bluuebunny/crossref_metadata_2025 huggingface dataset:
Monitoring spawning migrations of potamodromous fish species via eDNA
Authors: Thalinger Bettina , Wolf Elisabeth , Traugott Michael , Wanzenböck Josef
Published: October 2019

Potamodromous fish are considered important indicators of habitat connectivity in freshwater ecosystems, but they are globally threatened by anthropogenic impacts. Hence, non-invasive techniques are necessary for monitoring during spawning migrations. The use of environmental DNA (eDNA) potentially facilitates these efforts, albeit quantitative examinations of spawning migrations remain so far mostly uncharted. Here, we investigated spawning migrations of Danube bleak, Alburnus mento, and Vimba bream, Vimba vimba, and found a strong correlation between daily visual fish counts and downstream eDNA signals obtained from filtered water samples analysed with digital PCR and end-point PCR coupled with capillary electrophoresis. By accounting for daily discharge fluctuations, it was possible to predict eDNA signal strength from the number of migrating fish: first, the whole spawning reach was taken into account. Second, the model was validated using eDNA signals and fish counts obtained from the upper half of the examined river stretch. Consequently, fish counts and their day-to-day changes could be described via an eDNA-based time series model for the whole migration period. Our findings highlight the capability of eDNA beyond delivering simple presence/absence data towards efficient and informative monitoring of highly dynamic aquatic processes such as spawning migrations of potamodromous fish species.
Fractal nature of groundwater level fluctuations affected by riparian zone vegetation water use and river stage variations
Authors: Sun HongGuang , Gu Xiufen , Zhu Jianting , Yu Zhongbo , Zhang Yong
Published: October 2019

Groundwater systems affected by various factors can exhibit complex fractal behaviors, whose reliable characterization however is not straightforward. This study explores the fractal scaling behavior of the groundwater systems affected by plant water use and river stage fluctuations in the riparian zone, using multifractal detrended fluctuation analysis (MFDFA). The multifractal spectrum based on the local Hurst exponent is used to quantify the complexity of fractal nature. Results show that the water level variations at the riparian zone of the Colorado River, USA, exhibit multifractal characteristics mainly caused by the memory of time series of the water level fluctuations. The groundwater level at the monitoring well close to the river characterizes the season-dependent scaling behavior, including persistence from December to February and anti-persistence from March to November. For the site with high-density plants (Tamarisk ramosissima, which requires direct access to groundwater as its source of water), the groundwater level fluctuation becomes persistent in spring and summer, since the plants have the most significant and sustained influence on the groundwater in these seasons, which can result in stronger memory of the water level fluctuation. Results also show that the high-density plants weaken the complexity of the multifractal property of the groundwater system. In addition, the groundwater level variations at the site close to the river exhibit the most complex multifractality due to the influence of the river stage fluctuation.
Interacting effects of vessel noise and shallow river depth elevate metabolic stress in Ganges river dolphins
Authors: Dey Mayukh , Krishnaswamy Jagdish , Morisaka Tadamichi , Kelkar Nachiket
Published: October 2019

In riverine ‘soundscapes’, complex interactions between sound, substrate type, and depth create difficulties in assessing impacts of anthropogenic noise pollution on freshwater fauna. Underwater noise from vessels can negatively affect endangered Ganges river dolphins (Platanista gangetica), which are ‘almost blind’ and rely entirely on high-frequency echolocation clicks to sense their environment. We conducted field-based acoustic recordings and modelling to assess acoustic responses ofPlatanistato underwater noise exposure from vessels in the Ganga River (India), which is now being transformed into a major waterway. Dolphins showed enhanced activity during acute noise exposure and suppressed activity during chronic exposure. Increase in ambient noise levels altered dolphin acoustic responses, strongly masked echolocation clicks, and more than doubled metabolic stress. Noise impacts were further aggravated during dry-season river depth reduction. Maintaining ecological flows, downscaling of vessel traffic, and propeller modifications to reduce cavitation noise, could help mitigate noise impacts on Ganges river dolphins.
Grandmothers’ smoking in pregnancy is associated with a reduced prevalence of early-onset myopia
Authors: Williams Cathy , Suderman Matthew , Guggenheim Jeremy A. , Ellis Genette , Gregory Steve , Iles-Caven Yasmin , Northstone Kate , Golding Jean , Pembrey Marcus
Published: October 2019

Myopia (near sightedness) is the most common vision disorder resulting in visual impairment worldwide. We tested the hypothesis that intergenerational, non-genetic heritable effects influence refractive development, using grandparental prenatal smoking as a candidate exposure. Using data from the Avon Longitudinal Study of Parents and Children (ALSPAC), we found that the prevalence of myopia at age 7 was lower if the paternal grandmother had smoked in pregnancy, an association primarily found among grandsons compared to granddaughters. There was a weaker, non-sex-specific, reduction in the prevalence of myopia at age 7 if the maternal grandmother had smoked in pregnancy. For children who became myopic later (between 7 and 15 years of age) there were no associations with either grandmother smoking. Differences between early and late-onset myopia were confirmed with DNA methylation patterns: there were very distinct and strong associations with methylation for early-onset but not later-onset myopia.
Brain-derived neurotrophic factor is related with adverse cardiac remodeling and high NTproBNP
Authors: Bahls Martin , Könemann Stephanie , Markus Marcello R. P. , Wenzel Kristin , Friedrich Nele , Nauck Matthias , Völzke Henry , Steveling Antje , Janowitz Deborah , Grabe Hans-Jörgen , Felix Stephan B. , Dörr Marcus
Published: October 2019

