bluuebunny/crossref_metadata_2025 huggingface dataset:
Medial Quadriceps Tendon-Femoral Ligament Reconstruction: A Technique Description and Short-Term Outcomes
Authors: Bowman Eric N. , Hallock Justin D. , Wells Daniel B. , El Masri Ahmad O. , Phillips Barry B.
Published: July 2019

Purpose:

The medial quadriceps tendon-femoral ligament (MQTFL) is a distinct structure extending from the distal adductor tubercle to quadriceps tendon and provides medial support. Anatomic reconstruction is an alternative to transosseous medial patellofemoral ligament reconstruction for recurrent patellar instability that eliminates concern for patellar fracture. The purpose of this study is to describe a modified surgical technique for the treatment of patellar instability and evaluate short-term outcomes.

Methods:

Modified MQTFL reconstructions were performed between April 2012 and November 2015 for persistent patellar instability for which nonoperative treatment had failed. Included patients had >2+ quadrants of laxity and history of recurrent patellar dislocation. Patients with concurrent injuries, Dejour C or D trochlear dysplasia, or who required a realignment osteotomy were excluded. Anatomic reconstruction of the MQTFL was performed utilizing a sling in the distal medial quadriceps tendon and doubling the graft back to the femoral isometric point. Clinical outcomes were documented via a telephone survey. Physical examination findings were obtained by chart review at 3 to 6 months postoperative.

Results:

Thirteen modified MQTFL reconstructions were evaluated with a mean follow-up of 29 months. At follow-up, all patients had achieved a full range of motion and 1 to 2 quadrants of passive lateral glide with a good endpoint. There were no recurrent dislocations or complications directly related to the surgery. Overall satisfaction rate was 98%. Median Tegner preinjury and postoperative were 7; 67% returned to sports at the same level. Mean Lysholm and Kujala scores were 97 (SD=4).

Conclusion:

Modified MQTFL reconstruction is a safe and effective procedure for the treatment of patellar instability. This procedure is a valuable technique for avoiding potential patellar fracture associated with transosseous medial patellofemoral ligament fixation.

Level of Evidence:

Level IV—case series.
Role of Matrix Vesicles in Bone–Vascular Cross-Talk
Authors: Jing Lele , Li Lihua , Sun Zhen , Bao Zhengyang , Shao Chen , Yan Jinchuan , Pang Qiwen , Geng Yue , Zhang Lili , Wang Xiaodong , Wang Zhongqun
Published: July 2019

Matrix mineralization can be divided into physiological mineralization and pathological mineralization. There is a consensus among existing studies that matrix vesicles (MVs) are the starting sites of bone mineralization, and each component of MVs serves a certain function in mineralization. In addition, ectopic MVs pathologically promote undesired calcification, the primary focus of which is the promotion of vascular calcification. However, the specific mechanisms of the actions of MVs in bone–vascular axis cross-talk have not been fully elucidated. This review summarizes the latest research in this field and explores the roles of MVs in the bone–vascular axis with the aim of generating new ideas for the prevention and treatment of vascular calcification and bone metabolic disease.
Early menarche is associated with an increased risk of type 2 diabetes in rural Chinese women and is partially mediated by BMI: the Henan Rural Cohort Study
Authors: Zhang Lulu , Li Yuqian , Wang Chongjian , Mao Zhenxing , Zhou Wen , Tian Zhongyan , Dong Xiaokang , Zhang Haiqing , Yang Xiu , Fan Mengying , Li Linlin
Published: July 2019

Objective:

The aim of the study was to determine if early menarche is associated with an increased risk of type 2 diabetes mellitus (T2DM) in rural Chinese women and to estimate the proportion that can be attributed to adiposity.

Methods:

A total of 15,346 postmenopausal women were enrolled in this study. Logistic regression and restricted cubic spline analysis were performed to estimate the relationship between age at menarche and T2DM. Mediation analysis was used to investigate whether the association was mediated by body mass index (BMI).

Results:

After adjusting for multiple confounders, the early menarche group (≤14 y) had a higher risk of T2DM (odds ratio [OR] = 1.21; 95% CI = 1.06-1.38;P = 0.004) compared with the reference group (16-17 y), whereas the late onset group (≥19 y) had a lower risk of T2DM (OR = 0.78; 95% CI = 0.66-0.92;P = 0.003). BMI partially mediated the association between age at menarche and T2DM, and the proportion of the effect was 28%.

Conclusions:

Early menarche increases the risk of T2DM, whereas later menarche decreases the risk. The association seems to be partially mediated by BMI.
Histopathology of Inner Ear Malformations: Potential Pitfalls for Cochlear Implantation
Authors: Monsanto Rafael da Costa , Sennaroglu Levent , Uchiyama Mio , Sancak Irem Gul , Paparella Michael Mauro , Cureoglu Sebahattin
Published: July 2019

Hypothesis:

The presence of bony inner ear malformations may associate with a number of anatomical abnormalities affecting the middle ear structures. Those malformations may create pitfalls and complications for cochlear implantation.

Background:

Inner ear malformations associate with varying degrees of hearing loss, and frequently require cochlear implantation for hearing rehabilitation. Therefore, the abnormalities affecting the middle- and inner-ear structures may increase the risk of surgical complications.

