bluuebunny/crossref_metadata_2025 huggingface dataset:
Doppler effect of polarization grating
Authors: Sha Qimeng , Qiu Song , Liu Tong , Wang Weijie , Ren Yuan
Published: March 2021

The Doppler effect of motional polarization grating is studied for the first time to the best of our knowledge. Based on the optical properties of polarization grating, the Doppler effect principle of polarization grating is elucidated theoretically. A method to obtain the Doppler frequency shift based on beat frequency signal that is produced by superposition of order

±

1

diffraction beams of polarization grating is proposed, and a proof-of-concept experiment is conducted to measure the frequency signal of the motional polarization grating. The movement characteristics of polarization grating varying with time can be obtained after a short-time Fourier transformation of the light signal. The experimental results are in good agreement with the theoretical predication, which verifies the correctness of the theoretical analysis and achieves the measurement of linear motion velocity and acceleration of motional polarization grating with high accuracy. This study proposes a new idea for laser frequency shift and has potential significance for further development of optical heterodyne detection.
FPGA-based implementation of two-step schedulers for modular optical interconnection networks
Authors: Borromeo Justine Cris , Cerutti Isabella , Castoldi Piero , Reyes Rosula , Andriolli Nicola
Published: March 2021

Optical interconnection networks promise to overcome the limitations of current electronic switching fabrics, enabling higher throughput, lower latency, and lower power consumption. Multi-plane architectures, based on multiple optical switching domains (e.g., space, time, wavelength, orbital angular momentum), are gaining research attention because of their modularity and scalability compared to single-domain switches. An effective scheduler, namely, the two-step scheduler (TSS), has been proposed for multi-plane optical interconnection networks, exploiting their modularity to speed up computations while satisfying the peculiar scheduling constraints. In this paper, a hardware implementation of TSS for modular optical interconnection networks is presented and thoroughly assessed. Both scheduling steps are parallelized with the aim of optimizing the execution time. iSLIP and longest queue first (LQF) scheduling algorithms are exploited in each step, resulting in four TSS configurations that are compared among each other and with classical single-step schedulers (SSSs) in terms of scheduling and hardware performance. TSS outperforms SSS in terms of the number of iterations, maximum operating frequency, worst-case scheduling duration, and required logic resources (i.e., scalability) at the expense of a slight latency penalty. Among all TSS configurations, LQF-based TSS guarantees the lowest scheduling latency, while iSLIP-based TSS minimizes the scheduling duration and the use of field programmable gate array (FPGA) resources.
Sensitivity enhancement of a difference interferometer refractive index sensor based on a silicon-on-insulator hybrid plasmonic waveguide
Authors: Okda Hesham A. , Rabia Sherif I. , Shalaby Hossam M. H.
Published: March 2021

A refractive index (RI) sensor using a silicon-on-insulator hybrid plasmonic waveguide (HPWG) difference interferometer is proposed. We first provide a rigorous analysis that enables the construction of the modal characteristic equations of the TM- and TE-polarized modes in a HPWG. These equations are solved to get the modes’ complex effective indices in addition to their electromagnetic power distributions. The feature of polarization spatial diversity in HPWGs is then exploited to design a difference interferometer with a superior sensing capability. Our results reveal that the proposed device has a lower limit of detection of

1.32
×

10

−
6

refractive index unit (RIU) and a sensitivity of

756.2
π

r
a
d

/

R
I
U

at a wavelength of 1550 nm, accounting for a greater than 50% improvement to the sensitivities of recently published all-dielectric interferometers. Moreover, the sensing interactive length in this work is shown to be 1396 µm, acquiring more than a threefold reduction compared to those reported in the literature. In addition, the propagation loss is reduced by more than

5
×

10
2

times compared to its value in the case of a surface plasmon interferometer, which is found to enhance the detectable power level by 13.6 dB. Furthermore, the proposed HPWG difference interferometer is investigated with a broadband interrogation. Our findings come out with a high density of local extrema of the light interference intensity, for a short sensing interactive length, in the spectral range of interest (from 1490 to 1610 nm), which is favorable for accurate statistical analysis of the interference intensity signal.
Low operating voltage monolithic stacked perovskite photodetectors for imaging applications
Authors: Zhao Hongliang , Li Tengteng , Li Qingyan , Ma Chengqi , Li Jie , Zheng Chenglong , Zhang Yating , Yao Jianquan
Published: March 2021