The brain-derived neurotrophic factor (BDNF) is a neuronal growth factor essential for normal cardiac contraction and relaxation. Alterations in BDNF signaling are related to the development of cardiovascular disease. Whether BDNF is related to subclinical cardiac remodeling is unclear. We related BDNF with echocardiographic parameters and NTproBNP in a large population-based cohort (n = 2,976, median age 48 years; 45% male). Transthoracic echocardiography was performed on all subjects and BDNF was measured by ELISA. Study participants with severe kidney dysfunction, previous myocardial infarction, and LV ejection fraction <40% were excluded. Linear regression models were adjusted for age, sex, lean mass, fat mass, current smoking, systolic blood pressure and depression. Low BDNF was associated with high NTproBNP. A 10,000 pg/ml lower BDNF was related with a 2.5 g higher (95%-confidence interval [CI]: 0.2 to 4.9; p = 0.036) LV mass, 0.01 cm posterior wall thickness (0.003 to 0.022; p = 0.007) and 0.02 E/A ratio (0.003 to 0.042, p = 0.026). Here we show that low BDNF levels are related with adverse cardiac remodeling and higher levels of NTproBNP. Further research is warranted to assess if BDNF may be used to monitor neuronal-cardiac damage during CVD progression.
Rare variants in non-coding regulatory regions of the genome that affect gene expression in systemic lupus erythematosus
Authors: Jones Sarah A. , Cantsilieris Stuart , Fan Huapeng , Cheng Qiang , Russ Brendan E. , Tucker Elena J. , Harris James , Rudloff Ina , Nold Marcel , Northcott Melissa , Dankers Wendy , Toh Andrew E. J. , White Stefan J. , Morand Eric F.
Published: October 2019

Personalized medicine approaches are increasingly sought for diseases with a heritable component. Systemic lupus erythematosus (SLE) is the prototypic autoimmune disease resulting from loss of immunologic tolerance, but the genetic basis of SLE remains incompletely understood. Genome wide association studies (GWAS) identify regions associated with disease, based on common single nucleotide polymorphisms (SNPs) within them, but these SNPs may simply be markers in linkage disequilibrium with other, causative mutations. Here we use an hierarchical screening approach for prediction and testing of true functional variants within regions identified in GWAS; this involved bioinformatic identification of putative regulatory elements within close proximity to SLE SNPs, screening those regions for potentially causative mutations by high resolution melt analysis, and functional validation using reporter assays. Using this approach, we screened 15 SLE associated loci in 143 SLE patients, identifying 7 new variants including 5 SNPs and 2 insertions. Reporter assays revealed that the 5 SNPs were functional, altering enhancer activity. One novel variant was linked to the relatively well characterized rs9888739 SNP at the ITGAM locus, and may explain some of the SLE heritability at this site. Our study demonstrates that non-coding regulatory elements can contain private sequence variants affecting gene expression, which may explain part of the heritability of SLE.
The utility of micro-computed tomography for the non-destructive study of eye microstructure in snails
Authors: Sumner-Rooney Lauren , Kenny Nathan J. , Ahmed Farah , Williams Suzanne T.
Published: October 2019

Molluscan eyes exhibit an enormous range of morphological variation, ranging from tiny pigment-cup eyes in limpets, compound eyes in ark clams and pinhole eyes inNautilus, through to concave mirror eyes in scallops and the large camera-type eyes of the more derived cephalopods. Here we assess the potential of non-destructive micro-computed tomography (µ-CT) for investigating the anatomy of molluscan eyes in three species of the family Solariellidae, a group of small, deep-sea gastropods. We compare our results directly with those from traditional histological methods applied to the same specimens, and show not only that eye microstructure can be visualised in sufficient detail for meaningful comparison even in very small animals, but also that μ-CT can provide additional insight into gross neuroanatomy without damaging rare and precious specimens. Data from μ-CT scans also show that neurological innervation of eyes is reduced in dark-adapted snails when compared with the innervation of cephalic tentacles, which are involved in mechanoreception and possibly chemoreception. Molecular tests also show that the use of µ-CT and phosphotungstic acid stain do not prevent successful downstream DNA extraction, PCR amplification or sequencing. The use of µ-CT methods is therefore highly recommended for the investigation of difficult-to-collect or unique specimens.
Effects of an imposed axial flow on a Ferrofluidic Taylor-Couette flow
Authors: Altmeyer Sebastian , Do Younghae
Published: October 2019

In this paper we investigate the effects of an externally imposed axial mass flux (axial pressure gradient, axial through flow) on ferrofluidic Taylor-Couette flow under the influence of either an axial or a transverse magnetic field. Without an imposed axial through flow, due to the symmetry-conserving axial field and the symmetry-breaking transverse field, it gives rise to various vortex flows in ferrofluidic Taylor-Couette flow such as wavy Taylor vortex flow (wTVF), wavy spiral vortex flow (wSPI) and wavy vortex flows ($${\boldsymbol{wTV}}{{\boldsymbol{F}}}_{{{\boldsymbol{H}}}_{{\boldsymbol{x}}}}$$
wTV

F

H

x

and $${\boldsymbol{wSP}}{{\boldsymbol{I}}}_{{{\boldsymbol{H}}}_{{\boldsymbol{x}}}}$$
wSP

I

H

x

), which are typically produced by a nonlinear interaction of rotational, shear and magnetic instabilities. In addition, when an axial through flow is imposed to a ferrofluidic Taylor-Couette flow in the presence of either an axial or a transverse magnetic field, previously unknown new helical vortex structures are observed. In particular, we uncover ‘modulated Mixed-Cross-Spirals’ with a combination of at least three different dominant azimuthal wavenumbers. Emergence of such new flow states indicates richer but potentially more controllable dynamics in ferrofluidic flows, i.e., an imposed axial through flow will be a new controllable factor/parameter in applications of a ferrofluidic and magnetic flows flow.
The earliest cut marks of Europe: a discussion on hominin subsistence patterns in the Orce sites (Baza basin, SE Spain)
Authors: Espigares M. Patrocinio , Palmqvist Paul , Guerra-Merchán Antonio , Ros-Montoya Sergio , García-Aguilar José Manuel , Rodríguez-Gómez Guillermo , Serrano Francisco J. , Martínez-Navarro Bienvenido
Published: October 2019

