bluuebunny/crossref_metadata_2025 huggingface dataset:
La formación en derechos humanos y desarrollo sostenible de los docentes de educación primaria de la Ciudad de Buenos Aires
Authors: Vogelfanger Alan
Published: February 2022

La adecuada preparación de maestros y profesores es fundamental para cumplir con el ODS4. Este artículo busca analizar la inserción curricular de contenidos de derechos humanos y desarrollo sostenible en los profesorados de formación docente de educación primaria de la Ciudad de Buenos Aires. Para eso, se indagó en los tres documentos clave que determinan los contenidos de la carrera: los Lineamientos Curriculares Nacionales para la Formación Docente Inicial, el Diseño Curricular Jurisdiccional elaborado por el Ministerio de Educación de la Ciudad de Buenos Aires, y el Plan Curricular Institucional desarrollado por los institutos públicos de formación docente. Se destacaron los contenidos relevantes sobre derechos humanos o desarrollo sostenible y se establecieron indicadores temáticos para facilitar la sistematización y categorización de estos contenidos. Como resultado, si bien aparecen elementos relacionados con derechos humanos y desarrollo sostenible, sobre todo temas de diversidad, igualdad y no discriminación, no hay una perspectiva de derechos explícita. Además, la transversalidad de los contenidos permanece como un desafío. Asimismo, se concluye que la educación en derechos humanos y desarrollo sostenible necesitará trabajar en conjunto con otras disciplinas y otros ámbitos, por fuera de la educación y el derecho, para alcanzar sus nobles y ambiciosos objetivos.
El estrés laboral en el profesorado de las Ciencias Médicas de la Universidad Central del Ecuador. 2020. Del conocimiento del profesorado a defender su derecho a una formación integral y una vida digna
Authors: Salazar Manosalvas Fernando Marcelo , Paredes Jiménez Yolanda , Rosero Quintana Mercy , Estrella Cahueñas Ramiro , Jácome Espinoza Goretti
Published: February 2022

El profesorado universitario, personaje poco conocido científicamente, que produce resultados válidos para la promoción de los educandos, sin un explícito proceso de trabajo, como fuente de productividad y desgaste en su quehacer. Reivindicar los derechos humanos del profesorado es un rubro que debe venir aparejado de un conocimiento de su papel, para mejorar su oferta laboral y establecer los riesgos de morbilidad de los que puede ser objeto. El profesorado universitario de las Ciencias Médicas construye el perfil de salida de médicos, enfermeras, obstetrices, laboratoristas y radiólogos. El marco institucional, la gestión académica, el modelo de gestión y de aprendizaje están atravesados por modelos y relaciones jerárquicas verticales, siendo fuentes primarias de estrés laboral docente. La pregunta fue: ¿El estrés laboral de los docentes universitarios de la Facultad de Ciencias Médicas de la Universidad Central del Ecuador, dependió de la supervisión, de la valoración del trabajo, de las carencias, de la relación con los estudiantes, de las mejoras y la cooperación institucional? La experiencia educativa levantó información de 138 profesores (6% sexo femenino) entre 2019 y 2020. El instrumento utilizado fue la “Escala de Fuentes de Estrés en Profesores Universitarios” de la Universidad Huelva España, con adaptaciones de lenguaje del diseño original. Las variables fueron descritas para conocer la prevalencia y las fuentes de estrés. Se manejaron las variables como semicuantitativas, mediante el uso de sumatorias por escala y promedios, se calcularon intervalos de confianza al 95% y correlaciones simples, para establecer las fuentes de estrés. Los resultados dieron una prevalencia del 44.6% de estrés general, donde el estrés preocupante alcanzó el máximo nivel en todos los enunciados del estudio, la gran mayoría relacionados con las características jerárquicas de la organización educativa, la relación jerárquica del proceso de trabajo y la implementación de cambios inconsultos.
Femtosecond fiber oscillator based on a 3×3-coupler-NALM: numerical model and realizations at 1 and 2 µm
Authors: Graf Florian , Scelle Raphael , Diekamp Holger , Budnicki Aleksander , Dekorsy Thomas
Published: February 2022

In this article, we present robust passively mode-locked femtosecond lasers operating at 1030 and approximately 2000 nm, respectively. The all-fiber, all-polarization-maintaining (PM) lasers are mode-locked by a nonlinear amplifying loop mirror (NALM) which is attached to the cavity by a 3×3-coupler. The NALM is phase-biased by the coupler, enabling turn-key operation of the oscillator. Femtosecond pulse generation is demonstrated using Ytterbium and Thulium doped active fibers. Depending on the wavelength and the installed dispersive elements, pulse formation can be aided by a range of attractors including self-similar pulse evolution, soliton, or dispersion-managed soliton formation.
Angular dependence of the transverse Raman scattering in KDP and DKDP in geometries suitable for beam polarization control
Authors: Kosc T. Z. , Huang H. , Kessler T. J. , Demos S. G.
Published: February 2022

