bluuebunny/crossref_metadata_2025 huggingface dataset:
Spacer effects on thermal-hydraulic performance of fluid flow at supercritical pressure in annular channel - CFD methodology
Authors: Dhurandhar Satish Kumar , Sinha S. L. , Verma Shashi Kant
Published: March 2022

Spacer is a vital component in assembly of nuclear fuel rod bundles. It is used to support and maintain suitable distance between the rods in assembly of nuclear fuel bundle. Spacer promotes the local heat transfer in downstream to the spacer in rod bundle. The objective of present work is to analyse the spacer effects on thermal and hydraulic performance of R-134a at supercritical condition of pressure 4.5 MPa in an annular flow. A Computational Fluid Dynamics (CFD) code ANSYS Fluent has been used for present numerical analysis and SST (Shear Stress Transport) k-ω turbulence model was considered for turbulence flow analysis. Numerical analysis was carried out in an annular channel of 6 mm hydraulic diameter with spacer, located at middle of channel. Hydraulic and thermal performance due to the spacer have been investigated for three different mass flow rates (0.33175, 0.41469 and 0.53909 kg/s) and three different heat fluxes (60, 100 and 160 kW/m2 ). Two blockage ratios of 0.3 and 0.38 have been used in present analysis. Due to the presence of spacer as flow obstruction, it is observed that at spacer location, velocity increased significantly and subsequent decrease in pressure. Also; it is noticed that the wall temperature is decreased and corresponding coefficient of heat transfer enhanced significantly at the location of spacer in annular channel. The observed value of ratio of Nusselt number for the case of spacer and without spacer (Nu/Nu*) shows better agreement with correlations data for flow obstacle at Re=97000.
Ectopic Cushing’s syndrome from an ACTH-producing pheochromocytoma with a non-functioning pituitary adenoma
Authors: Kishlyansky David , Kline Gregory , Mahajan Amita , Koro Konstantin , Pasieka Janice L , Champagne Patrick
Published: March 2022

An adrenocorticotropic hormone (ACTH)-producing pheochromocytoma (PCC)/paraganglioma is the cause of ectopic Cushing’s syndrome (CS) in 5.2% of cases reported in the literature. We present a previously healthy 43-year-old woman admitted to our hospital with cushingoid features and hypertensive urgency (blood pressure = 200/120 mmHg). Her 24-h urinary free cortisol was >4270 nmol/day (reference range (RR) = 100–380 nmol/day) with a plasma ACTH of 91.5 pmol/L (RR: 2.0–11.5 pmol/L). Twenty-four-hour urinary metanephrines were increased by 30-fold. Whole-body CT demonstrated a 3.7-cm left adrenal mass with a normal-appearing right adrenal gland. Sellar MRI showed a 5-mm sellar lesion. MIBG scan revealed intense uptake only in the left adrenal mass. She was managed pre-operatively with ketoconazole and phenoxybenzamine and underwent an uneventful left laparoscopic adrenalectomy, which resulted in biochemical resolution of her hypercortisolemia and catecholamine excess. Histology demonstrated a PCC (Grading System for Adrenal Pheochromocytoma and Paraganglioma score 5) with positive ACTH staining by immunohistochemistry. A PCC gene panel showed no mutations and there has been no evidence of recurrence at 24 months. This case highlights the difficult nature of localizing the source of CS in the setting of a co-existing PCC and sellar mass.

Learning points

An adrenocorticotropic hormone (ACTH)-producing pheochromocytoma (PCC) is an important item to be considered in all patients presenting with ectopic Cushing’s syndrome (CS).

In exceptionally rare cases, patients with ectopic CS may present with multiple lesions, and a systematic approach considering all potential sources is crucial to avoid misdiagnosis.

CS with a large adrenal mass but lacking contralateral adrenal atrophy should raise suspicion of an ACTH-dependent process.

In patients with clinical suspicion of PCC, clinicians should be mindful of the use of steroids and beta-blockers without appropriate alpha blockade as they may precipitate an adrenergic crisis.
Distribution of excess charge carriers in bilateral macroporous silicon with the same thickness of porous layers
Authors: Onyshchenko V.F.
Published: March 2022

In this work, to calculate the distribution of the excess minority carrier concentration in bilateral macroporous silicon, the solution of the diffusion equation for stationary conditions is used, which is written for a monocrystalline substrate and macroporous layers. The solution to the diffusion equation is supplemented by boundary conditions at the interface between macroporous layers and a monocrystalline substrate and at the boundaries of a bilateral macroporous silicon sample. The dependence of the distribution of the excess minority carrier concentration in bilateral macroporous silicon with the same thickness of porous layers on the depth of macropores, the thickness of the sample of bilateral macroporous silicon, and the bulk lifetime of minority charge carriers is calculated. It is shown that the distribution function of the excess minority carrier concentration in bilateral macroporous silicon exhibits two maxima. The maxima are located in the frontal macroporous layer, near the surface of the sample, and in a monocrystalline substrate, near the interface, the frontal macroporous layer - monocrystalline substrate.
Intercalation of Li Atoms in TaSe2 Film's Anode with LiClO4/PEO Polymer Electrolyte: First Principles Calculation
Authors: Prikhozha Yu. O. , Balabai R.M.
Published: March 2022

Using the methods of electron density functional and pseudopotential from the first principles, the total energy, energy reliefs and migration barriers of Li atoms in the interlayer space of layers of anode material made of 2H-TaSe2, 2H-TaSe2 with molecules of polymer electrolytes LiClO4, PEO and LiClO4/PEO, charges on Se atoms limit the interlayer space2H-TaSe2, spatial distributions of valence electron density and their cross sections.
From the Hip - My Experience with an Interdisciplinary SSHRC Grant
Authors: Beard Colleen
Published: March 2022

Please welcome as guest author our long-standing colleague and friend Colleen Beard, Librarian Emeritus, Map, Data and GIS, Brock University. Colleen’s account of her ongoing research opens our eyes to the fascinating environmental history of the Welland Canal. She shares her experience of involvement with a SSHRC Insight Development Grant-funded project, and explains how knowledge of local environmental history and the varied technical skills of our trade have much to add to academic partnerships. As we redefine the nature of our work and reconsider research library mandates, the trend towards becoming full partners in research is important - a wonderful challenge and opportunity for many of us. Thank you, Colleen for continuing to inspire and lead us! We’ll see you at Puddy’s Bar & Grill for the next HWCMP talk!