Methods:

We examined 38 human temporal bones from donors with bony inner ear malformations. Using light microscopy, we analyzed the presence of abnormalities in the structures of the middle- and inner-ear.

Results:

Our collection comprises of 38 specimens with inner-ear malformations (cochlear aplasia, n = 3; cochlear hypoplasia, n = 30; incomplete partition, n = 3; isolated vestibular malformation, n = 2). The anatomy of the middle ear was abnormal in most temporal bones with cochlear aplasia, cochlear hypoplasia, and incomplete partition type I (40%–100%). Some of those abnormalities (hypoplastic or obliterated mastoid, 55.2%; aplastic or obliterated round window, 71.0%; aberrant course of the facial nerve, 36.8%) may hinder the access to the round window using the conventional facial recess approach for cochlear implantation. The cochlear nerve and associated bony structures (internal auditory canal and bony canal for cochlear nerve) were normal in 71.0% of all temporal bones with inner ear malformations.

Conclusion:

Each different type of malformation may create specific surgical challenges to surgeons. Comprehensive preoperative imaging is fundamental toward the surgical success of cochlear implants in patients with malformations. Alternatives to circumvent those middle- and inner-ear abnormalities and potential complications are further discussed.
The Impact of Stool Consistency on Bowel Movement Satisfaction in Patients With IBS-C or CIC Treated With Linaclotide or Other Medications
Authors: Taylor Douglas C.A. , Abel Jessica L. , Doshi Jalpa A. , Martin Carolyn , Goolsby Hunter Alyssa , Essoi Breanna , Korrer Stephanie , Reasner David S. , Carson Robyn T. , Chey William D.
Published: July 2019

Goals:

This study aimed to characterize the impact of stool consistency on patient-reported bowel movement (BM) satisfaction in patients with irritable bowel syndrome with constipation (IBS-C) or chronic idiopathic constipation, with a focus on linaclotide.

Background:

As new medications for constipation become available, understanding patients’ perceptions of treatment effects may help clinicians manage patient expectations and inform clinical decision-making.

Materials and Methods:

Data were derived from the Chronic Constipation and IBS-C Treatment and Outcomes Real-world Research Platform (CONTOR) study from 2 patient-reported 7-day daily BM diaries to create a dataset of 2922 diaries representing 26,524 BMs for 1806 participants. Binary variables were created for: medication(s) used in the past 24 hours and categorization of BMs as loose or watery stools (LoWS), hard or lumpy stools (HoLS), or intermediate (neither LoWS nor HoLS). The relationship between stool consistency, medication use, and BM satisfaction was analyzed using logistic regression with SEs corrected for repeated observations.

Results:

BMs characterized as intermediate stools and LoWS were satisfactory more often (61.2% and 51.2%, respectively) than HoLS (19.4%). Participants who reported taking linaclotide rated a similar proportion of BMs as satisfactory when described as LoWS (65.6%) or intermediate (64.1%). Linaclotide use was associated with higher odds of BMs being reported as satisfactory compared with nonlinaclotide use (odds ratio: 1.23,P<0.05).

Conclusions:

Overall, CONTOR participants were more likely to report BMs classified as LoWS or intermediate as satisfactory, versus HoLS. Participants taking linaclotide were more likely to be satisfied, particularly those reporting LoWS, versus those not taking linaclotide.
Comparing the Impact of Cancer and Treatment-Related Effects on Psychological Well-being and Quality of Life Between Hong Kong Survivors of Childhood Solid Tumors and Leukemia
Authors: Ho Laurie Long Kwan , Li William Ho Cheung , Ho Ka Yan , Cheung Ankie Tan , Chan Godfrey Chi Fung , Chiu Sau Ying , Chung Joyce Oi Kwan
Published: July 2019

Background

Evidence shows that survivors of solid tumors have a lower survival rate and shorter disease-free survival time than survivors of leukemia. However, the psychological well-being and health-related quality of life (HRQOL) of these 2 groups of cancer survivors have not been compared.

Objective

To examine and compare the impact of cancer and treatment-related effects on psychological well-being and HRQOL between survivors of childhood solid tumors and leukemia.

Methods

We conducted a cross-sectional study involving 65 Hong Kong survivors of solid tumors and 70 survivors of leukemia aged 8 to 18 years who had their medical follow-up in a pediatric outpatient clinic. Participants’ depressive symptoms, self-esteem, and HRQOL were assessed. Twenty-two survivors of childhood solid tumors and 15 survivors of childhood leukemia were then selected for semistructured interviews.

Results

Survivors of childhood solid tumors reported significantly higher mean scores for depressive symptoms, and lower mean self-esteem and HRQOL scores than survivors of childhood leukemia. Qualitative data revealed that survivors of childhood solid tumors faced more challenges in their daily life than survivors of childhood leukemia.

Conclusions

Survivors of childhood solid tumors reported poorer psychological well-being and HRQOL than survivors of childhood leukemia. This vulnerable group warrants more attention and support.