The angular dependance of the transverse Raman scattering in potassium dihydrogen phosphate (KDP) and its deuterated analogue (DKDP) for the entire range of crystal configurations suitable for laser beam polarization control has been investigated via experimental and modeling tools. This work was made possible by simultaneously rotating a spherical sample and the pump polarization to effectively measure the angular dependance of the transverse Raman signal in 360°. This novel method, which is applicable for the investigation of the Raman scattering in optically anisotropic materials, demonstrates that the spontaneous Raman scattering signal exhibits strong angular dependence that is modulated by depolarization and polarization rotation effects generated as the Raman signal traverses the material due to its birefringence. The results show that the total signal generated by the pump beam is the sum of the signals generated by the two components that have polarization parallel and orthogonal to the optic axis. The peak signal intensity, which is of importance for high-power laser applications, depends on the orientation of the optic axis and can vary by a factor of about 2. The excellent agreement between experimental data and modeling results validates the associated models and enables one to consider optimal crystal cut designs for specific applications.
Compact terahertz birefringent gratings for dispersion compensation
Authors: Ali Khan Muhammad Talal , Li Haisu , Liu Yajing , Peng Gang-Ding , Atakaramians Shaghik
Published: February 2022

Terahertz radiation as an upcoming carrier frequency for next-generation wireless communication systems has great potential to enable ultra-high-capacity transmissions with several tens of gigahertz bandwidths. Nevertheless, dispersion is one of the main impairments in achieving a higher bit rate. Here, we experimentally demonstrate a compact terahertz dispersion compensator based on subwavelength gratings. The gratings are fabricated from the low-loss cyclic olefin copolymer exploiting micro-machining fabrication techniques. With the strong index modulation introduced in the subwavelength grating, the high negative group velocity dispersion of -188 (-88) ps/mm/THz is achieved at 0.15 THz for x-polarization (y-polarization), i.e., 7.5 times increase compared to the state-of-the-art reported to date for terahertz. Such high negative dispersion is realized in a grating of 43 mm length. The asymmetric cross-section and periodic-structural modulation along propagation direction lead to considerable birefringence that maintains and filters two orthogonal polarization states, respectively. These polymer-based birefringent gratings can be integrated into terahertz communication systems for dispersion compensation of both long-haul wireless links and waveguide-based interconnect links.
Effects of electron transport layer thickness on light extraction in corrugated OLEDs
Authors: Lin Bo-Yen , Li Yi-Ru , Chen Chia-Hsuan , Hsu Hao-Chun , Wei Mao-Kuo , Lee Jiun-Haw , Chiu Tien-Lung
Published: February 2022

This study reported the effects of electron transport layer (ETL) thickness on light extraction in corrugated organic light-emitting diodes (OLEDs) and each layer in OLEDs exhibited a periodical corrugated structure, which was determined by depositing thin films on a glass substrate with a nanoimprinted blazed grating structure. The insight is that light extraction in corrugated OLEDs significantly depends on the ETL thickness. Varying the ETL thickness changed the distribution of carrier recombination and led to exciton formation and optical interference, thereby resulting in different attribution of optical loss modes in OLEDs, which increased or even decreased light extraction and device efficiency. Trapped light extraction from the surface plasmon polariton (SPP) and waveguide (WG) modes was identified by splitting the light into transverse electric and transverse magnetic emissions. Thus, the contributions from the individual SPP and WG modes to the external quantum efficiency (EQE) were distinctly clarified by comparing the experimental results with the theoretical calculations. At the ETL thickness of 115 nm, the corrugated OLED exhibited a significantly enhanced (1.83-fold) EQE compared to the planar one due to the effective extraction of trapped light from the SPP and WG modes. The EQE was enhanced by 0.5%, wherein 0.39% came from the WG mode and 0.11% came from the SPP mode.
Deep learning Mueller matrix feature retrieval from a snapshot Stokes image
Authors: Si Lu , Huang Tongyu , Wang Xingjian , Yao Yue , Dong Yang , Liao Ran , Ma Hui
Published: February 2022

A Mueller matrix (MM) provides a comprehensive representation of the polarization properties of a complex medium and encodes very rich information on the macro- and microstructural features. Histopathological features can be characterized by polarization parameters derived from MM. However, a MM must be derived from at least four Stokes vectors corresponding to four different incident polarization states, which makes the qualities of MM very sensitive to small changes in the imaging system or the sample during the exposures, such as fluctuations in illumination light and co-registration of polarization component images. In this work, we use a deep learning approach to retrieve MM-based specific polarimetry basis parameters (PBPs) from a snapshot Stokes vector. This data post-processing method is capable of eliminating errors introduced by multi-exposure, as well as reducing the imaging time and hardware complexity. It shows the potential for accurate MM imaging on dynamic samples or in unstable environments. The translation model is designed based on generative adversarial network with customized loss functions. The effectiveness of the approach was demonstrated on liver and breast tissue slices and blood smears. Finally, we evaluated the performance by quantitative similarity assessment methods in both pixel and image levels.
Growth hormone deficiency in childhood brain tumors and acute lymphoblastic leukemia survivors
Authors: Pavlova M. G. , Tselovalnikova T. Y. , Yudina A. E. , Golounina O. O. , Zilov A. V. , Mazerkina N. A. , Zheludkova O. G. , Fadeev V. V.
Published: February 2022

