bluuebunny/crossref_metadata_2025 huggingface dataset:
Epoxidation of ethylene over Pt-, Pd- and Ni-doped graphene in the presence of N2O as an oxidant: a comparative DFT study
Authors: Esrafili Mehdi D. , Saeidi Nasibeh , Dinparast Leila
Published: July 2017

The catalytic activities of Pt-, Pd-, and Ni-doped graphene nanosheets for the oxidation of ethylene to ethylene oxide by N2O molecule are compared using the density functional theory calculations.
Electrochemical growth of Co(OH)2 nanoflakes on Ni foam for methanol electro-oxidation
Authors: Roy Animesh , Jadhav Harsharaj S. , Thorat Gaurav M. , Seo Jeong Gil
Published: July 2017

Co(OH)2 nanoflakes directly grown on Ni foam using an electrodeposition route exhibit a promising performance for electrocatalytic oxidation of methanol.
Selective detection of inorganic phosphates in live cells based on a responsive fluorescence probe
Authors: Feng Huan , Wang Yue , Jia Hongmin , Zhang Run , Han Qian , Meng Qingtao , Zhang Zhiqiang
Published: July 2017

A new activatable fluorescence probe has been designed and synthesized for inorganic phosphate detection in buffer and live cells.
Correction: Understanding the reactivity of bis(propargyl) aromatic esters towards GAP: a theoretical exploration
Authors: Sonawane Sanjeevani H. , Banerjee Shaibal , Sider Arun K. , Talawar Mahadev B. , Khan Md Abdul Shafeeuulla
Published: July 2017

Correction for ‘Understanding the reactivity of bis(propargyl) aromatic esters towards GAP: a theoretical exploration’ by Sanjeevani H. Sonawane et al., New J. Chem., 2017, DOI: 10.1039/c7nj01172e.
Total synthesis of the dictyodendrins as an arena to highlight emerging synthetic technologies
Authors: Zhang Wenhan , Ready Joseph M.
Published: July 2017

The dictyodendrins are a family of alkaloids isolated from marine sponges, Dictyodendrilla verongiformis and Ianthella sp., which possess a highly substituted pyrrolo[2,3-c]carbazole core at the phenol or quinone oxidation states. This review discusses the many diverse approaches used to synthesize these complex natural products.
Quantum efficiency optimization by maximizing wave function overlap in type-II superlattice photodetectors
Authors: Zhao Yunhao , Liu Lu , Bi Han , Han Xi , Zhao Xuebing , Ni Haiqiao , Xu Yingqiang , Niu Zhichuan , Che Renchao
Published: July 2017

Appropriate voltage is applied on superlattice photodetector to maximize the wavefunction overlap, which boosts quantum efficiency to its maximum.
In situ evolution of highly dispersed amorphous CoOxclusters for oxygen evolution reaction
Authors: Chen Dawei , Dong Chung-Li , Zou Yuqin , Su Dong , Huang Yu-Cheng , Tao Li , Dou Shuo , Shen Shaohua , Wang Shuangyin
Published: July 2017

Highly-dispersed amorphous CoOxclusters were synthesized by DBD air plasma for OER.
Discovery of 2-(pyridin-2-yl)aniline as a directing group for the sp2 C–H bond amination mediated by cupric acetate
Authors: Zhao Hong-Yi , Wang Hui-Yan , Mao Shuai , Xin Minhang , Zhang Hao , Zhang San-Qi
Published: July 2017

2-(Pyridin-2-yl) aniline was designed as a new, removable directing group in promoting C–H amination mediated by cupric acetate.
Inhibitors of nicotinamide N-methyltransferase designed to mimic the methylation reaction transition state
Authors: van Haren Matthijs J. , Taig Rebecca , Kuppens Jilles , Sastre Toraño Javier , Moret Ed E. , Parsons Richard B. , Sartini Davide , Emanuelli Monica , Martin Nathaniel I.
Published: July 2017

Inhibitors designed to simultaneously occupy the different substrate binding pockets of the NNMT active site reveal key structural features required for potent inhibition.
Amide rotation trajectories probed by symmetry
Authors: Kubyshkin Vladimir , Budisa Nediljko
Published: July 2017

Here we utilized symmetric proline analogues in order to mimic trajectories of the amide rotation and characterize differences in the rotation scenarios.
Three-step synthesis of 2,5,7-trisubstituted indoles from N-acetyl-2,4,6-trichloroaniline using Pd-catalyzed site-selective cross-coupling
Authors: Yamaguchi Miyuki , Manabe Kei
Published: July 2017

A facile three-step synthesis of 2,5,7-trisubstituted indoles was realized by using Cy-DHTP as an effective ligand for site-selective cross couplings.
The potential of pnicogen bonding for catalysis – a computational study
Authors: Schmauck J. , Breugst M.
Published: July 2017

Computational investigations reveal that pnicogen bonding, a noncovalent interaction between the electrophilic region of a phosphorus atom and a Lewis base, can activate electrophiles in catalytic reactions.
Stereochemical effects on the mechanical and viscoelastic properties of renewable polyurethanes derived from isohexides and hydroxymethylfurfural
Authors: Kieber Robert J. , Silver Samantha A. , Kennemur Justin G.
Published: July 2017

Biomass-derived polyurethanes were synthesized using 2,5-bishydroxymethylfuran (BHMF) and diisocyanate functionalized isohexides, isosorbide bis(3-isocyanatopropanoate) (ISBIP) and isomannide bis(3-isocyanatopropanoate) (IMBIP), at varying feed ratios.
Functional nanonetwork-structured polymers with inbuilt poly(acrylic acid) linings for enhanced adsorption
Authors: Mai Weicong , Zuo Yuan , Li Chuanfa , Wu Jinlun , Leng Kunyi , Zhang Xingcai , Liu Ruliang , Fu Ruowen , Wu Dingcai
Published: July 2017