Barbara Znamirowski (Editor, GIS Trends)
Una aproximación a los Headhunters. La desigualdad de género en los sistemas de selección de personal en los cargos de alta dirección
Authors: Medina-Vicent Maria
Published: March 2022

Este breve artículo parte de una investigación sobre el liderazgo de las mujeres en el ámbito empresarial desde un punto de vista filosófico. En este sentido, esta contribución se centrará en una reflexión ética sobre el acceso de las mujeres a los cargos de alta dirección empresarial. Específicamente, más allá de las barreras invisibles que enfrentan las mujeres profesionales en el ascenso dentro de las organizaciones empresariales, reflexionaremos sobre el papel de los sistemas de selección de personal (de altos cargos) en la perpetuación de la desigualdad de género en el mundo de los negocios. Esta reflexión se realizará a través de la figura del/la cazatalentos en ese mismo proceso de reclutamiento. Estudiar esta figura resulta interesante porque interviene directamente en el proceso de contratación de altos cargos directivos de grandes empresas. Su trabajo, basado en las redes de contactos, de influencia y recomendaciones, puede aportar luz sobre cómo las mujeres también se encuentran en desventaja en este sentido, al no formar parte de dichas redes.
Violencia y género en el cuento “Violentada”, de Rafael Gallo y en poemas de Adelaide Ivánova
Authors: Dutra Paula Queiroz
Published: March 2022

La violencia contra las mujeres puede considerarse un problema de salud pública a nivel global. No obstante, su erradicación solo ha comenzado a comprenderse como parte fundamental de la agenda de las organizaciones internacionales para los derechos humanos desde tiempos recientes. Esta cuestión no resulta recurrente en la actualidad literaria brasileña, como ha sido señalado por algunos de los más importantes investigadores del campo (Dalcastagnè, 2010), un síntoma claro de la invisibilidad de este problema en la sociedad actual. A partir del análisis del relato corto “Violentada”, escrito en 2012 por el autor brasileño Rafael Gallo, este artículo pretende reflexionar acerca de la representación de la violencia contra la mujer en la actualidad literaria brasileña de autoría masculina, principalmente a través del análisis de los distintos tipos de violencia ejercidas sobre la protagonista de la obra desde la perspectiva de los estudios de género, los estudios de violencia y la crítica literaria feminista. Como contrapunto, con el objetivo de reflexionar acerca de la perspectiva social de ambos autores (Young, 2006) y de la representación de la violencia contra las mujeres, este artículo se servirá de algunos de los poemas publicados por Adelaide Ivánova en el libro O martelo (2017), centrado en el acto de la violación.
El trabajo de las mujeres en las sociedades capitalistas: una cuestión de enajenación y sobreexplotación
Authors: Flores Solares Ivonne Angelica , Pineda Salazar Sibyl Italia
Published: March 2022

En la actualidad, existen una diversidad de movimientos feministas que buscan promover un cambio social basado en el reconocimiento del papel que desempeñan las mujeres en los espacios sociales, políticos y económicos. En el caso particular de los movimientos igualitarios y liberales, sus luchas se concentran en promover al trabajo como el espacio a partir del cual las mujeres pueden alcanzar la autonomía económica y la emancipación. Esta visión, sin embargo, deja de lado que el trabajo en las sociedades capitalistas representa una actividad que se realiza en condiciones de explotación y que, por lo tanto, resulta en enajenación y sometimiento de los trabajadores y, en especial, de las mujeres. En ese sentido, el objetivo de este artículo es discutir a la luz de la teoría de Marx, las características del trabajo asalariado y la forma particular que asume el trabajo de las mujeres en las sociedades capitalistas. Esto con el objetivo de explicar las limitaciones de los movimientos feministas que impulsan al trabajo como el factor central de reivindicación económica de las mujeres. Para ello, la discusión se presenta en tres secciones. En la primera, se exploran los argumentos históricos y teóricos por los que el feminismo igualitario y liberal se configuran alrededor de la defensa del trabajo como elemento central en la lucha por la reivindicación de las mujeres. En la segunda, se discuten las características particulares del trabajo asalariado dentro de las sociedades capitalistas y, finalmente, en la tercera sección, se discuten las razones por las que el trabajo de las mujeres lejos de representar una actividad emancipatoria, opera más bien como un mecanismo de enajenación y sobreexplotación.
La modificación del código genético
Authors: Montoliu Lluís
Published: March 2022

La modificación del genoma humano a voluntad es una idea que ronda a los investigadores desde los años 70 del siglo pasado. Tras la aparición de las primeras técnicas de ingeniería genética y los sucesivos métodos de transgénesis que fueron desarrollándose posteriormente siempre estuvo presente el anhelo o temor de poder modificar el ADN humano. Sin embargo esto no se pudo constatar hasta 2013, con la aparición de las herramientas de edición genética CRISPR?Cas, que facilitaron y universalizaron los procedimientos de alteración genética dirigida, sobre genes específicos.
El impacto de las redes sociales en las personas y en la sociedad: redes sociales, redil social, ¿o telaraña?
Authors: Blasco Fontecilla Hilario
Published: March 2022