Thanks to modern treatment protocols, childhood cancer survivors (CCS) are a very fast-growing population nowadays. Cancer therapy inevitably leads to different late adverse effects, where endocrine disorders are highly prevalent, including growth hormone deficiency (GHD) which is the most common endocrine outcome after cancer treatment in childhood and contributes to impaired growth. Short stature is a big issue, which leads to problems in psychological and social adaptation of patients and reduces their quality of life. Impact of GH treatment on various physiological processes and global outcome of CCS is of great interest. Several studies have demonstrated an influence of GH and IGF-1 on the development/tumour growth, cell proliferation. In this regard, the issue of increasing the risk of cancer recurrence and/or the development of secondary neoplasms in CCS, causes a lot of controversy and is the subject of continuous evaluation. In this review, we went through the available data on the prevalence and pathogenesis of GHD following chemo- and radiotherapy, in particular after treatment of brain tumors and acute lymphoblastic leukaemia in childhood. In addition, here we discuss the existing problems in the diagnosis of GHD, the safety of GH replacement therapy, as well as the treatment algorithm of the GHD in adults.
Draft of Russian Clinical Practice Guidelines «Male hypogonadism»
Authors: Dedov I. I. , Mokrysheva N. G. , Melnichenko G. A. , Rozhivanov R. V. , Kamalov A. A. , Mkrtumyan А. M. , Khalimov Yu. Sh. , Vorokhobina N. V.
Published: February 2022

Hypogonadism in males, defined as a decrease in serum testosterone levels in combination with characteristic symptoms and/or signs, can be observed with pathological changes in the testicles and/or pituitary gland, such as Klinefelter’s syndrome, Kallman’s syndrome, as well as in men with metabolic (obesity, diabetes mellitus) or iatrogenic disorders leading to a decrease in androgen production. The draft guidelines cover the extensive range of pathologies that cause hypogonadism development (testosterone deficiency) and focus on its clinical variants, which make up the majority of cases of hypogonadism observed in men. The authors and reviewers are an interdisciplinary group of experts, consisting of endocrinologists, andrologists, urologists - members of the «Russian Association of Endocrinologists» and «Men’s and Reproductive Health» public organizations.

Clinical guidelines contain the most reliable evidence available to experts at the time of writing. Nevertheless, recommendations cannot replace clinical experience, and deciding on the start of treatment, choosing a method of therapy, or a drug should always consider the individual characteristics of a specific patient.
EDUCAÇÃO EM SAÚDE: PONDERAÇÕES DE UM ITINERÁRIO FREIRIANO
Authors: Vieira Isabel Cristina Bohn , Ribeiro Eduardo Augusto Werneck , Heidemann Ivonete Teresinha Schülter Buss
Published: February 2022

A presente pesquisa tem como objeto de estudo a investigação temática “Educação em Saúde”, a partir da metodologia de Círculo de Cultura de Freire, abarcando os profissionais da Saúde e da Educação Básica de Ensino. O objetivo da proposta consistiu em desvelar mediações que condicionem a dialogicidade intersetorial e a aprendizagem significativa acerca de respostas que levem a intervenções promotoras de saúde em territórios de ação desses profissionais. Consolidando a pesquisa, o trabalho foi dividido em três momentos de dialogicidade e reflexão: Temas Geradores, Codificação/ Descodificação e Desvelamento Crítico. Os resultados obtidos apontaram que, adentrar a intersetorialidade com a temática em questão permitiu promover a elucidação de conceitos até então desconhecidos entre os participantes, bem como sua (re)significação frente ao processo dialógico. Também, sinalizaram que recursos midiáticos aplicados em pesquisa participativa, são doravante contributivos. Salienta-se que, buscar a integração das diferentes áreas de conhecimento com vistas a autonomia no conjunto das ciências, implica reconhecer o território como forma indissociável a reprodução do trabalho e da dimensão histórica dos grupos socais. De fato, esta etapa futura mostra-se como um desafio a ser dirimido.
ASSOCIAÇÃO ENTRE VARIÁVEIS SOCIOECONÔMICAS E A OCORRÊNCIA DE DENGUE NO ESTADO DE GOIÁS: UMA ANÁLISE A PARTIR DE ALGORITMOS DE MACHINE LEARNING
Authors: Gioia Thamy Barbara , Barros Juliana Ramalho
Published: February 2022

A dengue é considerada uma das doenças com índices mais expressivos no Brasil. O crescente aumento nas taxas observadas afeta diretamente os serviços públicos de saúde de forma que avaliar as condições ambientais e sociais em áreas com altos índices da doença pode auxiliar na elaboração de diagnósticos e ações em saúde. Nesse sentido, o objetivo deste trabalho foi identificar variáveis socioeconômicas mais importantes para a predição das taxas de prevalência de dengue nos municípios do estado de Goiás. A avaliação foi realizada com base em 38 variáveis socioeconômicas obtidas no banco de dados do Instituto Brasileiro de Geografia e Estatística - IBGE, da Fundação João Pinheiro - FJP e a partir do cálculo das taxas de prevalência de dengue baseado nos dados disponíveis no Sistema de Informação de Agravos de Notificação - SINAN para os períodos de 2001-2009 e 2010-2018. A modelagem foi realizada a partir da avaliação de três algoritmos de machine learning: Random Forest, XGBoost e KNN. Os resultados indicaram que as variáveis mais importantes apresentaram relação inversa às condições de baixa renda, analfabetismo e deficiência em serviços de saneamento básico.
L’ordre des Évangiles : une nouvelle mise à jour
Authors: Bogaert Pierre-Maurice
Published: February 2022