Functional nanonetwork-structured polymers with inbuilt poly(acrylic acid) linings for enhanced adsorption toward basic dyes and heavy metal ions were fabricated based on the union of SI-ATRP and hypercrosslinking.
High-performance supercapacitors based on conductive graphene combined with Ni(OH)2 nanoflakes
Authors: Chai Hui , Peng Xiao , Liu Ting , Su Xiaohui , Jia Dianzeng , Zhou Wanyong
Published: July 2017

A GNS/Ni(OH)2 composite with high capacity was obtained via a facile and effective one-step process under alkaline conditions.
Breaking the disulfide chemical bond using high energy photons: the dimethyl disulfide and methyl propyl disulfide molecules
Authors: Varas L. R. , Coutinho L. H. , Bernini R. B. , Betancourt A. M. , de Moura C. E. V. , Rocha A. B. , de Souza G. G. B.
Published: July 2017

In order to study the stability of the disulfide chemical bond in molecules subjected to a flux of high energy photons, the ionic fragmentation of DMDS and MPDS has been studied following excitation around the S 1s edge (∼2470 eV).
Flexible composite film of aligned polyaniline grown on the surface of magnetic barium titanate/polyvinylidene fluoride for exceptional microwave absorption performance
Authors: Yu Lujun , Zhu Yaofeng , Fu Yaqin
Published: July 2017

A rational structure design is always an attractive approach for high-performance microwave absorbers.
Kinetics and electrochemical evolution of binary silicon–polymer systems for lithium ion batteries
Authors: Li Changling , Liu Chueh , Ahmed Kazi , Mutlu Zafer , Yan Yiran , Lee Ilkeun , Ozkan Mihrimah , Ozkan Cengiz S.
Published: July 2017

The kinetics and evolution of binary silicon–polymer systems have been systematically studied for electrochemical energy storage.
Kinetic resolution of (RS)-1-chloro-3-(4-(2-methoxyethyl)phenoxy)propan-2-ol: a metoprolol intermediate and its validation through homology model of Pseudomonas fluorescens lipase
Authors: Soni Surbhi , Dwivedee Bharat P. , Sharma Vishnu K. , Banerjee Uttam C.
Published: July 2017

Kinetic resolution of (±)-1-chloro-3-(4-(2-methoxyethyl)phenoxy)propan-2-ol: a metoprolol intermediate and its validation through homology model ofPseudomonas fluorescenslipase.
Conversion of cellulose rich municipal solid waste blends using ionic liquids: feedstock convertibility and process scale-up
Authors: Liang Ling , Li Chenlin , Xu Feng , He Qian , Yan Jipeng , Luong Tina , Simmons Blake A. , Pray Todd R. , Singh Seema , Thompson Vicki S. , Sun Ning
Published: July 2017

Process development and scale-up of an ionic liquid based process that converts actual household waste (cellulose rich fraction) to fermentable sugars.
Why is sodium-intercalated graphite unstable?
Authors: Moriwake Hiroki , Kuwabara Akihide , Fisher Craig A. J. , Ikuhara Yuichi
Published: July 2017

In this article, we try to answer the fundamental question in Na-ion batteries using DFT calculations: why is sodium-intercalated graphite unstable?
Multifunctional organic dyes: anion-sensing and light-harvesting properties of curcumin boron complexes
Authors: Tsuchikawa Masahiro , Takao Aya , Funaki Takashi , Sugihara Hideki , Ono Katsuhiko
Published: July 2017

Organoboron compounds containing curcumin (i.e.natural phenols) were synthesised as a new type of multifunctional organic dye.
Gold nanorods on three-dimensional nickel foam: a non-enzymatic glucose sensor with enhanced electro-catalytic performance
Authors: Liu Wenqi , Wu Xiaochun , Li Xiaojin
Published: July 2017

A non-enzymatic electrochemical sensor with a unique three dimensional network structure was developed by combining Ni foam with Au NRs.
Integrated heart/cancer on a chip to reproduce the side effects of anti-cancer drugs in vitro
Authors: Kamei Ken-ichiro , Kato Yoshiki , Hirai Yoshikazu , Ito Shinji , Satoh Junko , Oka Atsuko , Tsuchiya Toshiyuki , Chen Yong , Tabata Osamu
Published: July 2017

Integrated Heart/Cancer on a Chip (iHCC) is a promising microfluidic platform that allows the culture of different cell types separately and application of closed-medium circulation to reproduce the side effects of doxorubicin on heart in vitro.
Nickel-catalyzed C–H/N–H annulation of aromatic amides with alkynes in the absence of a specific chelation system
Authors: Obata Atsushi , Ano Yusuke , Chatani Naoto
Published: July 2017

We report the development of a new system for C–H functionalizations catalyzed by nickel complexes. The findings show that aromatic amides with a simple directing group can participate in Ni-catalyzed C–H functionalization.
Catalytic [2 + 2 + 2] cycloaddition with indium(iii)-activated formaldimines: a practical and selective access to hexahydropyrimidines and 1,3-diamines from alkenes
Authors: Zhou Hui , Chaminda Lakmal Hetti Handi , Baine Jonathan M. , Valle Henry U. , Xu Xue , Cui Xin
Published: July 2017

Catalytic [2 + 2 + 2] cycloaddition with three double bond systems has been developed for construction of hexahydropyrimidine and 1,3-diamine derivatives.
Catalytic asymmetric hydroxylative dearomatization of 2-naphthols: synthesis of lacinilene derivatives
Authors: Zhang Yu , Liao Yuting , Liu Xiaohua , Xu Xi , Lin Lili , Feng Xiaoming
Published: July 2017

