bluuebunny/crossref_metadata_2025_split huggingface dataset:
Carrefours: Migrants’ Support Volunteer Tourism in Lesvos
Authors: Di Matteo Giovanna 
Published: July 2021

Lesvos (Greece) has become over the last few years the emblem of human migration to Europe. As a consequence of the so-called “migration crisis” in 2015, people from all over the world who, first in a self-organized way and then structuring themselves into associations and organizations, wanted to bring support to migrants in transit or blocked on the island arrived developing what I define migrants’ support volunteer tourism. After defining the historical and contemporary context, I define the tourist framework and in particular this (relatively) new form of volunteer tourism. Keeping in mind that tourism – often described as a panacea for the Mediterranean islands – does not necessarily mean encounter with the other, I try to analyse voluntary tourism from the point of view of the possible relationships that are created thanks to the intersection of two forms of contemporary mobility: tourism and migration.
UM REGISTRO A/R/TOGRÁFICO AO OLHAR PARA OS PRÓPRIOS PROCESSOS DE SENSIBILIZAÇÃO NO ENSINO DA ARTE-DANÇA E SUAS TRANVERSALIDADES
Authors: Darolt Ana Paula , Da Cruz Souza Marco Aurélio 
Published: July 2021

Este artigo resulta do Trabalho de Conclusão de Curso intitulado “UM olhar a/r/togrÁFICO PARA OS PROCESSOS DE sensibilização No ENSINO DA ARTE/DANÇA E SUAS TRANVERSALIDADES”, sob orientação do Professor Dr. Marco Aurelio da Cruz Souza e co-orientação da Dra. Giovana Bianca Darolt Hillesheim, que utilizou-se da A/R/Tografia e da autoetnografia como processo metodológico. Nesse sentido, busca apresentar algumas reflexões acerca do sensível na experiência educacional de uma das autoras e em sua própria constituição enquanto professora, artista e pesquisadora. Palavras-chave: Arte; Dança; Educação; Sensível; A/R/tografia.
History of Plasma Display Reflected by Patents
Authors: Baltag Octavian 
Published: July 2021

The paper is a historical presentation of the development of television and presents chronologically the evolution of the use of plasma in television.
The first inventors who proposed the use of plasmas together with imagined solutions and patents related to plasma display panel - PDP are presented.
The first attempt to accomplish an extra flat display by using a modified cathode tube is also presented. Yet, the technological difficulties stopped its utilization at a large scale in television. The solutions that determined the realization of certain TV displays with applications in other fields of electronics are also introduced. A pioneer invention from the 1960’s, which set the bases of future TV displays, is also specified. The utilization in the 1970’s was the most adequate technological solution for the realization of the first thin displays, a solution which survived even after the appearance of the LCD and LED systems.
Atmospheric Benzene and Determination of Trans, Trans-Muconic Acid of Workers at Oil Sites in Pointe-Noire
Authors: Ataboho Ebenguela Ebatetou , Nsemi Josué Richard Ntsimba , Moukassa Donatien 
Published: July 2021

Trans, trans-muconic acid is generally considered a useful biomarker of exposure to benzene that occurs naturally in crude oil.
Objective: To estimate exposure of benzene to workers in an oil and gas production company.
Materials and Methods: Firstly, it was a descriptive, cross-sectional study which consisted of benzene atmospheric quantification in a sample individual measurements of a homogeneous exposure group of workers. Secondly, urinary assays of trans, trans-muconic acid have been performed at the end of the shift in the selected workers.
Results: A total of 79 (47.88%) workers agreed to participate in the study. Seventeen atmospheric samples were usable and 79 urinary assays at the end of the shift were carried out. The average benzene concentration for all sites was 10 times lower than the regulatory average exposure value (1 ppm=3.25 mg/m3):average: 0.122pp, median: 0.053ppm and range: 0.019-1.448 ppm. All 79 urinary assays of trans, trans-muconic acid were below the biological exposure index (<500 µg/g creatinine) with an average of 37.34 µg/g creatinine, a median of 30 µg/g creatinine, and an extent from 10 to 150 µg/g creatinine.
Conclusion: Airborne benzene concentrations were below company limits. The same was true for the urinary assays of trans, trans-muconic acid. Overall, therefore, exposure to benzene is low in this company. However, there is a need to maintain regular medical surveillance as the risk of exposure is ongoing.
Effects of Consuming Different Varieties of Bambara Nut (Vigna subterranea) Seeds on Liver and Kidney of Diabetic and Non-diabetic Subject
Authors: Mohammed Abdulrashid , Mhya Daniel Hassan 
Published: July 2021