Implications for Practice

It is vital for healthcare professionals to understand the impact of cancer and treatment-related effects in the context of different types of cancer. This will facilitate development and evaluation of appropriate psychological interventions to promote psychological well-being and HRQOL among childhood cancer survivors.
Painful Myoclonus Triggered by Lateral Antebrachial Cutaneous Nerve Entrapment at the Brachioradialis Muscle
Authors: Aktas Adem , Prather Heidi , Brogan David , Colorado Dale
Published: July 2019

Compression of the lateral antebrachial cutaneous nerve is a rare clinical entrapment syndrome often overlooked as an initial etiology of pain. We present a case of an episodic upper limb painful movement disorder (myoclonus) in a 16-yr-old adolescent girl with a remote history of a surgically stabilized supracondylar humeral fracture who was later found to have entrapment of the lateral antebrachial cutaneous nerve. The incidence of a painful myoclonus triggered by a peripheral nerve entrapment is unknown. Combining a history and physical examination, electromyography, nerve conduction studies, and ultrasound enabled us to make an accurate diagnosis that was confirmed by resolution of symptoms after surgical release. This study conforms to all CARE guidelines and reports the required information accordingly (see Supplemental Check list, Supplemental Digital Content 1, http://links.lww.com/PHM/A855).
Cardiac and Skeletal Muscle Myosin Exert Procoagulant Effects
Authors: Coleman Julia R. , Moore Ernest E. , Zilberman-Rudenko Jevgenia , Samuels Jason M. , Cohen Mitchell J. , Silliman Christopher C. , Banerjee Anirban , Sauaia Angela , Griffin John H. , Deguchi Hiroshi
Published: July 2019

Introduction:

Trauma-induced coagulopathy (TIC) and the tissue injury-provoked procoagulant profile are prevalent in severely injured patients, but their mechanisms remain unclear. Myosin, exposed by or released from tissue injury, may play a role in promoting thrombin generation and attenuating fibrinolysis. The objective of the study is to examine the effects of cardiac and skeletal muscle myosins on coagulation in whole blood using thrombelastography (TEG).

Materials and Methods:

Whole blood was collected from healthy adult volunteers (n=8) and native TEGs were performed to evaluate the global coagulation response in the presence of cardiac or skeletal muscle myosin by measuring reaction (R) time (minutes), clot angle (o), and maximum amplitude (MA, mm). TEG measurements were compared using paired t tests.

Results:

Cardiac and skeletal muscle myosins decreased R, from 10.8 min to 8.0 min (P<0.0001) and 6.9 min (P =0.0007), respectively. There were no effects observed on clot propagation (angle) or clot strength (MA) with myosin addition. In the presence of tPA, both cardiac and skeletal muscle myosins shortened R from 11.1 min to 8.62 min (P=0.0245) and 7.75 min (P =0.0027), respectively), with no changes on angle or MA.

Conclusions:

Cardiac and skeletal muscle myosins exhibit procoagulant effects in TEG assays. These whole blood TEG results support the hypothesis that cardiac and skeletal muscle myosins may be either pro-hemostatic or prothrombotic depending on context.
The Risk for Traumatic Brain Injury and Persisting Symptomatology in Elementary, Secondary, and University-Level Students
Authors: Makri Andrea , Koulenti Aphroditi , Argyrou Kyriaki , Gordon Wayne , Constantinidou Fofi
Published: July 2019

Purpose:

This study is part of the first systematic program in the Republic of Cyprus examining the prevalence of traumatic brain injury (TBI) in children, teenagers, and university students. The study incorporated the Greek Version of the Brain Injury Screening Questionnaire (BISQ-G) as the primary tool to identify students with TBI.

Methods:

The BISQ-G was sent out to 2,800 families of children (aged 6–18 years) attending rural and urban elementary and secondary schools from varied socioeconomic backgrounds. Nine hundred forty-four questionnaires (33.8%) were returned. In addition to school-aged children, 322 university students (aged 17–25 years) were recruited from 3 universities and completed the BISQ-G.

Results:

Analyses indicated that 5.8% elementary, 9.7% secondary, and 22.7% university students had symptoms consistent with TBI. Several participants reported more than 1 TBI. Etiology of TBI was similar in all 3 groups and included sports, biking, and falls. Factor analyses yielded a 7-factor structure for the BISQ-G.

Discussion/Conclusions:

The BISQ-G is a valid tool for the identification of individuals with a prior history of TBI. Causes and symptoms of TBI were similar to those reported in the international literature. The article concludes with suggestions for TBI management in the schools.
Bupropion Causes Misdiagnosis in Brain Dopamine Transporter Imaging for Parkinsonism
Authors: Honkanen Emma A. , Kemppainen Nina , Noponen Tommi , Seppänen Marko , Joutsa Juho , Kaasinen Valtteri
Published: July 2019

Objective

The objective of this study was to report long-lasting effects of bupropion on brain dopamine transporter (DAT) in a patient with depression and parkinsonism.

Methods

The patient was a 52-year old man who had been treated with 150 mg/d of bupropion for depression. The patient developed cognitive problems, bradykinesia, and reduced stride length for which he was scanned with [123I]FP-CIT single photon emission computed tomography after the recommended 1-week discontinuation of bupropion. Levodopa treatment trial was initiated without a response. Eleven months later, the patient was scanned for a second time after a 1-month stoppage of bupropion.