A highly enantioselective hydroxylative dearomatization of 2-naphthols with oxaziridines has been accomplished using anN,N′-dioxide–scandium(iii) complex catalyst. This methodology could be applied in the synthesis of bioactive lacinilenes in a gram-scale reaction.
Fabrication of chiroptically switchable films via co-gelation of a small chiral gelator with an achiral azobenzene-containing polymer
Authors: Yang Dong , Zhang Li , Yin Lu , Zhao Yin , Zhang Wei , Liu Minghua
Published: July 2017

Helical polymers are widely found in nature and synthetic functional materials.
Updating the road map to metal-halide perovskites for photovoltaics
Authors: Matthews Peter D. , Lewis David J. , O'Brien Paul
Published: July 2017

We provide an update to the synthesis and properties metal-halide perovskites, a rapidly developing field that has revolutionised photovoltaics.
Flexible MXene–graphene electrodes with high volumetric capacitance for integrated co-cathode energy conversion/storage devices
Authors: Xu Shuaikai , Wei Guodong , Li Junzhi , Han Wei , Gogotsi Yury
Published: July 2017

Flexible porous Ti3C2Txdecorated rGO films with high volumetric capacitance were produced to eliminate the need for the delamination of MXenes.
Effects of HAp and TCP in constructing tissue engineering scaffolds for bone repair
Authors: Xu Sijia , Liu Jianheng , Zhang Licheng , Yang Fei , Tang Peifu , Wu Decheng
Published: July 2017

TCP possesses superior long-term effects in structuring tissue engineering scaffold for bone repair compared to HAp, though TCP lags behind HAp in the early repair period.
Eosin-mediated synthesis of polymer coatings combining photodynamic inactivation and antimicrobial properties
Authors: Sautrot-Ba P. , Contreras A. , Abbad Andaloussi S. , Coradin T. , Hélary C. , Razza N. , Sangermano M. , Mazeran P.-E. , Malval J.-P. , Versace D.-L.
Published: July 2017

Eosin-derived coatings exhibiting photodynamic bacterial inactivation and antibacterial properties.
Precise control of drug loading and release of an NSAID–polymer conjugate for long term osteoarthritis intra-articular drug delivery
Authors: Sulistio Adrian , Reyes-Ortega Felisa , D’Souza Asha M. , Ng Sarah M. Y. , Valade David , Quinn John F. , Donohue Andrew C. , Mansfeld Friederike , Blencowe Anton , Qiao Greg , Prankerd Richard , Quirk Stephen , Whittaker Michael R. , Davis Thomas P. , Tait Russell J.
Published: July 2017

The synthesis of biocompatible polymer diclofenac conjugates (PDCs) that have a high drug loading and high degree of control over diclofenac (DCF) release is described.
Fabrication of intelligent photonic crystal hydrogel sensors for selective detection of trace mercury ions in seawater
Authors: Qin Junjie , Dong Bohua , Li Xue , Han Jiwei , Gao Rongjie , Su Ge , Cao Lixin , Wang Wei
Published: July 2017

Hydrogel thin films with embedded 3-D ordered colloidal nanoparticle arrays are fabricated and functionalized with spatially distributed thiol groups for high-sensitive and selective detection of trace Hg2+ ions in seawater.
Solution-processed Er3+-doped As3S7 chalcogenide films: optical properties and 1.5 μm photoluminescence activated by thermal treatment
Authors: Strizik L. , Wagner T. , Weissova V. , Oswald J. , Palka K. , Benes L. , Krbal M. , Jambor R. , Koughia C. , Kasap S. O.
Published: July 2017

Solution-processed rare-earth-doped chalcogenide films utilizing organolanthanide precursors open up low-cost versatile fabrication of photoluminescence active films applied in optoelectronics and photonics.
Key Word Signing Usage of Adults With Intellectual Disabilities: Influence of Communication Partners' Sign Usage and Responsivity
Authors: Rombouts Ellen , Maes Bea , Zink Inge
Published: July 2017

Purpose

In services for adults with intellectual disabilities, various staff members may have different key word signing (KWS) skills and conversational style. Little is known about how these clients use KWS with different staff members. Therefore, we observed staff–client conversations and examined how clients' KWS usage was shaped by staff members' KWS usage and conversational style.

Method

Three 10-min dyadic conversations between an adult with moderate or severe intellectual disabilities (
N
= 15) and three familiar staff members were filmed and transcribed. The KWS usage and conversational responsivity in the transcriptions was analyzed at group (using generalized estimating equations), subgroup, and individual levels.

Results

Clients appeared to produce significantly more KWS as partners imitated more signs and as partners were more responsive. There was a negative interaction between these two factors. Subgroup analyses showed that spontaneity of clients' KWS usage was a continuum.

Conclusion

Findings suggest that staff can encourage clients' KWS usage by imitating manual signs but that clients' response efficiency should also be taken into account.
Sampling Utterances and Grammatical Analysis Revised (SUGAR): New Normative Values for Language Sample Analysis Measures
Authors: Pavelko Stacey L. , Owens Robert E.
Published: July 2017

Purpose

The purpose of this study was to document whether mean length of utterance (MLU
S
), total number of words (TNW), clauses per sentence (CPS), and/or words per sentence (WPS) demonstrated age-related changes in children with typical language and to document the average time to collect, transcribe, and analyze conversational language samples.

Method

Participants were 385 typically developing children (ages 3;0–7;11 [years;months]), with a final sample size of 270 participants (133 males and 137 females). Fifty-utterance conversational language samples were collected using a language sampling protocol. Four language sample analysis (LSA) metrics (i.e., MLU
S
, TNW, CPS, WPS) were calculated from the samples.