The monolithic stacked design is expected to solve the challenges of wiring difficulties, complex fabrication processes, and low resolution. However, a photodetector array with low operating voltage that is suitable for imaging applications has not been proposed. Here, a perovskite photodetector array with a monolithic stacked structure is proposed. The CH3NH3PbI3 photodetector has a low power consumption off-state (0 V) and on-state (−2 V) voltage, and the highest responsivity and specific detectivity of 0.39 A/W and 4.53×1012 Jones at 775 nm, respectively. The rise time and decay time are 111 µs and 250 µs respectively. In addition, the imaging application shows high contrast, which provides a simple and effective way to prepare high performance perovskite imaging devices.
All-optical wavelength conversion based on dual-polarization SOAs for a 112Gbps PDM-16QAM signal using parallel dual-pump
Authors: Zhao Yuefeng , Yan Zhengkai , Fu Peng , Cai Yangjian , Yuan Yangsheng
Published: March 2021

We demonstrate an all-optical wavelength conversion (AOWC) scheme based on four wave mixing (FWM) effect in dual-polarization semiconductor optical amplifiers (SOAs) for 56Gbps polarization division multiplexing 16-ary quadrature amplitude modulation (PDM-16QAM) signal using parallel dual-pump. The orthogonal dual-polarization SOAs are utilized to improve the optical link capacity in terms of spectrum utilization and bandwidth efficiency. The polarization insensitivity wave signals are obtained at arbitrary polarization angle θ. The wavelength conversion efficiency (CE) is determined by optical signal-to-noise ratio (OSNR), pump spacing, injection current of SOA and pump power. The results show that the bit error rate (BER) of the converted signal 1’ and signal 2’ is lower than the converted signal 1 and signal 2. Our results can be used in long distance fiber optical communications.
Vectorial dark dissipative solitons in Kerr resonators
Authors: Kostet B. , Gopalakrishnan S. S. , Averlant E. , Soupart Y. , Panajotov K. , Tlidi M.
Published: March 2021

We report the existence of vectorial dark dissipative solitons in optical cavities subject to a coherently injected beam. We assume that the resonator is operating in a normal dispersion regime far from any modulational instability. We show that the vectorial front locking mechanism allows for the stabilisation of dark dissipative structures. These structures differ by their temporal duration and their state of polarization. We characterize them by constructing their heteroclinic snaking bifurcation diagram showing evidence of multistability within a finite range of the control parameter.
Watt-level SHG in undoped high step-index PPLN ridge waveguides
Authors: Pecheur Vincent , Porte Henri , Hauden Jérôme , Bassignot Florent , Deroh Moise , Chauvet Mathieu
Published: March 2021

Nonlinear quadratic waveguides are key components to obtain efficient frequency conversion. In this paper we present the performances of highly multimode periodically poled lithium niobate (PPLN) ridge waveguides for high power CW SHG are presented. We report the generation of 1 W of second harmonic on the fundamental guided mode with a conversion efficiency of 56% at telecom wavelengths. A stable nonlinear process is obtained despite use of an undoped congruent LiNbO3 crystal. The input damage threshold of the ridge waveguide is found to set the maximum usable power.
Seropositivity and geographical distribution of Strongyloides stercoralis in Australia: A study of pathology laboratory data from 2012–2016
Authors: Shield Jennifer , Braat Sabine , Watts Matthew , Robertson Gemma , Beaman Miles , McLeod James , Baird Robert W. , Hart Julie , Robson Jennifer , Lee Rogan , McKessar Stuart , Nicholson Suellen , Mayer-Coverdale Johanna , Biggs Beverley-Ann
Published: March 2021

Background

There are no national prevalence studies of Strongyloides stercoralis infection in Australia, although it is known to be endemic in northern Australia and is reported in high risk groups such as immigrants and returned travellers. We aimed to determine the seropositivity (number positive per 100,000 of population and percent positive of those tested) and geographical distribution of S. stercoralis by using data from pathology laboratories.

Methodology

We contacted all seven Australian laboratories that undertake Strongyloides serological (ELISA antibody) testing to request de-identified data from 2012–2016 inclusive. Six responded. One provided positive data only. The number of people positive, number negative and number tested per 100,000 of population (Australian Bureau of Statistics data) were calculated including for each state/territory, each Australian Bureau of Statistics Statistical Area Level 3 (region), and each suburb/town/community/locality. The data was summarized and expressed as maps of Australia and Greater Capital Cities.