Ancient evidence of human presence in Europe is recorded in several Early Pleistocene archaeopalaeontological sites from Spain, France and Italy. This is the case of Barranco León (BL) and Fuente Nueva-3 (FN-3), two localities placed near the town of Orce (depression of Baza and Guadix, SE Spain) and dated to ~1.4 Ma. At these sites, huge assemblages of Oldowan tools and evidence of defleshing, butchering and marrow processing of large mammal bones have been recovered together with a deciduous tooth ofHomosp. in the case of level BL-D. In this study, we: (i) describe in detail the anthropic marks found in the bone assemblages from these sites; (ii) analyse patterns of defleshment, butchery and marrow processing, based on the modifications identified in the cortical surface of the fossils; and (iii) discuss on the subsistence strategies of the first hominins that inhabited the European subcontinent during Early Pleistocene times.
Broad and Efficient Control of Klebsiella Pathogens by Peptidoglycan-Degrading and Pore-Forming Bacteriocins Klebicins
Authors: Denkovskienė Erna , Paškevičius Šarūnas , Misiūnas Audrius , Stočkūnaitė Benita , Starkevič Urtė , Vitkauskienė Astra , Hahn-Löbmann Simone , Schulz Steve , Giritch Anatoli , Gleba Yuri , Ražanskienė Aušra
Published: October 2019

Gram-negative bacteria belonging to the genus Klebsiella are important nosocomial pathogens, readily acquiring resistance to all known antibiotics. Bacteriocins, non-antibiotic antibacterial proteins, have been earlier proposed as potential therapeutic agents for control of other Gram-negative species such as Escherichia, Pseudomonas and Salmonella. This study is the first report describing pore-forming and peptidoglycan-degrading bacteriocins klebicins from Klebsiella. We have identified, cloned, expressed in plants and characterized nine pore-forming and peptidoglycan-degrading bacteriocins from different Klebsiella species. We demonstrate that klebicins can be used for broad and efficient control of 101 of the 107 clinical isolates representing five Klebsiella species, including multi-drug resistant pathovars and pathovars resistant to carbapenem antibiotics.
Direct droplet digital PCR (dddPCR) for species specific, accurate and precise quantification of bacteria in mixed samples
Authors: Pacocha Natalia , Scheler Ott , Nowak Mikolaj Marcin , Derzsi Ladislav , Cichy Joanna , Garstecki Piotr
Published: October 2019

Here we demonstrate a direct droplet digital PCR assay (dddPCR) for simultaneous identification and quantification of bacteria in a bacterial mixture.
Metal–support interactions on Ru/CaAlOx catalysts derived from structural reconstruction of Ca–Al layered double hydroxides for ammonia decomposition
Authors: Zhao Jiawen , Xu Shuang , Wu Hongjie , You Zhixiong , Deng Lidan , Qiu Xinhong
Published: October 2019

Strong metal–support interaction (SMSI) over Ru/CaAlOx was constructed by utilizing the surface structural reconstruction of Ca–Al layered double hydroxides (LDHs) in aqueous solution and their subsequent hydroxide-to-oxide transformations.
A polyprodrug-based nanoplatform for cisplatin prodrug delivery and combination cancer therapy
Authors: Lin Chunhao , Tao Yiran , Saw Phei Er , Cao Minghui , Huang Hai , Xu Xiaoding
Published: October 2019

A robust mitoxantrone (MTO)-based polyprodrug nanoplatform was herein developed for systemic cisplatin prodrug delivery. This nanoplatform can concurrently deliver MTO and cisplatin to tumor cells and shows combinational inhibition of tumor growth.
Chirality control for predominant metallic or semiconducting single-walled carbon nanotubes prepared using a mild etchant
Authors: Moon Sook Young , Kim Woo Sik
Published: October 2019

Highly oriented metallic and semiconducting SWCNTs were synthesized with different carrier gas compositions and etchant amounts by the floating catalyst chemical vapor deposition method.
Magnetism in Ln molecular systems with 4f/valence-shell interplay (FV-magnetism)
Authors: Dubrovin Vasilii , Popov Alexey A. , Avdoshenko Stanislav
Published: October 2019

The hunt for high-performance single-molecule magnets (SMM) revealed that lanthanide systems combining 4f- and valence-shells show magnetic bistability up to very high temperatures. We rationalize magnetism in such systems from first principles.
Cu(i)–SNS complexes for outer-sphere hydroboration and hydrosilylation of carbonyls
Authors: Elsby Matthew R. , Baker R. Tom
Published: October 2019

Two new NHC–Cu(i)-[κ2-SNS] complexes were synthesized to directly compare the bifunctional catalytic activity of a hard amido vs. a soft thiolate donor.
A lysosome-specific near-infrared fluorescent probe for in vitro cancer cell detection and non-invasive in vivo imaging
Authors: Mengji Rakesh , Acharya Chiranjit , Vangala Venugopal , Jana Avijit
Published: October 2019

Near-infrared (NIR) fluorescent probes have been developed as potential bio-materials having profound applications in diagnosis and clinical practice.
Condensates of short peptides and ATP for the temporal regulation of cytochrome c activity
Authors: Saha Baishakhi , Chatterjee Ayan , Reja Antara , Das Dibyendu
Published: October 2019

We report the generation of simple condensates of short peptides with ATP, which are spatiotemporally formed under dissipative conditions and temporally modulate a secondary redox reaction catalyzed by the entrapped protein.
Bridging selenocarbonyl ligands: an open and shut case
Authors: Frogley Benjamin J. , Hill Anthony F. , Watson Lachlan J.
Published: October 2019