Results

Results indicated statistically significant age-related increases in the four metrics. The average time to collect, transcribe, and analyze each sample was 20.91 min (
SD
= 3.97; range = 10.55–33.37).

Conclusion

MLU
S
, TNW, CPS, and WPS may be used with other assessment data to document age-related changes in children's language. When used as part of an assessment, the results from all of the metrics should be considered. Considering results from only 1 individual metric is not encouraged. These results suggest LSA may be completed in approximately 20 min, which is less than the average time to administer a standardized, norm-referenced language assessment.
Role of Magnetic Resonance Imaging in Unconscious Patients due to Diffuse Axonal Injury and Its Prognostic Value
Authors: Purohit Devendra , Sinha Virendra , Karthikeyan Y.
Published: July 2017

Aim To study the long-term prognostic value of early magnetic resonance imaging (MRI) in unconscious patients with traumatic brain injury with findings of NCCT of the brain suggestive of diffuse axonal injury (DAI).

Background Studies addressing the correlation of MRI with the pattern and duration of loss of consciousness due to DAI are few. The utility of MRI in predicting the functional outcome has not been reported in the Indian population.

Materials and Methods In patients with DAI, MRI sequences including T1, T2*GRE (gradient recall echo), fluid-attenuated inversion recovery (FLAIR), diffusion-weighted imaging (DWI), and susceptibility-weighted imaging (SWI) were obtained. Glasgow coma scale (GCS) and Glasgow outcome scale (GOS) scores were documented at admission, on discharge, and at 3 months.

Results A total of 54 patients (53 males, 1 female) were included in the study. The mean age was 27 ± 11.7 years. The mean GCS score on admission and at follow-up were 9.14 ± 2.3 and 11.7 ± 2.3, respectively. The mean GOS score on discharge and at 3 months were 2.6 ± 0.8 and 3.18 ± 1.02, respectively. SWI sequence detected maximum number of lesions followed by GRE and DWI. Patients with lesions in brainstem and basal ganglia were found to have a less favorable outcome as assessed by GCS and GOS at 3 months. There was no correlation between the total lesion load and outcome at 3 months.

Conclusion In patients with DAI, SWI was found to be the most sensitive MRI sequence detecting maximum number of lesions. Patients with lesions in the brainstem and basal ganglia appear to have longer duration of unconsciousness and poorer outcome at 3 months.
Bilateral Chronic Subdural Hematoma and Blindness: Bilateral Infarction to the Posterior Cerebral Artery following Evacuation of Bilateral Chronic Subdural Hematoma — A Rare Case Report and Review of Literature
Authors: Adimoolam Sendilkumar , Shunmugam Syamala , Balasubramanian Sneha Chitra
Published: July 2017

Objective The authors report a rare scenario in which evacuation of bilateral chronic subdural hematoma (CSDH) was followed by bilateral PCA infarction and blindness. A literature review was also conducted, which revealed only four cases of blindness after CSDH evacuation.

Methods A 45-year-old man was admitted with the chief complaint of holocranial headache for 2 months with past history of head trauma. Clinical examination was normal. CT and MRI scanning showed bilateral frontotemperoparietal CSDH without midline shift and parenchymal and vascular abnormality. Bilateral frontal and parietal burr holes and evacuation of CSDH was done.

Results The patient developed progressive blindness in both the eyes in the postoperative period. MRI revealed bilateral PCA infarction.

Discussion Bilateral PCA infarction following bilateral CSDH evacuation is an extremely rare entity. Only four case of blindness following CSDH evacuation have been reported so far, and all the patients suffered permanent visual loss. The exact etiopathogenesis and mechanism of this rare complication remain unknown.

Conclusion Bilateral CSDH is a separate entity with altered pathophysiology and deranged cerebral autoregulation. The authors conclude that Bilateral CSDH may be sentinel tags for bilateral PCA infarction secondary to altered hemodynamics in the posterior circulation, and hence, needs to be evaluated and treated with greater diligence.
Outcomes after Arthroscopic Debridement of the Triangular Fibrocartilage Complex in Adolescents
Authors: Schüller Marion , Ganger Rudolf , Girsch Werner , Farr Sebastian
Published: July 2017

Background To the best of our knowledge, we are not aware of any reports focusing on results of arthroscopic debridement of triangular fibrocartilage complex (TFCC) tears in immature patients.

Purpose The purpose of this study was to evaluate our results after arthroscopic debridement of TFCC tears in adolescents.

Materials and Methods We retrospectively identified all patients of 18 years or less, who received an arthroscopic TFCC debridement due to a traumatic or degenerative tear according to Palmer. These cases were clinically re-evaluated after a mean period of 6.7 years (SD ± 3.9 years). All patients completed the Modified Mayo Wrist Score (MMWS), Disabilities of the Arm, Shoulder and Hand (DASH) inventory, and Patient-Rated Wrist Evaluation (PRWE).

Results Thirteen adolescent patients (mean age: 15.6 ± 2.2 years at surgery) were included. The mean MMWS increased significantly from 70 ± 13.6 to 90 ± 6.5 after the TFCC debridement; mean postoperative DASH and PRWE scores of 17 ± 15.2 and 21 ± 18.5, respectively, indicated good and excellent outcomes for the majority of the cohort. The mean pain level decreased significantly from a mean of 5.7 ± 2.0 to 1.8 ± 2.0 at follow-up. Six patients needed a reoperation to achieve a successful outcome.

Conclusion Arthroscopic debridement of TFCC tears, performed as a concomitant wrist surgery in adolescents, efficiently reduced wrist pain and yielded good to excellent results in the long term. However, under certain circumstances, its results are unpredictable and further surgery may be necessary to eventually achieve the satisfying outcomes. Further studies are needed to confirm these findings.