Las redes sociales tienen dos funciones bien claras, facilitar la comunicación y el intercambio de información y hacer favorecer la creación de comunidades. Esas dos funciones pueden ayudar a entender su rápido crecimiento y su omnipresencia en la vida de las personas. No obstante, este fenómeno puede entenderse como una consecuencia indirecta de vivir en una sociedad del vacío, profundamente infeliz a pesar la amplia oferta de una felicidad basada en el consumo. Y eso nos lleva a tener que explorar la complejidad del problema y el daño que esas redes están provocando en la sociedad. Es probable que las redes sociales tengan un rostro bifronte, héroes y villanos al mismo tiempo. Una primera aproximación nos dice que sirven para comunicar y para crear comunidades; pero profundizando algo más quizá su función sea aparentar que se llena el vacío y la infelicidad de las personas a través de las compras y el cotilleo. El riesgo de imbecilización de la población o de su transformación en una tela de araña que nos atrape a todas las personas en una dictadura encubierta, 1984 que no proporciona más felicidad que la que del mundo feliz de Huxley. No obstante, conviene mantener la esperanza de que no llegaremos a esas situaciones tan negativas. Posiblemente volvamos a pararnos a punto de pulsar el botón rojo de nuestra autodestrucción.
Analysis of Timely Access to Healthcare and Difficulty Procuring Specialist Care Among Children with and without Anxiety or Depression Disorders
Authors: Wu Jingwei , Paoletti Andrew , DeLago Cynthia
Published: March 2022

Background: To examine disparities to access preventive care and specialist care in children with anxiety or depression disorders.

Methods: The population of interest was extracted from the National Survey of Children’s Health 2011/2012 (NSCH 2011/12) data set. The sample included children (0-17 years old) and their caregivers who completed the survey. Data were analyzed from February 2011 to June 2012. Outcome variables included reports for missed or delayed care, and problems procuring specialist care based on parental response to interview questions. Covariates included child/caregiver demographics, insurance status, household employment, and poverty levels.

Findings: A total of 85 536 records were extracted from the NSCH 2011/12 data set. The covariate-adjusted odds (also adjusted as necessary using the correct sampling methods suggested by the NSCH) of having delayed or missed care for a child with anxiety or depression were 2.26 (95% confidence interval [CI], 1.83-2.79, p<0.001) times higher than a child without anxiety or depression. The covariate-adjusted odds of the caregiver reporting problems procuring specialist care for a child with anxiety or depression were 1.66 (95% CI, 1.45-1.88, p<0.001) times higher than a child without these diagnoses.

Conclusions: Children with anxiety or depression are less likely to obtain timely preventive care and have problems procuring specialist care. These findings highlight a disparity that requires the attention of healthcare providers and outreach programs.
Stage related metabolic profile of synovial fluid in patients with acute flares of knee osteoarthritis
Authors: Bocsa Delia-Corina , Socaciu Carmen , Iancu Stefania D. , Pelea Michael Andrei , Gutiu Roxana Ioana , Leopold Nicolae , Fodor Daniela
Published: March 2022

Background and aim. Osteoarthritis (OA) is the most common joint condition and the leading cause of pain and disability in elderly patients. Currently, there is no biomarker available for the early diagnosis of OA, and limited data is available regarding the molecular basis of progression for OA. For this reason, this study aimed to identify the metabolomic profile of early and late OA using high-performance liquid chromatography coupled with untargeted mass spectrometry (LC-MS).

Methods. 31 patients with knee OA and joint effusion were enrolled. Based on Kellgren/Laurence scale, 12 patients were classified as early OA (eOA) and 19 as late OA (lOA). The synovial fluid (SF) was collected and characterized by untargeted LC-MS. Only the metabolites identified in more than 25% of each group were kept for further analysis. Principal component analysis (PCA) enabled the unsupervised clustering of the eOA and lOA groups. Further, for classification, the best three principal components (PCs) were used as input for two machine learning algorithms (random forest and naïve Bayes), which were trained to discriminate between the eOA and lOA groups.

Results. 43 metabolites were identified in both eOA and lOA, but after selecting the metabolites present in at least 25% of the patients in each group, the metabolomics analysis yielded a panel of only nine metabolites: four metabolites related to phospholipids (phosphatidylcholine 20:0/18:2 and 18:0/20:2, sphingomyelin, and ceramide), three metabolites belonging to purine metabolites (inosine 5'-phosphate, adenosine thiamine diphosphate, and diadenosine 5',5'-diphosphate), one metabolite was a gonadal steroid hormone (estrone 3-sulfate), and one metabolite represented by heme, with all but ceramide (d18:1/20:0) being enriched in the lOA group. By using as features the best three PCs (PC2, PC8 and PC9), random forest and naïve Bayes machine learning algorithms yielded a classification accuracy of 0.81 and 0.78, respectively.

Conclusion. Our LC-MS analysis of SF from patients with eOA and lOA indicates stage-dependent differences, lOA being associated with a perturbed metabolome of phospholipids, purine metabolites, gonadal steroid hormones (estrone 3-sulfate) and a heme molecule. Specific questions need to be answered regarding the biosynthesis and function of these metabolites in osteoarthritic joints, with the aim of developing new relevant biomarkers and therapeutic strategies.
VYPIS’ ABOUT THE SECOND MARRIAGE OF VASILIY THE THIRD: A DOCUMENT OR A LITERARY STYLE IMITATION?
Authors: Bulanin Dmitrii
Published: March 2022

