bluuebunny/crossref_metadata_2025 huggingface dataset:
Ground state solutions of nonlinear Schrödinger equations involving the fractional p-Laplacian and potential wells
Authors: Chen Yongpeng , Niu Miaomiao
Published: March 2022

The purpose of this paper is to investigate the ground state solutions for the following nonlinear Schrödinger equations involving the fractional p-Laplacian

(

−
Δ

)

p

s

u

(

x

)

+
λ
V

(

x

)

u

(

x

)

p
−
1

=
u

(

x

)

q
−
1

,

u

(

x

)

≥
0
,

x
∈

R

N

,

{\left(-\Delta )}_{p}^{s}u\left(x)+\lambda V\left(x)u{\left(x)}^{p-1}=u{\left(x)}^{q-1},\hspace{1em}u\left(x)\ge 0,\hspace{0.33em}x\in {{\mathbb{R}}}^{N},

where

λ
>
0

\lambda \gt 0

is a parameter,

1
<
p
<
q
<

N
p

N
−
s
p

1\lt p\lt q\lt \frac{Np}{N-sp}

,

N
≥
2

N\ge 2

, and

V

(

x

)

V\left(x)

is a real continuous function on

R

N

{{\mathbb{R}}}^{N}

. For

λ

\lambda

large enough, the existence of ground state solutions are obtained, and they localize near the potential well int

(

V

−
1

(

0

)

)

\left({V}^{-1}\left(0))

.
Crystal structure of 3-(difluoromethyl)-1-methyl-N-(4,11,11-trimethyl-1,2,3,4-tetrahydro-1,4-methanoacridin-9-yl)-1H-pyrazole-4-carboxamide monohydrate, C23H26F2N4O3
Authors: Zhong Liang , Wang Jiu-Long , Zhu Shuang-Shi , Chen Shang-Xing , Peng Da-Yong
Published: March 2022

C23H26F2N4O3, orthorhombic, P212121 (no. 19), a = 11.6524(10) Å, b = 11.9777(10) Å, c = 15.9058(13) Å, V = 2220.0(3) Å3, Z = 4, R

gt
(F) = 0.0305, wR

ref
(F
2) = 0.0751, T = 296(2) K.
Antibacterial nanomaterials: Upcoming hope to overcome antibiotic resistance crisis
Authors: Hochvaldová Lucie , Večeřová Renata , Kolář Milan , Prucek Robert , Kvítek Libor , Lapčík Lubomír , Panáček Aleš
Published: March 2022

When combined with nanomaterials, antibiotics show antibacterial activity against susceptible and resistant bacterial strains at significantly lower concentrations. Unfortunately, to date, no research study has examined the effect of the antibiotic mode of action and mechanism of bacterial resistance on the effectiveness of combined antibacterial treatment with nanomaterials. Therefore, in this review, we performed a thorough analysis and critical evaluation of previously published data related to the combined antibacterial effect of antibiotics with nanostructured materials with a targeted focus on relationships between antibiotic’s modes of action and bacterial resistance mechanisms for relevant nanomaterials and their impact on the resulting synergistic effects. Following thorough data analysis and critical discussion, we have discovered and are the first who present that antibiotic’s mode of action and bacterial resistance mechanism determine the final effectiveness of combined antibacterial treatment with nanomaterials. We therefore conclude that only certain combinations of nanomaterials with antibiotics can lead to the enhancement and restoration of the antibacterial effectiveness of antibiotics against certain resistant bacteria. Moreover, the recently occurring development of bacterial resistance towards nanomaterials is also discussed together with a possibility of how to prevent it. All discovered findings provide a new view and perspective on this issue helping to navigate further approaches to combat the antibiotic crisis.
Präparation einer TEM-Probe aus einem metallographischen Schliff
Authors: Mühle Uwe , Jansen Sören , Leinert Susann , Breuer Dirk
Published: March 2022

Kurzfassung

Die Möglichkeiten transmissionselektronenmikroskopischer Analysen an komplexen Werkstoffsystemen sind in hohem Maße von den verfügbaren Präparationsmethoden abhängig. Die Focused-Ion-Beam-Technik mit der Möglichkeit hochqualitativer Zielpräparationen mit Genauigkeiten im Bereich 10 -8 m erweitert das Anwendungsspektrum beträchtlich. Die vorgestellte Methode nutzt einen metallographischen Schliff, an dem mit lichtoptischen oder rasterelektronenmikroskopischen Mitteln eine Charakterisierung und Auswahl der speziell interessierenden Details stattfinden kann. Untersuchungsobjekt ist das Grenzflächensystem einer Lötverbindung, wie sie bei der Montage von Chips entsteht. Der metallographische Schliff wird für die Arbeit im Focused-Ion-Beam-Gerät vorbereitet, mit einem Liftout-System wird eine Lamelle entnommen und an einem TEM-Probenträger befestigt. Die finalen Polierschritte erzeugen eine TEM-Probe, die für eine Reihe von zusätzlichen Untersuchungen (analytische TEM, Beugungsuntersuchungen) besonders geeignet ist.
Ermittlung von Zerspankraftkoeffizienten für FKV
Authors: Merx Marcel , Löser Michael , Müller Jens , Großmann Knut
Published: March 2022

Die spanende Bearbeitung von Bauteilen aus Faserkunststoffverbundwerkstoffen (FKV) ist mit Werkzeugmaschinen häufig unwirtschaftlich, da meist großer Bewegungsraum bei moderaten Genauigkeitsanforderungen und Prozesskräften erforderlich ist. Einen Lösungsansatz bietet die robotergestützte Bearbeitung. Zur simulationsgestützten Auslegung eines Roboter-Bearbeitungssystems wird ein Prozesskraftmodell benötigt. Eine Methodik zur Modellierung der Zerspankräfte und die Bestimmung der erforderlichen Zerspankraftkoeffizienten auf Basis experimenteller Untersuchungen werden in diesem Beitrag vorgestellt.
Green Controlling – Ressourcenorientierte Steuerung von Unternehmen
Authors: Rackow Tobias , Schuderer Peter , Franke Jörg
Published: March 2022

