bluuebunny/crossref_metadata_2025 huggingface dataset:
Покази до планового хірургічного лікування вагітних при первинному симптомному хронічному захворюванню вен нижніх кінцівок, зовнішніх статевих органів, промежини або в їх поєднанні в умовах короткотермінового перебування в стаціонарі
Authors: Аntonyuk-Кysil V. M. , Dziubanovskyi I. Ya. , Yenikeeva V. M. , Lichner S. I. , Lypnyi V. M. , Semeniuk M. V.
Published: November 2018

Мета роботи: розробити і впровадити суворо індивідуальні показання до безпечного як для матері, так і дитини, ефективного патогенетичного планового хірургічного лікування  вагітних із первинним симптомним хронічним захворюванням вен (ПСХЗВ) в умовах короткотермінового перебування в акушерському стаціонарі (до 72 год за термінологією IAAS).

Матеріали і методи. На базі комунального закладу «Обласний перинатальний центр» Рівненської обласної ради за період з початку  2013р.по перший квартал 2018р.  прооперовано 356 вагітних з ПСХЗВ С2s-C4s,Еp,Аs,p.Pr (basis СЕАР,2002). Показанями до планового оперативного втручання у 246 вагітних (69,1 %) – були наростання явищ хронічної венозної недостатності нижніх кінцівок, зовнішніх статевих органів, промежини не зважаючи на проведену консервативну терапію; у 84 пацієнток (23,6 %) з метою підготовки пологових шляхів до природних пологів при варикозному розширенні вен зовнішніх статевих органів та промежини, для зменшення ризиків кровотеч при можливому розриві варикозних вузлів та звужуючи покази до хірургічних пологів; у 26 хворих (7,3 %)  за їх побажанням зменшення косметичних проблем, які зумовлені варикозним розширенням вен зовнішніх статевих органів і/або  на відкритих частинах нижніх кінцівок. Всім оперованим вагітним виконано дуплексне сканування вен із картографуванням патологічних зон (рефлюкси, варикозні конгломерати), оцінку біофізичного профілю плода (БПП),  кардіотокографію (КТГ), вивчення згортаючої системи крові, кровотік у маткових, пуповинній, середньомозковій артеріях  як до, так і після операції.   

Результати досліджень та їх обговорення. Оперативні втручання виконували  тільки при згоді вагітних, при відсутності протипоказань до оперативного втручання як з боку соматичного,  так і акушерського статусів в умовах акушерського стаціонару. Всі оперативні втручання виконували без премедикації, для знеболення використовували тумесцентну анестезію і хірургічну методику за типом CHIVA при низхідному розвитку ПСХЗВ, а при висхідному – поєднання методик CHIVA і ASVAL. У 100 % вагітних під час оперативного втручання в післяопераційному періоді порушень соматичного статусу, тонусу матки у вагітних, серцебиття плода (дані КТГ, БПП) не зафіксовано. За суб’єктивною оцінкою вагітними, порушень кількості та якості рухів плода не зазначено, і вони у 98 % випадків вказали на позитивний клінічний результат хірургічного втручання. Оперовані у ІІ та на початку ІІІ триместрів у 85 % знаходились протягом 24 год, 10 % – на протягом 48 год в умовах стаціонару, після виписувались під спостереження акушера-гінеколога за місцем проживання, 5 % оперованих в кінці ІІІ триместру залишались в стаціонарі до пологів.
Профілактика та лікування реперфузійного пошкодження тканин при реконструкції артеріального русла аорто-стегно-підколінного сегмента в умовах хронічної критичної ішемії
Authors: Venher I. K. , Kolotilo O. B. , Kostiv S. Ya. , Vaida A. R. , Herasemuk N. I.
Published: November 2018

Мета роботи: покращити результати реконструктивних операцій на аорті та магістральних артеріях в умовах хронічної критичної ішемії нижніх кінцівок.

Матеріали і методи. В роботу включено 56 пацієнтів з облітеруючими ураженнями аорти та артерій нижніх кінцівок із ІІ, ІІІА, ІІІВ, IV ст. хронічної артеріальної недостатності.

Для профілактики і лікування феноменів no-reflow і reflow-paradox на доопераційному періоді здійснювали комплекс запропонованих заходів.

Для діагностики характеру ураження артеріального русла й особливостей гемодинамічних порушень застосовували показники ультразвукової доплерографії, дуплексного сканування, рентгеноконтрастної цифрової ангіографії. Для одержання інформації про зміни капілярного кровотоку і артеріо-венулярного шунтування крові застосовували метод лазерної доплерівської флоурометрії.