Principal findings

We obtained data for 81,777 people who underwent serological testing for Strongyloides infection, 631 of whom were from a laboratory that provided positive data only. Overall, 32 (95% CI: 31, 33) people per 100,000 of population were seropositive, ranging between 23/100,000 (95% CI: 19, 29) (Tasmania) and 489/100,000 population (95%CI: 462, 517) (Northern Territory). Positive cases were detected across all states and territories, with the highest (260-996/100,000 and 17–40% of those tested) in regions across northern Australia, north-east New South Wales and north-west South Australia. Some regions in Greater Capital Cities also had a high seropositivity (112-188/100,000 and 17–20% of those tested). Relatively more males than females tested positive. Relatively more adults than children tested positive. Children were under-represented in the data.

Conclusions/Significance

The study confirms that substantial numbers of S. stercoralis infections occur in Australia and provides data to inform public health planning.
Is there meaningful influence from situational and environmental factors on the physical and technical activity of elite football players? Evidence from the data of 5 consecutive seasons of the German Bundesliga
Authors: Chmura Paweł , Liu Hongyou , Andrzejewski Marcin , Chmura Jan , Kowalczuk Edward , Rokita Andrzej , Konefał Marek
Published: March 2021

The study aimed to identify the effects of situational (match location, match outcome and strength of team/opponent team) and environmental (ambient temperature, relative humidity, WBGT, ground and weather condition) factors on the physical and technical activity of elite football on individual playing positions. Physical and technical activity were collected from 779 football players competing in the German Bundesliga during 5 domestic seasons, from 2014/2015 to 2018/2019, totalling 1530 matches. The data on players’ physical and technical activity was taken from the IMPIRE AG system. Based on the available data, 11 variables were selected to quantify the match activity profiles of players. The results showed that situational variables had major effects on the technical performance (especially number of passes performed) but minor effects on physical performance. In turn, among the analysed environmental factors, temperature is the most sensitive, which affects the Total Distance and Sprint Efforts of players in all five positions. This investigation demonstrated that, given that passing is a key technical activity in modern football, players and training staff should be particularly aware that passing maybe affected by situational variables. Professional players are able to react and adapt to various environmental conditions, modifying physical activity depending on the needs in German Bundesliga. These results could help coaches and analysts to better understand the influences of situational and environmental variables on individual playing positions during the evaluation of players’ physical and technical performance.
Dose of aspirin to prevent preterm preeclampsia in women with moderate or high-risk factors: A systematic review and meta-analysis
Authors: Van Doorn Rachel , Mukhtarova Narmin , Flyke Ian P. , Lasarev Michael , Kim KyungMann , Hennekens Charles H. , Hoppe Kara K.
Published: March 2021

Objective

To evaluate the effect of aspirin dose on the incidence of all gestational age preeclampsia and preterm preeclampsia.

Data sources

Electronic databases (Cochrane, PubMed, Scopus, ClinicalTrials.gov and the Web of Science) were searched for articles published between January 1985 and March 2019 with no language restrictions.

Methods

We followed the PRIMSA guidelines and utilized Covidence software. Articles were screened by 2 independent reviewers, with discrepancies settled by an independent 3rd party. Study selection criteria were randomized trials comparing aspirin for prevention of all gestational age and preterm preeclampsia to placebo or no antiplatelet treatment in women aged 15–55 years with moderate or high-risk factors according to the list of risk factors from American College of Obstetricians and Gynecologists and United States Preventive Services Task Force guidelines. The quality of trials was assessed using the Cochrane risk of bias tool. The data were pooled using a random-effects meta-analysis comparing aspirin at doses of <81, 81, 100, and 150 mg. Pre-specified outcomes were all gestational age and preterm preeclampsia.

Results

Of 1,609 articles screened, 23 randomized trials, which included 32,370 women, fulfilled the inclusion criteria. In preterm preeclampsia, women assigned at random to 150 mg experienced a significant 62% reduction in risk of preterm preeclampsia (RR = 0.38; 95% CI: 0.20–0.72; P = 0.011). Aspirin doses <150 mg produced no significant reductions. The number needed to treat with 150 mg of aspirin was 39 (95% CI: 23–100). There was a maximum 30% reduction in risk of all gestational age preeclampsia at all aspirin doses.

Conclusions

In this meta-analysis, based on indirect comparisons, aspirin at a dose greater than the current, recommended 81 mg was associated with the highest reduction in preterm preeclampsia. Our meta-analysis is limited due to the deficiency of homogeneous high evidence data available in the literature to date; however, it may be prudent for clinicians to consider that the optimal aspirin dose may be higher than the current guidelines advise. Future research to compare the efficacy aspirin doses greater than 81 mg is recommended.