Aims: Bambara nut seeds have been reported as a good source of food with high fiber and nutritional contents, and is consumed by persons with diabetes as one of the dietary therapy. However, the plant seeds are of different varieties and whether they might have vary biological effects on renal and liver functions is not fully known. This has prompted the study to evaluate effects of consuming different varieties of Bambara Nut seeds on liver and kidney of both diabetic and non-diabetic rats.
Methodology: Four Bambara nut seeds varieties were dehulled and each heated at 60oC, cooled then grounded into flour using a mechanical grinder. The flours were used to formulate feeds which were given to different diabetic and non-diabetic rats’ groups as follows; group A (ALK01 feed), group B (ALK02 feed), group C (ALK03 feed), group D (ALK04 feed), group E (Basal feed), and group F (Normal animal’s feed). The animals were fed for 28 days then sacrifice, blood collected and serum separated and used for hepatic and renal parameters analysis.
Results: The results of the study showed decrease levels of serum total protein and albumin, and elevation of AST and ALT activities as well as urea and creatinine concentrations in diabetic rats fed basal and normal diets, whereas, reverse in these parameters were recorded from diabetic rats fed varieties of Bambara nut seeds’ formulated feeds.
Conclusion: Findings from the study suggest consumption of Bambara nut seeds of different varieties is safe and has ability to ameliorate diabetic hepatic and renal failure in a variety dependent manner where; ALK 04 is more likely the most effective.
Methylovorus
Authors: Doronina Nina V. , Kaparullina Elena N. , Agafonova Nadezhda V. 
Published: July 2021

Abstract

Me.thy.lo.vo'rus. N.L. neut. n.
methylum
the methyl group; N.L. masc. adj.
vorus
consuming; N.L. masc.n.
Methylovorus
the methyl consumer.

Proteobacteria / Betaproteobacteria / Methylophilales / Methylophilaceae / Methylovorus

The genus
Methylovorus
accommodates obligate and restricted facultative methylotrophs. Cells of these methylotrophic bacteria are Gram‐stain negative, aerobic, and motile rods with single polar flagellum, which multiply by binary fission and occur singly without aggregation. Cells do not possess endospores, intracellular membranes, or poly‐β‐hydroxybutyrate granules and prosthecae. Cells of some strains produce slime. Members of this genus are able to utilize methanol via the ribulose monophosphate (RuMP) pathway of C
1
assimilation. These bacteria possess an incomplete tricarboxylic acid cycle because they lack α‐ketoglutarate dehydrogenase. Enzymes of the glyoxylate cycle (malate synthase and isocitrate lyase) are absent. Some strains can grow on methylamine and poorly on glucose or fructose. No growth occurs on rich media with peptone and under CH
4
+ O
2
or H
2
+ CO
2
+ O
2
in the gas phase. These methylotrophic bacteria are mesophilic, neutrophilic, and nonhalophilic. Vitamins or other growth factors are not required for growth. Nitrogen sources are ammonium salts, nitrates, and some amino acids. Indole is produced from
l
‐tryptophan on mineral medium with methanol and KNO
3
. The major fatty acids are C
16:0
and C
16:1
ω7
c
.

Known habitats are wastewater, soil, or phyllosphere and rhizosphere of various plants.

DNA G + C content (mol%)
: 54.0–55.4 (
T
m
and genome sequence).

Type species
:
Methylovorus glucosotrophus
Govorukhina and Trotsenko 1991
VP
.
Impact of Preoperative and Incident Musculoskeletal Problematic Areas on Postoperative Outcomes After Total Knee Replacement
Authors: Zhang MaryAnn , Selzer Faith , Losina Elena , Collins Jamie E. , Katz Jeffrey N. 
Published: July 2021