Der erste Schritt zur Hebung von Energieeinsparpotenzialen ist das Aufdecken unnötiger Verbräuche. Folglich ist es notwendig, den Unternehmen ein Werkzeug an die Hand zu geben, mittels dessen die Energieströme im Produktionsprozess transparent gemacht und visualisiert werden können. Hierzu bietet die Green Controlling-Methodik einen ganzheitlichen Lösungsansatz, indem sie Energie als vierte Hauptzielgröße – neben Zeit, Kosten und Qualität – in die Unternehmensführung aufnimmt und so dem gewichtigen Stellenwert dieser Größe gerecht wird.
Material- und Energieeffizienz in der Produktion
Authors: Wulf Serjosha , Ansari Sarah Majid , Nyhuis Peter
Published: March 2022

Ressourceneffizienz ist als Begriff eng mit dem Thema der Nachhaltigkeit verbunden. Ziel nachhaltiger Unternehmen ist es, Gewinne ökologisch und sozial verantwortungsvoll zu erwirtschaften, um so langfristig am Markt bestehen zu können. Voraussetzung hierzu ist ein grundlegendes Umdenken auf Managementebene. Die Unternehmensleitung muss sich zu einem schonenden Umgang mit den eingesetzten Produktionsressourcen bekennen und einen effizienten Umgang fördern. Dieser Beitrag zeigt einen Ansatz zur konkreten Einführung der Thematik in einen laufenden Produktionsbetrieb auf und schildert erste Erfahrungen aus der Praxis.*
The Persian version of the Youth Psychopathic Traits Inventory-Short Version (YPI-S): A psychometric evaluation
Authors: Ebrahimi Ali , Athar Mojtaba Elhami , Bakhshizadeh Mehdi , Lavasani Fahimeh Fathali , Andershed Henrik
Published: March 2022

Studies on the psychopathy construct are mostly limited to Western cultures, and there is a lack of research in this area in non-Western countries, specifically in Iran. The present study aimed to examine the factor structure, internal consistency, and convergent validity of the Persian version of the Youth Psychopathic Traits Inventory-Short Version (YPI-S) with a sample of 668 school-attending adolescents in Iran (46% girls; Mage = 16.35). Confirmatory factor analysis supported the proposed three-factor model. While the internal consistency of some YPI-S scores was unsatisfactory, the YPI-S scores showed the expected relations with external correlates (e.g., aggression, hyperactivity), supporting the validity of YPI-S scores. The authors’ results supported the YPI-S for assessing psychopathic traits in Iranian adolescents. The modification of the YPI-S factor structure, the low factor loadings of some YPI-S items, and the inadequate internal consistency of some YPI-S dimensions indicate cultural influences on the assessment of cross-cultural traits.
The temperature dependent current-voltage characteristics of chemically prepared AL/(P)PBS Schottky barrier junction
Authors:   Department of Physics, D. M. College of Science, Imphal-795001, Manipur, India, Rajen Singh L. , Hussain M. A. ,   Department of Physics, Imphal College, Impha-795130, Manipur, India
Published: March 2022

Zinc (Zn) doped nanocrystalline lead sulphide (PbS) thin film is prepared by chemical bath deposition (CBD) method at bath deposition temperature 313K using Zinc Acetate, Lead Acetate and Thiourea. The prepared films is characterized by X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX), Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. Al/(p)PbS Schottky barrier junctions are fabricated onto indium tin oxide (ITO) substrate to study the junction parameters. The Current-Voltage (I-V) characteristics of the junctions is measure in the temperature range of 303 to 333 K and various junction parameters are calculated. The ideality factor (n) and Schottky barrier height ( ) b at different temperatures are found to vary from 5.31 to 4.47 and 0.749 eV to 0.755 eV respectively. The carrier concentration is determined from the capacitance-voltage (C-V) plot and found to be of the order 1016cm-3 .
Synthesis of green phosphor SrAl2O4: Eu2+, Dy3+: Rietveld refinement and optical properties
Authors:   Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Jengka, Pahang, Malaysia, Roslan N. N. N , Razali W. A. W. ,   Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Jengka, Pahang, Malaysia, Tamuri A. R. ,   Department of Physics, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia, Azhan H. ,   Faculty of Applied Sciences, Universiti Teknologi MARA Pahang, 26400 Jengka, Pahang, Malaysia, Mohamed Z. ,   Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
Published: March 2022

Strontium aluminate (SrAl2O4), SrAl2O4: Eu2+ and SrAl2O4: Eu2+/Dy3+ phosphors were prepared by solution combustion method. The XRD patterns of the sample were analysed using Rietveld refinement. The analysis confirmed the multiphase structure consisting of hexagonal (P63 space group) and monoclinic (P121 space group) phases. The refinement χ2 values in the range of 2.1–2.8. The crystal structure model was generated based on the refined data. The refined unit cell volume show increment after Eu and Dy doping. The estimated crystallite size is approximately 19 nm and slightly increase after calcination. The emission spectra of the Eu2+ doped SrAl2O4 sample shows a broad emission band with a peak around 500 nm, corresponding to 4f6 5d1 –4f7 transition. With additional Dy3+ doping, the emission peak shifted towards 522 nm, which emitted green light as illustrated by the CIE diagram. The synthesized compounds were also characterized by FTIR and UV-vis for their chemical bonding and energy band gap respectively.
Economic Complexity and Sustainable Growth in Developing Countries
Authors: Hoeriyah Lilis , Nuryartono Nunung , Pasaribu Syamsul Hidayat
Published: March 2022