L’ordre usuel des Évangiles s’est généralisé progressivement depuis la deuxième moitié du IVe siècle, suite au choix des grands scriptoria grecs (Alexandrie, Césarée, Antioche, Constantinople) ; il s’est introduit dans le monde latin par la traduction de Jérôme à la fin du IVe siècle. Après Theodor Zahn (1892), Bruce M. Metzger (1997) et une première mise à jour (1999), il est possible aujourd’hui de compléter substantiellement la liste des témoins de treize ordres différents attestés par des manuscrits des Évangiles, par des commentaires des Évangiles, par les listes des livres canoniques, ou encore par des mentions occasionnelles. L’histoire la plus ancienne est conditionnée par les progrès dans la fabrication du codex, permettant la copie d’un, puis de deux, de trois, de quatre Évangiles dans un même codex, et finalement de toute la Bible dans d’épais pandectes. Des considérations chronologiques et autres ont pu guider le choix de l’ordre. La multiplicité des ordres est particulièrement sensible dans le domaine latin, largement tributaire de manuscrits grecs moins bien conservés ou perdus ; elle est aussi perceptible dans d’autres versions anciennes (syriaque, copte, arménien, gotique).
Antibacterial Activities of Micromonospora sp. 2310 Isolated from Marine Sediment, Baru Island, West Kalimantan
Authors: Nofiani Risa , Ardiningsih Puji
Published: February 2022

The increase in cases of antibiotic resistance and the discoveries cessation of new classes of antibiotics encourages the exploration of various microorganism sources from unique environments to produce antimicrobial compounds. This study aimed to characterize actinobacteria isolated from marine sediment and evaluate the best medium and incubation time for its antibacterial activities. The sediment sample collected from Buru Island, West Kalimantan, was isolated actinobacteria and characterized based on morphological, biochemical, and molecular (16S rRNA gene) approaches. Antibacterial activities were tested using the well-diffusion methods. Twelve suspected colonies were successfully purified. Isolate 2310, which showed a different morphology colony, was close to Micromonospora based on morphological, biochemical, and 16S rRNA gene analysis and called Micromonospora sp. 2310. Extract isolate 2310 prepared from AM medium showed the best medium for antibacterial activities compared with the other media due to activity against 5 of 6 bacteria, namely Staphylococcus aureus ATCC 12600, Bacillus subtilis ATCC 6051, Salmonella enterica ATCC 14028, Escherichia coli ATCC 11775, Pseudomonas aeruginosa ATCC 9721 except Mycobacterium smegmatis ATCC 14468. Therefore, Micromonospora sp. 2310 could be considered a great potential antibacterial producer.
Humic Acid-Modified Magnetite Nanoparticles for Removing [AuCl4]− in Aqueous Solutions
Authors: Koesnarpadi Soerja Koesnarpadi , Widodo Nanang Tri , Maulana Acmad Maulana
Published: February 2022

Humic acid-modified magnetite nanoparticle (MnP-HA) has been synthesized using the co-precipitation method and applied for removal of [AuCl4]−. Modifying of MnP-HA was prepared with the mass ratio of MnP-HA=10:1 and 10:3. The HA was extracted from peat soil of Sambutan Village, East Kalimantan, Indonesia, by the recommended procedure of the International Humic Substances Society (IHSS). The saturation magnetization of MnP-HA was decreased compared to unmodified MnP. The interaction between MnP and HA was occurred due to the chemical bond between Fe from MnP with the carboxylic group from HA. The coating HA on the surface of MnP unchanged the formation of the crystal structure of MnP and increased the particle size. The optimum removal of [AuCl4]− on MnP and MnP-HA materials was optimum at pH 3.0. The Langmuir isotherm model with sorption capacity was 0.23, 4.85, and 4.65 mol g–1 for MnP, MnP-HA=10:1, and 10:3, respectively. Using a pseudo-second-order equation, the degradation of the kinetics model of [AuCl4]− on MnP, MnP-HA=10:1 and 10:3 with adsorption rate constant (k) were 0.02, 0.07, and 0.06 g.mol min–1.
Digital accreditations in MOOC-based training on sustainability: Factors that influence terminal efficiency
Authors: Ramirez Montoya Maria Soledad , Martínez-Pérez Sandra , Rodriguez-Abitia Guillermo , Lopez-Caudana Edgar
Published: February 2022

Digital certificates in massive open online course (MOOC) learning experiences provide alternative credentials linked to lifelong learning. The Bi-National Laboratory on Smart Sustainable Energy Management and Technology Training provided the context for this research. This project was undertaken by Mexican and United States universities, businesses and governmental organisations, having granted 17,776 certifications in sustainability and 10,705 labour competence certificates. The research focused on analysing the factors that promote digital credentials, from the point of view of participant and platform characteristics, in the framework of MOOCs in energy sustainability, through the MexicoX and edX platforms. Using the ex post facto method, two validated instruments were applied to analyse motivation and self-regulation processes. A total of 4,002 useful responses were gathered from participants in 35 MOOC courses. The results account for six determinant factors for digital accreditation: perceived usefulness, self-efficacy, knowledge domain and expertise, group work disposition, achievement drive, and performance strategic thinking. We highlight implications for research on educational innovation and for educational practice in MOOCs. These data may be of interest to academics, researchers and decision-makers interested in training through distance environments.
Implications for practice or policy:

Digital certifications in MOOCs are motivation for participants to successfully finish their courses, and this can be leveraged for education and research.
Course leaders need to consider that effective design and implementation of new models for MOOCs may help improve terminal efficiency.
The potential perceived benefits from training on professional performance have the greatest influence on the terminal efficiency of MOOC participants.
Analysis of differentially expressed genes and signaling pathways involved in atherosclerosis and chronic obstructive pulmonary disease
Authors: Kotlyarov Stanislav
Published: February 2022