The article examines a landmark text of Old Russian literature entitled Vypis’. The author of Vypis’ declares it an extract from a genuine message that was sent to Moscow by the monks of Mount Athos. In reality, the text is in no way an extract, and the message from which it is supposedly taken has never existed. Vypis’ is a convoluted story about the decision of the Grand Duke Vasiliy the Third to divorce his first wife and take a new one. Several bold representatives among the Russian clergy, Eastern patriarchs and Athonite monks — all of them considered the prince’s intention to be a violation of church canons. Vypis’ is filled with factual errors; thus, it is devoid of value as a historical document, but is of interest as a literary phenomenon. The literary sources of Vypis’, its influence on other literary pieces, its unusual language with a large number of agrammatisms and strange barbarisms are analyzed in the article. The text is compared with the first style imitation experiments which were conducted in course of discussions on the Russian-Turkish relations. By the complex of its features, Vypis’ can be dated the last decades of the 16th century. It can be defined as a failed attempt to create a literary style imitation. The author believes Vypis’ was composed in Chudov Monastery or by one of Orthodox church defenders in Lithuania.
Inductive hyperthermia planning for patients with breast cancer metastasis to lymph nodes
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Mokhonko O.I. , Orel V.E. , Smolanka (Sr.) I.I. , Syvak L.A. , Loboda A.D. , Dosenko I.V. , Lyashenko A.O. , Smolanka (Jr.) I.I. , Rykhalskyi O.Yu. , Orel V.B. , Dasyukevich O.I. , Tarasenko T.Ye. , Vovyanko S.I. ,   National Cancer Institute, Kyiv, Ukraine,   National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine
Published: March 2022

Inductive hyperthermia treatment plans were built using Comsol Multiphysics software for patients with breast cancer metastasis to lymph nodes. To assess the influence of electromagnetic irradiation on temperature increase in metastatic lymph nodes, treatment plans were based on moderate hyperthermia parameters (< 42 °C). The proposed technology can be used to provide a more personalized approach to treatment planning for patients with locally advanced breast cancer receiving combination therapy which involves neoadjuvant chemotherapy and expand eligibility for organ-preserving surgery.
Rare Earth Minerals in Veined Nepheline Syenites of the Chernihivka Carbonatite Massif of the Azov Region
Authors: DUBYNA O.V. , KRYVDIK S.G. , VYSHNEVSKYI O.A.
Published: March 2022

We studied partially altered veined nepheline syenites at the Chernihivka carbonatite massif of the Azov region, Ukraine. The major minerals of the syenite are albite, altered nepheline, biotite and calcite. Fluorapatite, allanite-(Ce), monazite-(Ce), barite and stronalsite occur as minor accessory phases. The primary minerals, containing REE in the veined rocks, reflect re-equilibration in a mineral/fluid systems and recrystallization of primary rock-forming minerals. The high initial concentration of CaO, CO32–, alkalis and volatile components caused a concentration of REEs in the late differentiated portions of the phonolite melt. The intrusion of the melt into wall-rocks of different composition, together with the excees of Al and Si in solution, caused allanite-(Ce) crystallization. Subsequent postmagmatic fluids contributed to Ba, Sr and REE leaching from major rock-forming apatite and calcite and led to the crystallization of secondary monazite-(Ce), barite and stronalsite.
EFFECTS OF SYNTHESIS CONDITIONS ON STRUCTURE OF TIN NANORODS PREPARED BY SURFACTANT-ASSISTED CHEMICAL REDUCTION METHOD
Authors: Vo Chi Cuong , Ho Van Phuoc , Vu Minh Tan , Nguyen Truong Xuan Minh , Huynh Ky Phuong Ha , Nguyen Son Truong
Published: March 2022

Metallic nanorods/nanowires have recently become the focus of intensive research due to their unique properties and have been used to fabricate electronic, energy devices and sensors in nanoscale. In this study, tin nanorods were synthesized through a surfactant assisted chemical reduction method in aqueous solutions at low temperature (~ 0 oC). Sodium dodecyl sulfate (SDS) and sodium borohydride (NaBH4) were used as the surfactant and reductant, respectively. Parameters such as pH, surfactant concentration, and temperature were studied to control the diameter and length of the nanorods formed. The structure, composition and surface morphology of the obtained products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results showed that the morphology as well as the aspect ratio of tin nanorods could be effectively controlled by adjusting the parameters of the synthesis process. It was found that tin nanoparticles were formed at 30 oC while nanorods appeared at lower temperatures (0, 5 oC). A low SDS concentration of 4 mM helped to form Sn nanoparticles but higher SDS concentrations of 8, 12 mM facilitated the growth of nanorods. The increase of SDS concentration reduced the length of nanorods. pH values less than 4.5 were found to be favorable to the formation of nanorods.
SYNTHESIS OF NOVEL UV-LIGHT CURABLE SHAPE-MEMORY POLYURETHANES
Authors: Nguyen Song Duc Anh , Nguyen Thi Mai Ly , Dang Huan Hoang , Truong Thuy Thu , T. Nguyen Le Thu
Published: March 2022

. Polyurethanes (PU) are one of the most studied materials due to their high mechanical performance, flexibility and shape-memory ability. When compared to other homopolymer elastomers, polyurethane displays superior toughness and tear resistance due to the inhomogeneity of its microstructural composition. When both soft and hard segments are used in conjunction, it is possible for the elastic matrix to achieve the appropriate modulus and deformation ability by varying the ratio between them. In this article, novel polyurethane materials with pendant stearyl side chains having shape-memory characteristics were synthesized by the UV-light curing process for the first time. The influence of the amount of cross-linkers produced during the polymerizations between aliphatic urethane acrylate (aUA) and stearyl acrylate (SA) under UV light treatment using 2,2-dimethoxyl-2-phenyl acetophenone (DMPA) as photoinitator was investigated. The goal of this research is to combine mechanical strength with sharp memory capabilities in polymeric materials using the above–mentioned unique PU network structure design. The shape recovery rate (Rr), shape retention rate (Rf), tensile strength deformation and reflection-Fourier transform infrared (ATR, FT-IR) were used for characterizing the synthesized materials. The results indicated that a sufficient quantity of SA in the structure (30 wt.%) lead to a nearly 100 percent improvement in shape recovery capacity but slightly decreased the mechanical characteristics of the materials.
MAGNETIC PHASE TRANSITION AND MAGNETOCALORIC EFFECT OF RE0.7Sr0.3MnO3 POLYCRYSTALLINE MATERIALS
Authors: Nguyen Thi Dung  , Tran Dang Thanh  , Nguyen Thi Viet Chinh  , Dao Son Lam  , Dinh Chi Linh  , Pham Thi Thanh  , Nguyen Huu Duc
Published: March 2022