Результати дослідження та їх обговорення. За об’ємом реваскуляризації аорто(клубово)-стегно-підколінного сегмента пацієнтів розділили на дві групи. Оперативне втручання в першій групі пацієнтів включало одномоментне аорто-біфеморальне алошунтування (14 спостережень) і однобічне аорто(клубово)-стегнове алошунтування (8 спостережень). Другу групу склали 34 пацієнти, у яких, крім атеросклеротичної оклюзії аорто(клубово)-стегнового, сегмента виявлено стенотично-оклюзивний процес стегно-підколінного сегмента. Динамічний ультразвуковий моніторинг стану гемодинаміки стегно-підколінного сегмента в післяопераційному періоді у хворих другої групи дозволив виявити зниження пікової систолічної швидкості та індексу резистентності, що було показанням до проведення додаткової реконструкції стегно-підколінного сегмента.
Особливості харчової підтримки у хворих на гострий панкреатит (огляд літератури)
Authors: Chooklin S. M. , Chuklin S. S. , Shershen G. V. , Popyk P. M.
Published: November 2018

Харчування є істотною частиною у лікування хворих на гострий панкреатит. Очевидно, у легких та середньої тяжкості випадках нема необхідності застосовувати штучні методи харчування, навпаки, рекомендовано розпочати пероральне приймання їжі. Проте вид харчування і терміни його початку ще обговорюються. Якщо ж стан пацієнта тяжкий, доцільно розпочати ентеральне харчування, яке зменшує ризик приєднання інфекції, тривалість перебування в стаціонарі, смертність. Парентеральне харчування призначають лише, якщо ентеральне неможливе. Однак залишаються дискусійними, який вид харчування застосовувати краще, ефективніший шлях, а також правильний алгоритм дій при цьому. Огляд літератури присвячений розгляду усіх цих питань. Підсумовуючи, можна стверджувати про необхідність проведення більшої кількості досліджень із питання харчування у пацієнтів із гострим панкреатитом.
Systematics of the Gracilariales (Rhodophyta) including new subfamilies, tribes, subgenera, and two new genera, Agarophyton gen. nov. and Crassa gen. nov.
Authors: GURGEL CARLOS FREDERICO D. , NORRIS JAMES N. , SCHMIDT WILLIAM E. , LE HAU NHU , FREDERICQ SUZANNE
Published: November 2018

The Gracilariales is a red macroalgal order and the main global source of the economically important agar, a marine phycocolloid. Independent comparative morphological and molecular phylogenetic studies over the last 20 years have revealed the existence of seven major clades recognizable as distinct genera. Of these major clades only four free-living genera have been widely accepted taxonomically: Curdiea, Melanthalia, Gracilariopsis, and Gracilaria. Three other clades comprise the reinstatement of the genus Hydropuntia and the proposal of two new genera, Agarophyton and Crassa, described herein. Based on new rbcL DNA sequences, and along with a reassessment of published comparative morphological and molecular phylogenetic studies, we argue that the latter three genera represent distinct evolutionary lineages in the Gracilariaceae, and propose a new classification for the order Gracilariales. Our new proposal incorporates the most current understanding of the evolutionary history of the order, establishes a natural and stable classification system, and provides the basis for the recognization of intra-family ranks. Our classification scheme reconciles all molecular phylogenetic studies published to date.
Identification of the new species Comatricha macrospora and two other recently recorded species of Comatricha from China
Authors: ZHANG BO , WANG SAIYU , XU XIAOQI , LI TIANHAO , DAI DAN , LI YU
Published: November 2018

A new species (Comatricha macrospora) has been collected from the Changbai Mountain National Nature Reserve, Jilin Province, China. Comatricha macrospora has smaller sporocarps and larger spores (about 15–18 μm in diameter) than other species of Comatricha as well as a persistent peridium at the base of the sporotheca. In addition, two newly recorded species of Comatricha—C. tenerrima (M.A. Curtis) G. Lister and C. afroalpina Rammeloo—have been documented in China for the first time, based on material collected from northeast China and the campus of East China Normal University, Fuzhou City, Jiangxi Province. Comatricha tenerrima is characterised by fusiform long-stalked sporocarps and warted pinkish brown spores (about 7–8 μm in diameter)., whereas C. afroalpina occurs on rotting logs and has spores marked by larger warts with an irregular reticulation at their base. Descriptions and scanning electron micrographs for these members of the genus Comatricha are provided. Phylogenetic analyses, based on small subunit ribosomal RNA sequences (SSUrRNA) of Comatricha and related genera, were carried out using Bayesian inference. These analyses confirmed the placement of the new species in the genus Comatricha.
Chrysanthemum yantaiense, a rare new species of Asteraceae from China
Authors: CHEN JUN-TONG , ZHONG JIAN , SHI XUE-JUN , ZHANG QI-XIANG , SUN MING
Published: November 2018

In this paper, a rare new species of the genus Chrysanthemum from China, C. yantaiense, is described and illustrated. It appears most closely related to C. indicum, but its characters are quite different in stem habit, leaf, synflorescence, capitula size and chromosome ploidy. The diagnostic characters of the new species were proven in four years of observations in cultivation.
Revision of the genus Theopea Baly (Coleoptera: Chrysomelidae: Galerucinae) of East Asia: species lacking modified clypeus in males and the T. sauteri species group
Authors: LEE CHI-FENG , BEZDĔK JAN
Published: November 2018