Atherosclerosis is an important medical and social problem, and the keys to solving this problem are still largely unknown. A common situation in real clinical practice is the comorbid course of atherosclerosis with chronic obstructive pulmonary disease (COPD). Diseases share some common risk factors and may be closely linked pathogenetically. Methods: Bioinformatics analysis of datasets from Gene Expression Omnibus (GEO) was performed to examine the gene ontology (GO) of common differentially expressed genes (DEGs) in COPD and peripheral arterial atherosclerosis. DEGs were identified using the limma R package with the settingsp< 0.05, corrected using the Benjamini & Hochberg algorithm and ǀlog 2FCǀ > 1.0. The GO, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment, and the protein–protein interaction (PPI) network analysis were performed with the detected DEGs. Results: The biological processes and signaling pathways involving common DEGs from airway epithelial datasets in COPD and tissue in peripheral atherosclerosis were identified. A total of 15 DEGs were identified, comprising 12 upregulated and 3 downregulated DEGs. The GO enrichment analysis demonstrated that the upregulated hub genes were mainly involved in the inflammatory response, reactive oxygen species metabolic process, cell adhesion, lipid metabolic process, regulation of angiogenesis, icosanoid biosynthetic process, and cellular response to a chemical stimulus. The KEGG pathway enrichment analysis demonstrated that the common pathways were Toll-like receptor signaling pathway, NF-kappa B signaling pathway, lipid and atherosclerosis, and cytokine–cytokine receptor interaction. Conclusions: Biological processes and signaling pathways associated with the immune response may link the development and progression of COPD and atherosclerosis.
Synthesis of alkaline-earth Zintl phosphidesMZn2P2(M= Ca, Sr, Ba) from Sn solutions
Authors: Katsube Ryoji , Nose Yoshitaro
Published: February 2022

Exploration of suitable partner materials (so-called buffer layer or n-type emitter) for each light-absorbing material is essential to practicalize various emerging photovoltaic devices. Motivated by our recent discovery of a partner material, Mg(MgxZn1−x)2P2, in Mg/Zn3P2solar cells, the related series of materialsMZn2P2(M= Ca, Sr, Ba) is of interest to the application in pnictide-based solar cells. In this study, we synthesize these materials to evaluate the optoelectronic properties concerning photovoltaic applications. To deal with the difficulties of the high vapor pressure and reactivity of the constituent elements, we utilized Sn as a solvent to reduce their activities during heat treatments. Powders that are mainly composed ofMZn2P2were obtained by crushing the samples after solution growth, although single-phase crystals ofMZn2P2could not be obtained in this study. The optical bandgap and the ionization potential of eachMZn2P2were evaluated through the diffuse reflectance and the photoelectron yield spectroscopy measurements of the powder. As a result, we found that CaZn2P2would be a promising partner material in photovoltaics based on Zn3P2and ZnSnP2.
Prenominal possessives in Yiddish: mayn khaver versus mayner a khaver
Authors: Roehrs Dorian
Published: February 2022

This article provides a systematic comparison and detailed analysis of two prenominal possessive constructions in Yiddish, the familiar mayn khaver ‘my friend’ and the less well-known mayner a khaver ‘a friend of mine.’ It is demonstrated that the first construction is definite and that the second construction is indefinite. It is argued that the possessor in the first construction is in Spec,DP. Making the standard assumption that (in-)definiteness is determined in the DP-level, this construction straightforwardly adheres to Definiteness Spread analyzed as Spec-head agreement. As to the second construction, it is proposed that the possessor is embedded in a second nominal and that nominal is in a position higher than the DP-level. Discussing four different analyses, it is concluded that the possessor of the second construction is most likely adjoined to the DP-level. As such, the possessor plays no role in Definiteness Spread, and the indefinite article brings about indefiniteness. The investigation is guided by relating the second construction to two other intriguing cases: eyner a khaver ‘a certain friend’ and epes a khaver ‘some friend.’ It is shown that predeterminer elements (mayner, eyner, epes) can be stacked and switch positions. This supports an analysis of adjunction. More generally, the data provide more evidence that there are structural positions above the DP proper.
Exponential stability of Timoshenko system in thermoelasticity of second sound with a memory and distributed delay term
Authors: Moumen Abdelkader , Ouchenane Djamel , Choucha Abdelbaki , Zennir Khaled , Zubair Sulima A.
Published: February 2022

This article concerns linear one-dimensional thermoelastic Timoshenko system with memory and distributed delay terms where the Cattaneo law governs the heat flux

q

(

x
,
t

)

q\left(x,t)

. We proved an exponential stability result by using the energy method combined with Lyapunov functional.
Ground state sign-changing solutions for a class of quasilinear Schrödinger equations
Authors: Zhu Wenjie , Chen Chunfang
Published: February 2022

In this paper, we consider the following quasilinear Schrödinger equation:

−
Δ
u
+
V

(

x

)

u
+

κ

2

Δ

(

u

2

)

u
=
K

(

x

)

f

(

u

)

,

x
∈

R

N

,

-\Delta u+V\left(x)u+\frac{\kappa }{2}\Delta \left({u}^{2})u=K\left(x)f\left(u),\hspace{1.0em}x\in {{\mathbb{R}}}^{N},

where

N
≥
3

N\ge 3

,

κ
>
0

\kappa \gt 0

,

f
∈
C

(

R
,
R

)

f\in {\mathcal{C}}\left({\mathbb{R}},{\mathbb{R}})

,

V

(

x

)

V\left(x)

and

K

(

x

)