In this report, we present some results of the magnetic phase transition nature and magnetocaloric effect of four polycrystalline ceramics of RE0.7Sr0.3MnO3 with RE = La, Pr, Nd and Sm, which were prepared by solid phase reaction method. X-ray diffraction data shows that all samples are single phase of RE0.7Sr0.3MnO3. The sample with RE = La belongs to the rhombohedral structure (space group: R3-c), whereas the other remaining samples belong to the orthorhombic one (space group: Pbnm). We pointed out that the difference in ionic radius at the RE site plays an important role in modifying the nature and Curie temperature (TC) of the ferromagnetic-paramagnetic phase transition of RE0.7Sr0.3MnO3 compounds. Namely, the RE = Nd sample has the characteristics of the first-order magnetic phase transition with TC = 242 K. Meanwhile, for RE = La, Pr, and Sm, the materials exhibit the characteristics of the second-order magnetic phase transition with TC = 360, 262, and 98 K, respectively. Among these, the magnetic phase transitions of two compounds with RE = Pr and Nd occur near room temperature with very large magnetocaloric effects. The values of the maximum magnetic entropy changes are higher than 3 J/kgK under magnetic field change of 10 kOe, suggesting their potential application in the field of civil magnetic refrigeration. The nature of the magnetic phase transition and the characteristic quantities related to the magnetocaloric effects of the RE0.7Sr0.3MnO3 compounds were studied and discussed in detail through the temperature and magnetic field dependences of the magnetization data.
EFFECTS OF SURFACE LIGANDS ON THE FORMATION OF SPHERICAL HOLLOW NICKEL PHOSPHIDE NANOPARTICLES AND THEIR SELF-ASSEMBLIES
Authors: Tran Minh Hoang , Shi Miao , Du Qing , Yang Hong
Published: March 2022

Nickel phosphide nanoparticles have been well known for their electrical, catalytic, and corrosion-resistant properties. In the synthesis of hollow nickel phosphide nanoparticles, the role of surface ligands was very important in forming hollow structures. Thus, in this article, we systematically investigated the effects of different ligands on the formation of spherical hollow nickel phosphide nanoparticles. Specifically, our results showed that when primary amines with long alkyl chains were used, spherical hollow nickel phosphide nanoparticles were obtained. On the other hand, when amines with bulky head groups, bulky alkyl chains, or ligands with different head groups were used, spherical hollow nickel phosphide nanoparticles did not form. Furthermore, moderate use of tri-n-octylphosphine (TOP), another surface ligand and P precursor, was also a contributing factor to the hollow nickel phosphide formation. Interestingly, we discovered that limited use of TOP induced self-assembling of spherical hollow nickel phosphide nanoparticles into micro-sized assemblies. The assemblies were spherical, compact and uniform, which further showing the use of surface ligands as a tool to engineer novel material structures from the nano-/micro-scales. We are currently directing our efforts toward more understanding of the self-assembling mechanism at the sub-nano scale as well as proposing possible application for our nanoparticles and their assemblies.
Gótico & Queer: uma análise de Lost Souls, de Poppy Z. Brite
Authors: Santos Andrio de Jesus Rosa dos
Published: March 2022

Resumo: A subcultura gótica apresenta uma disposição altamente performática, algo que se reporta a sexualidade, corpo e gênero e, assim, a cena propicia o surgimento de identidades queer. O autor transgênero Poppy Z. Brite insere o romance Lost Souls nesse contexto, sendo um dos poucos autores de ficção gótica a relacionar sua obra à subcultura de mesmo nome. Nesse artigo, discorro sobre a subcultura gótica em paralelo à teoria de gênero de Butler, então analiso o desenvolvimento da personagem Nothing, de Lost Souls, em relação à estética da cena gótica.
A presença da colonialidade no cinema feminista latino-americano
Authors: Noronha Danielle Parfentieff de , Ezequiel Maíra
Published: March 2022

Resumo: Este artigo investiga de que forma a colonialidade está presente em algumas narrativas desenvolvidas pelo cinema feminista latino-americano produzido entre os anos 1960 e 1970, a partir da análise de três filmes: Araya, de Margot Benacerraf (Venezuela, 1959), De cierta manera, de Sara Gómez (Cuba, 1974) e A propósito de la mujer, de Kitico Moreno (Costa Rica, 1975). Em diálogo com teóricas feministas e com a perspectiva decolonial latino-americana, nosso objetivo é compreender como os filmes, entendidos como atos de resistência, refletem sobre o colonialismo do passado e do presente, em especial através do pensamento de María Lugones (2008; 2019).
Lugones e o escurecer do ensino de história
Authors: Silva Janaina Guimarães da Fonseca e
Published: March 2022

Resumo: Neste artigo, apresento discussões teóricas sobre o ensino de história realizado por e sobre mulheres negras para as quais o conceito de colonialidade de gênero, elaborado por María Lugones, é imprescindível. E em seguida, analiso algumas atividades do ensino de história numa perspectiva decolonial, com o uso de audiovisuais protagonizados por mulheres negras, aplicadas na Escola Dom Mota, na Cidade de Nazaré da Mata, em Pernambuco.
Viajar-mundos hacia María Lugones
Authors: Bidaseca Karina , Costa Michelly Aragão Guimarães
Published: March 2022