ObjectiveTo examine impact of pre‐existing and incident problematic musculoskeletal (MSK) areas after total knee replacement (TKR) on postoperative 60‐month Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain/function scores.MethodsUsing data from a randomized controlled trial of subjects undergoing TKR for osteoarthritis, we assessed problematic MSK areas in six body regions before TKR and 12, 24, 36, and 48 months after TKR. We defined the following two variables: 1) density count (number of problematic MSK areas occurring after TKR; range 0‐24) and 2) cumulative density count (problematic MSK areas both before and after TKR, categorized into four levels: no preoperative areas and density count of 0‐1 [reference group]; no preoperative areas and density count of 2 or more; one or more preoperative areas and density count of 0‐1; and one or more preoperative areas and density count of 2 or greater). We evaluated the associations between categorized 60‐month WOMAC and cumulative density count by ordinal logistic regression.ResultsAmong 230 subjects, 24% reported one or more preoperative problematic MSK area. After TKR, 75% reported a density count of 0 to 1; 25% reported a density count of 2 or more. Compared with the reference group, each cumulative density count category was associated with an increased odds of having a higher category of 60‐month WOMAC pain score, as follows: 2.97 (95% confidence interval [CI], 1.48‐5.98) for no preoperative problematic areas and density count of 2 or greater, 3.31 (95% CI, 1.64‐6.66) for one or more preoperative problematic areas and density count of 0 to 1, and 2.85 (95% CI, 0.97‐8.39) for one or more preoperative problematic areas and density count of 2 or greater. Similar associations were observed with 60‐month WOMAC function score.ConclusionIn TKR recipients, the presence of problematic musculoskeletal areas beyond the index knee—preoperatively and/or postoperatively—was associated with worse 60‐month WOMAC pain/function score.
Best of Both Worlds: Synergistically Derived Material Properties via Additive Manufacturing of Nanocomposites
Authors: Carrola Mia , Asadi Amir , Zhang Han , Papageorgiou Dimitrios G. , Bilotti Emiliano , Koerner Hilmar 
Published: July 2021

AbstractWith an exponential rise in the popularity and availability of additive manufacturing (AM), a large focus has been directed toward research in this topic's movement, while trying to distinguish themselves from similar works by simply adding nanomaterials to their process. Though nanomaterials can add impressive properties to nanocomposites (NCs), there are expansive amounts of opportunities that are left unexplored by simply combining AM with NCs without discovering synergistic effects and novel emerging material properties that are not possible by each of these alone. Cooperative, evolving properties of NCs in AM can be investigated at the processing, morphological, and architectural levels. Each of these categories are studied as a function of the amplifying relationship between nanomaterials and AM, with each showing the systematically selected material and method to advance the material performance, explore emergent properties, as well as improve the AM process itself. Innovative, advanced materials are key to faster development cycles in disruptive technologies for bioengineering, defense, and transportation sectors. This is only possible by focusing on synergism and amplification within additive manufacturing of nanocomposites.
Triple Enzyme‐Regulated Molecular Hydrogels for Carrier‐Free Delivery of Lonidamine
Authors: Wu Can , Wang Chunlu , Zheng Yaoyao , Zheng Yaxin , Liu Ziqi , Xu Keming , Zhong Wenying 
Published: July 2021

AbstractCancerous cells exhibit overexpression of multiple enzymes in various cellular compartments. These enzymes are often undruggable, yet display unique advantages in regulating intracellular self‐assembly and dis‐assembly of small molecules for cancer targeting. Herein, a self‐assembling molecule (LND‐1p‐ES) for carrier‐free delivery of lonidamine specifically to cancerous cells is designed, where LND‐1p‐ES executes as both a drug and a carrier with combined benefits thereof. Under the precise regulation of phosphatase (ALP) and esterase (CES), LND‐1p‐ES is capable of self‐assembling intracellularly in a spatiotemporal manner, to confer lonidamine‐borne nanofibers with enhanced cellular uptake. These nanofibers also facilitate controlled drug release with the aid of cellular proteases. Taking advantages of overexpressing ALP and CES as well as proteases in cancerous cells, the LND‐1p‐ES formulation demonstrates enhanced potency and selectivity against melanoma cells A375 in vitro and in vivo. In comparison, none/single enzyme responsive compounds fail to show a similar potency or selectivity, further confirming the indispensable roles of these enzymes in the delivery system. Collectively, the research provides a viable strategy to utilize multiple enzymes in cancerous cells for regulation of intracellular self‐assembly, which can be expanded to design smart soft materials responsive to multiple biologically relevant biomolecules for enhanced therapeutic efficacy.
Anticorrosive Copper Current Collector Passivated by Self‐Assembled Porous Membrane for Highly Stable Lithium Metal Batteries
Authors: Wen Zuxin , Fang Wenqiang , Chen Long , Guo Ziwei , Zhang Ning , Liu Xiaohe , Chen Gen 
Published: July 2021

