bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemisch gesteuerte schrittweise Entfaltung von Einzelketten‐ Nanopartikeln
Authors: Fischer Tobias S. , Schulze‐Sünninghausen David , Luy Burkhard , Altintas Ozcan , Barner‐Kowollik Christopher 
Published: June 2016

AbstractDie vorliegende Studie beschreibt die stufenweise, orthogonale und gleichzeitig pfadunabhängige Entfaltung von Einzelketten‐Nanopartikeln (ENPs), um aktive Kontrolle über die Faltungsdynamik von ENPs zu erlangen. Die Kompaktierung der NPs erfolgt zum einen über Wasserstoffbrücken und zum anderen durch Wirt‐Gast‐Wechselwirkungen. Um den Entfaltungsprozess zu untersuchen, wurden engverteilte Diblock‐ (AB) und Tetrablockcopolymere (ABCD) synthetisiert, welche orthogonale Faltungsmotive entlang der lateralen Kette beinhalten. In einem ersten Schritt wurde die Einzelkettenfaltung des AB‐Diblockcopolymersystems durch eine Wirt‐Gast‐Wechselwirkung von Benzo‐21‐Krone‐7 (B21K7, Wirt) mit einem sekundären Ammoniumsalz (AS, Gast) ausgelöst. Anschließend wurden die zwei orthogonalen Motive, bestehend aus Hamilton‐Wedge/Cyanursäure und B21K7/AS, in das Tetrablockcopolymersystem eingebaut. Zuletzt wurde, durch Zugabe spezieller Substrate, die orthogonale, stufenweise und pfadunabhängige Entfaltung der ENPs ausgelöst und untersucht. Die Faltung und Entfaltung wurde durch 1D‐1H‐NMR‐Spektroskopie, dynamische Lichtstreuung (DLS) und diffusionsgeordnete NMR‐Spektroskopie (DOSY) charakterisiert und nachgewiesen.
A Titanium‐Doped SiOx Passivation Layer for Greatly Enhanced Performance of a Hematite‐Based Photoelectrochemical System
Authors: Ahn Hyo‐Jin , Yoon Ki‐Yong , Kwak Myung‐Jun , Jang Ji‐Hyun 
Published: June 2016

AbstractThis study introduces an in situ fabrication of nanoporous hematite with a Ti‐doped SiOx passivation layer for a high‐performance water‐splitting system. The nanoporous hematite with a Ti‐doped SiOx layer (Ti‐(SiOx/np‐Fe2O3)) has a photocurrent density of 2.44 mA cm−2 at 1.23 VRHE and 3.70 mA cm−2 at 1.50 VRHE. When a cobalt phosphate co‐catalyst was applied to Ti‐(SiOx/np‐Fe2O3), the photocurrent density reached 3.19 mA cm−2 at 1.23 VRHE with stability, which shows great potential of the use of the Ti‐doped SiOx layer with a synergistic effect of decreased charge recombination, the increased number of active sites, and the reduced hole‐diffusion pathway from the hematite to the electrolyte.
Fluorine‐Doped Antiperovskite Electrolyte for All‐Solid‐State Lithium‐Ion Batteries
Authors: Li Yutao , Zhou Weidong , Xin Sen , Li Shuai , Zhu Jinlong , Lü Xujie , Cui Zhiming , Jia Quanxi , Zhou Jianshi , Zhao Yusheng , Goodenough John B. 
Published: June 2016

AbstractA fluorine‐doped antiperovskite Li‐ion conductor Li2(OH)X (X=Cl, Br) is shown to be a promising candidate for a solid electrolyte in an all‐solid‐state Li‐ion rechargeable battery. Substitution of F− for OH− transforms orthorhombic Li2OHCl to a room‐temperature cubic phase, which shows electrochemical stability to 9 V versus Li+/Li and two orders of magnitude higher Li‐ion conductivity than that of orthorhombic Li2OHCl. An all‐solid‐state Li/LiFePO4 with F‐doped Li2OHCl as the solid electrolyte showed good cyclability and a high coulombic efficiency over 40 charge/discharge cycles.
Janus Membranes: Exploring Duality for Advanced Separation
Authors: Yang Hao‐Cheng , Hou Jingwei , Chen Vicki , Xu Zhi‐Kang 
Published: June 2016