Resumen: Nos propusimos viajar-mundos rumbo al pensamiento teórico-práctico de la filósofa feminista decolonial, investigadora, educadora, cantora, activista, lesbiana y peregrina de “viajar-mundos” María Lugones. Nuestro objetivo fue mapear a través de sus obras reunidas en diferentes territorios, sus vivencias, reflexiones y activismos para pensar las posibilidades de construcción de coaliciones de relaciones entre “mujeres de color” de América Latina y otras geopolíticas. Su obra y vida son nuestros archivos literarios vivos para situar los feminismos a lo largo del siglo XX y XXI. Los conceptos de “fusión” sobre la articulación entre la raza y el sexo-género, “coaliciones de resistencias”, y “viajar mundos” son perspectivas valiosas que contribuyen al pensamiento feminista no-hegemónico, así como nos dan pistas para generar estrategias de resistencias humanas y no humanas en una tierra dañada.
Interrogando Lugones: reflexões sobre um debate inconcluso
Authors: Costa Claudia de Lima
Published: March 2022

Resumo: Neste artigo traço, em linhas gerais, primeiramente, um breve esboço da genealogia do conceito de interseccionalidade, suas contribuições relevantes para os feminismos e suas apropriações equívocas para, em um segundo momento, analisar a leitura crítica que María Lugones faz do conceito e assinalar alguns limites dessa avaliação.
Cumulative prevalence of biological and social risk factors at birth in a city in São Paulo
Authors: da Cruz Aline Adryane Morishigue Bássiga , dos Santos Lucas Cardoso , Minharro Michelle Cristine de Oliveira , Aguiar Alencar Rúbia
Published: March 2022

ABSTRACT Objective: to identify the cumulative prevalence of biological and social risk factors at birth. Method: a cross-sectional study, with retrospective data collection, carried out with live births in a medium-sized city, from January 2018 to July 2020. A database was used with information aimed at identifying social and biological risks after birth, assessed descriptively. Results: the sample consisted of 4,480 newborns, of which 78.9% were classified as at usual risk, and 21.1% as at risk. The cumulative prevalence showed that most newborns had more than one risk factor, with biological risks being the most prominent: need for admission to Intensive Care Unit, birth with less than 37 weeks of gestation and weight less than 2,500 g. Among the social risks, the following stand out: newborns who had a dead sibling aged less than 5 years old; head of family without income; mothers under 16 years old and who did not undergo prenatal care. The biological risk rate was 7.39 times higher than the social risk rate. Conclusion: the cumulative prevalence of the risks found was significant, with a considerable part of the sample presenting some biological risk.
Interdependence in the therapeutic compliance of hypertensive older adults during the COVID-19 pandemic
Authors: de Oliveira Lopes Thamyres , de Castro Santos Jéssica , Ribeiro Bitencourt Graziele , Mônica Andrade Angélica , Alves Silva Renan , Lopes Rafael Oliveira Pitta
Published: March 2022

ABSTRACT Objective: to analyze stimuli and behaviors related to interdependence and their implications for compliance with the therapeutic regimen of older adults with hypertension during the COVID-19 pandemic. Method: a multiple case, qualitative study, carried out with fifteen older adults treated at a Family Health Strategy unit. A characterization instrument and semi-structured interview were used for data collection. Data were processed in NVivo12, submitted to thematic content analysis, based on Roy’s interdependence mode. Results: the reports seized showed that the family has meaning as a therapeutic support network, as well as health services, neighbors, friends and religious institutions. Two categories emerged: Stimuli and adaptive behaviors related to interdependence in the pandemic: implications for compliance; Ineffective stimuli and behaviors related to interdependence in the pandemic: implications for compliance. Conclusion: adaptive and ineffective behaviors related to interdependence during the adjustment to the new condition of social distancing demonstrate the need for greater professional attention to achieve compliance with treatment.
Covid-19, Desigualdades e Privilégios na Educação Profissional Brasileira
Authors: Anjos Hellen Vivian Moreira dos , Cardoso Antônio Dimas
Published: March 2022

RESUMO Covid-19, Desigualdades e Privilégios na Educação Profissional Brasileira. Este artigo aborda a questão das desigualdades e dos privilégios entre estudantes da Educação Profissional brasileira no contexto da pandemia da Covid-19. O nosso objetivo é problematizar as dificuldades de acesso dos estudantes às aulas remotas ofertadas pelo Instituto Federal de Educação, Ciência e Tecnologia do Norte de Minas Gerais – IFNMG. Levando em consideração esse contexto, este trabalho, à luz do conceito de Capital Cultural de Bourdieu e Passeron (2018), ao analisar dados recentes de um relatório técnico produzido pela Instituição, constata a persistência de uma estrutura educacional de reprodução das desigualdades sociais que também se estende dramaticamente para o ambiente virtual, reproduzindo formas de dominação e privilégios de classe.
The FAIR Accessor and the authenticity of digital archival information
Authors: PACHECO André Pereira , FREITAS Maria Cristina Vieira de , SILVA Carlos Guardado da
Published: March 2022

Abstract The constant increase in digital information’s volume, variety, and complexity poses many problems that make it difficult to preserve archival information while ensuring that it remains authentic, reliable, accessible, trustworthy, intelligible, and reusable for as long as possible. This study explores the concepts of a possible implementation of a FAIR Accessor, a technology developed to provide Findable, Accessible, Interoperable, and Reusable research data, as an infrastructure that can support and aid archival information description and ensure its authenticity. A qualitative literature review on a selection of representative works in the fields of Information Science, Diplomatics, and the FAIR principles is followed by a discussion on how the key concepts of each field overlay and thus may complement each other mutually. It is concluded that the infrastructure of the FAIR Accessor can prove useful in enriching archival description and, ultimately, in assisting to ascertaining the authenticity of records.
Wetting stability of flexible superamphiphobic surfaces under stretching loading
Authors: Xu Shuangshuang , Wang Qing , Wang Ning , Qu Lei
Published: March 2022