AbstractThe regulation of lithium plating/stripping behavior is considered to be critical for next‐generation safe and high‐energy‐density lithium metal batteries. Lithium deposition with maximum granular size and minimum microstructural tortuosity can significantly improve the lithium plating/stripping efficiency. Here, a self‐assembled organosilane layer with nanopores is constructed on Cu current collector surface via a thiol‐Cu reaction. In contrast to typical stacked‐particle morphology with small grain size and high specific area in ether electrolyte, dough‐like and lateral‐growth lithium deposition can be plated on the modified Cu current collector due to the low surface energy of a lithiophilic SiOSi membrane. The planar and dense lithium deposition contributes to the stable implementation of up to near 500 cycles in full cells with high‐loading LiFePO4 cathode. Anticorrosion in rigorous Cl‐ion containing solution can even be achieved due to the corrosive repellency of hydrophobic organosilane. A high Coulombic efficiency (97.12%) is remained after corroding for 300 min. Moreover, the irreversible capacity loss caused by galvanic corrosion, an ignored but crucial aspect, has been significantly suppressed due to the passivation of high‐redox‐potential Cu by organosilane coating.
Long‐Range Forces in Rock‐Salt‐Type Tellurides and How they Mirror the Underlying Chemical Bonding
Authors: Hempelmann Jan , Müller Peter C. , Konze Philipp M. , Stoffel Ralf P. , Steinberg Simon , Dronskowski Richard 
Published: July 2021

AbstractChemical bonding in main‐group IV chalcogenides is an intensely discussed topic, easily understandable because of their remarkable physical properties that predestine these solid‐state materials for their widespread use in, for instance, thermoelectrics and phase‐change memory applications. The atomistic origin of their unusual property portfolio remains somewhat unclear, however, even though different and sometimes conflicting chemical‐bonding concepts have been introduced in the recent years. Here, it is proposed that projecting phononic force‐constant tensors for pairs of atoms along differing directions and ranges provide a suitable and quantitative descriptor of the bonding nature for these materials. In combination with orbital‐based quantitative measures of covalency such as crystal orbital Hamilton populations (COHP), it is concluded that the well‐established many‐center and even n‐center bonding is an appropriate picture of the underlying quantum‐chemical bonding mechanism, supporting the recent proposal of hyperbonded phase‐change materials.
Mechanochromic, Structurally Colored, and Edible Hydrogels Prepared from Hydroxypropyl Cellulose and Gelatin
Authors: Barty‐King Charles H. , Chan Chun Lam Clement , Parker Richard M. , Bay Mélanie M. , Vadrucci Roberto , De Volder Michael , Vignolini Silvia 
Published: July 2021

AbstractHydroxypropyl cellulose (HPC) is an edible, cost‐effective and widely used derivative of cellulose. Under lyotropic conditions in water, HPC forms a photonic, liquid crystalline mesophase with an exceptional mechanochromic response. However, due to insufficient physical cross‐linking photonic HPC can flow freely as a viscous liquid, preventing the exploitation of this mechanochromic material in the absence of any external encapsulation or structural confinement. Here this challenge is addressed by mixing HPC and gelatin in water to form a self‐supporting, viscoelastic, and edible supramolecular photonic hydrogel. It is demonstrated that the structural coloration, mechanochromism and non‐Newtonian shear‐thinning behavior of the lyotropic HPC solutions can all be retained into the gel state. Moreover, the rigidity of the HPC‐gel provides a 69% shorter mechanochromic relaxation time back to its initial color when compared to the liquid HPC–water only system, broadening the dynamic color range of HPC by approximately 2.5× in response to a compressive pressure. Finally, the ability to formulate the HPC‐gels in a scalable fashion from only water and “food‐grade” constituents unlocks a wide range of potential applications, from response‑tunable mechanochromic materials and colorant‐free food decoration, to short‐term sensors in, for example, biodegradable “smart labels” for food packaging.
Tailor‐Made Polyhydroxyalkanoates by Reconstructing Pseudomonas Entomophila
Authors: Li Mengyi , Ma Yueyuan , Zhang Xu , Zhang Lizhan , Chen Xinyu , Ye Jian‐Wen , Chen Guo‐Qiang 
Published: July 2021