Results

The first scan was abnormal with left putamen specific binding ratio of 1.99 (SDs from the reference value mean, −2.40), right putamen of 2.27 (SD, −1.84), left caudate of 2.33 (SD, −2.26), and right caudate of 2.29 (SD, −2.18). The second scan (after 1-month discontinuation) was normal, and specific binding ratios had increased from 5.2% to 31.7% in all striatal regions as compared with the first scan. Brain magnetic resonance imaging and [18F]fluorodeoxyglucose positron emission tomography imaging were normal, and there was no levodopa response or other features supporting neurodegenerative parkinsonism.

Conclusions

Bupropion has previously generally been discontinued 1 week prior DAT imaging, which meets the recommended, albeit arbitrary, time interval of 5 plasma clearance half-lives before the scan. One-week discontinuation of bupropion before DAT imaging may be insufficiently short. Our case shows that longer medication washout and rescan may be needed when there is contradiction between the imaging result and clinical outcome in patients with medications affecting DAT binding.
Safety of traditional medicine and natural product supplements in psychiatry
Authors: Tang Siu W. , Tang Wayne H. , Leonard Brian E.
Published: July 2019

Traditional medicines in the form of health food and supplements are highly popular nowadays. They are often aggressively promoted with unsubstantiated health benefit claims. Patients suffering from chronic illness, such as psychiatric disorders may be attracted to these products and use them concurrently with their prescribed drugs. The potential danger of these health supplements and traditional medicines containing products have prompted repeated warnings by the US Food and Drug Administration in recent years. A new initiative by the Food and Drug Administration in 2019 was also implemented to strengthen the oversight of these supplements. The WHO global compendium will include traditional medicines in 2019, which has generated much debate about their safety. Many practising psychiatrists are not familiar with traditional medicines, and clinically useful information is also not easily available. In this review, we examine the nature and safety of commonly encountered traditional medicine in these health food products and supplements.
Shotgun proteomic analysis of nanoparticle-synthesizing Desulfovibrio alaskensis in response to platinum and palladium
Authors: Capeness Michael J. , Imrie Lisa , Mühlbauer Lukas F. , Le Bihan Thierry , Horsfall Louise E.
Published: July 2019

Platinum and palladium are much sought-after metals of critical global importance in terms of abundance and availability. At the nano-scale these metals are of even higher value due to their catalytic abilities for industrial applications.

Desulfovibrio alaskensis

is able to capture ionic forms of both of these metals, reduce them and synthesize elemental nanoparticles. Despite this ability, very little is known about the biological pathways involved in the formation of these nanoparticles. Proteomic analysis of

D. alaskensis

in response to platinum and palladium has highlighted those proteins involved in both the reductive pathways and the wider stress-response system. A core set of 13 proteins was found in both treatments and consisted of proteins involved in metal transport and reduction. There were also seven proteins that were specific to either platinum or palladium. Overexpression of one of these platinum-specific genes, a NiFe hydrogenase small subunit (Dde_2137), resulted in the formation of larger nanoparticles. This study improves our understanding of the pathways involved in the metal resistance mechanism of

Desulfovibrio

and is informative regarding how we can tailor the bacterium for nanoparticle production, enhancing its application as a bioremediation tool and as a way to capture contaminant metals from the environment.
Individuals with Parkinson’s Disease Retain Spatiotemporal Gait Control With Music and Metronome Cues
Authors: Chawla Guneet , Wygand Madelon , Browner Nina , Lewek Michael D
Published: July 2019

Background

Parkinson’s disease (PD) is marked by a loss of motor automaticity, resulting in decreased control of step length during gait. Rhythmic auditory cues (metronomes or music) may enhance automaticity by adjusting cadence. Both metronomes and music may offer distinct advantages, but prior attempts at quantifying their influence on spatiotemporal aspects of gait have been confounded by altered gait speeds from overground walking. We hypothesized that when gait speed is fixed, individuals with PD would experience difficulty in modifying cadence due to the concomitant requirement to alter step length, with greater changes noted with metronomes compared to music cues.

Research Question

Can a metronome or music promote spatiotemporal adjustments when decoupled from changes in gait speed in individuals with PD?

Methods

21 participants with PD were instructed to time their steps to a metronome and music cues (at 85%, 100%, and 115% of overground cadence) during treadmill walking. We calculated cadence, cadence accuracy, and step length during each cue condition and an uncued control condition. We compared the various cue frequencies and auditory modalities.

Results

At fixed gait speeds, participants were able to increase and decrease cadence in response to auditory cues. Music and metronome cues produced comparable results in cadence manipulation with greater cadence errors noted at slower intended frequencies. Nevertheless, the induced cadence changes created a concomitant alteration in step length, with music and metronomes producing comparable changes. Notably, longer step lengths were induced with both music and metronome during slow frequency cueing.