Theopea Baly, 1864 species lacking a modified clypeus of East Asia are revised. Theopea aureoviridis Chûjô, 1935, T. collaris Kimoto, 1989, and T. sauteri Chûjô, 1935 are redescribed. Theopea coerulea Gressitt & Kimoto, 1963 is removed from synonymy with T. sauteri Chûjô, 1935. Hoplosaenidea irregularis (Takizawa 1978) and H. kanmiyai Kimoto, 1984 are transferred to Theopea and redescribed. A lectotype is designated for T. aureoviridis Chûjô, 1935. Five new species are described, T. cheni sp. nov. from Taiwan, T. geiseri sp. nov. from Northeast India, T. hainanensis sp. nov. from South China (Hainan Island), T. laosensis sp. nov. from West China, North Laos and Vietnam, and T. sekerkai sp. nov. from Central and South Laos.
Groundwater amphipods (Crustacea, Malacostraca) of India, with description of three new cavernicolous species
Authors: SIDOROV DMITRY , REDDY YENUMULA RANGA , SHAIK SHABUDDIN
Published: November 2018

Stygofaunistic surveys of peninsular India yielded, among others, three new cavernicolous amphipod taxa: Orientogidiella reducta gen. n., sp. n. in the Borra caves of Andhra Pradesh state, Bogidiella hindustanica sp. n. (Bogidiellidae) and Indoniphargus subterraneus sp. n. (Austroniphargidae) in the Kapiladevi caves of Telangana state. The new genus, Orientogidiella gen. n., is proposed to accommodate all the hitherto known species of the Bogidiella indica-group. This paper gives an illustrated description of the three new species together with their taxonomic affinities. A new record of O. indica comb. n., from the Guthikonda caves in Andhra Pradesh is provided as well. The structure of the Indoniphargus mandible is revisited with scanning electron microscopy (SEM) and revealed a poorly known flexible structure on the molar process which could be useful for phylogenetic purposes. The species diversity and geographic distribution of the Indian stygobiotic amphipods are briefly reviewed.
Spatiotemporal Analysis of Near-Miss Violent Tornadoes in the United States
Authors: Hatzis Joshua J. , Koch Jennifer , Brooks Harold E.
Published: November 2018

In the hazards literature, a near-miss is defined as an event that had a nontrivial probability of causing loss of life or property but did not due to chance. Frequent near-misses can desensitize the public to tornado risk and reduce responses to warnings. Violent tornadoes rarely hit densely populated areas, but when they do they can cause substantial loss of life. It is unknown how frequently violent tornadoes narrowly miss a populated area. To address this question, this study looks at the spatial distribution of possible exposures of people to violent tornadoes in the United States. We collected and replicated tornado footprints for all reported U.S. violent tornadoes between 1995 and 2016, across a uniform circular grid, with a radius of 40 km and a resolution of 0.5 km, surrounding the centroid of the original footprint. We then estimated the number of people exposed to each tornado footprint using proportional allocation. We found that violent tornadoes tended to touch down in less populated areas with only 33.1% potentially impacting 5000 persons or more. Hits and near-misses were most common in the Southern Plains and Southeast United States with the highest risk in central Oklahoma and northern Alabama. Knowledge about the location of frequent near-misses can help emergency managers and risk communicators target communities that might be more vulnerable, due to an underestimation of tornado risk, for educational campaigns. By increasing educational efforts in these high-risk areas, it might be possible to improve local knowledge and reduce casualties when violent tornadoes do hit.
A Survey of the Needs of an Urban High School's Community
Authors: Solman Robert T.
Published: November 2018

This project examined the needs of the community of a multicultural urban high school. A survey instrument was designed to find out what the school community thought of the school, and it was intended that the results be used to guide the school's future progress and enable it to increase its rate of student retention in Years 11 and 12. The questionnaire elicited responses to questions concerned with the things the school should do for the students, sought opinions on how the school should develop, and recorded information specific to teachers, parents and members of the local community, and present and past students. The return rates were generally good.

The results of the survey are discussed under the headings of ‘Background Information from Respondents’ and ‘Areas of Community Concern’. An interesting background response was that 70% of present students stated that they wanted to complete Year 12, but only 21% of the past students said that they had stayed on until the end of this final year. The areas of community concern were divided into two categories. For the first, which comprised questions concerned with the responsibilities the school had towards its students, all school community groups recorded very strong support for what was described as basic literacy and numeracy, and for a practical application of the former. Also considered a high priority school task was sex and drug education. The questions in this category on which the school community groups differed generally showed the teachers to be less positive than the parents and students. A striking and important example of this was the teachers’ response to the matter of the school encouraging its students to remain after Year 10. Only 20% of them thought that this was an important or very important job of the school, compared with 66% of the rest of the school community. Consideration of these responses indicated that there was strong demand for the introduction of both a comprehensive literacy and numeracy program, and a sex and drug education program. The low level of teacher support for students staying at school after Year 10 was in sharp contradiction to the stated aims of the Participation and Equity Program, and it indicated a need to change this negative attitude if these aims were to be realized in this and similar schools. For the second category ‘How should your high school develop?’, all school community groups gave relatively strong support for more school-based career relevant courses. This indicated widespread community demand for the introduction of these courses, and their introduction might be expected to reduce the large gap between strong desire of students to complete Year 12 and the reality of a very low rate of retention.
The Teacher as Disciplinarian: How do Students feel?
Authors: Lewis Ramon , Lovegrove Malcolm N.
Published: November 2018