AbstractJanus membranes are an emerging class of materials having opposing properties at an interface. This structure results in selective and often novel transport characteristics. In this Minireview, a definition of the Janus membrane, beyond merely asymmetric materials, is introduced and common fabrication strategies are outlined. Also presented are current and potential applications in directional transport, switchable permeation, and performance optimization with detailed mechanisms.
Tribological investigations of carbon nanotube‐reinforced polymer (UHMWPE) nanocomposites using Taguchi methodology
Authors: Lawal Dahiru , Bin Ali Annas , Mohammed Abdul Samad 
Published: June 2016

ABSTRACTTaguchi design techniques have been applied to investigate the significant influence of various operating and design parameters, such as contact load, rotational sliding speed, and carbon nanotubes (CNTs) concentration on the tribological properties of ultra‐high molecular weight polyethylene nanocomposites. Analysis of variance was conducted to discuss the significance of each of the parameters. Simple regression models were developed for wear rate as well as for the coefficient of friction (COF) of the nanocomposite. Applied normal force was found to be the dominant factor controlling the wear rate and friction coefficient. The significance of CNTs concentration on both COF and wear rate closely follow that of applied load. Rotational sliding speed has the least influence on the tribological properties of the nanocomposite. The developed model for predicting wear rate and the COF was found to give very good predictions against the experimental data. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44018.
Performance assessment of protein electrophoresis by using polyacrylamide hydrogel with porous structure modified with SDS micelles as template
Authors: Carranza‐Oropeza M. Verónica , Sherrill Alexander W. , Sanders J. Robby , Arce Pedro E. , Giudici Reinaldo 
Published: June 2016

ABSTRACTSeparation processes are routinely used worldwide in biotechnology, chemical processing, wastewater treatment, and myriad other areas. Gel electrophoresis has been used for decades as a standard technique to separate charged biopolymers, such as DNA, RNA, and proteins. In this research, polyacrylamide hydrogels were synthesized in the presence of sodium dodecyl sulfate (SDS) micelles as nanotemplating agents in an effort to modify the internal porous microstructure of the gels. After removing these agents via a combination of passive and facilitated means, the gels were used during electrophoresis in order to assess the effects of its modified porous microstructure on protein separations. The results revealed that hydrogels containing 9% acrylamide and templated with SDS micelles in a 5–15% concentration range were the most effective materials in separating proteins in a range of 10–250 kDa. As expected, standard, nontemplated gels also resulted in separation of the proteins but not to the same extent as with the templated hydrogels. In summary, this research highlights the important role of the templating agent as possible useful tuning factors for achieving electrophoresis‐based separation. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2016,133, 44063.
Effect of rubber interparticle distance distribution on toughening behavior of thermoplastic polyolefin elastomer toughened polypropylene
Authors: Fasihi Mohammad , Mansouri Hossein 
Published: June 2016

ABSTRACTIn this study, a blend of polypropylene (PP) and two types of thermoplastic polyolefin elastomers (TPO) were prepared by melt mixing. The TPOs were either ethylene‐ or propylene‐based copolymer. The mechanical response and morphology of the blends were investigated using tensile and impact tests and scanning electron microscopy technique. There was significant increase in the impact strength of the TPO‐modified PP, which was an outcome of fine dispersion of TPO inclusions. In particular, the blends containing PP‐based TPO exhibited dramatic enhancement in toughness energy as featured by a plastic deformation in tensile test. The brittle‐tough transition had several deviations from theoretical models, in which generally the interparticle distance criterion was realized as a single parameter, only controlled the transition of brittle to tough behavior. Moreover, the brittle‐tough transition in tensile and impact mode tests was not coincident in the blend with a broad distribution of interparticle distance. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44068.
New Class of Hydrido Iron(II) Compounds with cis‐Reactive Sites: Combination of Iron and Diphosphinodithio Ligand
Authors: Liu Jianguo , Zhang Fanjun , Zhang Ailing , Tong Qingxiao , Tung Chen‐Ho , Wang Wenguang 
Published: June 2016