The novel platinum bis(isoselenocarbonyl) complex [Pt{SeCW(CO)2(Tp*)}2] is capable of opening both μ:σ–μ-CSe bridges to allow addition of nucleophilic (CNR: R = tBu, C6H2Me3) reagents to platinum by varying the selenocarbonyl bridging mode.
Retraction: Molybdenum-silver co-catalyzed cycloaddition of alkynes with N-isocyanoiminotriphenylphosphorane (NIITP): an efficient strategy for the synthesis of monosubstituted pyrazoles
Authors: Mi Pengbing , Lang Jiajia , Lin Shaojian
Published: October 2019

Retraction of ‘Molybdenum-silver co-catalyzed cycloaddition of alkynes with N-isocyanoiminotriphenylphosphorane (NIITP): an efficient strategy for the synthesis of monosubstituted pyrazoles’ by Pengbing Mi et al., Chem. Commun., 2019, 55, 7986–7989.
Molecular dynamics simulation of homogeneous nucleation of supersaturated potassium chloride (KCl) in aqueous solutions
Authors: Ahmadi Soroush , Wu Yuanyi , Rohani Sohrab
Published: October 2019

Molecular dynamics (MD) simulation is used to investigate the mechanism of crystal nucleation of potassium chloride (KCl) in a supersaturated aqueous solution at 293 K and 1 atm.
Controllable fabrication of LiMnPO4 microspheres assembled by radially arranged nanoplates with highly exposed (010) facets for an enhanced electrochemical performance
Authors: Pan Xiaoliang , Gao Zhi , Liu Lijun , Xie Shikun , Yuan Huiling , Xiao Fen
Published: October 2019

LiMnPO4 hollow microspheres assembled by radially aligned nanoplates with a high percentage of exposed (010) facets are prepared to improve the rate capability.
Photoinduced electron transfer and unusual environmental effects in fullerene–Zn-porphyrin–BODIPY triads
Authors: Stasyuk A. J. , Stasyuk O. A. , Solà M. , Voityuk A. A.
Published: October 2019

Molecular arrays containing donor–acceptor sites and antenna molecules are promising candidates for organic photovoltaic devices.
Spin-dependent charge transfer at chiral electrodes probed by magnetic resonance
Authors: Blumenschein Felix , Tamski Mika , Roussel Christophe , Smolinsky Eilam Z. B. , Tassinari Francesco , Naaman Ron , Ansermet Jean-Philippe
Published: October 2019

Chirality-induced spin polarization at chiral electrodes probed by magnetic resonance.
Local dielectric response in 1-propanol: α-relaxation versus relaxation of mesoscale structures
Authors: Weigl Peter , Koestel Daniel , Pabst Florian , Gabriel Jan Philipp , Walther Thomas , Blochowicz Thomas
Published: October 2019

Understanding how the local dielectric response is affected by the supramolecular Debye process in 1-propanol.
Understanding the molecular properties of the E1 subunit (SucA) of α-ketoglutarate dehydrogenase complex from Vibrio vulnificus for the enantioselective ligation of acetaldehydes into (R)-acetoin
Authors: Seo Pil-Won , Jo Hye-Jin , Hwang In Yeub , Jeong Ha-Yeon , Kim Jun-Hong , Kim Ji-Won , Lee Eun Yeol , Park Jin-Byung , Kim Jeong-Sun
Published: October 2019

Enantioselective ligation of acetaldehydes into (R)-acetoin by SucA from Vibrio vulnificus.
Hollow structural metal–organic frameworks exhibit high drug loading capacity, targeted delivery and magnetic resonance/optical multimodal imaging
Authors: Gao Xuechuan , Cui Ruixue , Song Lijun , Liu Zhiliang
Published: October 2019

The obtained Fe-MOF-5-NH2-FA-5-FAM/5-FU in this work shows high drug loading ability and excellent fluorescence and magnetic resonance imaging capability.
Energy recovery in capacitive deionization systems with inverted operation characteristics
Authors: Omosebi Ayokunle , Li Zhiao , Holubowitch Nicolas , Gao Xin , Landon James , Cramer Aaron , Liu Kunlei
Published: October 2019

Capacitive deionization (CDI) operated under inverted mode involves electronic charging and discharge steps with corresponding ion concentration and desalting coupled with simultaneous energy storage.
Catalyst design criteria and fundamental limitations in the electrochemical synthesis of dimethyl carbonate
Authors: Šarić Manuel , Davies Bethan Jane Venceslau , Schjødt Niels Christian , Dahl Søren , Moses Poul Georg , Escudero-Escribano María , Arenz Matthias , Rossmeisl Jan
Published: October 2019

Electrocatalytic formation of DMC and DMO via different surface bound intermediates.
Hydrazo coupling: the efficient transition-metal-free C–H functionalization of 8-hydroxyquinoline and phenol through base catalysis
Authors: Solyev Pavel N. , Sherman Daria K. , Novikov Roman A. , Levina Eugenia A. , Kochetkov Sergey N.
Published: October 2019

A new reaction involving the quantitative coupling of phenolic substrates to azodicarboxylate esters under mild conditions is a facile route for obtaining hydrazine derivatives. A plausible mechanism, catalysts, scope and application are discussed.
Piezoelectric nanofiber/polymer composite membrane for noise harvesting and active acoustic wave detection
Authors: Cui Nuanyang , Jia Xiaofeng , Lin Anan , Liu Jinmei , Bai Suo , Zhang Lu , Qin Yong , Yang Rusen , Zhou Feng , Li Yongqing
Published: October 2019

