of the void, the changing rules, practices and responsibilities, and about the strategies to deal with the void. The concept has been around for a while but (again) seems relevant to understand current socio-technological innovations and challenges, that also allow us to further conceptualise the institutional void. In this introduction to the issue, we discuss the concept of an institutional void and explore how it is used in various domains of study, including public administration. We argue for how the concept is relevant today and therein also introduce the topics that are discussed in this special issue.
Onbetaalbare huizen en onderbenutte gebieden
Authors: Verheul Wouter Jan
Published: October 2017

Unaffordable housing and underused areas: The institutional void of housing demand through urban transformation

In the Netherlands, as in many other countries, housing supply fails to meet the rapidly increasing housing demand in already densely urbanised areas, contributing to rising housing prices and possibly gentrification. The state and local governments aim to satisfy this demand by densifying urban areas and by transforming urban brownfields and vacant office parks into residential areas, thus containing urban sprawl. However, the private actors needed to redevelop these areas operate according to a different institutional logic and discourse: the market. According to this market logic, urban transform is too expensive, even when partly subsidized, and, to some extent, sprawl is unavoidable to satisfy housing demand. The two different logics fail to deliver the housing needed. Building discourse coalitions is suggested as a possible way out of this deadlocked debate, while government actors might also aim to influence the housing market with novel, market oriented policy instruments.
Crowd-based innovaties: verschuivende verantwoordelijkheden in een institutional void
Authors: Slot Thijs , Cuppen Eefje , Doorn Neelke , Galeano Galvan Maria , Klievink Bram
Published: October 2017

Crowd-based innovations: shifting responsibilities in an institutional void

The crowd increasingly plays a key role in facilitating innovations in a variety of sectors, spurred on by IT-developments and the concomitant increase in connectivity. Initiatives in this direction, captured under the umbrella-term ‘crowd-based innovations’, offer novel opportunities in socio-technical systems by increasing the access, reach and speed of services. At the same time, they signify important challenges because these innovations occur in a context of traditional, well-established institutional and governance structures and practices. This dynamic is captured in the idea of the ‘institutional void’: the tension between traditional structures and (radically) new initiatives. Existing rules, standards and practices are challenged, which raises questions about the safeguarding of public values such as quality, legitimacy, efficiency and governance of crowd-based innovations. This article argues that understanding these tensions requires supplementing empirical research with an explicitly normative dimension to reach thorough and balanced conclusions to facilitate innovation while protecting the valuable elements in existing rules and regulations. Illustrated by a number of short examples, we propose a multidisciplinary research agenda towards formulating appropriate governance structures.
Kartels ontsluierd: heimelijkheid, vertrouwen en sociale inbedding
Authors: Jaspers Jelle David
Published: October 2017

Uncovering cartel conduct: secrecy, trust and social embeddedness. How cartels remain hidden

In this article notions from literature on covert and illegal networks are applied to business cartels. Comparable to most criminal networks, cartel participants need to communicate in order to coordinate their activities, whilst under the risk of getting caught. Previous studies however show cartels can remain hidden from outsiders for long periods of time. Based on an analysis of fourteen Dutch cartel cases, this article addresses the question how cartels can remain hidden from outsiders for long periods of time. The analysis shows cartel participants communicate predominantly centralized and frequent. Moreover, the results show that not concealment but social embeddedness provides a strong explanation for the longevity of secrecy regarding cartels.
The benefits of working on improvisation in a choir for the development of stage competences
Authors: Piech-Sławecka Joanna
Published: October 2017

Improvisation in a choir is a competence that can be developed. It influences musicality and allows for the realization of both unnotated works and compositions including elements of improvisation. Experiences of pedagogues and conductors show that this technique can be applied while working with a choral ensemble and its benefits may comprise the following: improved vocal and interpretational competences, development of choristers’ musical imagination, better cooperation within a group as well as more attentive listening to each other. These qualities translate directly into a set of stage competences in choral performance. Among the discussed problems, there can be found issues regarding selected concepts of teaching improvisation, its outcomes and an impact of that skill on an individual and group development.
Conductor – an artist and a person in the context of "List do artystów" ["A Letter to Artists"] by John Paul II
Authors: Majchrzak Marianna
Published: October 2017