K\left(x)

are positive continuous potentials. Under given conditions, by changing variables and truncation argument, the energy of ground state solutions of the Nehari type is achieved. We also prove the existence of ground state sign-changing solutions for the aforementioned equation. Our results are the generalization work of M. B. Yang, C. A. Santos, and J. Z. Zhou, Least action nodal solution for a quasilinear defocusing Schrödinger equation with supercritical nonlinearity, Commun. Contemp. Math. 21 (2019), no. 5, 1850026, https://doi.org/10.1142/S0219199718500268.
Polyethyleneimine-impregnated activated carbon nanofiber composited graphene-derived rice husk char for efficient post-combustion CO2capture
Authors: Che Othman Faten Ermala , Yusof Norhaniza , Petrů Michael , Md Nordin Nik Abdul Hadi , Hamid Muhammad Faris , Ismail Ahmad Fauzi , Rushdan Ahmad Ilyas , Abu Hassan Shukur
Published: February 2022

This study presents the fabrication of polyethyleneimine (PEI)–graphene-derived rice husk char (GRHC)/activated carbon nanofiber (ACNF) compositesviaelectrospinning and physical activation processes and its adsorption performance toward CO2. This study was performed by varying several parameters, including the loading of graphene, impregnated and nonimpregnated with amine, and tested on different adsorption pressures and temperatures. The resultant ACNF composite with 1% of GRHC shows smaller average fiber diameter (238 ± 79.97 nm) with specific surface area (SBET) of 597 m2/g, andVmicroof 0.2606 cm3/g, superior to pristine ACNFs (202 m2/g and 0.0976 cm3/g, respectively). ACNF/GRHC0.01 exhibited CO2uptakes of 142 cm3/g at atmospheric pressure and 25°C, significantly higher than that of pristine ACNF’s 69 cm3/g. The GRHC/ACNF0.01 was then impregnated with PEI and further achieved impressive increment in CO2uptake to 191 cm3/g. Notably, the adsorption performance of CO2is directly proportional to the pressure increment; however, it is inversely proportional with the increased temperature. Interestingly, both amine-impregnated and nonimpregnated GRHC/ACNFs fitted the pseudo first-order kinetic model (physisorption) at 1 bar; however, best fitted the pseudo second-order kinetic model (chemisorption) at 15 bar. Both GRHC/ACNF and PEI-GRHC/ACNF samples obeyed the Langmuir adsorption isotherm model, which indicates monolayer adsorption. At the end of this study, PEI-GRHC/ACNFs with excellent CO2adsorption performance were successfully fabricated.
Recent developments in C–C bond formation catalyzed by solid supported palladium: a greener perspective
Authors: Saha Debasree , Mukhopadhyay Chhanda
Published: February 2022

The world today is struggling to achieve sustainable means for synthetic processes. Standing at this juncture, we need to develop and implement greener and reusable approaches towards organic synthesis. Transition metals especially palladium is a wonder element which has the ability to catalyze a range of useful organic syntheses. However, the expensive nature of palladium has urged synthetic chemists to search for protocols where a single palladium source may be used repeatedly in successive reactions, thus making the overall process cost effective. Palladium when anchored to solid supports leads to catalytic systems which can be easily separated from the organic phase post reaction and can be reused in successive cycles. Not only does this make the process economically viable but also ensures that no metal contaminates the purity of the final organic product. In this review we will highlight the recent developments in C–C bond formation (which is by far the most fundamental mode of bond making in organic synthesis) via the use of solid supported palladium catalytic systems. We will use this opportunity to illustrate the synthetic processes from a greener sustainable point of view which we feel is of utmost relevance in the current scientific scenario.
Listening to Beethoven’s Ninth as communicational production
Authors: Lucas Cássio de Borba
Published: February 2022

This paper (1) discusses the communicability of musical listening, (2) proposes a semanalytical perspective to approach it in terms of communicational production, and (3) summarizes an analysis of the production of musical listenings in the case of Beethoven’s Ninth Symphony. Instead of assuming that verbal talk on music banalizes listening (Barthes), or that musical arrangers are the privileged authorities when it comes to transmitting a personal listening (Szendy), our suggestion is that communicationproduces – in the post-structuralist sense of the word – musical listenings even when it seems to simply try and account for it. In a transmissive, “phenotextual” (Kristeva) comprehension, listening may be understood as a phenomenological, receptive act that pre-exists its communication. Instead, our communicational research on musical listening turns to the listening-accounts in order to grasp the “listenabilities” as they emerge (are permitted or interdicted) within specific listening-territories that “genotextually” produce their regulations and habits (modes of listening). This semiotic production is methodologically investigated, here, in terms of interpretant signs, especially as Normal Interpretants (Peirce), within a particular listening-territory (Brazilian newspapers’ repercussion around the Ninth Symphony’s 1918 debut in Rio). Three remarks are made on the genotextual operations that produce “insufficiency,” “monumentality,” and “distinção”as listening normalities.
Display of understanding in a second story: second teller’s reenactments and reuses of the prior teller’s resources
Authors: Yasui Eiko
Published: February 2022