Significance

This important change conflicts with conventional prescriptive approaches, which advocate for faster cue frequencies, if applied on a treadmill. The music and metronome cues produced comparable changes to gait, suggesting that either cue may be effective at overcoming the shortened step lengths during treadmill walking if slower frequencies are used.
OHNOLOGS v2: A comprehensive resource for the genes retained from whole genome duplication in vertebrates
Authors: Singh Param Priya , Isambert Hervé
Published: July 2019

All vertebrates including human have evolved from an ancestor that underwent two rounds of whole genome duplication (2R-WGD). In addition, teleost fish underwent an additional third round of genome duplication (3R-WGD). The genes retained from these genome duplications, so-called ohnologs, have been instrumental in the evolution of vertebrate complexity, developmental patterns and susceptibility to genetic diseases. However, the identification of vertebrate ohnologs has been challenging, due to lineage specific genome rearrangements since 2R- and 3R-WGD. We have previously identified vertebrate ohnologs using a novel synteny comparison across multiple genomes. Here, we refine and apply this approach on 27 vertebrate genomes to identify ohnologs from both 2R- and 3R-WGD, while taking into account the phylogenetically biased sampling of available species. We assemble vertebrate ohnolog pairs and families in an expanded OHNOLOGS v2 database, which also includes non-protein coding RNA genes. We find that teleost fish have retained most 2R-WGD ohnologs common to amniotes, which have also retained significantly more ohnologs from 3R-WGD, whereas a higher rate of 2R-WGD ohnolog loss is observed in sauropsids compared to mammals and fish. OHNOLOGS v2 should allow deeper evolutionary genomic analysis of the impact of WGD on vertebrates and can be freely accessed at http://ohnologs.curie.fr.
Sex differences in innate and adaptive neural oscillatory patterns predict resilience and susceptibility to chronic stress in rats
Authors: Thériault Rachel-Karson , Manduca Joshua D. , Perreault Melissa L.
Published: July 2019

Major Depressive Disorder (MDD) is a chronic illness with higher incidence in women. Dysregulated neural oscillatory activity is an emerging mechanism underlying MDD, however whether sex differences in these rhythms contribute to the development of MDD symptoms is unknown. Using the chronic unpredictable stress model, we found that stress-resilient and susceptible animals exhibited sex-specific oscillatory markers in the prefrontal cortex, cingulate cortex, nucleus accumbens and hippocampus. Resilient females were predominantly characterized by increased hippocampal theta power and coherence, while resilient males exhibited increased system-wide gamma coherence. In susceptible animals, the females displayed a widespread increase in delta and reduced theta power, however males showed few within-sex differences that could delineate stress susceptibility from resilience. Finally, stress responses were mediated by the temporal recruitment of specific neural pathways, culminating in system-wide changes that correlated with the expression of depression-like behaviours. These findings show that neurophysiological responses can serve as predictive markers of behaviours linked to depression in a sex-specific manner.
Prediction of models for ordered solvent in macromolecular structures by a classifier based upon resolution-independent projections of local feature data
Authors: Jones Laurel , Tynes Michael , Smith Paul
Published: July 2019

Current software tools for the automated building of models for macromolecular X-ray crystal structures are capable of assembling high-quality models for ordered macromolecule and small-molecule scattering components with minimal or no user supervision. Many of these tools also incorporate robust functionality for modelling the ordered water molecules that are found in nearly all macromolecular crystal structures. However, no current tools focus on differentiating these ubiquitous water molecules from other frequently occurring multi-atom solvent species, such as sulfate, or the automated building of models for such species. PeakProbe has been developed specifically to address the need for such a tool. PeakProbe predicts likely solvent models for a given point (termed a `peak') in a structure based on analysis (`probing') of its local electron density and chemical environment. PeakProbe maps a total of 19 resolution-dependent features associated with electron density and two associated with the local chemical environment to a two-dimensional score space that is independent of resolution. Peaks are classified based on the relative frequencies with which four different classes of solvent (including water) are observed within a given region of this score space as determined by large-scale sampling of solvent models in the Protein Data Bank. Designed to classify peaks generated from difference density maxima, PeakProbe also incorporates functionality for identifying peaks associated with model errors or clusters of peaks likely to correspond to multi-atom solvent, and for the validation of existing solvent models using solvent-omit electron-density maps. When tasked with classifying peaks into one of four distinct solvent classes, PeakProbe achieves greater than 99% accuracy for both peaks derived directly from the atomic coordinates of existing solvent models and those based on difference density maxima. While the program is still under development, a fully functional version is publicly available. PeakProbe makes extensive use of cctbx libraries, and requires a PHENIX licence and an up-to-date phenix.python environment for execution.
S-Diethylamino-S-(3-methylbenzoylimino)-S,S-diphenylsulfonium tetrafluoroborate
Authors: Sheikh Md Chanmiya , Yoshimura Toshiaki , Miyatake Ryuta , Hanawa Soichiro
Published: July 2019

The title salt, C24H27N2OS+·BF4
−, was prepared by an alkylation at the amino N atom attached to the sulfur atom of the corresponding sulfodiimide. The configuration around the sulfur atom is a slightly distorted tetrahedral geometry with two S—N bonds and two S—C bonds. The lengths of the S—N(diethylamine) and S=N(m-methylbenzoylimine) bonds are 1.619 (2) and 1.551 (2) Å, respectively. The two N—S—N—C(ethyl) and the N—S—N—C(m-methylbenzoylimine) torsion angles are −85.43 (3), 58.94 (17) and 62.03 (16)°, respectively. The dihedral angle between the two phenyl rings is 84.03 (14)°. In the crystal, C—H...F hydrogen bonds link the cation and anion, forming a three-dimensional network.
Simultaneous tailplane of small UAV and autopilot system design
Authors: Çoban Sezer
Published: July 2019

Purpose

The purpose of this paper is to rise the autonomous flight performance of the small unmanned aerial vehicle (UAV) using simultaneous tailplane of UAV and autopilot system design.