In his List do artystów [Letter to Artists], St. John Paul II formulated a very important concept of the manifestation of personality and spiritual development of an artist through his/her creative act. It would seem really interesting to look at a conductor’s work from that perspective. His/her artistic work is of a specific nature. A conductor is like Pontifex Maximus. One bridges a composer’s work with the audience through his/her person. Conductor’s personality, knowledge, maturity, choices, manner of interpretation and cooperation with an ensemble add particular value. Through art, a conductor affects oneself and influences the people with whom he/she communicates in the process of the development of a work. Does a conductor develop oneself and enrich others? Ancient Greeks coined the notion of kalokagathia, wherein they combined good with beauty. Plato wrote about the power of Good, hidden in the nature of Beauty. And the Pope – an artist and philosopher himself – admonished that through one’s life and actions, a human takes a stance on existence, truth and good.
Report on 6th Harmony Conference (the S.Moniuszko Music Schools in Łódź)
Authors: Ber Dawid
Published: October 2017

Report on 6th Harmony Conference (the S.Moniuszko Music Schools in Łódź)
Performance Characteristics of Body Fluid Cytology Analysis of 344 380 Responses From the College of American Pathologists Interlaboratory Comparison Program in Nongynecologic Cytopathology
Authors: Tabatabai Z. Laura , Nayar Ritu , Souers Rhona J. , Crothers Barbara A. , Davey Diane Davis
Published: October 2017

Context.—

Body fluid cytology is an important diagnostic tool used to identify various conditions. However, an accurate diagnosis in this setting can sometimes be challenging.

Objective.—

To identify the performance characteristics of body fluid cytology by analyzing participant responses from the College of American Pathologists Interlaboratory Comparison Program in Nongynecologic Cytopathology.

Design.—

Participant responses from 5102 slides were analyzed for concordance to the general category (GC) and to the reference diagnosis (RD). Nonlinear mixed models were used to analyze concordance.

Results.—

The overall GC concordance was 95.2%. The GC type, participant type, and preparation type were significantly associated with GC concordance (P < .001). Concordance for malignant cases was higher than it was for benign cases. Cytotechnologists had better GC concordance compared to pathologists. ThinPrep (Hologic, Marlborough, Massachusetts) slides had the highest GC concordance. Participant type, fluid type, preparation type, and participant interpretation were significantly associated with RD concordance (P < .001). Pathologists performed better than cytotechnologists did for RD concordance. Pericardial fluid had the lowest RD concordance, especially for cases with normal or reactive findings. Modified Giemsa–stained slides performed best for lymphoma and hematopoietic malignancy. Small cell carcinoma had the highest GC concordance, and its RD concordance was higher in pleural than in peritoneal fluids. Adenocarcinoma showed the highest concordance rates for both GC and RD.

Conclusions.—

This study illustrates the challenges associated with interpreting body fluid cytology, particularly in pericardial fluid, and the factors that may affect accurate diagnoses. The results also highlight the value of using multiple preparation types in challenging cases.
Immunohistochemistry in Peritoneal Mesothelioma: A Single-Center Experience of 244 Cases
Authors: Tandon Radhika Theresa , Jimenez-Cortez Yuis , Taub Robert , Borczuk Alain C.
Published: October 2017

Context.—

Diagnosis of malignant mesothelioma is more common in the chest than it is in the abdomen. Most published immunohistochemistry data are more applicable to pleural than to peritoneal mesothelioma.

Objective.—

To clarify the practical utility of 17 immunohistochemistry markers in the differential diagnosis of peritoneal mesothelioma with an emphasis on stains for which there is either contradictory information or a paucity of literature.

Design.—

Consultation files of peritoneal mesothelioma diagnoses rendered from 1999 to 2014 were reviewed; 244 cases were identified. The results of immunohistochemistry markers performed were tabulated.