Study registration

PROSPERO, CRD42019127951 (University of York, UK; http://www.crd.york.ac.uk/PROSPERO/).
Ventilator-associated pneumonia among ICU patients in WHO Southeast Asian region: A systematic review
Authors: Kharel Sanjeev , Bist Anil , Mishra Shyam Kumar
Published: March 2021

Ventilator-associated pneumonia (VAP) is one of the most frequent ICU-acquired infections and a leading cause of death among patients in Intensive Care Unit (ICU). The South East Asian Region is a part of the world with limited health resources where infectious diseases are still underestimated. We aimed to review the literature in this part of the world to describe incidence, mortality and microbiological evidence of VAP and explore preventive and control strategies. We selected 24 peer-reviewed articles published from January 1, 2000 to September 1, 2020 from electronic databases and manual searching for observational studies among adult patients diagnosed with VAP expressed per thousand days admitted in ICU. The VAP rates ranged from 2.13 to 116 per thousand days, varying among different countries of this region. A significant rate of mortality was observed in 13 studies ranging from 16.2% to 74.1%. Gram negative organisms like Acinetobacter spp., Pseudomonas aeruginosa and Klebsiella pneumoniae and Gram-positive organisms like Staphylococcus aureus and Enterococcus species were frequently found. Our findings suggest an alarming situation of VAP among patients of most of the countries of this region with increasing incidence, mortality and antibiotic resistance. Thus, there is an urgent need for cost effective control and preventive measures like interventional studies and educational programs on staff training, hand hygiene, awareness on antibiotic resistance, implementation of antibiotic stewardship programs and appropriate use of ventilator bundle approach.
Patients’ experiences of the complex trust-building process within digital cardiac rehabilitation
Authors: Anttila Marjo-Riitta , Söderlund Anne , Sjögren Tuulikki
Published: March 2021

The development of digital solutions is becoming increasingly important in facing global challenges. Therefore, research on this topic is important in taking into account cardiac patients’ experiences of the rehabilitation process for the design of digital counseling solutions. The aim of the present qualitative study was to explore the different meanings that patients give to the rehabilitation process using a Glaserian grounded theory (GT) approach. Qualitative interviews were conducted with 30 participants from a rehabilitation center in Finland. The findings indicated a “complex trust-building process” core category comprising five categories of trust-building in rehabilitation: feeling that one has hit rock bottom, facing and coping in a crosscurrent, understanding together as a peer group, moving toward a healthier lifestyle with technology, and finding self-awareness. The complex process of trust-building involved interactions among emotion, cognition, and acceptance and support processes. Therefore, digital rehabilitation should be incorporated into counseling based on patients’ psychosocial, physical and emotional needs to help patients become aware of their own feelings and thoughts during the rehabilitation process.
Multiplicative priming of the correct response can explain the interaction between Simon and flanker congruency
Authors: Rey-Mermet Alodie , Gade Miriam , Steinhauser Marco
Published: March 2021

In the Simon task, participants perform a decision on non-spatial features (e.g., stimulus color) by responding with a left or right key-press to a stimulus presented on the left or right side of the screen. In the flanker task, they classify the central character while ignoring the flanking characters. In each task, there is a conflict between the response-relevant features and the response-irrelevant features (i.e., the location on the screen for the Simon task, and the flankers for the flanker task). Thus, in both tasks, resolving conflict requires to inhibit irrelevant features and to focus on relevant features. When both tasks were combined within the same trial (e.g., when the row of characters was presented on the left or right side of the screen), most previous research has shown an interaction. In the present study, we investigated whether this interaction is affected by a multiplicative priming of the correct response occurring when both Simon and flanker irrelevant features co-activate the correct response (Exp. 1), a spatial overlap between Simon and flanker features (Exp. 2), and the learning of stimulus-response pairings (Exp. 3). The results only show an impact of multiplicative priming.
Transgender-specific developmental milestones and associated experiences of violence, discrimination, and stigma among Filipinx transgender women who are sexually active with men
Authors: Restar Arjee J. , Breslow Aaron S. , Jin Harry , Quilantang Ma Irene , Sison Olivia , Bermudez Amiel Nazer , Palatino Maylin , Adia Alexander , Cu-Uvin Susan , Operario Don , Nazareno Jennifer
Published: March 2021

Background

For transgender people, reaching transgender (trans)-specific developmental milestones, including recognizing and expressing one’s identity, plays an integral role in overall health, wellbeing, and the pursuit of gender affirmation. Yet trans people continue to face minority stressors, including structural violence (i.e., discrimination, violence, and stigma), which may interfere with the achievement of these milestones. Among trans women specifically, however, potential associations between gender developmental milestones and structural violence are not well characterized in the literature. In a sample of Filipinx (i.e., an inclusive term for describing non-binary genders in the Philippines) trans women who are sexually active with men (trans-WSM), we thus sought to: (a) describe the mean ages at which gender developmental milestones occur and (b) examine the associations between structural violence and mean ages at which at which Filipinx trans-WSM experience trans-specific developmental milestones.