This paper reports two independent investigations of the relationship between Year 9 students’ perceptions of their teachers’ classroom control techniques and the students’ affective responses. The results indicate that a number of commonly used techniques are associated with students’ anxiety and their attitude to their teacher, the miscreant and their schoolwork. Teachers’ reactions to these data indicate a need for concern, particularly as students report being disrupted from their school work by techniques otherwise acceptable to teachers, such as a lack of teacher calmness, teachers sending miscreants to other teachers and the use of class detentions. Despite these findings indicating a need for behavioural change in teachers, such change may be very unlikely, because of stress-related issues.
The Politics of Regionalization in Victoria's Education Department, 1955 to 1979
Authors: Macpherson R. J. S.
Published: November 2018

Recent ethnographic research (Macpherson, 1984) into the realities of three regional directorships in Victoria in the early 1980s stimulated this examination of the influence that politicians and leading educational administrators have had on regionalization policy in earlier decades. Data from that study consistently indicated that politico-historical forces explained much of what later emerged as ‘policy’.

This paper begins with the bureaucratic and political machinations of the late 1950s and 1960s, concerned with regionalism, before relating the establishment and development of regional administration to wider Australian contexts and to assumptions and practices in the Education Department during that period. The descriptive treatment serves to emphasize the status of Victoria's regionalization policy in education between 1955 and 1979 as a political artefact that was largely and reluctantly negotiated among centrally located bureaucrats and politicians.
Values, Motivations, and Intentions to Engage in Proenvironmental Behavior
Authors: van Riper Carena J. , Lum Clinton , Kyle Gerard T. , Wallen Kenneth E. , Absher James , Landon Adam C.
Published: November 2018

Knowledge of the relationships among psychological constructs such as values and motivations that influence proenvironmental behavior provides public land management agencies with guidance on how to minimize stakeholder impacts on the environment. A rich body of research has demonstrated that values form a tripartite structure underlying environmental concern, encompassing biospheric, egoistic, and altruistic values; however, recent work has suggested hedonic values are also an instrumental basis for environmental concern. Few studies have tested this proposition. We contend that hedonic values are instrumental in explaining the psychological processes that gird individual decisions, particularly in nature-based settings where stakeholder decisions are compelled by leisure pursuits. Our results indicate that place-based motivations, particularly escape from the pressures of everyday life, can help close the prominent value–action gap and explain why outdoor recreationists engage in minimum-impact activities specified in the U.S. Leave No Trace educational outreach program.
Temperature control of cryogenic wind tunnel with a modified L1 adaptive output feedback control
Authors: Zhu Rusong , Yin Guofu , Chen Zhenhua , Zhang Shuangxi , Guo Zili
Published: November 2018

Background:

Temperature is one of the main variables need to be regulated in cryogenic wind tunnel to realize the true flight Reynolds number. A new control methodology based on L1 output feedback adaptive control is deployed in the temperature control.

Methods:

This design is composed of three parts: linear quadratic Gaussian baseline control, L1 adaptive control and nonlinear feedforward control. A linear quadratic Gaussian controller is implemented as the baseline controller to provide the basic robustness of temperature control. A L1 output feedback adaptive controller with a modified piecewise constant adaptive law is deployed as an augmentation for the baseline controller to cancel the uncertainties within the actuator’s bandwidth. The modified adaptive law can guarantee better steady-state tracking performance compared with the standard adaptive law. A global nonlinear optimization process is carried out to obtain a suboptimal filter design for the L1 controller to maximize the performance index. The nonlinear feedforward control is to cancel the coupling effects in control of the tunnel.

Results:

With these design techniques, the augmented L1 adaptive controller improves the performance of the baseline controller in the presence of uncertainties of dynamics. The simulation results and analysis demonstrate the effectiveness of the proposed control architecture.

Conclusion:

The modification of adaptive law plus the global nonlinear optimization of the filter in the L1 adaptive control architecture helps the controller achieve good control performance and acceptable robustness for the temperature control over a wide range of operations.
Queue stability and low energy for energy harvesting cognitive radio networks
Authors: Arthi R , Jagapathi Babu V , Aditya TS , Akshay Kumar Y
Published: November 2018

Cognitive radio network explores the framework for energy harvesting and derives effective algorithms such as Nash Equilibrium re-Optimization, Greedy one-slot Game, and Bi Layer re Game. The stability of data queue for energy harvesting cognitive radio network was analyzed by optimization of primary users and noncooperative game of secondary users with Nash equilibrium of stochastic Stackelberg game in a bilevel manner. The proposed work considers the effective data queue stability for secondary user in a cognitive radio network with the necessary conditions such as data arrival, energy arrival, transmission success probability, and expected transmission steady-state delay to make the data queue stable. The queue needs to be stabilized for online algorithm Greedy one-slot Game and offline algorithm Bi Layer re Game. The simulations show the relevance of queue stability by finding the average queue delay and average queue size by comparing both the algorithms.
Promoting the dignity and worth of all people: The privilege of social work
Authors: Henrickson Mark
Published: November 2018