Level of Evidence Level IV, therapeutic case series.
Increased Neonatal Respiratory Morbidity Associated with Gestational and Pregestational Diabetes: A Retrospective Study
Authors: Kawakita T. , Bowers K. , Hazrati S. , Zhang C. , Grewal J. , Chen Z. , Sun L. , Grantz K.
Published: July 2017

Objective To examine the risk of neonatal respiratory morbidity associated with gestational and pregestational diabetes, accounting for the prematurity-associated risk using a propensity score analysis.

Study design In a retrospective study including 222,978 singleton pregnancies, delivering at 240/7 to 416/7 weeks (2002–2008), we calculated a probability to deliver at term (≥37 weeks of gestation). Outcomes were stratified by the probability to deliver at term (>0.8 and ≤0.8). Adjusted odds ratios (aORs) with 95% confidence intervals (95% CIs) were calculated.

Results Gestational and pregestational diabetes complicated 5.1 and 1.5% of pregnancies, respectively, and were associated with increased risks of neonatal respiratory morbidity compared with women without diabetes regardless of probability to deliver at term. However, these risks tended to be higher with a higher probability to deliver at term: respiratory distress syndrome (aOR: 1.5; 95% CI: 1.3–1.7 and aOR: 3.1; 95% CI: 2.6–3.7); transient tachypnea of newborn (aOR: 1.5; 95% CI: 1.3–1.6 and aOR: 2.2; 95% CI: 1.9–2.6); and apnea (aOR: 1.5; 95% CI: 1.2–1.7 and aOR: 3.2; 95% CI: 2.6–3.9, for gestational and pregestational at term, respectively).

Conclusion Diabetes was associated with increased risk of neonatal respiratory morbidity beyond what can be attributed to prematurity. Neonatal respiratory morbidities were increased with pregestational diabetes compared with gestational diabetes.
Results of Arthroscopic Synovectomy for Treatment of Synovial Lipomatosis (Lipoma Arborescens) of the Knee
Authors: Malkoc Melih , Korkmaz Özgur
Published: July 2017

Synovial lipomatosis (SL; lipoma arborescens) is a tumor-like condition with villous proliferation of the synovium. The exact etiology of SL is still unknown. The knee is the most commonly involved part. The goal of this retrospective study was to report the results of arthroscopic synovectomy in patients with SL in their knee joints as well as to emphasize the importance of considering this pathology when treating patients with recurrent knee joint effusions. In total, 21 patients (8 females and 13 males) were evaluated retrospectively from May 2009 to July 2014. The mean follow-up period was 29.13 (range, 12–61) months. The mean duration of compliance was 22.76 (range, 7–61) months. All patients were evaluated by Knee Society score pre- and postoperatively. The mean preoperative and last follow-up Knee Society scores were 67.82 and 88.23 points, respectively. There was a significant difference between the preoperative and postoperative Knee Society scores (p = 0.0001). Histopathological examinations showed that the subsynovial layer exhibited diffuse replacement by mature fat cells that had formed villous projections. In addition, infiltration of mononuclear inflammatory cells was observed at different stages. SL is a nondestructive and benign tumor pathology of the knee joint without a clearly identified etiology. The main difficulty in diagnosis is lack of clinical practice.
Association between Patient History and Physical Examination and Osteoarthritis after Ankle Sprain
Authors: van Ochten John , de Vries Anja , van Putte Nienke , Oei Edwin , Bindels Patrick , Bierma-Zeinstra Sita , van Middelkoop Marienke
Published: July 2017

Structural abnormalities on MRI are frequent after an ankle sprain. To determine the association between patient history, physical examination and early osteoarthritis (OA) in patients after a previous ankle sprain, 98 patients with persistent complaints were selected from a cross-sectional study. Patient history taking and physical examination were applied and MRI was taken. Univariate and multivariable analyses were used to test possible associations. Signs of OA (cartilage loss, osteophytes and bone marrow edema) were seen in the talocrural joint (TCJ) in 40% and the talonavicular joint (TNJ) in 49%. Multivariable analysis showed a significant positive association between swelling (OR 3.58, 95%CI 1.13;11.4), a difference in ROM of passive plantar flexion (OR 1.09, 95%CI 1.01;1.18) and bone edema in the TCJ. A difference in ROM of passive plantar flexion (OR 1.07, 95%CI 1.00;1.15) and pain at the end range of dorsiflexion/plantar flexion (OR 5.23, 95%CI 1.88;14.58) were associated with osteophytes in the TNJ. Pain at the end of dorsiflexion/plantar flexion, a difference in ROM of passive plantar flexion and swelling seem to be associated with features of OA (bone marrow edema, osteophytes) in the TCJ and TNJ. Our findings may guide physicians to predict structural joint abnormalities as signs of osteoarthritis.

Level of evidence: 1b
Wahrnehmung des Verteilungssystems in der Lebertransplantation aus dem Blickwinkel unterschiedlicher Interessengruppen
Authors: Englschalk Christine , Guba Markus
Published: July 2017

Das Transplantationsgesetz (TPG) als Rechtsgrundlage für das Verteilungssystem in der Lebertransplantation in Deutschland wird durch Richtlinien der Bundesärztekammer (BÄK) konkretisiert. In diesen Richtlinien wird der Stand der Erkenntnisse der medizinischen Wissenschaft festgestellt. Das Verfahren für die Richtlinienerarbeitung ist nun formalisiert und transparent gestaltet worden.