AbstractThe cationic complex [Fe(P2S2)(NCMe)2]2+ (P2S2=(Ph2PC6H4CH2S)2(C2H4) ([1(NCMe)2]2+)), with two MeCN ligands in a cis orientation, was synthesized and characterized. The MeCN ligand in [1(NCMe)2]2+ undergoes further substitution by a hydride ligand or CO to give iron(II) hydrides [H1(NCMe)]+, [H1H]0, and [H1(CO)]+. The order of reactivity of the hydrides was [H1H]0>[H1(NCMe)]+>[H1(CO)]+, and was illustrated by their reactions toward protic acids, the organic cation of 10‐methylacridinium (MeAcr+) as a hydride acceptor, and intermolecular hydride transfer reactions among these ferrous compounds. For example, MeAcr+ was reduced initially by a one‐electron transfer process from [H1H]0, resulting in competing reactions of MeAcr. dimerization, hydrogen atom transfer from [H1H]+ to MeAcr., and decomposition of [H1H]+. MeAcrH was produced in excellent yields through a single‐step H− transfer from [H1(NCMe)]+ to MeAcr+, but [H1(CO)]+ was inactive toward MeAcr+.
Hydrothermal synthesis for high‐quality glutathione‐capped CdxZn1 – xSe and CdxZn1 – xSe/ZnS alloyed quantum dots and its application in Hg(II) sensing
Authors: Lai Lu , Sheng Si‐Yu , Mei Ping , Liu Yi , Guo Qing‐Lian 
Published: June 2016

AbstractHigh‐quality CdxZn1 – xSe and CdxZn1 – xSe/ZnS core/shell quantum dots (QDs) emitting in the violet–green spectral range have been successfully prepared using hydrothermal methods. The obtained aqueous CdxZn1 – xSe and CdxZn1 – xSe/ZnS QDs exhibit a tunable photoluminescence (PL) emission (from 433.5 nm to 501.2 nm) and a favorable narrow photoluminescence bandwidth [full width at half maximum (FWHM): 30–42 nm]. After coating with a ZnS shell, the quantum yield increases from 40.2% to 48.1%. These CdxZn1 – xSe and CdxZn1 – xSe/ZnS QDs were characterized by transmission electron microscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy and Fourier transform infrared (FTIR) spectroscopy. To further understand the alloying mechanism, the growth kinetics of CdxZn1 – xSe were investigated through measuring the fluorescence spectra and X‐ray diffraction spectra at different growth intervals. The results demonstrate that the inverted ZnSe/CdSe core/shell structure is formed initially after the injection of Cd2+. With further heating, the core/shell structured ZnSe/CdSe is transformed into alloyed CdxZn1 – xSe QDs with the diffusion of Cd2+ into ZnSe matrices. With increasing the reaction temperature from 100 °C to 180 °C, the duration time of the alloying process decreases from 210 min to 20 min. In addition, the cytotoxicity of CdxZn1 – xSe and CdxZn1 – xSe/ZnS QDs were investigated. The results indicate that the as‐prepared CdxZn1 – xSe/ZnS QDs have low cytotoxicity, which makes them a promising probe for cell imaging. Finally, the as‐prepared CdxZn1 – xSe/ZnS QDs were utilized to ultrasensitively and selectively detect Hg2+ ions with a low detection limit (1.8 nM).
A Density Functional Theory Study on the Ligand Substitution Mechanism of a Square Planar Pd Complex
Authors: Park Ji Eun , Kang Youn Kyung 
Published: June 2016