The Dame Eileen Younghusband Lecture is presented every two years at the joint world conferences of international social work. In 2016 it was presented in Seoul and was based on the conference theme ‘promoting the dignity and worth of people’. The lecture includes a review of heroes, legal, political and social successes, and challenges for sexual and gender minorities around the world. It challenges the binary of gender and sexuality. The privilege of social work is to choose either to challenge or to reproduce oppression based on sexuality and gender, and protect the dignity and worth of all peoples.
Delusion in Attribution: Caveats in Using Attribution for Multimedia Budget Allocation
Authors: Danaher Peter J. , van Heerde Harald J.
Published: November 2018

Media attribution is the assignment of a percentage weight to each media touchpoint a consumer is exposed to prior to purchasing. Many firms consider using attribution to allocate media budgets, particularly for digital media, but an important question is whether this is appropriate. An initial hurdle when answering this question is that, despite the surge in interest for media attribution in marketing academia and practice, attribution does not have an agreed-on formal definition. Therefore, this article proposes an attribution formulation based on the relative incremental contribution that each medium makes to a purchase, taking into account advertising carryover and interaction effects. The formulation shows that attribution is proportional to the marginal effectiveness of a medium times its number of exposures. This means that often-used media will have high attribution weights. However, the profit-maximizing allocation for a fixed budget is a function of advertising effectiveness, but not a function of past exposure levels. By offering analytical derivations and studying simulated and empirical data, the paper shows how attribution can offer misleading insights on how to allocate resources across media. Moreover, the empirical example demonstrates that substantial gains in purchase probability can be made using profit-maximizing allocation compared with attribution-based allocation.
Non-invasive evaluation of a liver mass in a patient post splenectomy
Authors: Smolen Bella , Khoury Johad , Baruch Yaacov , Saadi Tarek
Published: November 2018

Introduction

Numerous conditions may cause liver lesions, solitary or multiple, benign or malignant. It can be crucial to establish the correct diagnosis. Splenosis is a rare condition that may result from the spillage of cells from the splenic pulp following abdominal trauma, accidental lesions to the spleen during operation or elective splenectomy. These splenic ‘implants’, which are often multiple, can be located anywhere in the peritoneal cavity, although they are most often found in the left upper quadrant of the abdomen. They may be confused with neoplasms or endometriosis, and may rarely be the cause of small bowel obstruction.

Case presentation

A 35-year-old man presented with a hepatic mass, and malignancy was suspected. After extensive investigation, it was diagnosed as splenosis using Tc-99m-labelled heat-denaturated red blood cells scintigraphy, without the need for liver biopsy. We consider this the most effective method for diagnosing splenosis.

Conclusion

When splenosis is suspected, Tc-99m-labelled heat-denaturated red blood cells scintigraphy can be used to confirm the diagnosis, and may avoid invasive investigation.
Vaping in Context: Links Among E-cigarette Use, Social Status, and Peer Influence for College Students
Authors: Wallace Lacey N. , Roche Michael J.
Published: November 2018

In this study, we examined how the number of friends and leadership among peers related to e-cigarette use and beliefs about the social consequences of use among college students. Data were collected via web survey from 175 university students in 2016. Regression techniques were used to analyze responses. Neither number of friends nor role in a peer group was associated with e-cigarette use. Having more friends who used e-cigarettes was positively associated with being offered an e-cigarette, likelihood of accepting a future offer, and e-cigarette use. Perceived social impact was positively related to frequency of use and likelihood of accepting an offered e-cigarette. Those using e-cigarettes more frequently and those with friends using e-cigarettes perceived e-cigarette use as having a positive social effect.
Teaching Technical Writing to Non-Native Speakers of English
Authors: Parkin Ernest J.
Published: November 2018

Teaching technical writing to non-native speakers of English is complicated by their special needs. Central to the discussion is the idea that expository writing ought to be a key element of any program purporting to teach English. The nature of proper preparatory training is discussed with specific reference to the language groups American trainers are likely to encounter working in the U.S. or abroad. The justification for specific practices is discussed and should enable instructors to develop further strategies for training.

Once the preparatory work is completed, effective technical writing instruction for non-native trainees requires modification of a good program for native speakers. Training is most effective if material is presented in culturally familiar and intellectually compatible ways.
A Comparison of the Scientific Paper and the Problem/Solution Speech
Authors: Fitch Suzanne P.
Published: November 2018

The purpose of this paper is to afford the speech instructor with a knowledge of the scientific paper format and to compare that format with the problem/solution speech pattern used in speech courses.
Temporary employment contracts and employee well-being during and after the financial crisis: Introduction to the special issue
Authors: Guest David E , Isaksson Kerstin
Published: November 2018

Temporary employment has become a feature of the contemporary labour market, although its extent varies considerably across European countries. It is widely assumed that the experience of temporary work is likely to lower worker well-being. However, a major European study in 2005 found that temporary workers reported higher well-being than permanent workers. Since then, the financial crisis of 2008 and the resulting shedding of labour seems likely to have had a damaging effect on the well-being of temporary workers. The introductory article outlines these issues and introduces the subsequent articles in this special issue which explore the well-being and employment security of temporary workers in the aftermath of the financial crisis. In drawing them together, it is noted that temporary workers appear to have fared no worse than permanent workers. Indeed, job insecurity seems to have spread to permanent workers, particularly in the Mediterranean countries, creating a renewed emphasis on the role of employability.
Sheet Space Structure System: Structural Principles and Analysis Method
Authors: Zhao H. L. , Ma J. , Zhao C. Q. , Yang Q.
Published: November 2018