Die Umfrage mit 502 Teilnehmern beleuchtet 4 aktuelle Aspekte des Verteilungssystems aus dem Blickwinkel unterschiedlicher Interessengruppen (medizinisches Personal, Patienten auf der Warteliste Leber oder nach einer Lebertransplantation, Medizinstudenten und nicht medizinische Universitätsmitarbeiter und Studenten). Eine große Mehrheit der Befragten empfand das gegenwärtige Verteilungssystem für Spenderorgane als gerecht. Ärzten wurde ein großes Mitspracherecht hinsichtlich der Allokationsregeln eingeräumt. Die Chancen eines Patienten auf der Warteliste, rechtzeitig ein Spenderorgan zu erhalten, wurden schlechter eingeschätzt als sie tatsächlich sind. Die 6-monatige Alkoholabstinenz vor Aufnahme auf die Warteliste Leber bei alkoholbedingter Leberzirrhose stieß auf große Zustimmung bei den Befragten. Die Ergebnisse der Umfrage legen nahe, dass Vertrauen in die Ärzte bezüglich der Schaffung gerechter Allokationsregeln besteht und lassen auf eine breite Zustimmung zu dem aktuellen Verteilungssystem in der Lebertransplantation schließen.
On transient-flows of the Ostwald-de Waele fluids-transport in the Darcy-Brinkman porous medium
Authors: Siddiqui Abuzar Abid
Published: July 2017

This paper presents the mathematical formulation of the pulsatile motion of an Ostwald-de Waele (OdW) fluid in the circular-annular duct and the rectangular channel filled with the Darcy-Brinkman porous material/medium. The Ostwald-de Waele fluid model, modified for the Darcy-Brinkman medium, is used to get the boundary value problems (BVPs). These BVPs contain non-linear partial differential equations (PDEs). These PDEs are further transformed to the ordinary differential equations (ODEs) on using the pulsatile-transformation. The ODEs are solved numerically for different values of OdW-index. However, the exact solutions are also derived for one of the shear-thickening fluids (e.g., p = 2) and the Newtonian fluids (p = 1) in order to validate the numerical results. The numerical results are also compared with the existing or present-derived-analytical solution for the Newtonian fluids. It is observed that the porosity, the permeability and the frequency influence on the fluid-speed, the discharge and the stresses. The fact of relation of the permeability to the porosity is not only valid for the Darcian but also for the Darcy-Brinkman medium. The permeability decreases as the porosity decreases only for shear thinning fluids (p < 1). The imposed pulsatile pressure-gradient results the oscillatory ambient fluid-flow for both the geometries (circular-annular duct and rectangular channel). The radial normal stress is dominant in annular duct whereas the shear stress is significant in rectangular channel.
New Products
Authors: Mandelis Andreas
Published: July 2017

In order to supplement manufacturers’ information, this Department will welcome the submission by our readers of brief communications reporting measurements on the physical properties of materials which supersede earlier data or suggest new research applications.
The mesoscopic membrane with proteins (MesM-P) model
Authors: Davtyan Aram , Simunovic Mijo , Voth Gregory A.
Published: July 2017

We present the Mesoscopic Membrane with Proteins (MesM-P) model, an extension of a previously developed elastic membrane model for mesoscale simulations of lipid membranes. MesM-P employs a discrete mesoscopic quasi-particle approach to model protein-facilitated shape and topology changes of the lipid membrane on length and time scales inaccessible to all-atom and quasimolecular coarse-grained molecular dynamics simulations. We investigate the ability of MesM-P to model the behavior of large lipid vesicles as a function of bound protein density. We find four distinct mechanisms for protein aggregation on the surface of the membrane, depending on membrane stiffness and protein spontaneous curvature. We also establish a connection between MesM-P and the results of higher resolution coarse-grained molecular dynamics simulations.
A portable methane sampling system for radiocarbon-based bioportion measurements and environmental CH4 sourcing studies
Authors: Palonen V. , Uusitalo J. , Seppälä E. , Oinonen M.
Published: July 2017

Radiocarbon measurements can be used to deduce the proportion of renewable to fossil carbon in materials. While these biofraction measurements are performed routinely on solid and liquid substances, measurements of gaseous samples, such as methane, are still scarce. As a pioneering effort, we have developed a field-capable sampling system for the selective capture of CH4 for radiocarbon-concentration measurements. The system allows for biofraction measurements of methane by accelerator mass spectrometry. In environmental research, radiocarbon measurements of methane can be used for fingerprinting different sources of methane emissions. In metrology and industry, biofraction measurements can be utilized to characterize biogas/natural gas mixtures within gas-line networks. In this work, the portable sampling system is described in detail and reference measurements of biofractions of gaseous fuel samples are presented. Low-concentration (1-ppm-CH4) sampling for environmental applications appears feasible but has not been fully tested at present. This development allows for multitude of future applications ranging from Arctic methane emissions to biogas insertion to gas networks.
Explicit and efficient discrete energy-averaged model for Terfenol-D
Authors: Deng Zhangxian
Published: July 2017

The axis of most commercially available bulk Terfenol-D rods is misaligned with the pseudo-cubic Terfenol-D crystals. Thus, the development of efficient and accurate constitutive models for Terfenol-D has traditionally been challenging. This study presents a fully coupled and efficient discrete energy-averaged model that describes the nonlinear magnetostrictive behavior of Terfenol-D. The model is built on the basis of the Stoner-Wohlfarth particle approximation, where the anhysteresis bulk response of magnetostrictive materials is considered as a weighted sum of local magnetic domain responses and the material hysteresis is defined by an evolution function for the weights. The local responses are explicitly calculated through minimizing the free energy of individual magnetic domains; the weights, also known as the domain volume fractions, are described by an energy-based Boltzmann distribution. Advanced computation algorithms are developed to further improve the model efficiency. The model is used to interpret magnetic flux density and strain measurements from multiple [112]-oriented Terfenol-D rods. According to the modeling results, the explicit constitutive model developed in this study is three to five times faster than the previous implicit discrete energy-averaged model while preserving accuracy.
An adaptive solution to the chemical master equation using tensors
Authors: Vo Huy D. , Sidje Roger B.
Published: July 2017