Wetting stability is important for superamphiphobic surfaces used in oil–water environments. Maintaining the wetting stability of flexible superamphiphobic surfaces under stretching is challenging. Here, flexible surfaces with stable superamphiphobicity under stretching were fabricated by covering flexible polydimethylsiloxane substrates with superamphiphobic powders. Superamphiphobic powders composed of micro- and nanoparticles were prepared by a chemical substitution reaction and modification treatment. The fabricated flexible surfaces possessed contact angles for water, kerosene and peanut oil of 155, 152 and 153°, respectively, exhibiting superhydrophobicity and superoleophobicity. The self-cleaning properties of the fabricated flexible surface were studied by removing contaminants from the surfaces using water and oil droplets. Also, the wettability and morphology of the fabricated flexible surface under stretching were investigated. It was found that the fabricated flexible surface maintained stable superhydrophobicity and superoleophobicity when the stretching strain reached 60% due to the fact that it still kept micro–nano double-scale structures after being stretched. The fabricated flexible surface coated with superamphiphobic powders with wetting stability is expected to be used in the field of liquid repellency.
Correction: Innovation and Agency: To What Extent Did Cultural Appropriation Affect the Development of Jewellery in Britain During the 1st to 2nd Centuries AD?
Authors: Webster Elizabeth
Published: March 2022

This article details a correction to the article. Webster, E. (2021). Innovation and Agency: To What Extent Did Cultural Appropriation Affect the Development of Jewellery in Britain During the 1st to 2nd Centuries AD? Theoretical Roman Archaeology Journal 4(1): 6, pp. 1–29. DOI: https://doi.org/10.16995/traj.4333
Etički aspekti u djelu Marthe Nussbaum
Authors:   , Kolednjak Marijana
Published: March 2022

Ethical aspects in Martha Nussbaums' work. Most emotion researchers deny that emotions are feelings. Some researchers acknowledge that emotions have feelings as components, but insist that emotions also contain other components such as cognition. On the other hand, part of popular psychology believes that emotions are feelings or conscious mental episodes associated with certain phenomena. We feel sad, happy, angry. We should not equate emotions with such feelings. One position argues that feelings are only a necessary but not a sufficient component of emotions. The second position represents the view that feelings are a contingent component. The third position is that feelings are not an integral part of emotions. These positions are just different ways of (dis) revealing emotions. This doctoral thesis is primarily focused on the philosophical exploration of emotions by the American philosopher Martha Nussbaum. She has given emotions a central role in moral philosophy by arguing that they are cognitive in nature - they embody judgments about the world.
Okullarda Örgütsel Güven, Örgütsel Vatandaşlık Davranışı ve Örgütsel Sessizlik İlişkisinin İncelenmesi
Authors: ALEV Sedat
Published: March 2022

Bu araştırmanın amacı, okullarda örgütsel güven, örgütsel vatandaşlık davranışları ve örgütsel sessizlik arasındaki ilişkinin incelenmesidir. Araştırmada, ilişkisel tarama modeli kullanılmıştır. Araştırmanın örneklemini, 2016-2017 eğitim öğretim yılında Gaziantep’teki ilkokullarda görev yapan 310 öğretmen oluşturmaktadır. Veriler, “Örgütsel Güven Ölçeği”, “Örgütsel Vatandaşlık Davranışları Ölçeği” ve “Örgütsel Sessizlik Ölçeği” ile toplanmıştır. Araştırma sonucuna göre, örgütsel güven, örgütsel vatandaşlık davranışlarını pozitif yönde, örgütsel sessizliği negatif yönde yordamaktadır. Ayrıca, örgütsel vatandaşlık davranışları örgütsel sessizliği negatif yönde yordamaktadır. Okullarda, güven odaklı bir kültür içerisinde öğretmenlerin duygu ve düşüncelerini rahat bir şekilde saklamadan ifade edecekleri, okulun yararına olacak işlerde görev almaya istekli olacakları ve örgütsel vatandaşlık davranışlarını daha çok sergileyecekleri söylenebilir. Okul yöneticilerinin güvene dayalı bir kültür oluşturmaları, öğretmenleri okulun gelişimi için teşvik edici çalışmalar yapmaya heveslendirmeleri, öğretmenlerin karar alma sürecine etkin bir şekilde katılmalarını sağlayarak birlikte karar almaları ve düşüncelerini rahat şekilde ifade edebilecekleri bir ortam oluşturmaları faydalı görülmektedir. Değişkenler arasındaki ilişki, ilkokullardaki öğretmenlerden toplanan verilerin analiz edilmesi yoluyla belirlenmiştir. Farklı eğitim kademelerinde de konu ile ilgili araştırmalar yapılabilir. Araştırma sonucunda ortaya çıkan ilişkilerin derinlemesine incelenmesi için nitel araştırma yöntemi ile desteklenerek karma desende araştırmalar yapılabilir. Öğretmenlerin yanı sıra yöneticilerin de bu konulardaki düşüncelerini belirlemeye yönelik araştırmalar yapılabilir.
Eğitim Fakültesi Öğrencilerinin Bilinçli Farkındalık Düzeyleri ile Yaşam Doyumu Arasındaki İlişki
Authors: BAŞAR Mustafa Aydin , KÖSEM Seda
Published: March 2022