Results.—

Immunohistochemistry markers positive in peritoneal mesothelioma in order of sensitivity were calretinin (244 of 244; 100%), WT1 (205 of 218; 94%), CK5/6 (173 of 194; 89%), mesothelin (132 of 150; 88%), and D2-40 (78 of 97; 80%). Markers used to differentiate carcinoma from mesothelioma showed immunoreactivity in peritoneal mesothelioma: estrogen receptor (2 of 84; 2%), B72.3 (6 of 196; 3%), CK20 (5 of 116; 4%), CD15 (7 of 192; 4%), p63 (3 of 62; 5%), carcinoembryonic antigen (9 of 199; 5%), PAX8 (12 of 191; 6%), progesterone receptor (5 of 71; 7%), Ber-EP4 (17 of 209; 8%), and CD138 (9 of 91; 10%). BAP1 loss, increasingly used in the differential diagnosis of benign versus malignant mesothelial proliferation, occured in 55% (99 of 181) of peritoneal mesothelioma cases.

Conclusions.—

The results support the experience that there is no definitive marker to rule out malignant mesothelioma, including PAX8, estrogen receptor, progesterone receptor, and p63 immunoreactivity. The high rate of immunoreactivity for mesothelin may have a role as a predictive marker for immune targeting. BAP1 loss of 55% in this cohort of peritoneal mesothelioma confirms published observations, and BAP1 retention is seen in a significant proportion of neoplastic cases.
Radiotherapy for Patients With Resected Tumor Deposit–Positive Colorectal Cancer: A Surveillance, Epidemiology, and End Results–Based Population Study
Authors: Chavali Laxmi B. , Llanos Adana A. M. , Yun Jing-Ping , Hill Stephanie M. , Tan Xiang-Lin , Zhang Lanjing
Published: October 2017

Context.—

According to the American Joint Committee on Cancer's Cancer Staging Manual, 7th edition, TNM classification, tumor deposit (TD)–positive colorectal cancers (CRCs) are classified as N1c. The effects of radiotherapy and the effects of the updated American Joint Committee on Cancer 7th edition TNM N1c classification for patients with TD-positive CRC are unclear.

Objective.—

To investigate outcomes of radiotherapy in patients with resected TD-positive CRC.

Design.—

Resected TD-positive CRCs diagnosed from 2010 to 2014 were identified in the Surveillance, Epidemiology, and End Results 18 database. Factors associated with overall survival (OS) and cancer-specific survival (CSS) were investigated using Kaplan-Meier and Cox proportional hazards models.

Results.—

We included 2712 qualified CRC patients, who either underwent adjuvant radiotherapy (n = 187; 6.9%) or received no radiotherapy (n = 2525; 93.1%). Univariate Cox proportional models showed improved CSS among all CRC patients who underwent adjuvant radiotherapy (CSS hazard ratio, 0.73; 95% CI, 0.57–0.95) and among rectal cancer patients when separated by location (hazard ratio, 0.57; 95% CI, 0.40–0.83), although these associations were attenuated in multivariable-adjusted models. There was improved OS among rectal cancer patients (hazard ratio, 0.77; 95% CI, 0.59–0.99). In subgroup analyses, radiotherapy was not associated with OS or CSS in either metastatic or nonmetastatic CRC patients. Instead, N1c category (versus N0) was associated with a worse OS (hazard ratio, 1.43; 95% CI, 1.31–1.57) but was not associated with CSS.

Conclusions.—

Radiotherapy did not independently improve OS among TD-positive CRC patients. In this study, classifying TD positivity as N1c was associated with worse OS than classifying TD positivity as N0. The findings seem to challenge the benefits of radiotherapy and the new N1c classification of TD for TD-positive CRC patients.
Anchoring Students' Metaperspective Discussions of History in Mathematics
Authors: Jankvist Uffe Thomas
Published: October 2017

The article discusses an empirical study on the use of history (as a goal) in mathematics education. A historical module was designed and implemented in a Danish upper secondary class to study how students' discussions of metaperspective issues of the historical development of mathematics may be anchored in the taught and learned subject matter of the module. Based on videos of the implementation (in particular of one focus group of students), students' hand-in essay assignments, mathematical exercises, questionnaires, and follow-up interviews, the question addressed is how such anchoring may be accomplished and/or ensured and in what ways it may occur. Using described theoretical constructs, 4 different levels regarding anchoring of the students' metaperspective discussions are identified (nonanchored, anchored comments, arguments, and discussions).
Intergroup contact and peacebuilding: Promoting youth civic engagement in Northern Ireland
Authors: McKeown Shelley , Taylor Laura K.
Published: October 2017