Most developing countries in this study are middle to low-income countries that have a relatively low economic complexity. This study aims to analyze the effect of the economic complexity on economic growth in 86 developing countries in 2010-2019. The method used is the Generalized Method of Moments (GMM) to capture dynamic panel analysis. The estimation results using the System GMM show that economic complexity has a positive effect on economic growth in developing countries. Increasing economic complexity encourages a structural transformation through high value-added economic sectors' creation to produce more complex products for earning a higher income. Human capital does not have a significant effect on economic growth because developing countries have relatively low-quality workers both in terms of education and health. The human capital development and government spending on the health sector are necessary to accelerate sustainable economic growth.
Tourism Development and Economic Growth: An Empirical Investigation for Indonesia
Authors: Rahmayani Dwi , Oktavilia Shanty , Suseno Deky Aji , Isnaini Elvira Latifa , Supriyadi Anton
Published: March 2022

This paper applies the panel technique to investigate relationships between tourism development and economic growth in Indonesia (including 33 provinces) for the 2011-2021 period. The research method used the Solow growth model with Harrod Neutral approach and derived into the econometrics model by Fixed Effect Model (FEM) with the gross regional domestic product as a dependent variable and proxied of economic growth. Independent variables include gross fixed capital formation as proxied of capital, labor, and tourism indicator. The tourism indicator is measured the average length of total guests, domestic guests, and foreign guests in the classified hotel. Using FEM, the result showed that gross fixed capital formation, labor, and the average length of domestic guests significantly positively affect economic growth. The other, the foreign guest has no significant effect on economic growth. Additionally, tourism development has a more significant impact on economic growth from domestic guests than from foreign guests. Finally, the panel analysis shows a significant effect of the modeling, especially tourism indicator, to promote economic growth in 16 provinces in Indonesia. Thus, our empirical findings have significant policy implications for supporting tourism development in all provinces for growing economic highly.
Genetic biomarkers of life-threatening pheochromocytoma-induced cardiomyopathy
Authors: Amar Jacques , Brunel Jeremy , Cardot Bauters Catherine , Jacques Virginie , Delmas Clément , Odou Marie-Françoise , Savagner Frédérique
Published: March 2022

The release of excessive amounts of catecholamine by pheochromocytoma–paragangliomas (PPGL) can lead to life-threatening catecholamine-induced cardiomyopathy (CIC). Single-nucleotide polymorphisms of the beta1 and alpha-2c adrenergic receptors alter myocyte receptor function and enhanced norepinephrine release. We tested the hypothesis that such genetic variations may impact the risk of developing CIC in the context of PPGL. Thirty-one patients with PPGL, including nine with a history of CIC, were analyzed for alpha-2-adrenergic receptors: ADRA2C, beta-1 and beta-2 adrenergic receptors: ADRB1 and ADRB2 genotyping. CIC was defined either by a history of heart failure or cardiogenic shock associated with dilated or Takotsubo cardiomyopathy. Subjects were genotyped for ADRA2C (rs61767072 for del322_325), ADRB1 (rs1801252 for Ser49Gly and rs1801253 for Arg389Gly) and ADRB2 (rs1042713 for Arg16Gly and rs1042714 for Gln27Glu). Single-locus analysis revealed that variant in ADRA2C (alpha 2CDel322–325) was more common among patients with CIC than among controls (allele frequency, 0.44 vs 0.05; P< 0.001). The lack of alpha 2CDel322–325 polymorphism has a negative predictive value of 95% for the onset of CIC. In a replication cohort including 26 patients with PPGL whom eight have developed a CIC, the association between Alpha 2CDel322–325 and CIC was confirmed (allele frequency, 0.33 vs 0.; P= 0.0001). In conclusion, Alpha 2CDel322–325 through the identification of patients at low risk of developing CIC can help physicians to better determine the most appropriate therapeutic approach, notably in patients at high risk of surgical complications.
A tissue-specific role of membrane-initiated ERα signaling for the effects of SERMs
Authors: Gustafsson Karin L , Movérare-Skrtic Sofia , Farman Helen H , Engdahl Cecilia , Henning Petra , Nilsson Karin H , Scheffler Julia M , Sehic Edina , Islander Ulrika , Levin Ellis , Ohlsson Claes , Lagerquist Marie K
Published: March 2022

Selective estrogen receptor modulators (SERMs) act as estrogen receptor (ER) agonists or antagonists in a tissue-specific manner. ERs exert effects via nuclear actions but can also utilize membrane-initiated signaling pathways. To determine if membrane-initiated ERα (mERα) signaling affects SERM action in a tissue-specific manner, C451A mice, lacking mERα signaling due to a mutation at palmitoylation site C451, were treated with Lasofoxifene (Las), Bazedoxifene (Bza), or estradiol (E2), and various tissues were evaluated. Las and Bza treatment increased uterine weight to a similar extent in C451A and control mice, demonstrating mERα-independent uterine SERM effects, while the E2 effect on the uterus was predominantly mERα-dependent. Las and Bza treatment increased both trabecular and cortical bone mass in controls to a similar degree as E2, while both SERM and E2 treatment effects were absent in C451A mice. This demonstrates that SERM effects, similar to E2 effects, in the skeleton are mERα-dependent. Both Las and E2 treatment decreased thymus weight in controls, while neither treatment affected the thymus in C451A mice, demonstrating mERα-dependent SERM and E2 effects in this tissue. Interestingly, both SERM and E2 treatments decreased the total body fat percent in C451A mice, demonstrating the ability of these treatments to affect fat tissue in the absence of functional mERα signaling. In conclusion, mERα signaling can modulate SERM responses in a tissue-specific manner. This novel knowledge increases the understanding of the mechanisms behind SERM effects and may thereby facilitate the development of new improved SERMs.
Thermodynamic and Exergetic Analysis of the Allam Cycle
Authors: Mariani Elisa , Talluri Lorenzo , Manfrida Giampaolo
Published: March 2022