Design/methodology/approach

A small UAV is remanufactured in the UAV laboratory. Its tailplane can be changed before the flight. Autopilot parameters and some parameters of tailplane are instantaneously designed to maximize autonomous flight performance using a stochastic optimization method. Results found are applied for simulations.

Findings

Benefitting simultaneous tailplane of UAV and autopilot system design process, autonomous flight performance is maximized.

Research limitations/implications

Authorization of Directorate General of Civil Aviation in Turkey is required for UAV flights.

Practical implications

Simultaneous tailplane and autopilot system design process is so useful for refining UAV autonomous flight performance.

Social implications

Simultaneous tailplane and autopilot system design process fulfills confidence, high autonomous performance, and easy service demands of UAV users. By that way, UAV users will be able to use better UAVs.

Originality/value

Creating a novel technique to recover autonomous flight performance (e.g. less overshoot, less settling time and less rise time during trajectory tracking) of UAV and developing a novel procedure performing simultaneous tailplane of UAV and autopilot system design idea.
Laser deposited high temperature thin film sensors for gas turbines
Authors: Yang Dongfang , Pankov Vladimir , Zhao Linruo , Patnaik Prakash
Published: July 2019

Purpose

Accurate measurements of the temperature distributions in hot section components are indispensable for the prognostic and health management of gas turbines. Thin film thermocouple (TFTC) sensors, directly fabricated on the surface of a component, add negligible mass and create little or no disturbance to airflow, and therefore, can provide accurate measurements of fast temperature fluctuations of gas turbines. The purpose of this paper is to evaluate TFTC sensors fabricated by combining pulsed laser deposition (PLD) and micromachining techniques (LM).

Design/methodology/approach

The “dry” PLD/LM fabrication approach allows for excellent control of the chemical composition and physical characteristics of the constituent layers and their interfaces, thus achieving good adhesion of the layers to the substrate.

Findings

The results of thermal cyclic durability testing of the fabricated TFTC sensors demonstrated that the proposed PLD-based approach can be used to fabricate sensors that are fully functional at temperatures up to 750°C. Analyses of the sensor performance during durability testing revealed: the existence of a threshold temperature below which accurate temperature measurements were achieved; an abrupt drop in the sensor output occurring when the sensor temperature exceeded the threshold value, with a fast recovery of the sensor output once the temperature was reduced below the threshold level; and sensor “training” capable of increasing the threshold value of the TFTC through its exposure to above-the-threshold temperatures.

Originality/value

The work is the first time to demonstrate that simple PLD and LM processes can be used to fabricate TFTC that are fully functional at temperatures up to 750°C.
Eat, work, love: alternative tourists’ connection with ethnic food
Authors: Omar Rosmini , Syed Obed Rashdi , Ning Binyao , Vagenas Stefanos , Ali Faizan
Published: July 2019

Purpose

Ethnic food is a pivotal polysemic artifact, yet commonly studied based on experience. This leaves an eclipse in understanding its overall significance and implications. The purpose of this paper is to explore the interactions of experience, intimacy and embodiment from the lens of alternative tourism and Asia as a destination image.

Design/methodology/approach

The authors conducted four focus group that include Asians who take experiential learning trips and spiritual journeys across Asia-Pacific.

Findings

Alternative tourists promote the growth of ethnic foodies who value impact which they determine as quality food-scape, longitudinal caring interactions with and the constant assurance of consuming food which are safe and healthy to their physical, emotional and spiritual well-being.

Research limitations/implications

Although our research does not employ any quantitative technique and devoid of inferential analysis, the rich qualitative data offer insights for further work that benefit ethnic food industry.

Practical implications

Industry and policy makers are encouraged to generate contextual solutions for management of the ethnic food industry. Ethnic food consumption may flourish if the industry leads its growth through a post-modernist approach.

Social implications

A broad perspective in growing the frontiers of ethnic food tourism beyond the landscape of an economic or consumerism-dominated approach would benefit the cross-mobility of quality talents and skills as this fosters cross-cultural literacy.

Originality/value

The authors develop the Ethnic Foodies Perspective-Ethnic Food Destination Image Matrix as a pathway to further motivate knowledge cross-fertilization in ethnic food tourism studies and leverage on the transdisciplinary science, innovation, socio- and sensuous geographic arena. A constellation of ethnic food innovation should link the economic side of exotic differentiation and heritage with food processing, safety and traceability.
Community leadership and the Triple Helix model as determinants of the constitution of science parks
Authors: Bencke Fernando Fantoni , Dorion Eric Charles Henri , Prodanov Cleber Cristiano , Olea Pelayo Munhoz
Published: July 2019

Purpose

The purpose of this paper is to analyze and understand the condition that lead to a constitution’s path of Brazilian Science Parks, in the State of Rio Grande do Sul, and consequently to propose a new dimension of analysis to the Triple Helix.