Focusing on the post-accord generation in Northern Ireland, this study aimed to examine the role of intergroup contact in promoting support for peacebuilding and youth civic engagement. The sample comprised 466 youth (aged 14-15; 51% Catholic, 49% Protestant) who were born after the 1998 Good Friday/Belfast Agreement and therefore represent a ‘post-accord’ generation. Recruited through their schools, youth completed scales on intergroup contact (quality and quantity), support for peacebuilding, and civic engagement. Hypotheses were tested using structural equation modelling and bootstrapped mediation in MPlus. Results found that support for peacebuilding partially mediated the association between higher quality and higher quantity contact and greater civic engagement (volunteering and political participation). Findings demonstrate that youth who are living with the legacy of protracted intergroup conflict can support peacebuilding and engage in constructive behaviours such as civic engagement. By recognising the peacebuilding potential of youth, especially in a post-accord generation, the findings may inform how to promote youth civic engagement and social reconstruction after conflict.
From Wellington to Quebec: Attracting Hollywood and Regulating Cultural Workers
Authors: Choko Maude , Conor Bridget
Published: October 2017

The nature of work arrangements in the film industry and the professional characteristics of cultural workers involved in film production impact the legal qualification of these workers. They highlight the difficult task of classifying actual work arrangements in one specific legal category: either an “employment relationship” or a “contract for services relationship”. If adequate legal frameworks are not in place to capture the reality of those work arrangements properly, the legal qualification may lead to uncertainty detrimental to workers’ access to collective representation. This uncertainty opens the door to work conflicts and contestations of different types. This paper builds a dialogue between two disciplines, legal analysis and cultural labour analysis, by comparing two locally embedded case studies: the “Hobbit Law” in New Zealand and the “SpiderwickCase” in Quebec (Canada).

Firstly, we outline our theoretical and methodological approach, drawing on literature on cultural labour studies as well as legal analysis. Secondly, we compare the legal status of cultural workers and collective representation within each of our cases. Thirdly, we present full accounts of the chronology, conflicts and contestations within our two cases, as well as outlining the legislative outcomes in each. And finally, in comparing these cases, we illustrate the difficulty of legally qualifying these relations, the uncertainty this engenders and the differing impacts these difficulties have had on collective action in each industry. We emphasize that each case, with their vastly differing outcomes, provides evidence of both the inclusion of cultural workers within the boundaries of specific legislation fostering collective representation of artists (in theSpiderwickCase) and the exclusion of cultural workers from the boundaries of labour legislation enabling collective representation of employees (in theHobbitCase). This is telling because these cases both took place in a location attracting Hollywood’s productions and, for both, this power of attraction remains crucial for the local industry. Understanding the impact of local cultural work regulation in the context of major global productions still lacks sustained attention and in this paper, we build a dialogue between our two cases to begin to remedy this.
Winning Conditions of Precarious Workers’ Struggles: A Reflection Based on Case Studies from South Korea
Authors: Lee Byoung-Hoon , Lee Sophia Seung-Yoon
Published: October 2017

In South Korea, many struggles of non-regular workers, who attempted to organize their unions and engage in militant action to protest against employers’ inhumane discrimination and illegal exclusion, have failed to achieve the desired outcomes, due to their vulnerable employment status and their lack of action resources. In this light, our study examines the conditions that lead to victory in precarious workers’ struggles, by focusing on three attributes: internal solidarity with regular workers, external solidarity from labour and civil society groups outside the workplace, and mobilized protest repertoires. Specifically, this study seeks to identify the configurations of these three conditions that produce successful outcomes in precarious workers’ struggles, in terms of bargaining gains and organizational sustainability. We do this by employing fs/QCA modelling to examine 30 major cases of non-regular worker struggles occurring over a 16-year period from 1998 to 2013.