This paper presents the study on the current developments of oxy-combustion thermodynamic cycles, which use the CO2 produced by combustion within the cycle itself without releases into the atmosphere. This is the cause of the attention paid to this type of technology and which makes these cycles one of the avant-gardes of power plants. In particular, this study focuses on the analysis of the Allam cycle with the aim of evaluating its performance and therefore investigating whether it may be an alternative to the series of CO2 control technologies. In this paper, a first principle efficiency of 54.6% and a second principle efficiency of 55.7% are estimated, confirming the outstanding prospect of the NET Power cycle.
Seamless Switching Technology of UPQC Based on Improved Power Angle Control
Authors: Qu Zhengwei , Shi Zhe , Wang Yunjing , Abu-Siada Ahmed , Wang Baona , Dong Haiyan
Published: March 2022

This paper presents a novel seamless switching technology between different operating conditions of the Unified Power Quality Conditioner (UPQC) with the energy storage system. Frequent start and stop of the series inverter will cause shock and loss under the conventional control method. Moreover, it is a key issue to achieve seamless switching when the UPQC operating condition changes. This paper proposes an improved power angle control (PAC) method to solve these problems. An agile power angle is calculated by this method under stable operating conditions. This feature enables the series inverter to share the load reactive power with the shunt inverter. On the other hand, both the series and shunt inverters are in an easy-to-switch operating state which can help achieve better seamless switching between different operating conditions. Simulation results show the shunt inverter capacity can be reduced up to 47% due to the reactive power sharing by both the inverters which means the reactive power burden of the shunt inverter is great lightened. It is also found that the switching time is about 300μs faster and the maximum voltage fluctuation amplitude is about 90V smaller under improved PAC than the conventional control method.
Research on Investment Strategy and Evaluation Mechanism of Power Enterprises Considering Local Development Characteristics
Authors: Yang Jiahui , Wang Wei , Duan Ke , Yang Yifan
Published: March 2022

The investment in developing industries with local characteristics is an essential link in the industrial investment chain of power enterprises. Reasonably selecting industries worthy of investment will significantly improve the income of power enterprises. Firstly, this paper constructs an investment project benefit evaluation system including economic benefit indicators and social environment indicators. Secondly, the combination of the analytic hierarchy process and grey correlation method is used to determine the index weight, and the comprehensive evaluation method is used to calculate the score of each index. Finally, the corresponding investment proportion allocation model is established to calculate the relevant industries worthy of investment.
Nutritive content of lentil
Authors: Sharma Harshita , Ramawat Naleeni , Gupta Charu
Published: March 2022

Lentil (Lens culinaris) is a very important nutritious crop, grown, consumed throughout the world due to its high macro and micronutrients contents, including all the minerals. The nutritive components of lentil have several beneficial influences on human health. The current review aims to highlight the present knowledge on the mineral, amino acid, lipids, vitamins and carbohydrate composition of lentils. Thereby, a literature search was conducted using reliable sources: Elsevier, Research gate, Springer, etc to understand the overall nutritive status of lentils. The proximate composition of lentils is similar when compared with other legumes but the seed contains low concentrations of fat, fiber. Lentils supply a reasonably balanced range of all minerals. Lentils contain a number of anti-nutritive factors and these may be controlled either by processing or possibly by plant breeding programs. Anti-nutritive factors are less important In human diets because of cooking and processing which normally occur prior to eating, Lentils have a potential as a protein concentrate and could be processed to produce many products similar to those produced from soya beans. Lentils should be used for a variety of purposes, mainly towards eliminating malnutrition, on the condition of being well-balanced. Lentils should be incorporated either in snacks or while preparing household, school, or hospital meals, particularly in developing countries.
Populorum Progressio
Authors: Júnior Francisco de Aquino
Published: March 2022

Fruto maduro do processo de renovação eclesial desencadeada por João XXIII e pelo Concílio Vaticano II, a Carta Encíclica Populorum Progressio do papa Paulo VI trata da problemática do “desenvolvimento dos povos” em um duplo aspecto: “desenvolvimento integral do homem” e “desenvolvimento solidário da humanidade”. Além de retomar e desenvolver intuições de João XXIII e do Concílio, essa encíclica sintoniza com os grandes problemas e desafios dos países pobres, tomando-os como centro da questão social e das preocupações pastorais da Igreja: desafio maior de nosso tempo, questão de solidariedade e justiça social e condição de paz na terra. E terá uma importância decisiva na II Conferência do Episcopado Latino-americano em Medellín em 1968. Este trabalho, como indica seu subtítulo, pretende ser um guia de leitura da encíclica. Começa indicando o contexto sócio-eclesial em que ela surge e ao qual procura responder. Faz uma apresentação panorâmica da estrutura e do conteúdo do texto. E conclui destacando alguns pontos importantes para sua adequada compreensão e interpretação.
O direito à educação aos privados de liberdade no Brasil e o papel do FUNPEN no seu financiamento
Authors: Carvalho Fabrício Aarão Freire , Coelho Maria do Socorro da Costa , Batista Pablo Aguiar Castro
Published: March 2022