In this paper, the structural principles and the engineering practice about the sheet space structure are summarized. The key problems in structural analysis of the system - strength of the laminated composite plates and stability of the structure are described. The reliability of the analysis is verified by model tests of the structure.
Optimal Design of Pantograph Foldable Structures
Authors: Kaveh A. , Jafarvand A. , Barkhordari M.A.
Published: November 2018

In this paper, scissor-link foldable structures known as pantograph structures are studied. Recursive Quadratic Programming Method is used for optimal design of double layer grids, barrel vaults and antenna types of pantographs and space structures. Examples are provided to show the performance of the approach being employed.
Chlamydia pecorum Infection in the Male Reproductive System of Koalas (Phascolarctos cinereus)
Authors: Palmieri Chiara , Hulse Lyndal , Pagliarani Sara , Larkin Rebecca , Higgins Damien P. , Beagley Kenneth , Johnston Stephen
Published: November 2018

Chlamydiosis is the most documented and serious disease of koalas, characterized by ocular, urinary, and reproductive lesions. Since little attention has been paid to the pathological effects of this infection in the male reproductive system, we aimed to determine the incidence and severity of reproductive pathology associated with chlamydial infection in male koalas submitted to koala hospitals in southeast Queensland. The entire reproductive tract from 62 sexually mature male koalas not suitable for rehabilitation was evaluated and 677 tissue samples were collected for histology, immunohistochemistry (IHC), and real-time polymerase chain reaction (qPCR). Lymphoplasmacytic inflammation was observed in 178 of 677 (26.3%) tissue samples from the upper and lower reproductive tract, mainly in the prostatic, penile, and membranous urethra. IHC was positive for the chlamydial antigen in 19 of 451 normal samples (4.2%) and 46 of 178 samples with inflammation (25.8%), located within the cytoplasm of epithelial cells of the epididymis, vas deferens, prostate, bulbourethral glands, and the prostatic membranous and penile urethra. Chlamydia pecorum was detected via qPCR in 319 of 451 normal samples (70.7%) and 159 of 178 samples with inflammation (89.3%), with the highest incidence in the penile urethra, prostate, membranous urethra, and bulbourethral glands. This study suggests that Chlamydia infection in the male reproductive tract is more widespread than originally thought. Furthermore, the male reproductive tract might be a reservoir for persistent chlamydial infections in koalas, with important implications for prophylactic strategies and epidemiology.
The Pros and Cons of Using the Change in Destination Choice Logsums as a Practical Measure of User Benefits
Authors: Villanueva Kristen , Zorn Lisa , Ory David , Vautin David
Published: November 2018

The Metropolitan Transportation Commission carries out an extensive project performance assessment in support of regional planning efforts. For the 2017 regional transportation plan, various types of potential transportation investments were evaluated against qualitative and quantitative criteria. The quantitative metric was a benefit–cost ratio, in which a project’s expected annual benefits were compared with the project’s expected annualized cost. To quantify user benefits (one component of the total benefit estimate), agency staff used the difference in Project/No Project destination choice logsums generated by the region’s activity-based travel model. The destination choice models include, as covariates, mode choice logsums, which means the change in destination choice logsums estimates the change in consumer surplus across all destinations and all travel modes. This approach has long been advocated for in academia and was applied by the Federal Transit Administration for evaluating transit investments in the 2000s. This is the first time that it has been fully implemented in a large-scale, multi-modal application that informs investment decisions. This paper discusses the pros and cons of using this approach. The pros include consistency between simulated behavioral changes in the travel model and quantification of benefits, which cannot be achieved using typical measures of benefits such as travel time savings, as well as the ability to map changes in access across the region. The cons include issues related to the form and creation of alternatives in the mode choice model and the difficulty in explaining changes in logsums to non-technical audiences.
Effects of Capsular Reconstruction With an Iliotibial Band Allograft on Distractive Stability of the Hip Joint: A Biomechanical Study
Authors: Fagotti Lorenzo , Kemler Bryson R. , Utsunomiya Hajime , Storaci Hunter W. , Krob Joseph J. , Brady Alex W. , Turnbull Travis Lee , Philippon Marc J.
Published: November 2018

Background:

The capsular ligaments and the labral suction seal cooperatively manage distractive stability of the hip. Capsular reconstruction using an iliotibial band (ITB) allograft aims to address capsular insufficiency and iatrogenic instability. However, the extent to which this procedure may restore hip distractive stability after a capsular defect is unknown.

Purpose:

To evaluate the biomechanical effects of capsular reconstruction on distractive stability of the hip joint.

Study Design:

Controlled laboratory study.

Methods:

Eight fresh-frozen cadaveric hip specimens were dissected to the level of the capsule and axially distracted in 3 testing states: intact capsule, partial capsular defect, and capsular reconstruction with an ITB allograft. Each femur was compressed with 500 N of force and then distracted 6 mm relative to the neutral position at 0.5 mm/s. Distractive force was continuously recorded, and the first peak delineating 2 phases of hip distractive stability in the force-displacement curve was analyzed.