Our analysis presents the finding that the conditional configuration of strong external solidarity, strong internal solidarity, and fewer struggle repertoires constitutes a significant causal path to successful outcomes. This reaffirms the idea that strong solidarity bridging, whether with regular workers that have a different employment status in the segmented workplace, or with labour and civil society groups outside the workplace, is the crucial causal condition for precarious workers to achieve their desired outcomes from struggle. An unexpected finding, however, is that when precarious worker struggles mobilize fewer struggle repertoires, they are likely to achieve the successful outcomes of bargaining and organizational gains. Our study contributes to the theoretical elaboration of labour movement revitalization for the precariat class, by shedding light on the activism of precarious workers, considering that the English-language literature that pays attention to the active role of such atypical workers in staging protests against employers’ inhumane treatments and the neoliberal labour regime is limited.
Quand le droit conforte les stratégies syndicales reproduisant les arrangements institutionnels sources de discrimination systémique
Authors: Yerochewski Carole , Gagné Diane
Published: October 2017

Cet article présente un cas de mobilisation contre les discriminations systémiques envers des travailleuses procurant des services d’assistance aux personnes (en anglais,care-workers), en grande majorité Noires et Haïtiennes, qui occupent des emplois aux normes dégradées dans des agences de placement fournissant du personnel pour un seul organisme parapublic. À l’intersection des mutations en cours dans la gestion de la main-d’oeuvre et de la réorganisation de la prise en charge des services d’assistance aux personnes, ce cas est représentatif de la façon dont se redessinent les frontières de la relation d’emploi. Les travailleuses mobilisées étant syndiquées, il permet aussi d’explorer un éventail d’attitudes syndicales.

Une stratégie syndicale prédomine : elle consiste à défendre ou gérer la négociation collective institutionnalisée. Elle est encouragée par un ensemble d’institutions qui produisent des constructions contradictoires des enjeux d’égalité et du problème des discriminations. Si ces arrangements institutionnels ouvrent une brèche aux « innovations » patronales et confortent l’adoption de stratégies syndicales visant à préserver la relation bilatérale d’emploi, cet article soutient que cette stratégie est aussi symptomatique de la vision moniste avec laquelle les syndicats abordent l’effritement du modèle dominant de la relation d’emploi, en le réduisant aux conflits d’intérêts entre employeurs et travailleurs. Or, cet effritement est aussi le résultat des réorganisations mutuelles et réciproques des différentes formes sociales de division du travail entre classes, sexes et races. Mais en ne s’interrogeant pas sur ce qui a fondé le compromis de la société salariale, soit la minoration ou l’exclusion de groupes de populations de la norme d’emploi à temps plein et permanent, les syndicats accordent la priorité à des stratégies qui participent, comme l’illustre le cas choisi, si ce n’est à la création de normes discriminatoires, du moins, à la légitimation de frontières entre ceux qui ont accès à des emplois de qualité et les autres.
« Ma très chère mère du Canada » : perceptions et représentations des Augustines de l’Hôtel-Dieu de Québec dans la correspondance des Mères de France, XVIIe-XIXe siècles
Authors: Piché Geneviève
Published: October 2017

Lorsque les quatre premières augustines débarquent en Nouvelle-France en 1639, elles se mettent rapidement à l’oeuvre pour ériger le premier monastère-hôpital au nord du Mexique. Dès les tout débuts de leur entreprise, elles savent très bien qu’elles arrivent dans un pays «neuf», où tout est à construire et à façonner. Elles n’en conservent pas moins des liens très étroits avec les Mères de France. Le Monastère de l’Hôtel-Dieu de Québec conserve d’ailleurs dans ses archives une imposante correspondance avec les supérieures françaises de différents monastères, notamment celui de Dieppe – le monastère à l’origine de la fondation canadienne –, mais également ceux de Bayeux, de Vitré, d’Auray et de Caderousse. Ces écrits nous permettent de comprendre comment les Augustines françaises ont perçu la spécificité de leurs consoeurs canadiennes à travers les siècles. Cette microhistoire, partagée d’un continent à l’autre, est jusqu’alors demeurée dans l’ombre au sein de l’historiographie religieuse du Québec. Pourtant, les relations entre les Augustines de la France et du Canada rendent bien compte de la création d’un espace franco-catholique distinct en sol canadien, issu d’un développement socio-historique bien particulier qui témoigne de l’évolution de l’une des communautés religieuses à l’origine de ce pays.
Le sport dans les « territoires de projet » ou les chemins tortueux de la coopération intercommunale
Authors: HONTA Marina
Published: October 2017