AbstractMicrobial polyhydroxyalkanoates (PHA) containing short‐ and medium/long‐chain‐length monomers, abbreviated as SCL‐co‐MCL/LCL PHAs, generate suitable thermal and mechanical properties. However, SCL‐co‐MCL/LCL PHAs with carbon chain longer than nine are difficult to synthesize due to the low specificity of PHA synthase PhaC and the lack of either SCL‐ or MCL/LCL monomer precursor fluxes. This study succeeds in reprogramming a β‐oxidation weakened Pseudomonas entomophila containing synthesis pathways of SCL 3‐hydroxybutyryl‐CoA (3HB) from glucose and MCL/LCL 3‐hydroxyalkanoyl‐CoA from fatty acids with carbon chain lengths from 9 to 18, respectively, that are polymerized under a low specificity PhaC61‐3 to form P(3HB‐co‐MCL/LCL 3HA) copolymers. Through rational flux‐tuning approaches, the optimized recombinant P. entomophila accumulates 55 wt% poly‐3‐hydroxybutyrate in 8.4 g L−1 cell dry weight. Combined with weakened β‐oxidation, a series of novel P(3HB‐co‐MCL/LCL 3HA) copolymers with over 60 wt% PHA in 9 g L−1 cell dry weight have been synthesized for the first time. P. entomophila has become a high‐performing platform to generate tailor‐made new SCL‐co‐MCL/LCL PHAs.
Engineered Mechanosensors Inspired by Biological Mechanosensilla
Authors: Wang Qian , Fan Cheng , Gui Yuecheng , Zhang Lei , Zhang Junqiu , Sun Lining , Wang Kejun , Han Zhiwu 
Published: July 2021

AbstractBionic engineering provides a promising way for promoting the development of science and technology. Next‐generation diversified mechanosensors that can efficiently sense four types of mechanical signals, including tactile, vibration, air/water flow, and sound, are also benefiting from the bioinspired approach. Natural organisms have evolved sophisticated biological mechanosensilla with excellent performance, such as ultrahigh sensitivity, resolution, stability, anti‐interference, and miniaturization, providing a great deal of inspiration for urgently needed mechanosensors that are difficult to achieve through conventional methods. Here, the recent advances in biological mechanosensilla and corresponding bioinspired mechanosensors are reviewed in detail. According to the classification of the mechanosensilla, i.e., tactile sensilla, vibrational sensilla, flow sensilla, and acoustic sensilla, this review is mainly divided into four parts. In each part, the research on functional mechanisms of the mechanosensilla based on well‐organized mechanosensory micro/nanostructures and unique functional materials, as well as the bionic design strategy and preparative technique of bioinspired mechanosensors are individually summarized and discussed. Meanwhile, insight into the further efforts in comprehensive understanding of the mechanosensilla, learning from the multiperformance integration of sensilla, and establishing the efficient preparation methods for bioinspired mechanosensors is provided, all of which are needed to be addressed urgently before having bioinspired mechanosensors of practical value.
Green Materials and Technologies for Sustainable Organic Transistors
Authors: Torricelli Fabrizio , Alessandri Ivano , Macchia Eleonora , Vassalini Irene , Maddaloni Marina , Torsi Luisa 
Published: July 2021

AbstractIntelligent objects, autonomous factories and humans browsing the real world with artificial technology‐based capabilities is not the movie set of a new saga but what is going to happen with next‐generation electronics and bioelectronics fabricated with emerging materials, technologies, and devices. The emergence of (bio)electronics as a ubiquitous feature of an advanced modern society is posing the challenge of managing an ever‐increasing amount of e‐waste, also making the recovery more and more difficult. Thus, new design approaches are required considering that a possibly small but significant fraction of mass‐scale e‐products is inherently impossible to recover. In this perspective, organic materials and technologies can provide important solutions. This review presents and analyses green materials and technologies underpinning the development of sustainable organic transistors, which promise to become key components for Earth‐safe wide‐spread electronics and bioelectronics.
A Microfluidic Acoustic Metamaterial using Electrowetting: Enabling Active Broadband Tunability
Authors: Bansal Shubhi , Subramanian Sriram 
Published: July 2021

AbstractWhile acoustic metamaterials provide extraordinary control to manipulate sound waves, their physical realization and applicability are severely impeded by the limited tunability, narrow operational frequency range, and non‐compact designs. Integrating liquids with active actuation mechanism in the metamaterials provides broader material and design scope. Active microfluidic techniques for liquid actuation, never used in metamaterials before, will enable active tunability for liquid‐embedded metamaterial designs, leading toward a novel class of “microfluidic acoustic metamaterials (MAM).” This work demonstrates deep‐subwavelength ultra‐compact tunable MAM, consisting of a slit aperture which is tuned by electrically moving a liquid droplet over it using electrowetting‐on‐dielectric. The proposed design makes MAM inherently multi‐stable, and the ability to tune the acoustic field by moving the emission source point provides widescale efficient precision and multiple degrees of freedom. MAM realizes active acoustic switching and amplitude modulation of more than 20 dB and phase modulation from 0 to 2π with greater than 80% transmission efficiency analyzed analytically, experimentally, and numerically. MAM also delivers broadband operations ranging from 35 to 45 kHz. This design strategy opens state‐of‐the‐art pathways for automating, tuning, and miniaturizing metamaterials by using microelectromechanical (MEMS) and microfluidic concepts.