The PENG exhibited a good performance for harvesting and detecting low-frequency acoustic energy with a minimum sound pressure of 0.18 Pa.
HER2 inhibition efficiency of 6-amino-2-methyl-2-phenethyl-2H-benzopyran and feasibility of the 64Cu-labeled benzopyran derivative in cancer diagnosis
Authors: Jung Soonjae , Anusha J. R. , Park Seungil , Yu Kook Hyun , Raj C. Justin , Kim Byung Chul
Published: October 2019

The benzopyran derivative 6-amino-2-methyl-2-phenethyl-2H-benzopyran inhibits the overexpression of the protein HER2, and the 64Cu-labeled compound is promising for cancer diagnosis and treatment.
Functionalization of protein hexahistidine tags by functional nanoreactors
Authors: Paolino Marco , Visintin Michela , Margotti Elisa , Visentini Marco , Salvini Laura , Reale Annalisa , Razzano Vincenzo , Giuliani Germano , Caselli Gianfranco , Tavanti Francesco , Menziani Maria Cristina , Cappelli Andrea
Published: October 2019

The reactivity of functional nanoreactors was evaluated in CRB0137 as a model protein to develop a new methodology for the site-specific PEGylation of proteins bearing poly-histidine tags.
The necessity of free and uncrowded coordination environments in biomimetic complex models: oxidative coupling by mixed-ligand cobalt(ii) complexes of diazene–disulfonamide
Authors: Oloyede Hammed Olawale , Woods Joseph Anthony Orighomisan , Görls Helmar , Plass Winfried , Eseola Abiodun Omokehinde
Published: October 2019

Importance of molecular access to Co(ii) site is shown by new tridentate disulfonamides, which stabilize uncommon 5-coordinate mixed-ligand vacant-octahedral geometries.
A regio- and stereocontrolled approach to the synthesis of 4-CF3-substituted spiro[chromeno[3,4-c]pyrrolidine-oxindoles]viareversible [3+2] cycloaddition of azomethine ylides generated from isatins and sarcosine to 3-nitro-2-(trifluoromethyl)-2H-chromenes
Authors: Kutyashev Igor B. , Ulitko Maria V. , Barkov Alexey Yu. , Zimnitskiy Nikolay S. , Korotaev Vladislav Yu. , Sosnovskikh Vyacheslav Ya.
Published: October 2019

The first example of regio- and stereocontrolled synthesis of 4-CF3-spiro[chromeno[3,4-c]pyrrolidine-oxindoles] with anticancer activity.
Investigating the isolation and interconversion of two diastereoisomers in an octahedral system
Authors: Danelli Panagiota , Tsantis Sokratis T. , Kitos Alexandros , Psycharis Vassilis , Raptopoulou Catherine P. , Tsipis Athanassios , Perlepes Spyros P.
Published: October 2019

Two diastereoisomers of bis(2-benozylpyridine-O,N)dichloridonickel(ii) have been prepared, and experimentally and theoretically studied.
Constructing interconnected spherical hollow conductive networks in silver platelets/reduced graphene oxide foam/epoxy nanocomposites for superior electromagnetic interference shielding effectiveness
Authors: Liang Chaobo , Song Ping , Qiu Hua , Zhang Yali , Ma Xiangteng , Qi Fengqi , Gu Hongbo , Kong Jie , Cao Dapeng , Gu Junwei
Published: October 2019

How to significantly increase electromagnetic interference (EMI) shielding performances by improving electrical conductivities is still a serious challenge.
Thermal conductivity suppression in GaAs–AlAs core–shell nanowire arrays
Authors: Juntunen Taneli , Koskinen Tomi , Khayrudinov Vladislav , Haggren Tuomas , Jiang Hua , Lipsanen Harri , Tittonen Ilkka
Published: October 2019

Semiconductor nanowire heterostructures have been shown to provide appealing properties for optoelectronics and solid-state energy harvesting by thermoelectrics.
Co/Pd-Based synthetic antiferromagnetic thin films on Au/resist underlayers: towards biomedical applications
Authors: Varvaro G. , Laureti S. , Peddis D. , Hassan M. , Barucca G. , Mengucci P. , Gerardino A. , Giovine E. , Lik O. , Nissen D. , Albrecht M.
Published: October 2019

Thin film stacks made of multiple repeats of Co/Pd-based SAF units with perpendicular magnetic anisotropy and tunable magnetic moment were explored as starting material to fabricate free-standing micro/nanodisks for theranostic applications.
Homogeneous platinum diselenide metal/semiconductor coplanar structure fabricated by selective thickness control
Authors: Yang Yajie , Jang Sung Kyu , Choi Haeju , Xu Jiao , Lee Sungjoo
Published: October 2019

Exploiting the layer-dependent semiconductor-to-semimetal transition property, a PtSe2device with homogeneous coplanar structure demonstrate high mobility and extremely low contact resistance.
Alterations to secondary building units of metal–organic frameworks for the development of new functions
Authors: Ha Junsu , Lee Jae Hwa , Moon Hoi Ri
Published: October 2019

Post-synthetic modification methods for the secondary building units in MOFs facilitate unique structures and properties that are impossible to accessviadirect syntheses, which can be classified as four categories.
Joining the journey to near infrared (NIR) imaging: the emerging role of lanthanides in the designing of molecular probes
Authors: Jin Guo-Qing , Ning Yingying , Geng Jing-Xing , Jiang Zhi-Fan , Wang Yan , Zhang Jun-Long
Published: October 2019

The recent developments and prospects of near-infrared molecular probes based on luminescent lanthanide coordination complexes in bioimaging are described, which is important to emphasise the importance of lanthanide chemical biology.
Synthesis of paracyclophanes with planar and central chirality: kinetic resolution of [2.2]paracyclophane aldimines via palladium-catalyzed addition of arylboronic acids
Authors: Zhao Yang , Wang Han , Wu Bo , Zhou Yong-Gui
Published: October 2019