Results:

The median force at maximum distraction in the capsular reconstruction state (156 N) was significantly greater than that in the capsular defect state (89 N; P = .036) but not significantly different from that in the intact state (218 N; P = .054). Median values for distractive force at first peak (60 N, 72 N, and 61 N, respectively; P = .607), distraction at first peak (2.3 mm, 2.3 mm, and 2.5 mm, respectively; P = .846), and percentage decrease in distractive force (35%, 78%, and 63%, respectively; P = .072) after the first peak were not significantly different between the intact, defect, and reconstruction states.

Conclusion:

Capsular reconstruction with an ITB allograft significantly increased the force required to distract the hip compared with a capsular defect in a cadaveric model. To our knowledge, this is the first study to report an initial peak distractive force and to propose 2 distinct phases of hip distractive stability.

Clinical Relevance:

The consequences of a capsular defect on distractive stability of the hip may be underappreciated among the orthopaedic community; with that said, capsular reconstruction using an ITB allograft provided significantly increased distractive stability and should be considered an effective treatment option for patients with symptomatic capsular deficiency.
Prognostic Factors for Functional Outcome After Rotator Cuff Repair: A Prospective Cohort Study With 2-Year Follow-up
Authors: Jenssen Kjersti Kaul , Lundgreen Kirsten , Madsen Jan Erik , Kvakestad Rune , Dimmen Sigbjørn
Published: November 2018

Background:

Although shoulder function is reported to be generally good after rotator cuff repair, limited knowledge exists regarding which prognostic factors predict functional outcomes.

Purpose:

To identify pre- and perioperative predictors of functional outcomes after arthroscopic rotator cuff repair.

Study Design:

Case-control study; Level of evidence, 3.

Methods:

A cohort of 733 consecutive patients treated with rotator cuff repair between 2010 and 2014 in a single orthopaedics unit was included. Data were collected prospectively and included pre- and perioperative variables. Univariate and multivariable linear regression analyses were used to predict shoulder function at 2-year follow-up, as measured by the Western Ontario Rotator Cuff Index (WORC).

Results:

In total, 647 (88%) patients were followed for 25 ± 5 months (mean ± SD; range, 17-66 months). In the multivariable regression model, the adjusted R2 was 0.360, indicating that 36% of the variation in the WORC at final follow-up could be explained by this statistical model. The multivariable linear regression analysis revealed that the strongest positive independent predictors of shoulder function at 2 years were preoperative WORC and Constant-Murley score in the contralateral shoulder. The model also indicated that activities of daily living, age, subacromial decompression, and biceps surgery had independent positive associations with better shoulder function at 2 years. In addition, previous surgery in the ipsilateral or contralateral shoulder, smoking, partial rotator cuff repair, preoperative pain, and atrophy in the infraspinatus were all independent factors negatively associated with shoulder function after 2 years. The overall healing rate of complete repairs per magnetic resonance imaging was 80%.

Conclusion:

The most important finding of the present study was that the strongest prognostic factors for better WORC at 2-year follow-up were better preoperative WORC and Constant-Murley score in the contralateral shoulder. Although not all the prognostic factors identified in this study are modifiable, they can still be useful for guiding patients in shared decision making with the surgeon. This cohort study shows that if selection of patients is performed properly, it is possible to obtain a successful outcome.
Migrations Matrimoniales: Facteurs de Risque en Santé Mentale
Authors: Manço Altay , Tas Ertugrul
Published: November 2018

Objectif :

Cette contribution évalue les migrations matrimoniales en tant que facteurs de risque en santé mentale pour les personnes immigrées et leur entourage.

Méthode :

L’effet des migrations matrimoniales sur la santé mentale des personnes immigrées est approché grâce à l’analyse des données produites par une clinique psychologique située en Belgique. Entre 1997 et 2014, ce centre a accueilli un total de 3265 patients d’origine turque immigrés dans ce pays, dont 41% d’hommes et 59% de femmes. La moitié de ces personnes a migré à la suite d’un mariage.

Résultats :

L’étude montre une incidence prononcée des troubles psychosomatiques et de l’humeur chez les immigrées matrimoniales, alors que les immigrés matrimoniaux atteints de troubles anxieux ou de l’humeur le sont plus gravement. Cette question est peu élaborée dans la littérature bien qu’elle impacte le travail des spécialistes en santé mentale, ainsi que celui des acteurs de l’intégration.