The mechanisms of ligand substitution reactions of PdCl2
(CH3CN)2 with PPh3
and P(OPh)3 ligands were investigated by computational calculations using density functional theory (DFT). Contrary to the conventional associative mechanism of a 16‐electron Pd complex, substitutions of two acetonitrile ligands in PdCl2
(CH3CN)2 with PPh3
or P(OPh)3 adopt dissociative pathways. The first PdCl2
(CH3CN)2 + PPh3
→ PdCl2
(CH3CN)(PPh3
) + CH3CN step takes I
d mechanism and the following PdCl2
(CH3CN)(PPh3
) → PdCl2
(PPh3
)2 + CH3CN step does D mechanism. The overall free energy barriers (ΔG
max
‡) of two separate steps were 26.4 and 20.4 kcal/mol, respectively. Similar reaction with P(OPh)3 ligands takes D mechanism for both first and second substitutions with ΔG
max
‡ values of 30.3 and 21.0 kcal/mol, respectively.
Embedding responsible conduct in learning and research into an Australian undergraduate curriculum
Authors: Fernandes Lynette B 
Published: June 2016

AbstractResponsible conduct in learning and research (RCLR) was progressively introduced into the pharmacology curriculum for undergraduate science students at The University of Western Australia. In the second year of this undergraduate curriculum, a lecture introduces students to issues such as the use of animals in teaching and responsible conduct of research. Third year student groups deliver presentations on topics including scientific integrity and the use of human subjects in research. Academic and research staff attending these presentations provide feedback and participate in discussions. Students enrolled in an optional capstone Honours year complete an online course on the responsible conduct of research and participate in an interactive movie. Once RCLR became established in the curriculum, a survey of Likert‐scaled and open‐ended questions examined student and staff perceptions. Data were expressed as Approval (% of responses represented by Strongly Agree and Agree). RCLR was found to be relevant to the study of pharmacology (69–100% Approval), important for one's future career (62–100% Approval), and stimulated further interest in this area (32–75% Approval). Free entry comments demonstrated the value of RCLR and constructive suggestions for improvement have now been incorporated. RCLR modules were found to be a valuable addition to the pharmacology undergraduate curriculum. This approach may be used to incorporate ethics into any science undergraduate curriculum, with the use of discipline‐specific topics. © 2016 by The International Union of Biochemistry and Molecular Biology, 45(1):53–59, 2017.
Oncologists' perceived barriers to an expanded role for primary care in breast cancer survivorship care
Authors: Neuman Heather B. , Jacobs Elizabeth A. , Steffens Nicole M. , Jacobson Nora , Tevaarwerk Amye , Wilke Lee G. , Tucholka Jennifer , Greenberg Caprice C. 
Published: June 2016

AbstractConcern exists about the sustainability of traditional, oncologist‐led models of breast cancer survivorship care. However, many oncologists are hesitant about deferring survivorship care to primary care providers (PCPs). Our objective was to examine oncologists' perceptions of the role PCPs play in breast cancer survivorship and the rationale underlying these perceptions. One‐on‐one interviews with medical, radiation, and surgical oncologists in Wisconsin were conducted (n = 35) and transcribed. Data analysis was performed using an inductive approach to content analysis. Oncologist‐perceived barriers included: PCP's level of experience with cancer care; Lack of PCP comfort in providing survivorship care; Existing demands on PCPs' time; Patient preference for oncology‐led survivorship care. Oncologists described familiarity and trust in individual PCPs as factors that could mitigate barriers and lead to increased PCP involvement in survivorship care. Although a number of perceived barriers to PCP participation in survivorship were identified by Wisconsin oncologists, our findings support the direction of ongoing initiatives to facilitate PCP involvement. Our findings also suggest that early PCP involvement in survivorship may increase PCP comfort and patients' trust in PCPs in this role. The identified barrier most challenging to address may be the limited capacity of the current primary care system to manage follow‐up for breast cancer survivors.
An fMRI study of advertising appeals and their relationship to product attractiveness and buying intentions
Authors: Chang Hyo Jung (Julie) , O'Boyle Michael , Anderson Ronald C. , Suttikun Chompoonut 
Published: June 2016