Este estudo teve por objetivo analisar o papel do Fundo Penitenciário Nacional (FUNPEN) no financiamento das atividades educacionais, no esforço do Estado brasileiro, em promover a reinserção social dos privados de liberdade no período de 2014 a 2018. Trata-se de uma pesquisa quanti-qualitativa pautada na análise de dados estatísticos e financeiros, na revisão bibliográfica e estudo documental do arcabouço legal que orienta o funcionamento do sistema penitenciário e do FUNPEN. A pesquisa revelou que temos um sistema penitenciário com unidades prisionais precárias, superlotadas, sem condições estruturais e de recursos humanos necessários para cumprir o seu papel de reintegração social por meio da educação a um público majoritariamente jovem e com baixa escolaridade, cuja política de financiamento, vem sendo marcada por problemas na fiscalização, no processo de prestação de contas, pelo contingenciamento de seus recursos e consequente desvios de suas finalidades para garantir o superávit primário governamental.
Mei-Lai, a menina mestiça do porto interior de Macau, em “A-Chan, a tancareira” (1950), de Henrique de Senna Fernandes (1923-2010)
Authors: Rocha Denise
Published: March 2022

O objetivo desse estudo é analisar no conto “A-Chan, a tancareira” (1950), de Henrique de Senna Fernandes (1923-2010), a condição de mestiça de Mei-Lai, loira e de olhos claros, filha de um português e de uma chinesa, que nasceu em Macau, no final da Guerra do Pacífico. A mãe da criança foi vendida pelos pais aos 6 anos de idade, para ser escrava doméstica (mui- chai) de uma tirana, que a ofertou à dona de um tancar, uma pequena embarcação de transporte de pessoas e mercadorias, na região do Porto Interior. No bairro flutuante macaense, a serva, frequentemente espancada, aprendeu o duro ofício e foi alforriada pela sua proprietária, de quem herdou o barco. Em 1944, o poder do acaso, cristalizado no pedido de Manuel, marinheiro da canhoneira Macau, para deslocamento pessoal dele, transformou a vida da jovem masculinizada, que tinha braços musculosos e mãos calejadas, mas era de natureza sensível e delicada. A narrativa do escritor macaense, que aborda a difícil situação dos pais e de Mei-Lai, que tinha traços europeus (eurasiana), em uma sociedade taoísta, colonizada por Portugal, será analisada segundo as reflexões sobre a identidade macaense, a mestiçagem e o estigma (Goffman).
Labirintos identitários em Todos os nomes, de Saramago
Authors: Góis Marcos Lúcio de Sousa , Braucks Noraci Cristiane Michel
Published: March 2022

Este trabalho problematiza a construção de identidades nestes tempos contemporâneos a partir de uma leitura do romance Todos os nomes, de José Saramago, pelo prisma teórico-metodológico dos estudos discursivos e culturais, centrando a discussão no personagem Sr. José. Este é um exercício analítico cujo desejo é contribuir para as discussões a respeito da relação entre discurso, literatura e identidade na chamada (pós)modernidade. Discutir “identidade” é também levantar pontos sobre “sujeito”, “subjetividade”, “história”, dentre outros termos nucleares a esse campo de estudo. O presente artigo, com base de modo especial em Stuart Hall e Zygmunt Bauman, inicia um percurso em busca por respostas para quem são os “anônimos” (ou Zés) na (pós)modernidade e como se constroem suas próprias significações na contemporaneidade. Fazem-se aqui perguntas; levantam-se algumas respostas.
Huertas escolares y biofertilización como estrategia hacia la mitigación y adaptación al cambio climático en Costa Rica
Authors: Rojas Alvarado Carlos , Rojas-Camacho Pedro , Nakajima Shiori , Doss Robin G. , Rodríguez-Mora Karina
Published: March 2022

School gardens are important for the conceptual integration of topics such as climate change. Using a biofertilization experiment in a school garden, we evaluated four experimental treatments and the student knowledge to some sustainable practices. Solid biofertilization was more effective than liquid treatments. The effect of the garden establishment was positive on the knowledge demonstrated by students. Similar activities are recommended in the context of primary education in Costa Rica.
El carácter fundacional y origen de San Vito de Java, Coto Brus (Costa Rica: 1952-2020) a sesenta y ocho años de su fundación
Authors: Rimolo-Bariatti Annamaria
Published: March 2022

El objetivo de este artículo es abordar el carácter fundacional y origen de San Vito en la población ítalo-sanviteña de la primera a la tercera generación, a través del análisis de las propias elaboraciones discursivas -insertas en un continuum que va de lo hegemónico a lo contrahegemónico.  San Vito se encuentra en la zona sur de Costa Rica, en la provincia de Puntarenas y es cabecera del cantón de Coto Brus.  Al respecto, nos preguntamos: ¿cómo se fundó San Vito? y ¿quiénes son sus fundadores?  Este análisis sigue los lineamientos sobre las ideologías y el discurso de Teun van Dijk (2000) y el binomio hegemónico/contrahegemónico de James Scott (1985 y 1990).
Elaboración y caracterización de bioles de residuos orgánicos
Authors: Jara-Samaniego Lourdes Janneth , Gallegos-Núñez Janneth María , Cruz-Torres María Alejandra
Published: March 2022

Se obtuvieron bioles, mediante la co-digestión anaeróbica de residuos de leguminosas y excretas de bovinos. Se aplicó un diseño experimental completamente al azar con 3 repeticiones por tratamiento. A cada una de las 3 mezclas base de materia orgánica se inocularon: bacterias ácido lácticas en cultivo mixto (T1), leche cruda (T2) y suero de leche (T3). Los sustratos se prepararon siguiendo una fórmula empírica y se fermentaron en un biodigestor artesanal de 6 Litros. Los bioles demostraron propiedades funcionales compatibles con su uso en la agricultura ecológica.
Fantasías, mitos y creencias ideológicas en los tiempos de Macri
Authors: Fair Hernán
Published: March 2022