In everyday conversations, after a story of an event or one’s experience is told, the recipient often tells a second story, similar to the previous one in terms of content and structure. A second story exhibits, rather than simply claims, its teller’s understanding of a prior story. While stories are often told with reenactments of an event, this study specifically examines the cases in which second tellers produce reenactments similar to that presented by the prior teller through reusing similar verbal and bodily conduct produced by the prior teller. Drawing on conversation analysis using a total of approximately 16 h of Japanese videotaped everyday conversation, this study explores how reenactments of similar moments contribute to the display of understanding and what they further accomplish. The findings reveal that the second teller’s reenactments similar to the one presented by the prior teller exhibit the understanding of not only the contents, but also the main focal point of the prior story while demonstrating different stances towards it. This study contributes to the body of research on the embodied display of understanding by showing how performing an operation on already shared verbal and bodily resources embedded within the ongoing sequence can exhibit multiple levels of understanding.
The Assessment of the Buildability and Interlayer Adhesion Strength of 3D-Printed Mortar
Authors: Verian Kho P. , Ashcroft Jarron , Ziemlaski Jim , Brodesser Tim , Ladouceur Jonathan , Carli Matthew D. , Bright Randall P. , Maandi Eerik
Published: February 2022

In recent years, 3D printing, also known as additive manufacturing (AM), has been gaining popularity in the field of construction. The application of 3D printing in construction has allowed for automation to reach an industry currently facing shortages in labor and natural resources, increasing costs, and increasing demand for sustainability and affordable housing in all markets. However, one of the primary challenges in upscaling current 3D printing technology in construction is the ambiguity in its testing procedures due both to the novel methods of applications and unique material properties. To date, only a few official testing standards for 3D construction printing are available (i.e., ICC-ES AC509, UL 3401). These standards, however, are still at their early stages and have yet widely adopted. This study focuses on the assessment of the material properties at both fresh (plastic) and hardened stages of a commercially available 3D-printed mortar. This manuscript also presents the development of new test methods to assess the interlayer adhesion strength of 3D-printed mortar and the buildability of the material. The interlayer adhesion strength in 3D-printed mortar was assessed by testing printed specimens for tensile strength perpendicular to the printing direction. The buildability of the mortar was defined by its ability to maintain its shape and integrity during the printing process without completely collapsing or showing signs of significant deformation. For this purpose, a buildability test was developed by printing and recording the maximum achievable printing height of a specific structure under specific printing parameters, such as the shape and dimension of the structure and filament, printing speed, extrusion rate, water level, and printing environment. These printing parameters were specifically defined and controlled to maintain the consistency and repeatability of the test. The buildability test results indicate that a faster vertical building rate leads to a lower maximum height for the given material and vice versa.
CHARACTERIZING SOFTWARE QUALITY ASSURANCE PRACTICES IN KENYA
Authors:   Department of Computer Science, Daystar University, PO Box 44400-00100 Nairobi, Kenya, Wambua Anthony , Maake Benard M. ,   Department of Computing Sciences, Kisii University, PO Box 408-40200 Kisii, Kenya
Published: February 2022

Given the increased reliance on technology, Software Quality Assurance(SQA) has become a vital area in Software Engineering (SE). SQA practices require training, cost and often take more time than actual code writing. Owing to these requirements, software developers often ignore or partly implement SQA practices, leading to potentially poor quality software development. The goal of the study is to characterise SQA practices of software developers in Kenya. As such, quantitative empirical research was conducted. Seventy-seven (N=77) completed questionnaires were received and analysed to yield the required insights. The analysis of the findings indicates compliance with SQA practices. However, the research unearths concerns such as failure to comply with Software Development Life Cycle (SDLC) models as having the potential to lower the quality of software products. The assessment found that Unit testing was the most common type of software test. Based on the findings and literature, recommendations are made. The need to improve software engineering education and invest in software testing is underscored. The results can be generalised to most developing countries and used by software developers and trainers to identify areas in SQA that need strengthening.
PROBLEM BASED LEARNING (PBL) PADA TOPIK STRUKTUR ATOM : KEAKTIFAN, KREATIVITAS DAN PRESTASI BELAJAR SISWA
Authors: Langitasari Indah , Rogayah Titi , Solfarina Solfarina
Published: February 2022

Pembelajaran bermakna dalam kimia perlu memperhatikan karakter konten kimia dan peserta didik. Problem Based Learning (PBL) memberikan lingkungan belajar yang erat kaitannya dengan kehidupan sehari-hari sehingga dapat mendukung tercapainya pembelajaran Â kimia yang bermakna bagi peserta didik. Penelitian ini bertujuan untuk mendeskripsikan keaktifan, kreativitas dan prestasi belajar kimia siswa pada implementasi problem based learning (PBL) untuk topik struktur atom. Penelitian ini merupakan penelitian best practice yang dilakukan di kelas X MIPA disalah satu SMA di kota Serang. Penelitian ini menggunakan metode kuantitatif deskriptif. Instrumen penelitian terdiri dari lembar observasi keaktifan siswa, lembar penilaian proyek dan 30 soal tes struktur atom. Analisis data dilakukan dengan mengkonversi skor penilaian kedalam nilai persentase kelas dan selanjutnya dikategorisasikan. Hasil penelitian menunjukkan bahwa rata-rata 78% siswa aktif selama pembelajaran dan kreativitas siswa terukur dalam kategori tinggi dengan skor rata-rata 78. Implementasi PBL juga memberikan pengaruh pada peningkatan prestasi belajar kimia siswa yang lebih baik dibandingkan pembelajaran sebelumnya.
ANALISIS MISKONSEPSI MENGGUNAKAN TES DIAGNOSA THREE-TIER MULTIPLE CHOICE PADA MATERI STOIKIOMETRI
Authors: Lestari Etika Ayu , Harjito Harjito , Susilaningsih Endang , Wijayati Nanik
Published: February 2022