AbstractThis study examines the effects of various visual apparel advertisements on consumers' brain activation during exposure to different types of advertising appeals (i.e., celebrity, non‐celebrity, and rational). The influence on consumer perceptions of products and their subsequent buying intentions are also measured. A repeated measures experimental design was employed, and the total of 27 right‐handed female subjects participated in the study. The results of the quantitative data showed significant differences in perceived product attractiveness for each of the three types of advertising appeals, but not in buying intentions. Regarding the fMRI results, our findings support the notion that celebrity advertising appeals are associated with heightened brain activation of memory‐related/retrieval regions, reflecting how consumers remember the ad and are influenced by the attractiveness of the source. Non‐celebrity advertising appeals were more closely associated with brain activation of regions thought to mediate self‐reflection and also engaging executive functions. For rational advertising appeals, our findings showed significant activation in brain areas associated with logical evaluative decision making reflecting more logical processing value assessments and reward potential. Therefore, retailers/marketers must be particularly mindful to match the appropriate advertising appeal to the specific purpose of the advertisement. This study also provides brain‐based insight into the effectiveness of different types of advertising appeals and whether or not they have the desired impact on the consumer. Copyright © 2016 John Wiley & Sons, Ltd.
Sequence‐Specific DNA Photosplitting of Crosslinked DNAs Containing the 3‐Cyanovinylcarbazole Nucleoside by Using DNA Strand Displacement
Authors: Nakamura Shigetaka , Kawabata Hayato , Fujimoto Kenzo 
Published: June 2016

AbstractAn oligodeoxynucleotide (ODN) containing the ultrafast reversible 3‐cyanovinylcarbazole (CNVK) photo‐crosslinker was photo‐crosslinked to a complementary strand upon exposure to 366 nm irradiation and photosplit by use of 312 nm irradiation. In this paper we report that the photoreaction of CNVK on irradiation at 366 nm involves a photostationary state and that its reaction can be controlled by temperature. Guided by this new insight, we proposed and have now demonstrated previously unknown photosplitting of CNVK aided by DNA strand displacement as an alternative to heating. The photo‐crosslinked double‐stranded DNA (dsDNA) underwent >80 % photosplitting aided by DNA strand displacement on irradiation at 366 nm without heating. In this photosplitting based on DNA strand displacement, the relative thermal stability of the invader strand with respect to the template strands plays an important role, and an invader strand/template strand system that is more stable than the passenger strand/template strand system induces photosplitting without heating. This new strand‐displacement‐aided photosplitting occurred in a sequence‐specific manner through irradiation at 366 nm in the presence of an invader strand.
Combined effects of proinflammatory cytokines and intermittent cyclic mechanical strain in inhibiting osteogenicity in human periodontal ligament cells
Authors: Sun Chaofan , Chen Lijiao , Shi Xinlian , Cao Zhensheng , Hu Bibo , Yu Wenbin , Ren Manman , Hu Rongdang , Deng Hui 
Published: June 2016