El presente trabajo investiga la operación hegemónica de Cambiemos, enfocándose en el análisis de los imaginarios sociales escenificados por el discurso macrista en la esfera pública durante la campaña presidencial del 2015 y en su período de gobierno (2015-2019). A través de herramientas analíticas de la Teoría Política del Discurso, se indaga en las fantasías, mitos y creencias ideológicas difundidas por el discurso macrista y sus usos retóricos para intentar legitimar sus políticas públicas neoliberales y construir un exitoso sentido común en la Argentina. En la segunda parte, se analizan los mandatos superyoicos del discurso de Macri y el robo del goce. El artículo argumenta que el discurso macrista redefinió una serie de mitos y creencias sedimentadas de matriz neoliberal (el Mito del Derrame ligado al crecimiento del campo, y el mito del Estado como homólogo a una empresa privada) para intentar construir una nueva hegemonía. Estos mitos se vincularon a una fantasía consensualista y objetivista, asentada en una gestión tecnocrático-ingenieril del Estado, y una fantasía evolucionista de mejora económica progresiva y gradual, centrada en el significante Cambio. El reverso sintomático de la fantasía ideológica se expresó fenoménicamente a través de la demonización y estigmatización de la alteridad en la figura execrable del kirchnerismo, culpable de todos los males del país.
Mamíferos terrestres de la Reserva Biológica Alberto Manuel Brenes, Costa Rica, durante el período 2009-2012
Authors: Cartín Nuñez Melvin
Published: March 2022

Introducción: Estudiar mamíferos en los bosques tropicales es arduo y costoso, no obstante, el avance tecnológico ha favorecido la investigación de este grupo en muchas áreas naturales de Costa Rica. Objetivo: Determinar la riqueza y abundancia relativa de mamíferos grandes y medianos de la Reserva Biológica Alberto Manuel Brenes, San Ramón, Costa Rica, en el período 2009-2012. Materiales y métodos: Se colocaron cámaras trampa en senderos de visitantes y senderos de vigilancia durante un período de 48 meses y se registraron las capturas de mamíferos con talla ≥500 g. Resultados: Se registraron 20 especies (14 familias) de mamíferos. Cuniculus paca, Didelphis marsupialis, Nasua narica y Puma concolor fueron las especies con mayor abundancia relativa. Se obtuvieron registros de todos los felinos presentes en el área, incluso del jaguar. La abundancia relativa de las especies varió a través de los años pero no presentó ningún patrón. Al comparar senderos de visitantes y senderos de vigilancia, no se encontró diferencia en la abundancia de mamíferos entre ambos tipos. Conclusión: Se registraron 20 especies de mamíferos aunque la riqueza seguramente es mayor; no se observó ningún patrón evidente en la abundancia relativa de las especies durante los años de estudio y resalta la presencia del jaguar en los 4 años de muestreo, lo que habla bien del estado de conservación del área. No hay evidencia que apoye la creencia que los mamíferos eviten usar los senderos de visitantes aledaños a la Estación Biológica del área protegida.
Identificación de los factores de riesgo de la conducta suicida a través de personas con experiencias propias o cercanas al suicidio, del cantón de La Cruz, Guanacaste
Authors: Campos Chaves Marleny , Campos Taryn Torres , Mejías Roxana Alemán
Published: March 2022

La presente investigación, etnográfica con enfoque cualitativo, se llevó a cabo con una población de 24 personas del cantón de La Cruz, Guanacaste en el año 2019-2020 y buscó identificar factores de riesgo asociados con la conducta suicida identificados a través de los relatos de personas sobrevivientes (familiares) de casos de suicidio consumado y personas que han realizado intentos suicidas, residentes en el cantón de La Cruz, Guanacaste. El análisis de la información se plantea a partir de los criterios de los determinantes de la salud mental, propuestos por la Organización Mundial de la Salud-OMS, los cuales se delimitan en cuatro indicadores: biológicos, económicos, socioculturales y ambientales o ecológicos.

El estudio se llevó a cabo en una de las comunidades con mayor vulnerabilidad y con mayores índices de intentos de suicidios de la provincia guanacasteca (Dirección Vigilancia de la Salud, Ministerio de Salud, 2018). Es una investigación interinstitucional e interdisciplinaria que involucra a la Universidad de Costa Rica, el Ministerio de Salud y la Caja Costarricense de Seguro Social.

Algunos de los principales factores de riesgo son los estilos de vida dominados por una cultura patriarcal en la que la violencia hacia mujeres está presente, el no ejercer los roles masculinos tradicionales, la desesperanza y aislamiento en las personas jóvenes, así como sentimientos de inseguridad por el tráfico de drogas, sicariato y trata de personas. Por consiguiente, se espera que los resultados generen un impacto en las políticas locales en salud mental y en los procesos de atención a estas poblaciones.
Enseñanza del inglés con propósitos ocupacionales en sitio: experiencia de extensión universitaria en un hotel
Authors: Blanco Navarro Randal Esteban
Published: March 2022

Este artículo describe una experiencia de vínculo entre un proyecto de extensión docente universitaria, en este caso ED-3314 La Casa de Idiomas del Recinto de Golfito, con una empresa turística hotelera para brindar cursos de inglés en sitio a sus personas trabajadoras y pobladoras de una comunidad rural durante el periodo 2018 al 2019. Para aquellos extensionistas interesados en plantear, reorientar o fortalecer un proyecto de acción social en zonas rurales, enfocados al desarrollo de habilidades lingüísticas en inglés con fines ocupacionales en sitio, encontrarán una serie de consideraciones teóricas y metodológicas ilustradas en esta experiencia de extensión docente universitaria.  La descripción incluye una breve revisión bibliográfica sobre el diseño curricular en programas de idiomas, la enseñanza del inglés con fines ocupacionales, una reseña histórica del establecimiento del vínculo universidad-empresa turística, la caracterización de la población participante, así como la acogida de la oferta educativa en términos de las matrículas consolidadas por dos años. Este documento brinda insumos encaminados a la reflexión e innovación en la enseñanza del inglés con fines ocupacionales en sitio en el marco de vínculos entre la universidad y empresas turísticas.
The virtual experience of the course Drama for English as Second Language at the Sede del Pacífico of the Universidad de Costa Rica
Authors: Salas Alvarado Jonathan
Published: March 2022