Solving the chemical master equation directly is difficult due to the curse of dimensionality. We tackle that challenge by a numerical scheme based on the quantized tensor train (QTT) format, which enables us to represent the solution in a compressed form that scales linearly with the dimension. We recast the finite state projection in this QTT framework and allow it to expand adaptively based on proven error criteria. The end result is a QTT-formatted matrix exponential that we evaluate through a combination of the inexact uniformization technique and the alternating minimal energy algorithm. Our method can detect when the equilibrium distribution is reached with an inexpensive test that exploits the structure of the tensor format. We successfully perform numerical tests on high-dimensional problems that had been out of reach for classical approaches.
Enlarged read window in the asymmetric ITO/HfOx/TiN complementary resistive switch
Authors: Zhang H. Z. , Ang D. S. , Zhou Y. , Wang X. P.
Published: July 2017

The narrow read-window of most complementary resistive switches proposed to-date poses a significant challenge to array level implementation, as inherent variations in the set and reset voltages result in an unacceptably small read margin. In this work, we present the asymmetrical ITO/HfOx/TiN complementary resistive switch, with a significantly enlarged positive read window of 1.6 V as compared to the much narrower window of 0.5 V of the symmetrical TiN/HfOx/TiN switch. A read margin of 1.1 V is obtained after accounting for statistical variations, representing a significant improvement over the 0.1 V margin of the symmetrical counterpart. Analyses show that the enlarged read window may be ascribed to two important attributes: (1) the stronger affinity of ITO for oxygen, which leads to a reduced positive set voltage and (2) a larger work function of the ITO, resulting in an increase in the positive reset voltage.
Note: Infrared laser diagnostics for deuterium gas puff Z pinches
Authors: Ivanov V. V. , McKee E. S. , Hammel B. D. , Darling T. W. , Swanson K. J. , Covington A. M.
Published: July 2017

Deuterium gas puff Z pinches have been used for generation of strong neutron fluxes on the MA class pulse power machines. Due to the low electron density of deuterium Z-pinch plasma, regular laser diagnostics in the visible range cannot be used for observation and study of the pinch. Laser probing at the wavelength of 1064 nm was used for visualization of deuterium plasma. Infrared schlieren and interferometry diagnostics showed the deuterium gas puff plasma dynamics, instabilities, and allowed for the reconstruction of the profile of the plasma density.
Controlling stimulated Raman scattering by two-color light in inertial confinement fusion
Authors: Liu Z. J. , Chen Y. H. , Zheng C. Y. , Cao L. H. , Li B. , Xiang J. , Hao L. , Lan K.
Published: July 2017

A method is proposed to control the stimulated Raman scattering in the inertial confinement fusion by using auxiliary 2ω light to suppress the stimulated Raman scattering of the 3ω light. In this scheme, inverse bremsstrahlung absorption and parametric instabilities in the 2ω light increase the electron temperature and the plasma-density fluctuation, thus preventing the development of Raman scattering of the 3ω light. This scheme is successfully demonstrated by both one-dimensional kinetic simulations and two-dimensional radiative hydrodynamic simulations. The one-dimensional Vlasov results show that the time-averaged transmissivity of the 3ω light increases from 0.75 to 0.95 under certain conditions. Results obtained using the particle-in-cell method with Monte Carlo collisions show that the electron temperature is greatly increased with the increasing intensity of the 2ω light. The two-dimensional radiative hydrodynamic simulation results show that the electron temperature increases from 3.2 keV to 3.5 keV, and the time-averaged backscattering level decreases from 0.28 to 0.1 in the presence of the auxiliary 2ω light.
Discharge state transition and cathode fall thickness evolution during chromium HiPIMS discharge
Authors: Zuo Xiao , Ke Peiling , Chen Rende , Li Xiaowei , Odén Magnus , Wang Aiying
Published: July 2017

The temporal evolutions of target voltage and current waveforms under different pulse voltage and working pressure conditions were studied during Cr high power impulse magnetron sputtering discharges. Target voltage and current characteristics demonstrated that when the pulse width was set as 200 μs, HiPIMS discharge went through a four-stage sequence during each pulse, Townsend discharge, glow discharge, afterglow, and pulse-off stages. A discharge state transition in the glow discharge stage happened at high pulse voltage and working pressure conditions. Furthermore, the dependence of reduced cathode fall thickness pdc on pulse voltage, working pressure, and normalized current density j/p2 was presented. It was found that gas rarefaction leads to a change of relationship between pdc and j/p2. A noticeable increase of the cathode fall thickness caused by gas rarefaction has been found.
Superconducting noise bolometer with microwave bias and readout for array applications
Authors: Kuzmin A. A. , Semenov A. D. , Shitov S. V. , Merker M. , Wuensch S. H. , Ustinov A. V. , Siegel M.
Published: July 2017