AbstractMechanical strain plays an important role in bone formation and resorption during orthodontic tooth movement. The mechanism has not been fully studied, and the process becomes complex with increased amounts of periodontal patients seeking orthodontic care. Our aims were to elucidate the combined effects of proinflammatory cytokines and intermittent cyclic strain (ICS) on the osteogenic capacity of human periodontal ligament cells. Cultured human periodontal ligament cells were exposed to proinflammatory cytokines (interleukin‐1β 5 ng/mL and tumor necrosis factor‐α 10 ng/mL) for 1 and 5 days, and ICS (0.5 Hz, 12% elongation) was applied for 4 h per day. The autocrine of inflammatory cytokines was measured by enzyme‐linked immunosorbent assay. The expression of osteoblast markers runt‐related transcription factor 2 and rabbit collagen type I was determined using real‐time polymerase chain reaction and Western blot. The osteogenic capacity was also detected by alkaline phosphatase (ALP) staining, ALP activity, and alizarin red staining. We demonstrated that ICS impaired the osteogenic capacity of human periodontal ligament cells when incubated with proinflammatory cytokines, as evidenced by the low expression of ALP staining, low ALP activity, reduced alizarin red staining, and reduced osteoblast markers. These data, for the first time, suggest that ICS has a negative effect on the inductive inhibition of osteogenicity in human PDL cells mediated by proinflammatory cytokines.
Failed conservative management of a case of aplasia cutis congenita in a low‐income country
Authors: Wingi Olivier , Cappellesso Rocco , Arego Raul , Cuppini Elena , Muhelo Arlindo , Putoto Giovanni , Da Dalt Liviana , Pizzol Damiano 
Published: June 2016

Key Clinical MessageAplasia cutis congenita is a rare disease characterized by absence of skin layers. Usually the scalp is affected, but the whole body can be involved. We report extensive aplasia of a baby born of a HIV‐positive mother taking antiretroviral drugs. Conservative treatment was not enough to ensure her survival.
Sigmoid volvulus in pregnancy: case report and review of literature
Authors: Serafeimidis Costas , Waqainabete Ifereimi , Creaton Anne , Vakamacawai Esala , Kumar Ronal 
Published: June 2016

Key Clinical MessageSigmoid volvulus in pregnancy is a very rare condition. Despite this, clinicians should have a high index of suspicion of this condition if they encounter a pregnant woman with symptoms suggestive of bowel obstruction. Incorrect diagnosis may be catastrophic, resulting in major complications, including fetal and maternal death.
A case of endocervical adenocarcinoma detected 16 months after vaginal delivery
Authors: Ulu İpek , Haberal Esra Tuştaş , Gülşen Mehmet Serdar , Yoğurtçuoğlu Eser Evrim , Kıran Gürkan , Çekmez Yasemin , Kır Gözde 
Published: June 2016

Key Clinical MessageThe “rapid‐onset” cervical carcinoma is described as the diagnosis of invasive cervical carcinoma within 3 years of a “normal” Pap smear and it is a rare entity. In our case, we aimed to draw attention toward rapid progression of these endocervical adenocarcinomas to macroscopic sizes.
Effect of Polarisation Mimicking Cathodic Electrodeposition Coating on Industrially Relevant Metal Substrates with ZrO2‐Based Conversion Coatings
Authors: Sarfraz Adnan , Posner Ralf , Bashir Asif , Topalov Angel , Mayrhofer Karl J. J. , Lill Kirsten , Erbe Andreas 
Published: June 2016

AbstractModern ZrO2‐based conversion coatings were deposited on an aluminium alloy (AA6014), a cold‐rolled steel, a zinc electrogalvanised steel and a Sendzimir zinc hot‐dip galvanised steel. Pretreated substrates were subjected to galvanostatic polarisation in aqueous NaNO3 to mimic deposition conditions of cathodic electrodeposition coatings. No significant structural modification of the conversion coatings was found with Raman or photoluminescence (PL) spectroscopy. After treatment, increased PL indicated an increased number of point defects. Downstream monitoring of dissolved Zr indicated an insignificant totally dissolved fraction of 0.01 % after 5 s of polarisation, which may occur through vacancy‐pair coalescence with concurrent oxide dissolution, as discussed for transpassive dissolution. Overall, the ZrO2 films remained intact after polarisation.