This article systematizes the experience lived by the teacher and the students of the course Drama for English as Second Language during the first semester of 2020. This semester was particularly marked by the beginning of the COVID-19 pandemic. The article provides definitions of terms used during the course but most importantly it deals with the adaptation process the teacher went through to adjust the contents, activities, and instruction of this course to a new virtual reality that had never been experienced by any of the participants (including the teacher). An important part of the course is to approach the participants (11 English Teaching senior students) to different drama and theater techniques that can be used in the English classroom. So, the article also mentions the activities that were implemented, the way they were developed and it offers the perception of the participants about the course itself, the job done by the teaching when adapting the contents, and their criteria regarding the activities presented so that they, as future teachers, can talk about the teaching potential those activities have. The techniques were developed during the whole semester and as long as they were implemented, participants were requested to provide their opinions regarding positive and negative aspects of the activities developed, that information was kept and then systematized. Also, by the end of the semester, participants were given a digital instrument that helps them evaluate the course and offer their opinions and ideas about it. The results are very positive and encouraging since participants, despite the pandemic, mentioned being satisfied with the development of the course and see a lot of teaching potential in the activities developed during the semester.
El “ictus” inicial de una orquesta sinfónica en la Sede del Atlántico, Universidad de Costa Rica
Authors: Zamora-Ulate Mauricio
Published: March 2022

Se realiza un estudio para analizar los conocimientos, saberes y elementos de organización en la conformación y sostenibilidad de la Orquesta Sinfónica del Atlántico. Esta autoetnografía utiliza la memoria personal, la autobservación, la autorreflexión, las entrevistas y la sistematización de experiencias como herramienta para recolectar la información de los protagonistas de la historia inicial, la cual se analizó y se presenta en este trabajo. De esta manera, se obtuvo un perfil de músico, importancia de la relación del grupo con otras organizaciones y la relevancia que puede tener una presentación de una orquesta para su desarrollo.
Experiencia de la virtualidad en extensión docente debido a la pandemia por COVID-19: El caso del proyecto de idiomas de la Sede del Pacífico de la Universidad de Costa Rica en el marco de su décimo aniversario
Authors: López-Montero Rosberly
Published: March 2022

El presente artículo tiene la finalidad de exponer la experiencia del cambio a la educación virtual generado por la pandemia por COVID-19 desde la perspectiva de un proyecto de extensión docente: ED-2884 Idiomas para la Comunicación Internacional, de la Sede del Pacífico de la Universidad de Costa Rica, mediante la exposición de los principales retos y oportunidades derivados de esta emergencia sanitaria de cara a la primera década de servicio en la Región Pacífico Central costarricense. La transición abrupta a la virtualidad ha obligado a replantear el ofrecimiento del servicio a la comunidad, pero a la vez ha permitido un impacto geográfico de mayor escala.
Afrontamiento emocional implementado por las personas docentes en Costa Rica para el manejo del estrés
Authors: Retana-Alvarado Diego Armando , González-Ríos Jéssica , Pérez-Villalobos Dayanna
Published: March 2022

La docencia es una de las profesiones con mayor incidencia de estrés que afecta no solo la vida laboral de los profesionales, sino que trasciende al ámbito personal. Hay pocos estudios acerca del afrontamiento emocional de los docentes de primaria en Costa Rica. El objetivo es analizar el afrontamiento emocional, implementado por educadores que laboran en el cantón central de Alajuela (Costa Rica) en 2021. Se envió una encuesta en línea, adaptada del instrumento ED-6 (Escala de estrés docente), a 131 educadores de escuelas públicas. La escala está constituida por seis dimensiones: ansiedad, depresión, creencias desadaptativas, presiones, desmotivación y mal afrontamiento. Síntomas como preocupación, insomnio, sudoración, perturbación, ansiedad y tensión sugieren que las personas docentes experimentan altos niveles de estrés y están propensas a desarrollar depresión, la cual se acompaña de llanto y tristeza excesiva, falta de energía y cambios sociales. Si bien, las personas docentes conocen los elementos estresores a los que se encuentran expuestos por la naturaleza de su profesión y muestran habilidad de afrontamiento emocional en el ámbito laboral, reflejan deficiencias respecto al ámbito personal.
Evaluación de la huella hídrica del café en la estación experimental Pueblo Bello
Authors: Cotes-García Daniel , Díaz-Muegue Luis Carlos , Mendoza-Castro Martha Lucia
Published: March 2022

En este estudio se utilizó el software Cropwat 8.0, con el fin de evaluar la huella hídrica del café en la estación experimental Pueblo Bello en el departamento del Cesar, el cual se ve reflejado en la sostenibilidad Ambiental, social y económica de la huella hídrica. Esta metodología se basó en el manual de huella hídrica propuesto por Hoekstra et al, en donde para calcular la huella hídrica se tomó como referencia los datos climáticos para los años 2017 y 2018, los cuales sirvieron para calcular la huella hídrica verde y el Agua Virtual. Finalmente, los resultados mostraron que la huella hídrica en el 2017 fue 84,24 m3/año y para el 2018 fue 86,58 m3/año, lo cual demuestra que el consumo de agua en la estación experimental para estos años fue bajo, ya que para producir 1 Kg de café se requirió aproximadamente 0,3 litros de agua.
Procedimiento para el diseño de investigaciones bajo el enfoque de revisión sistemática. Un caso de aplicación
Authors: Yáñez-Díaz María Fernanda , Prieto-Velásquez Miladis , Medina-Jaimes Deisy Xiomara , Madriz-Rodríguez Delia Alejandra
Published: March 2022