Kinetic resolution of [2.2]paracyclophane aldimines was achieved through a palladium-catalyzed enantioselective arylation, providing access to chiral paracyclophanes with planar and central chirality as well as the recovered chiral aldimines.
Visible-light-promoted direct C–H/S–H cross-coupling of quinoxalin-2(1H)-ones with thiols leading to 3-sulfenylated quinoxalin-2(1H)-ones in air
Authors: Xie Long-Yong , Chen Yan-Ling , Qin Li , Wen Yuan , Xie Jian-Wei , Tan Jia-Xi , Huang Ying , Cao Zhong , He Wei-Min
Published: October 2019

A new and efficient visible-light-mediated strategy has been developed for the synthesis of 3-sulfenylated quinoxalin-2(1H)-ones via rhodamine B catalyzed C–H/S–H cross-coupling of quinoxalin-2(1H)-ones with thiols in air at room temperature.
Influence of water evaporation/absorption on the stability of glycerol–water marbles
Authors: Lin Xinxing , Ma Wei , Chen Lihui , Huang Liulian , Wu Hui , Takahara Atsushi
Published: October 2019

The influence of water evaporation and absorption on the stability of aqueous glycerol marbles was investigated.
Effect of the inserted active-site-covering lid loop on the catalytic activity of a mutant B. subtilis γ-glutamyltransferase (GGT)
Authors: Massone Michela , Calvio Cinzia , Rabuffetti Marco , Speranza Giovanna , Morelli Carlo F.
Published: October 2019

A mutant γ-glutamyltransferase with improve transpeptidase activity was obtained by inserting the active site-covering lid loop on an enzyme naturally lacking it.
Development of a radiopaque, long-term drug eluting bioresorbable stent for the femoral-iliac artery
Authors: Ha Dong-Heon , Kim Jae Yun , Park Tae Sik , Park Jong Ha , Chae Suhun , Kim Byoung Soo , Lee Han Cheol , Cho Dong-Woo
Published: October 2019

A radiopaque, long-term drug eluting bioresorbable stent is developed for the treatment of femoral-iliac artery. The prepared materials are printed on a pre-designed rotating rod. The fabricated stent can be adapted for various clinical cases.
Facile assembly of novel g-C3N4@expanded graphite and surface loading of nano zero-valent iron for enhanced synergistic degradation of tetracycline
Authors: Wang Xiangyu , Xie Yu , Ma Jun , Ning Ping
Published: October 2019

The two-stage removal process of tetracycline (TC) in aqueous solutions using a novel photocatalyst based on nano-zero-valent iron (NZVI), g-C3N4 and expanded graphite by carbon layer (EGC) is reported for the first time.
Palladium catalyst immobilized on functionalized microporous organic polymers for C–C coupling reactions
Authors: Xu Wei , Liu Cijie , Xiang Dexuan , Luo Qionglin , Shu You , Lin Hongwei , Hu Yangjian , Zhang Zaixing , Ouyang Yuejun
Published: October 2019

Two microporous organic polymers were prepared from 1,10-phenanthroline by Scholl coupling reaction and Friedel–Crafts reaction, and applied to Heck reaction and Suzuki–Miyaura reaction as heterogeneous catalysts.
Near infrared-light responsive WS2microengines with high-performance electro- and photo-catalytic activities
Authors: Asunción-Nadal Víctor de la , Jurado-Sánchez Beatriz , Vázquez Luis , Escarpa Alberto
Published: October 2019

Tungsten disulfide based micromotors with enhanced electrochemical and photo-catalytic activities are synthesized using a simple electrochemical approach at room temperature without further building chemistry.
Hydrogen bond guided synthesis of close-packed one-dimensional graphdiyne on the Ag(111) surface
Authors: Chen Zhi , Lin Tao , Li Haohan , Cheng Fang , Su Chenliang , Loh Kian Ping
Published: October 2019

Aided by hydrogen bonding, alkyne and oxazole functionalized precursors undergo uniform self-assembly, which serves as a template for the fabrication of one-dimensional graphdiyne-like wires on the Ag(111) surface.
Hydrogen peroxide synthesis on porous graphitic carbon nitride using water as a hydrogen source
Authors: Cao Yongyong , Zhou Guobing , Chen Xianlang , Qiao Qi , Zhao Chenxia , Sun Xiang , Zhong Xing , Zhuang Guilin , Deng Shengwei , Wei Zhongzhe , Yao Zihao , Huang Liangliang , Wang Jianguo
Published: October 2019

Using water as a hydrogen source is a promising strategy for alternative hydrogen peroxide (H2O2) synthesis.
Defect passivation using ultrathin PTAA layers for efficient and stable perovskite solar cells with a high fill factor and eliminated hysteresis
Authors: Wang Ming , Wang Huaxin , Li Wei , Hu Xiaofei , Sun Kuan , Zang Zhigang
Published: October 2019

Ultra-thin PTAA layers contribute to interface defect passivation and interface recombination reduction to improve the efficiency of perovskite solar cells.
Cr-doped lithium titanate nanocrystals as Mg ion insertion materials for Mg batteries
Authors: Lee Boeun , Jo Eunmi , Choi Jihwan , Kim Jong Hak , Chang Wonyoung , Yu Seungho , Kim Hyung-Seok , Oh Si Hyoung
Published: October 2019

Integrated material design for insertion materials for Mg batteries is realized utilizing lithium titanate through Cr-doping and particle size reduction.
Ambient fast, large-scale synthesis of entropy-stabilized metal–organic framework nanosheets for electrocatalytic oxygen evolution
Authors: Zhao Xinhui , Xue Zhimin , Chen Wenjun , Bai Xiyue , Shi Ruifen , Mu Tiancheng
Published: October 2019