Bu çalışmada amaç, eğitim fakültesinde öğrenim gören öğrencilerin bilinçli farkındalıkları ile yaşam doyum düzeyleri arasındaki ilişkiyi ortaya koymaktır. Çalışma evreni, ÇOMÜ Eğitim Fakültesinde 3 ve 4. sınıflarda öğrenim gören öğrencilerden oluşmuştur. İlişkisel tarama modelinde düzenlenen bu çalışmada yedi farklı bölümden 547 öğrenciye ulaşılarak “Bilinçli Farkındalık Ölçeği” ve “Yaşam Doyum Ölçeği” uygulanmıştır. Eğitim Fakültesi öğrencilerinin bilinçli farkındalık düzeyleri oldukça yüksek iken yaşam doyumları orta düzeydedir ve iki değişken arasında olumlu ve anlamlı bir ilişkinin varlığı saptanmıştır. Cinsiyetlere göre her iki değişkende de anlamlı fark bulunmamıştır. Öğrencilerin akademik başarıları bakımından, bilinçli farkındalık ve yaşam doyum düzeyleri en yüksek başarı grubu BB not ortalaması olanlardır. Son 10 yıllık yaşamını büyükşehirlerde geçirenlerin bilinçli farkındalığı, ilçe ve daha küçük yerleşim birimlerinde geçirenlere göre anlamlı biçimde daha yüksektir. Güzel Sanatlar Eğitimi Bölümü öğrencileri bilinçli farkındalığı, Fen Eğitimi Bölümü öğrencileri de yaşam doyumu en yüksek olan gruptur. Ulaşılan sonuçlar doğrultusunda öğrencilerin bilinçli farkındalık düzeylerini arttırmak ve yaşamdan doyum sağlamalarını anlamlı kılmak için ders ve seminerlerin açılması önemlidir.
Ottawa Üniversitesi (Kanada) ve Trabzon Üniversitesi (Türkiye) Sınıf Öğretmeni Yetiştirme Sistemlerinin Karşılaştırılması
Authors: BÜLBÜL Sevgi , GÜNEŞ Gönül
Published: March 2022

Bu araştırmanın amacı, Kanada’nın Ontario eyaletinde bulunan Ottawa Üniversitesi ve Trabzon Üniversitesinin sınıf öğretmeni yetiştirme sistemlerini karşılaştırmaktır. Çalışma kapsamında nitel araştırma yöntemlerinden karşılaştırmalı araştırmalarda da kullanılan betimsel analiz yapılmıştır Araştırma kapsamında iki ülkenin sınıf öğretmeni yetiştirme programlarına giriş koşulları, program müfredatı, mezuniyet koşulları, mesleğe giriş koşulları ve mesleki gelişim uygulamaları arasındaki benzerlik ve farklılıklar karşılaştırılmıştır. Karşılaştırma yapılırken Ontario ve Türkiye'de uygulanan sınıf öğretmenliği programları, müfredatları ve karşılaştırmalı eğitim çalışmalarından yararlanılmıştır. Çalışma sonucunda Türkiye’de sınıf öğretmenliği lisans programına giriş koşulu olarak merkezi sınav sonuçları alınırken Kanada’da lise not ortalaması ve özgeçmiş dosyası değerlendirmeye alınmaktadır. Öğretmenlik mesleğine girişte Türkiye’de merkezi sınav uygulanmakta iken Kanada’da 1 yıllık adaylık eğitiminin tamamlanması gerekmektedir.
[RETRACTED] ACV Super Slim Gummies UK (United Kingdom) – Shocking Reviews & Where to Buy? #1 v1
Authors: not provided acvsuperslimgunm
Published: March 2022

[RETRACTED]

Get ACV Super Slim Gummies @70% Discount: Click For Official Website
[RETRACTED] Americare CBD Gummies Get Healthy Sleep And Shocking Result Without Any Side Effects (Work Or Hoax) v1
Authors: CBD Gummies Americare
Published: March 2022

[RETRACTED]

Read This: "More Information From Knowledgeable Expertise of Americare CBD Gummies"
FLASH-seq UMI protocol v2
Authors: Picelli Simone , Hahaut Vincent
Published: March 2022

The single-cell RNA-sequencing (scRNA-seq) field has evolved tremendously since the first paper was published back in 2009. While the first methods analysed just a handful of cells, the throughput and performance rapidly increased over a very short timespan. However, it was not until the introduction of emulsion droplets methods, that the robust and reproducible analysis of thousands of cells became feasible. Despite generating data at a speed and a cost per cell that remains unmatched by full-length protocols like Smart-seq, scRNA-seq in droplets still comes with the drawback of addressing only the terminal portion of the transcripts, thus lacking the required sensitivity for comprehensively analyzing the transcriptome of individual cells. Building upon the existing Smart-seq2/3 workflows, we developed FLASH-seq (FS), a new full-length scRNA-seq method capable of detecting a significantly higher number of genes than both previous versions, requiring limited hands-on time and with a great potential for customization.
[RETRACTED] Aktiv Formulations Keto BHB - FDA-Approved Weightloss Diet Pills Aren't A Magic Pill For WeightLoss v1
Authors: Keto BHB Aktiv
Published: March 2022

[RETRACTED]

Aktiv Formulations Keto BHB - FDA-Approved Weightloss Diet Pills Aren't A Magic Pill For WeightLoss
[RETRACTED] Smilz CBD Gummies 100% Pure And Safe Really Work Update 2022 v1
Authors: not provided https://dietcbdmart.com/OrderSmilzCBDGummies
Published: March 2022

[RETRACTED]

Smilz CBD Gummies
[RETRACTED] Botanical Farms CBD Gummies Shark tank - Customer Reviews 2022 v1
Authors: not provided botanicalfarmssharks
Published: March 2022

[RETRACTED]

Botanical Farms CBD Gummies Shark tank - Customer Reviews 2022
FLASH-seq Low-Amplification protocol v2
Authors: Picelli Simone , Hahaut Vincent
Published: March 2022

Building upon the existing Smart-seq2/3 workflows, we developed FLASH-seq (FS), a new full-length scRNA-seq method capable of detecting a significantly higher number of genes than both previous versions, requiring limited hands-on time and with a great potential for customization. FLASH-seq Low-Amplification (FS-LA), represents FS quickest iteration, generating sequencing-ready libraries in 4.5 hours by removing intermediate cleanups and QC steps and without sacrificing performance. FS-LA is the best choice when a large number of plates need to be processed in parallel.