El objetivo del presente artículo es mostrar un procedimiento para el diseño de investigaciones bajo el enfoque de revisión sistemática, explicado a través de una investigación realizada en el objeto de estudio de la Morbilidad Materna Extrema (MME), en el campo de la Enfermería. Se trató de un estudio cualitativo, de diseño documental, bajo el método heurístico para el proceso creativo, y de nivel descriptivo. Como resultado, se muestra una estructura de 4 fases: planteamiento de la situación a investigar; diseño de los objetivos de investigación; construcción del procedimiento de revisión sistemática; Generación de los resultados de los objetivos de investigación. Se muestran herramientas gráficas y enfoques de análisis, que se constituyen en el principal aporte para la comprensión y desarrollo eficaz de una revisión sistemática en cualquier campo del conocimiento.
Haunted Archives: Presence and Absence in the Audio-visual Record of Conflict in Bosnia-Herzegovina
Authors: Van Oldenborgh Lennaart
Published: March 2022

This paper examines the potential consequences of the loss of raw rushes of historical events on collective memory. It examines two sets of rushes from 21 August 1993 that survived against the odds, of the arrival of the first humanitarian aid convoy in the besieged enclave of east Mostar, Bosnia-Herzegovina. These rushes were compared with edited accounts and examined for elements that, in the words of Dai Vaughan, could generate “meanings oblique, peripheral or even antagonistic to the text as understood.” 

According to a well-worn maxim, “journalism is the first rough draft of history”. This is certainly true for audio-visual media: typically, archives preserve edited, “finished” films, and rushes often get lost from the record. This highlights a sometimes overlooked form of exclusion from the archive: the selection of footage in the editing room. In commercial news archives economic pressures determine which footage will be digitised, and a diminishing pool of well-known images tend to be re-used in a “feedback loop of historical footage”. 

Examining the rushes of the aid convoy to Mostar reveals how much the news coverage is coloured by the media spectacle accompanying the convoy. The clear emphasis on the humanitarian aspects of the story downplays the political stakes of the warring parties, and incongruous jokes to the camera provide unexpected glimpses of the pressures and the privileges of the international journalists and aid workers producing the images. These are insights that could only have been gleaned from the raw rushes of the situation, and are an indication of the kind of insights into comparable events that may have been “narrativised” out of the historical record, and lost on the cutting room floor.
Translating Interfaces in the Ms. Magazine Archive
Authors: Hanna Fabiola , Lusztig Irene
Published: March 2022

Yours in Sisterhood is an iterative, multimodal media project that includes a 2018 feature length performative documentary, produced and directed by filmmaker Irene Lusztig, and a digital archive co-created by Lusztig and digital media scholar-artist Fabiola Hanna that is currently in production. While the digital YiS archive is still a work in progress, we put forward our work on this large-scale interactive project as a case study for considering methodologies and practices of archival translation as we move from original paper documents in an interface of folders and boxes to video footage to a browser-based digital archive. These multiple YiS translations provide a compelling case study because of their significant shifts in interpretation: from the librarian’s interface work of cataloguing, preserving, and organising the letters in folders and boxes, to the filmmaker’s interface work of editing the video readings into the form of a documentary, and finally to the current collaborative interface work of designing the video database and its query system that populates the online project. Such critical and scholarly attention to the translation of archives at the interface level will facilitate analysis and assessment of the labour, the decisions, and losses and gains of these types of translations.
Anarchiving the New York Avant-Garde: The Phantom of Barbara Rubin’s Christmas on Earth
Authors: Rho Giulia
Published: March 2022

This featurette addresses the encounter with the illicit digitised images of Barbara Rubin’s psychedelic short film Christmas on Earth (1963-65). Following So Mayer’s interpretation of Derrida’s archive fever as the ache of a phantom limb (2020), I take the film as an urgent invitation to question history and open it up to the ghosts who haunt it, demanding rightful recognition. This practice of anarchiving, to use Brian Massumi’s term, the disjointed digital archive of counter-cinema aims at reactivating the power of Christmas on Earth and building a sensual, bodily relationship with it across time and space. The hope is to revisit the past and relodge forgotten memories in contemporary contexts, so they can be inherited as a political legacy.  

This article contains images that feature nudity and sexual activity.
Borrowed Dreams: Joseph Cornell and the Archive as Psychic Imprint
Authors: Broomer Stephen
Published: March 2022

During the first screening of Joseph Cornell’s Rose Hobart at the Julien Levy Gallery in New York City in 1936, the Surrealist painter Salvador Dalí forcefully knocked over the film projector in a rage, accusing Cornell of having stolen the idea for the film from Dalí’s own subconscious. A foundational figure in American surrealism, Cornell had produced a new and startling variation on the compilation film. Rose Hobart represented the first attempt by the filmmaker to produce an intimate psychological exploration through found images drawn from the informal archive of the junk shop, a dramatic break from the compilation filmmakers for whom the archive primarily served an evidentiary role. In this video essay, Stephen Broomer surveys Cornell’s films, focusing on the artist’s relationship to his own rough, provisional archive as a site of psychic provocation. This video essay addresses the oneiric singularity of Cornell's films by visually remixing the films, integrating them alongside compilation, surrealist, and trance films, and in doing so explores Cornell’s use of the hard cut to suggest reaction, contrast and equivalence.