Design/methodology/approach

A qualitative approach was used to elaborate a descriptive and exploratory research design, where a case study method was applied on six science parks.

Findings

The use of the Triple Helix model could not explain the Brazilian Science Park development realities. A new element, related to the innovation model, was considered as a determinant in the constitution of the Brazilian parks, and is represented as the community leadership category, as the Fourth Helix.

Research limitations/implications

Since it is a qualitative study, the results obtained have a strong relation with the local, cultural and historically constructed contexts. Bias from the researchers’ subjectivity in the data collection procedures is present, although the validity and reliability measures were performed.

Practical implications

The construction of designed and implemented specific “fertile models,” which are capable of developing the necessary conditions for the constitution and the consolidation of science parks in Brazil.

Social implications

Such empirical contribution comes from data referring to spontaneous and endogenous local community development movements.

Originality/value

The identification of a new element of the Triple Helix innovation model is represented as the community leadership category and is considered as a key determinant in the constitution of the Brazilian Science Parks.
Potentials of top management team career development and corporate social responsibility
Authors: Hu Yelin , Zhang Qiwang , Wang Xin
Published: July 2019

Purpose

The purpose of this paper is to explore the relationship between potentials of top management teams’ (TMT) career development and corporate social responsibility (CSR) by examining listed manufacturing companies in China. More importantly, it tried to contribute to the understanding of the senior executive’s career development in the trend of upgrading the manufacturing industry.

Design/methodology/approach

The sample firms in this paper were selected from the China A-listed companies in the manufacturing industry. It collected CSR and TMT data from the Rankins CSR Ratings (RKS) Database and CSMAR database and applied the multiple regression to test the hypotheses. Moreover, it implemented the robustness test by using the standard regression method and the structural equation model.

Findings

The findings indicate that a firm’s CSR performance is significantly associated with TMT’s educational level and overseas background. The government background, academic background and financial background of high-level managers, instead, have a negative relationship with CSR performance. In addition, firm’s ownership moderates the relationship between TMT and CSR initiatives – the career development potential of TMT has different effects on promoting CSR in the context of different ownership. These relationships remain significant when the managers’ tenure, gender, age, wage and firm size are controlled.

Research limitations/implications

The empirical research on the potentials of executive career development and CSR is limited to linear assumptions. Since there are fewer overseas holding companies in Chinese state-owned and private enterprises, it failed to reflect international differences.

Practical implications

First, CSR is related to the potentials of TMT career development and also the potentials of TMT career development are associated with the structure of the TMT. Second, to improve CSR, it is necessary to distinguish the different ownership of companies and then adjust the TMT structure correspondingly. Last, senior executives should choose their career direction according to their own distinct and inherent career development potentials.

Originality/value

This study explores the relationship between potentials of TMT career development and CSR. It not only expands the research in the field of CSR but also enriches the research on the career development of top executives.
Collective efforts of people to reduce disasters in the Indian Sundarban islands
Authors: Bera Mohan Kumar
Published: July 2019

Purpose

People from chronic flood-affected areas in the Sundarban islands understand that individual efforts are not sufficient to deal with the floods of increasing magnitude caused by tidal waves in coastal areas and take proactive measures to minimise the impact of floods before turning to the government for support. Their perception of disaster risk influences them to engage in collective activities and develop strategies to mitigate flood disasters. However, many villagers do not participate in collective disaster management activities. The purpose of this paper is to explore the factors of homogeneity that motivate people to work together to reduce the impact of natural hazards.

Design/methodology/approach

Qualitative research has been conducted in Sibpur and Gobordhanpur villages of Indian Sundarban islands. Participant observation and in-depth interview have been applied to explore the collective activities of disaster reduction. Affected, non-affected villagers, representatives of the local government and government administrative officers have been interviewed to understand the disaster management efforts of the government and local people.

Findings

The research has found that drivers of homogeneity and leadership are important for collective activities in disaster management. Threat of disasters, potential loss of livelihood and damages of properties, emotional attachment with the village and ties with extended family members influence villagers to engage in collective activity. Collective activities of villagers help to address the local needs of disaster reduction to the government in a better way.

Originality/value

The study has revealed that strong leadership is required in effective collective activities to manage disaster in the Indian Sundarban islands.
Reimagining local studies in Devon
Authors: Maxted Ian
Published: July 2019

Purpose

The purpose of this paper is to examine the effect that government austerity policies has had on local studies in Devon and suggest a possible alternative means of maintaining local studies’ collections.

Design/methodology/approach

This paper presents an historical survey of local studies provision in the county since the nineteenth century and outlines the present local studies’ landscape.

Findings

The findings show that local studies’ provision has been severely affected by eight years of progressive cuts to public library funding and that present publications, both printed and digital, are no longer being adequately recorded.