We present a superconducting noise bolometer for terahertz radiation, which is suitable for large-format arrays. It is based on an antenna-coupled superconducting micro-bridge embedded in a high-quality factor superconducting resonator for a microwave bias and readout with frequency-division multiplexing in the GHz range. The micro-bridge is kept below its critical temperature and biased with a microwave current of slightly lower amplitude than the critical current of the micro-bridge. The response of the detector is the rate of superconducting fluctuations, which depends exponentially on the concentration of quasiparticles in the micro-bridge. Excess quasiparticles are generated by an incident THz signal. Since the quasiparticle lifetime increases exponentially at lower operation temperature, the noise equivalent power rapidly decreases. This approach allows for large arrays of noise bolometers operating above 1 K with sensitivity, limited by 300-K background noise. Moreover, the response of the bolometer always dominates the noise of the readout due to relatively large amplitude of the bias current. We performed a feasibility study on a proof-of-concept device with a 1.0 × 0.5 μm2 micro-bridge from a 9-nm thin Nb film on a sapphire substrate. Having a critical temperature of 5.8 K, it operates at 4.2 K and is biased at the frequency 5.6 GHz. For the quasioptical input at 0.65 THz, we measured the noise equivalent power ≈3 × 10−12 W/Hz1/2, which is close to expectations for this particular device in the noise-response regime.
Electromagnetic induced voltage signal to magnetic variation through torquing textured Fe81Ga19 alloy
Authors: Li Mingming , Li Jiheng , Bao Xiaoqian , Mu Xing , Gao Xuexu
Published: July 2017

The results of a study on the suitability of Fe-Ga alloys for torque sensor applications are presented. A Fe81Ga19 rod with a ⟨100⟩ preferred orientation along the length direction is prepared for the torque shaft and as the electromagnetic induction sensitive element, which is wound with three coils for signal excitation, signal pickup, and applied bias magnetic field, respectively. An apparent decrease in the induced voltage signal (peak voltage) of 3.88 mV is observed as the torque loading is 50 N m in the presence of a sine excitation signal (10 V, 1 kHz) and a bias current of 0.5 A. Meanwhile, a good repeatability and stress sensitivity are obtained, especially in the low torque range. These behaviors stem from the stress induced decrease in the magnetic permeability and the rotation of the arranged magnetic moment. Here, we use the Fe81Ga19 alloy as the shaft material; nevertheless, in practical use, the same effect can be achieved by forming a Fe-Ga layer with large magnetostriction on the surface of the torsion shaft. This work shows the prospect of Fe-Ga alloys for non-contact torque sensing, for the large magnetostriction and high sensitivity of magnetization to stress.
Skill sharing and delegation practice in two Queensland regional allied health cancer care services: a comparison of tasks
Authors: Passfield Juanine , Nielsen Ilsa , Brebner Neil , Johnstone Cara
Published: July 2017

Objective
Delegation and skill sharing are emerging service strategies for allied health (AH) professionals working in Queensland regional cancer care services. The aim of the present study was to describe the consistency between two services for the types and frequency of tasks provided and the agreement between teams in the decision to delegate or skill share clinical tasks, thereby determining the potential applicability to other services.

Methods
Datasets provided by two similar services were collated. Descriptive statistical analyses were used to assess the extent of agreement.

Results
In all, 214 tasks were identified as being undertaken by the services (92% agreement). Across the services, 70 tasks were identified as high frequency (equal to or more frequently than weekly) and 29 as not high frequency (46% agreement). Of the 68 tasks that were risk assessed, agreement was 66% for delegation and 60% for skill sharing, with high-frequency and intervention tasks more likely to be delegated.

Conclusions
Strong consistency was apparent for the clinical tasks undertaken by the two cancer care AH teams, with moderate agreement for the frequency of tasks performed. The proportion of tasks considered appropriate for skill sharing and/or delegation was similar, although variation at the task level was apparent. Further research is warranted to examine the range of factors that affect the decision to skill share or delegate.

What is known about the topic?
There is limited research evidence regarding the use of skill sharing and delegation service models for AH in cancer care services. In particular, the extent to which decisions about task safety and appropriateness for delegation or skill sharing can be generalised across services has not been investigated.

What does this paper add?
This study investigated the level of clinical task consistency between two similar AH cancer care teams in regional centres. It also examined the level of agreement with regard to delegation and skill sharing to provide an indication of the level of local service influence on workforce and service model decisions.

What are the implications for practitioners?
Local factors have a modest influence on delegation and skill sharing decisions of AH teams. Practitioners need to be actively engaged in decision making at the local level to ensure the clinical service model meets local needs. However, teams should also capitalise on commonalities between settings to limit duplication of training and resource development through collaborative networks.
Thermogenesis and developmental progression of Macrozamia macleayi pollen cones
Authors: Roemer R. B. , Booth D. , Terry L. I. , Walter G. H.
Published: July 2017

Macrozamia macleayi Miq. (family Zamiaceae) pollen cones generate high thermogenic temperatures that are crucial to pollination of these dioecious plants. However, cone thermal behaviour has not been characterised with respect to developmental stage, so any links with the progression and development of their pollination processes remain unclear. Here we show that after growing to full girth, cones progress through thermally active stages of slow/no growth, rapid lengthening, dehiscence and early post-dehiscence, each with a distinct thermal response. During slow/no growth cones exhibit a small late afternoon peak thermogenic temperature elevation above peak ambient, and remain elevated overnight. During rapid lengthening the late afternoon/night-time temperature elevations disappear, and mid-day thermogenesis commences. During dehiscence the midday cone temperature elevations become large, approaching 10°C near the day of maximum dehiscence rate, and then decrease daily. Pollen cones generate their large, dehiscence stage thermogenic temperature elevations synchronously with the diel ambient temperature peak, thus maximising the peak cone temperature. This likely enhances the expulsion of their pollen bearing obligate mutualist thrips pollinator, thus boosting pollination rates. Thermogenic events are fuelled by carbohydrates only, and significantly increase the pollen cone water loss – yet the percentage of water in sporophylls remains nearly constant (~63%) throughout all developmental stages. Similar coordinated pollen cone developmental stage and thermogenic responses are also present in Cycas micronesica K.D. Hill (family Cycadaceae), suggesting a conserved physiological response across cycad families.