This study aims to analyze the profile of students' misconceptions on stoichiometric material and to find out the findings obtained from the misconception analysis. This research method is a mixed method with a sequential explanatory design. Quantitative data collection methods using test and questionnaire methods. Qualitative data method with interview method. The total misconception profile on stoichiometric material was 44.6%. The profile of misconceptions based on the achievement of the highest concept understanding indicator was 65%. The concepts that cause chemical misconceptions of stoichiometric competence in students include the basic laws of chemistry, molar mass, molar volume, number of particles, limiting reagents and empirical formulas. Factors that can cause misconceptions in students found by researchers are situations that are less conducive, lack of student interest in learning chemistry, learning methods that are not correct, lack of courage to ask questions, low student motivation.
Future Time Perspective and Its Influence on Life Satisfaction through Hope
Authors: Kunwijaya Indrajati , Puji Sugiharto Dwi Yuwono , Sunawan Sunawan
Published: February 2022

Life satisfaction refers to one’s assessment of life in general. Low life satisfaction leads to negative impacts to a person’s mental health condition. This study identified and analyzed the relationship between the future time perspective and life satisfaction through hope in 567 state high school students in Semarang City. Data were collected using the Satisfaction With Life Scale (SWLS), Synder Hope Scale (SHS) and Future Time Perspective Scale (FTPS). The results of the analysis showed that hope fully mediated the relationship between future time perspective and students’ life satisfaction. This study found that students with good future perspective were satisfied with life because they were able to make route in achieving their goals. The results of this study can be used as insights in counseling intervention and for further research.
The Effect of Students' Perceptions of Career Information Services on Students’ Career Decision Making Self-Efficacy
Authors: Haryati Umi , Purwanto Edy , Awalya Awalya
Published: February 2022

Lack of information related to education, position, or work that matches students' abilities is one of the obstacles that cause students unable to make appropriate career decisions. The purpose of this study was to empirically examine the effect of students' perceptions of career information services on career decision making self-efficacy. It involved 108 SMK students selected by quota random sampling technique. The data analysis technique used was simple linear regression analysis with the help of SPSS 24. The results showed that there was a significant relationship between students' perceptions of career information services on career decision making self-efficacy by 16% (β = 0.40, p < 0.01). The quality of good career information services will affect the self-efficacy of good career decision making.
The Relationship between Creative Thinking, Problem Solving Skills, and Self Efficacy with Work Readiness
Authors: Nihlatin Nisa Alis , Puji Sugiharto Dwi Yuwono , Awalya Awalya
Published: February 2022

Studentâ€™s work readiness is related to individual abilities such as creative thinking, problem solving skills, and self-efficacy. However, the readiness is sometimes not matched by the expected requirements from industrial world. Hence, this study strived to analyze the relationship between creative thinking, problem solving skills, and self-efficacy with the work readiness of Public Vocational High School students in Semarang City. Regarding sample, this study involved 372 students in 6 Public Vocational High School in Semarang City chosen using Cluster Random Sampling. The sample data were collected through the instruments of creative thinking scale, Problem Solving Inventory (PSI), General Self-Efficacy (GSE), and work readiness scale. The findings showed that; creative thinking, problem solving skills and self-efficacy had positive relationships with work readiness. In details, self-efficacy variable owned the strongest relationship among other variables. Thus, the higher the creative thinking, problem solving skills, and self-efficacy students have, the higher work readiness in facing the industrial world and the world of work would be.
The Effectiveness of Group Counseling with Sfbc And Mindfulness Training Group Approaches to Reduce the Technostress of Students Who Use Smartphone
Authors: Munir Ahmad , Sugiyo Sugiyo , Mulawarman Mulawarman
Published: February 2022

Smartphone presence in todayâ€™s era truly advantages students in both learning process and personal business. However, when there is no good time management of smartphone usage, students may experience technostress. Regarding this issue, this study strived to examine the effectiveness of group counseling with SFBC and mindfulness training group approaches to reduce the technostress of students who use smartphone. In its implementation, there were 14 students chosen using random assignment as the samples and divided into two groups with each group consisted of 7 students. For the method, this study used experimental method with randomized pretest-posttest comparison group design. Studentsâ€™ technostress data were collected using technostress scale and analyzed through Wilcoxon Sign Rank Test and Mann Whitney. It was found that: 1) the group counseling with SFBC approach successfully reduced the studentsâ€™ technostress in the SFBC experimental group. 2) Mindfulness training group made it to reduce the studentsâ€™ technostress in mindfulness training group experimental group. 3) the intervention in the SFCB experimental group appeared to be more effective to reduce the technostress of students who use smartphone compared to the mindfulness training group. Thus, it is recommended to apply the group counseling with SFBC approach to reduce the technostress of students who use smartphone.
Privatizaciones de empresas estatales en Costa Rica: ¿Cuánto podría aportar a reducir el déficit fiscal?
Authors: Espinoza Rodríguez Julio
Published: February 2022

El análisis de la literatura sobre privatizaciones lleva a conclusiones mixtas y contradictorias sobre sus efectos sobre la economía. Por tanto, cada estudio debe matizarse y adaptarse a cada realidad, para que su implementación en la práctica no tenga efectos negativos sobre la sociedad. Precisamente en el caso de Costa Rica algunos han vendido la idea que la venta de activos del estado soluciona gran parte -y algunos la solución- de la deuda del país y con ello, el déficit fiscal, lo cual no cierto, pues el impacto de las ventas es minúsculo y pareciera que los que lo proponen como la “pomada canaria”, o no hicieron los cálculos respectivos o se dejan llevar por enfoques ideológicos o simplemente un efecto imitación.