Conclusions :

L’étude devrait être élargie vers d’autres communautés immigrées, dans d’autres pays récepteurs de migrants, notamment en Amérique du Nord. Les observations montrent l’importance de revoir les politiques migratoires et le droit du séjour en fonction des risques psychologiques pris par les migrants matrimoniaux, souvent dépendants de leur belle-famille pour leur subsistance dans le pays d’installation. Si ces personnes avaient d’autres voies d’accès au pays et un droit de séjour, même s’ils ne poursuivent pas leur mariage, cela diminuerait probablement le stress qu’ils vivent.
Nano-hydroxyapatite/polyamide66 composite scaffold conducting osteogenesis to repair mandible defect
Authors: Cai Bianyun , Jiang Nan , Zhang Li , Huang Jinhui , Wang Danqing , Li Yubao
Published: November 2018

In this study, nano-hydroxyapatite/polyamide66 composite scaffold was prepared by combining thermally induced phase separation and particulate leaching. The morphological structure and compositional phases of the scaffold were analyzed, while the in vitro and in vivo biological behaviors were assessed by comparing with the control of the commercial porous polyethylene (MEDPOR®). Results indicate that nano-hydroxyapatite/polyamide66 scaffold showed excellent biocompatibility and the ability to accelerate bone marrow mesenchymal stem cells differentiation in vitro and bone marrow mesenchymal stem cells/nano-hydroxyapatite/polyamide66–engineered constructs exhibited much better in vivo biocompatibility and osteoconductivity with the surrounding host bone than bone marrow mesenchymal stem cells/MEDPOR constructs. The porous nano-hydroxyapatite/polyamide66 scaffold demonstrates a potential to be applied in the orthopedic or maxillofacial surgery.
Exploring Alcohol Use and IPV Among Couples Presenting to Couple Therapy: A Brief Note
Authors: Patton Rikki , Katafiasz Heather
Published: November 2018

Prior research has indicated the significant overlap between risky alcohol use and intimate partner violence (IPV) among couples. However, few studies have explicitly examined the intersection of alcohol use and IPV among distressed couples (e.g., couples seeking couples therapy). The current study aimed to (a) examine how couples presenting to couple therapy experience alcohol use, IPV, and the co-occurrence of both alcohol use and IPV and (b) the effect of the intersection of alcohol use and IPV in couples on relational functioning. Archival data collected from 71 couples presenting to couple therapy at a University training clinic were used to explore the research aims. Data analysis procedures included univariate statistics to characterize the sample and bivariate statistics to examine the research aims. Findings indicated that 16.9% of couples screened positive for both alcohol use and IPV and that there were significant group differences in relational functioning among females in the sample. These findings indicate the potential need for universal alcohol and IPV screening among clinicians working with couples.
Electrical, thermal and flammability properties of conductive filler kenaf–reinforced polymer nanocomposites
Authors: Idumah Christopher Igwe , Hassan Azman , Ogbu James E , Ndem JU , Oti Wilberforce , Obiana Viola
Published: November 2018

Exfoliated graphene nanoplatelets (3 phr) were incorporated into polypropylene with increasing concentration of treated and untreated kenaf flour 0, 10, 20, 30, and 40 wt%, respectively, and prepared via melt-extrusion using corotating twin screw extruder. The resulting nanocomposites were characterized in terms of electrical, thermomechanical, thermal conductivity, thermal behavior, heat deflection temperature (HDT), and mechanical, morphological, and structural properties. Fourier transform infrared spectroscopic results demonstrate that the fibers interacted with the matrix and affected the mechanical behavior. The effective thermal conductivities decreased with increasing fiber content, while HDT of the nanocomposites was found to significantly increase, respectively. The electrical properties decreased with increasing fiber content. However, despite the decline in electrical conductivity, the composites were still relatively conductive for applications such as sensors and electromagnetic shielding after fiber inclusion.
Preparation of cell adhesive micropores by one-step potentiostatic polarization on 304 stainless steel
Authors: Li Yu , Guan Lei , Wei Hongyu , Guo Zhongning , Wang Guan
Published: November 2018

Non-conventional electrochemical machining in micro-manufacturing has atomic-scale machining accuracy only in theory. By taking full advantage of the material heterogeneity, the micropores which most easily initiate at the surface stoichiometric inhomogeneities for stainless steel can be prospectively obtained with the size kept under control by adjusting the machining parameters. Taking the economy and efficiency into account, a one-step potentiostatic polarization method was established. Optimization of the machining parameters for achievement of microporous structure required by cell adhesive surface on 304 stainless steel in natural 15 wt% NaNO3 solution was confirmed. Based on the potentiodynamic polarization curve, a DC voltage of 5 V in the region of secondary passivation was selected due to the porous secondary passivation film which results in the initiation of large amounts of pores. The effects of the machining time on the pore size, coverage ratio, density, unevenness degree and adhesive cell density on the porous surface were investigated through statistical analysis. The results show that there is a maximum value of machining time, tm, when the surface has a maximum pore density, and minimum pore unevenness degree. Meanwhile, adhesive cell density increases to significant level at tm then levels off over time. Therefore, this approach has been testified possible through the novel use of material microdefects and electrochemical machining to obtain cell adhesive micropores.
Periodic controller for guaranteed simultaneous stabilization of two plants with robust zero error tracking
Authors: Chakraborty Arindam , Dey Jayati
Published: November 2018

The guaranteed simultaneous stabilization of two linear time-invariant plants is achieved by continuous-time periodic controller with high controller frequency. Simultaneous stabilization is accomplished by means of pole-placement along with robust zero error tracking to either of two plants. The present work also proposes an efficient design methodology for the same. The periodic controller designed and synthesized for realizable bounded control input with the proposed methodology is always possible to implement with guaranteed simultaneous stabilization for two plants. Simulation and experimental results establish the veracity of the claim.