A high entropy metal–organic framework (HE-MOF) with five near-equimolar components was synthesized by a solution phase method and served as an electrochemical oxygen evolution catalyst.
A highly stretchable, ultra-tough, remarkably tolerant, and robust self-healing glycerol-hydrogel for a dual-responsive soft actuator
Authors: Guo Meiling , Wu Yuanpeng , Xue Shishan , Xia Yuanmeng , Yang Xi , Dzenis Yuris , Li Zhenyu , Lei Weiwei , Smith Andrew T. , Sun Luyi
Published: October 2019

A novel strategy to synthesize a glycerol-hydrogel with high stretchability, ultra-toughness, remarkable tolerance, and outstanding self-healing capability has been developed. A soft actuator has been fabricated based on the glycerol-hydrogel.
A new approach to very high lithium salt content quasi-solid state electrolytes for lithium metal batteries using plastic crystals
Authors: Al-Masri Danah , Yunis Ruhamah , Zhu Haijin , Jin Liyu , Bruce Peter , Hollenkamp Anthony F. , Pringle Jennifer M.
Published: October 2019

The combination of a highly conductivity plastic crystal with a very high concentration of lithium salt results in a promising new “plastic crystal in salt” electrolyte for lithium metal batteries.
Synthesis of highly selective lysosomal markers by coupling 2-(2′-hydroxyphenyl)benzothiazole (HBT) with benzothiazolium cyanine (Cy): the impact of substituents on selectivity and optical properties
Authors: Abeywickrama Chathura S. , Bertman Keti A. , Mcdonald Lucas J. , Alexander Nicolas , Dahal Dipendra , Baumann Hannah J. , Salmon Carrie R. , Wesdemiotis Chrys , Konopka Michael , Tessier Claire A. , Pang Yi
Published: October 2019

A few HBT-Cy-containing fluorescent probes have been synthesized for lysosome visualization in live cells.
Macroorganisation and flexibility of thylakoid membranes
Authors: Lambrev Petar H. , Akhtar Parveen
Published: October 2019

The light reactions of photosynthesis are hosted and regulated by the chloroplast thylakoid membrane (TM) — the central structural component of the photosynthetic apparatus of plants and algae. The two-dimensional and three-dimensional arrangement of the lipid–protein assemblies, aka macroorganisation, and its dynamic responses to the fluctuating physiological environment, aka flexibility, are the subject of this review. An emphasis is given on the information obtainable by spectroscopic approaches, especially circular dichroism (CD). We briefly summarise the current knowledge of the composition and three-dimensional architecture of the granal TMs in plants and the supramolecular organisation of Photosystem II and light-harvesting complex II therein. We next acquaint the non-specialist reader with the fundamentals of CD spectroscopy, recent advances such as anisotropic CD, and applications for studying the structure and macroorganisation of photosynthetic complexes and membranes. Special attention is given to the structural and functional flexibility of light-harvesting complex II in vitro as revealed by CD and fluorescence spectroscopy. We give an account of the dynamic changes in membrane macroorganisation associated with the light-adaptation of the photosynthetic apparatus and the regulation of the excitation energy flow by state transitions and non-photochemical quenching.
Direct-to-consumer genetic testing with third party interpretation: beware of spurious results
Authors: Horton Rachel , Crawford Gillian , Freeman Lindsey , Fenwick Angela , Lucassen Anneke
Published: October 2019

Direct-to-consumer (DTC) genetic tests aim to provide insights into issues as varied as ancestry, nutrition, athletic ability and child talent, and some also report on disease risks. DTC companies tend to present their tests as uniformly beneficial, but the quality of the information they provide can be doubtful. Tests often invite people to step between territories, from the consumer in search of ‘fun’ information to potential patient, and the boundaries between these roles become even murkier when individuals explore the raw data from their DTC tests using third-party interpretation websites. We discuss two composite cases from U.K. genetics centres where patients used third party interpretation services to analyse raw data from DTC genetic tests. They then presented to NHS clinical services requesting interventions based on the disease-associated variants found, only to find that these variants were not actually present: their ‘pathogenic results’ were spurious. We highlight the risk of false positives (as well as false negatives) from DTC genetic tests, and discuss whether these cases represent the start of a worrying trend, where publicly funded clinicians and clinical scientists increasingly need to spend time and money investigating genetic results of dubious validity.
Methods and Advances in the Forensic Analysis of Contaminated Rivers
Authors: Miller Jerry
Published: October 2019

Trace metals and metalloids are a common and persistent form of riverine (river) contamination and are derived from a wide variety of sources, including mining and milling operations, industrial activities, urban runoff, agricultural chemicals, and atmospheric pollution, among a host of others. Documentation of trace metal sources and dispersal pathways in riverine ecosystems is essential to mitigate their potentially harmful effects to human and ecosystem health and is often required from a legal (environmental forensic) perspective to assess liability for the costs of remediation. Unfortunately, documenting the sources and source contributions of trace metals in rivers has proven difficult, time-intensive, and costly. Herein, a four-component, interdisciplinary framework is proposed to efficiently identify the sources and source contributions of trace metals in alluvial sediments where multiple natural and/or anthropogenic sources exist. The components include (1) the analysis of the river’s alluvial stratigraphic architecture and geomorphic history, (2) the temporal correlation of geochemically characterized alluvial deposits to potential anthropogenic trace metal sources, (3) the analysis of the spatial variations in selected geochemical parameters, and (4) the use of geochemical and/or isotopic tracers to quantitatively estimate the contributions of trace metals from the defined natural and anthropogenic sources. The four components arenotintended to be exhaustive; the framework may require modification following multiple lines of evidence approach, in which additional methods and data are added to the investigation until there is confidence that all trace metal sources and their contributions have been effectively defined.
Soil Erosion Modelling at Watershed Level in Indonesia: a Review
Authors: Susanti Yuari , Syafrudin S , Helmi Muhammad
Published: October 2019