Au moment où la France engage une nouvelle réforme territoriale, cet article examine les effets induits par le renforcement de la coopération intercommunale à partir des processus à l’oeuvre dans le domaine sportif. L’analyse, prenant appui sur plusieurs résultats d’études, est centrée sur les acteurs et sur l’usage que ceux-ci peuvent faire de ces changements d’échelle. Il est question d’étudier les modes d’organisation sportive auxquels les changements renvoient. En ce sens, si ces « territoires de projet » que doivent incarner les groupements de communes sont régulièrement appréhendés et présentés comme la « bonne » échelle spatiale de coordination et de régulation de l’action publique sportive, reste que la capacité à la formater et à l’imposer aux autres constitue encore un enjeu considérable.
Accueillir les Gay Games à Paris en 2018 : du projet sportif au projet urbain structurant
Authors: LE BLANC Antoine
Published: October 2017

Paris a été choisie comme ville d’organisation des prochains Gay Games, tournoi organisé par les associations gaies et lesbiennes dans un but d’ouverture de la compétition sportive, à la fois similaire et décalé par rapport à l’esprit olympique. L’aspect associatif et les budgets plus faibles semblent impliquer un moindre impact sur l’aménagement urbain. Pourtant, par l’ampleur du nombre de participants, par la recherche d’ouverture et de visibilité, par la spécificité de l’accueil dans une grande capitale mondiale et par ses effets sur la spatialisation du genre et la norme urbaine, le projet Paris 2018 constitue bien un projet urbain important, voire un véritable projet de ville.
La cosmophanie des réalités géographiques 1
Authors: BERQUE Augustin
Published: October 2017

On interprète ici le « litige » (Streit) que Heidegger voit entre la Terre et le Monde, dans L’Origine de l’oeuvre d’art, comme l’en-tant-que (als) qui fait sortir la substance terrestre de son identité de gisant-dessous (hupokeimenon, subjectum) pour déployer son être vers un prédicat insubstantiel qui est un certain monde – le Monde, pour nous autres dont c’est le monde. Cette assomption du sujet (la Terre) en tant qu’un certain prédicat – un monde, qu’elle ouvre de ce fait même – produit les réalités géographiques. L’oeuvre d’art y joue un rôle d’éclaireur. La science, en revanche, n’a de cesse qu’elle ne saisisse l’identité du sujet (celui du logicien, qui n’est autre que l’objet du physicien). On peut ainsi tracer une triple homologie dans le Streit : il y a litige entre Terre et Monde comme entre science et art, ainsi qu’entre sujet et prédicat, litige qui engendre indéfiniment la mouvante réalité d’un certain milieu.
Relative Source Locations of Continuous Tremor Before and After the Subplinian Events at Shinmoe‐dake, in 2011
Authors: Ichihara M. , Matsumoto S.
Published: October 2017

Volcano monitoring systems are not always ready to resolve signals at the onset of eruptive activity. This study makes use of stations installed later to calibrate the performance of the stations that had been operated before the eruption. Seven stations recorded continuous volcanic tremor before and during the subplinian eruptions of Shinmoe‐dake, Japan, in 2011. We estimated the source locations of the tremor using the amplitude distribution. The stability of the analysis was obtained by careful selection of time windows in which signals from a single source are dominated. The site effects and the regional attenuation factor were evaluated using tremor recorded after the major eruptions by a dense seismic array and a good number of stations. A tremor source changed its depth beneath the crater for 1 week before the major eruption, rising from a depth of a few kilometer to the water layer 3 times, each of which occurred following shallow inflation and minor eruptions. It is interpreted as migration of gas probably with magma, which further transported heat to the water layer and triggered the subplinian eruptions.