Practical implications

This paper suggests that in Devon, the museum sector may be a more appropriate home for local studies’ library provision than are archive services.

Social implications

Volunteers in libraries, museums and archives across Devon will be involved in maintaining a union catalogue and a bibliography of local publications.

Originality/value

While this is a suggested solution for Devon, it may not be applicable in regions with different traditions of heritage provision.
Roles of cataloguing librarians in the digital era
Authors: Al Hijji Khalfan Zahran , Al-Busaidi Mohammad Khamis
Published: July 2019

Purpose

This study aims to explore the roles and skills of Omani academic cataloguing librarians in facilitating access to various kinds of traditional and digital information resources and challenges confronting them in fulfilling that task.

Design/methodology/approach

Data for this research were gathered from 37 academic libraries in the country through a questionnaire sent to their cataloguing librarians. Google Docs format was used for cumulating and presenting quantitative data, whilst content analysis was utilized for gathering the qualitative data in specific themes according to the research questions.

Findings

The obvious findings are that Omani academic cataloguers still perform the traditional cataloguing functions, including copy and original cataloguing, and maintain authority files. Moreover, more than half of the respondents have the skills required for working in groups and are familiar with cataloguing tools such as RDA rules and BIBFRAME. However, cataloguers lack familiarity with computer languages (XML, PMH, OAI, RDF) and metadata.

Practical implications

The research concludes with suggestions to libraries for improving librarians’ skills and performance through such as provision of proficient training and establishment of a collaborative body.

Originality/value

This research addresses an area of interest to most librarians. However, few researchers in the authors’ region have focused on this topic. The study, therefore, aims to contribute to filling this gap through assessing whether cataloguers in Oman have the skills and roles required for organizing various information resources in the digital era.
Replacing a delisted brand with premium and standard private labels
Authors: Lessassy Léopold
Published: July 2019

Purpose

The purpose of this paper is to examine the moderating effect of brand preference and type of shopping trip on the relationship between replacing a delisted national brand (NB) with a retailer’s private label (PL) brand (premium vs standard) and private label switching (PLS), that is switching from NB to PL.

Design/methodology/approach

Inside a major French retail chain store, an experiment with 1,392 NB buyers tested the impact of replacing NB with PL on PLS.

Findings

Results stress the positive contribution of PL replacements after NB delisting on buyers’ switching behaviour at different brand preference levels and shopping trip types. A main-choice NB for a major trip shopping benefits a PLS to premium PL. However, when a fill-in shopper looks for a secondary brand, competition between PL standard and NB may not be as weak as suggested in earlier studies.

Research limitations/implications

The limitation of this study is that respondents reported their purchases instead of actually buying.

Practical implications

This study highlights that the retailers that delist some NB brands in the category should adopt a strategy either to develop premium or standard PLs, depending on consumers’ brand preference and shopping trip type.

Social implications

Delisting is an opportunity to question the NB product competitiveness towards PL.

Originality/value

The study is based on actual delisting and replacement, combined with a large sample, unlike previous studies. Moreover, it bridges two important areas of research: conflict in marketing channels and PL introduction in retailers’ assortment decisions.
Relationship between competitive SMEs’ orientation and “Catur Paramitha”
Authors: Ketut Rahyuda I. , Bagus Anom Purbawangsa Ida , Bagus Ketut Surya Ida
Published: July 2019

Purpose

The purpose of this paper is to identify dimensions and indicators of “Catur Paramitha” that improve the performance of SMEs in Sarbagita area.

Design/methodology/approach

The study used a quantitative and qualitative approach. Glaser and Strauss’s (1967) grounded theory, and Strauss and Corbin (1990) were the bases for the qualitative approach. It also employed a quantitative approach to analyze the difference between the SMEs. The setting comprised of three municipalities in Bali and Denpasar; altogether, these areas are known as “Sarbagita.” Bali is divided into 8 districts, 1 city, and 57 regions. Due to the large number of SMEs in Bali, there is no institution that has been able to identify the exact number of SMEs in “Sarbagita.”

Findings

There is a significant and positive relationship between “Catur Paramitha” and the performance of SMEs in both East Java and Bali. The finding also describes the performance of the SMEs that apply the principles of “Catur Paramitha” and those that do not. “Catur Paramitha” that consists of “metria,” “karuna,” “upeksa” and “mudita” is a pivotal concept to apply for SME owners/management in order to prevent money from being the only basis for capitalist competition. Local wisdom can control cannibalism, turning it into humanism and friendship-based partnership or cooperation.

Originality/value

The originality of this research is its methodology, and the fact that the local culture becomes the basis for a successful business venture and organizational performance as the key for a successful business venture. Improved organizational performance is the result of more developed internal resources and competitive advantage. Local culture is a very important element to develop a competitive advantage (Barney and Clark, 2007). Local culture is local wisdom. Studies focusing on the local wisdom theory (Clayton and Birren, 1980; Robinson, 1990; Sternberg, 2000) use qualitative methods. Quantitative method is the approach used to explain the relationship between humanistic values and the performance of the SMEs (competitive advantage) based on statistical analysis. Therefore, the originality of this study is a mixed approach between quantitative and qualitative with interpretive-based approaches.