Soil erosion is one of the most serious degradation problems in the world, so in Indonesia. The average level of global soil erosion ranges from 12-15 Ton/ha/yr, or it can be said that there is a surface soil loss of 0.90-0.95 mm of land. While the watershed in Indonesia is 458 in which 60 are critically heavy, 222 critical and 176 potentially critical. An action is needed to reduce erosion rates which is one of the causes of damage to the watershed. Soil erosion modeling is a method used in estimating the amount of soil erosion that occurs in an area. Various models of soil erosion are developed with the aim of producing precise erosion estimates. This study will discuss soil erosion modeling (definition, classification of models and proceed) and a review of erosion assessment models that are widely used in Indonesia (USLE, MUSLE, RUSLE, and SWAT). By knowing each erosion estimation model, hope can be able to choose the right model according to the study to be conducted.
Mapping of Groundwater Vulnerability Index in the Alluvial Plain of Semarang City Using the Susceptibility Index Method
Authors: Marjuanto Adetya Arga , Putranto Thomas Triadi , Sugianto Denny Nugroho
Published: October 2019

One of the negative impacts of settlements and urbanization is the decline in groundwater quality. In maintaining the sustainability of groundwater for a long period of time, a special study is needed, which can be done by examining groundwater vulnerability. The alluvial plain of Semarang City currently faces environmental problems such as degradation of groundwater quality which is the negative impact of the settlement, The purpose of this study was to examine groundwater vulnerability in the alluvial plain area of Semarang City. The Susceptibility Index method is using a spatial analysis tool based on rating and weighting value of some parameters, i.e. Depth of groundwater, recharge, aquifer media, slope, and land use. The result of this research reveals that about 41.3% area is covered under the high vulnerable zone, 50.3% area under moderately vulnerable zone and 8.4% area under the low vulnerable zone. 7 sub districts namely Tugu, Semarang Barat, Semarang Utara, Semarang Timur, Gayamsari, Pedurungan and Genuk, most of which are in the high vulnerability zone. Whereas the Ngaliyan, Semarang Selatan, Semarang Tengah, Candisari, and Gajah Mungkur, which are mostly in the low to moderate vulnerability zones.
Assessment of Tourism Suitability in Natural Tourism Object of Lengkuas Island, Sijuk District, Belitung Regency, Bangka Belitung Province
Authors: Ariefianda Reszi , Hidayat Jafron Wasiq , Maryono Eng
Published: October 2019

The emergence of the tourism era 4.0 is the impact of the 4.0 industrial revolution in the tourism sector. This era was marked by the ease of access to information through digital media. Marine Ecotourism is a tourism activity that reflects cultural heritage, participation, and welfare of local residents also efforts to conserve natural and environmental resources, especially in coastal and island areas. This study aims to determine the suitability of the Lengkuas Island tourist area and the strategy of management and development of Lengkuas Island object. This research was conducted in February - April 2019 on Lengkuas Island, Sijuk District, Belitung Regency, Bangka Belitung Province. Travel suitability measurements based on parameters in the specified matrix will then be adjusted to the Tourism Suitability Index. Variables that will be used consist of, water depth, beach type, beach brightness, beach width, beach slope, current velocity, land cover, dangerous biota, water base material, clean water availability. The results show that Stations 1 (97.6%), II (94%), and III (94%) are very suitable for the category of recreation and swimming. Stations IV (19), V (19), And VI (19) are very suitable for tourist activities especially boating, banana boating, canoeing, and jet skiing.
Geotourism Potential as Information for Infrastructure Planning of the Karst Area, Kayen District, Pati Regency, Central Java
Authors: Winarno Tri , Marin Jenian , Ali Rinal Khaidar , Widianto Yudantoko Aditya
Published: October 2019

Kayen District, Pati Regency is a karst morphology area composed of karstified limestone with geotourism potential, established as Karst Landscape Area. As basis for infrastructure development in geotourism area, a database of geosites need to be built to make sure it is available for government and public. The method used is field observation, interviews and SWOT analysis. Morphology of this area is divided into conical karst hills and the karst alluvium plains. The lithology of the research area are reef limestone, clastic limestone, and alluvial deposit. Inventory managed to identify potential geosites such as hills, cliffs, caves, and springs; five existing geosites have been developed and six locations are new geosite recommendations. From the SWOT analysis, it is known that this location has the strength that is the uniqueness of morphology from karstification results, the weakness is geotourism concept is still not yet understood by local residents, the opportunity is the minister's decision regarding the Sukolilo Karst Landscape Area and the threat is lack of geological protection at the research site. The geotourism and geotrack map will serve as geospatial information and further recommendation for government to prioritize the infrastructure development in this area.
Temporal Variations of Baseflow Contribution to Epikarst spring Discharge in Gunungsewu Karst Area, Indonesia
Authors: Naufal Muhammad , Widyastuti Margaretha , Cahyadi Ahmad , Ramadhan Fajri , Riyanto Indra Agus , nisa Khansa Sitostratufana Arsy An , Adji Tjahyo Nugroho , Haryono Eko
Published: October 2019

Flow moving slowly (infiltration), and known as steady flow or baseflow is the only supplier of water in underground flows in the form of karst fields during the dry season. Certainly, the character contribution of this flow plays a major role in supporting the supplier of clean water. Understanding related to the character of baseflow in detail has a very high urgency to be studied. This Research aims to do a temporal analysis of baseflow contributions on epikarst water springs in Gunungsewu Karst Area, Indonesia. The research takes place in Guntur Springs that occupy the hydrogeological subsystem. Data used in this Research includes flow data from Guntur Springs for one year. The method used in this Research is automated base flow separation by digital filtering. Results of the analysis show that baseflow contribution in Guntur Springs are between 79.57% and 93.96%.