Methods

Using data from Project #ParaSaAtin, an online survey of Filipinx trans-WSM (n = 139), we mapped age-estimates per trans-specific milestones and then tested whether structural violence is associated with the mean age at which trans women experience trans-specific developmental milestones.

Results

Overall, participants who reported higher levels of discrimination, stigma, and violence also experienced a later age for nearly each milestone (i.e., initial self-awareness of transfeminine identity, transfeminine expression in private, transfeminine expression in public, first consensual oral/vaginal/anal sex with a cisgender male partner, first consensual oral/vaginal/anal sex with a cisgender male partner as a trans women, and hormone integration) (all p-values <0.05). Of note, the single exception to this pattern was the non-significant association between stigma and initial disclosure of transfeminine identification to another person.

Conclusion

Results are consistent with psychological literature outlining a temporal sequence of developmental milestones among young trans-WSM. For young trans-WSM in the Philippines, data from this study demonstrate significant associations between structural violence and the achievement of developmental milestones. These findings highlight the need for trauma-informed, strengths-based programming and institutional policies that measure and mitigate anti-trans violence.
Emotional stability is related to 2D:4D and social desirability in women: Possible implications on subjective well-being and psychopathology
Authors: Rodríguez-Ramos Ángel , Moriana Juan Antonio , García-Torres Francisco , Ruiz-Rubio Manuel
Published: March 2021

Emotional stability-Neuroticism is a complex construct influenced by genetics and environmental factors. Women tend to exhibit higher neuroticism scores than men, which may be associated with an increased risk of suffering from some common mental conditions. Some authors have pointed out the influence of sex hormones, since they induce sexual differentiation of the brain that can lead to sex-specific behaviors. 2D:4D digit ratio is commonly used as a marker of prenatal sex hormones. In this study we analyzed whether there was an association between 2D:4D and personality measured through the BFQ in a homogeneous sample of 101 young women college students. We found a positive association between 2D:4D and emotional stability, as well as with its subdimensions emotion control and impulse control. This association could be quadratic and nonlinear. However, no association was found with the other four dimensions. We also measured anxiety, depression and global life satisfaction, variables related to neuroticism. We observed that emotional stability is positively associated to social desirability and global life satisfaction, and negatively related to anxiety and depression. On the other hand, we did not find any association between 2D:4D and anxiety, depression, and global life satisfaction. These results can be linked to other aspects such as subjective well-being and psychopathological symptoms. This study may help to better understand how these constructs are related and could lead to future projects to elucidated how these variables influence personality.
Periodical press and port cities: Creation of knowledge, representations and networks1
Authors: Costa Cátia Miriam , Pestana Olívia
Published: March 2021

Port cities constituted dynamic axes of national territories and stood out for their opening to the outside world for the transaction of goods, the reception of the new and the exchange of ideas. They were also free spaces for new technological experiences and the foundation of modern economic, scientific, social and political projects. They stood out as privileged territories for the establishment of networks of knowledge and through these networks maintained the contact with distant lands. Intellectual production in them is remarkable and the periodical press, providing general or specialized information, as an information industry at the service of new political, scientific and economic projects, finds space for its development within the port cities. This Special Section brings together researchers working on these subjects, allowing a multidisciplinary approach involving scholars from such scientific areas as communication, information, history, literature and international relations. The objective is to analyse the relationship between the periodic press and port cities and how these urban spaces fostered public opinion and debate projects, as well as new specialized information.
‘Relics’ and ‘historical memories’ in Macao’s Portuguese press: O Macaista Imparcial (1836–38) and José Baptista de Miranda e Lima (1782–1848)1
Authors: Sena Tereza
Published: March 2021

This article deals with the contribution of Macao Portuguese newspapers to the dissemination of sources, themes and works of a historical nature, often called antiguidades (‘relics’) and memorias historicas (‘historical memories’) and the politicization of historiographical text – a vast but practically unexplored topic that deserves an independent study. The approach is exploratory and descriptive, being first a non-detailed inventory of the theme, proposing a transversal reading of the press, the study of which is often focused on a chronological/thematic description of the various newspapers and magazines. A cross analysis was also carried out of the serials’ historical contents highlighting the writer/editor’s influence in selection, appropriation and dissemination of this same memories, compared with their individual historiographical writings and political and cultural intervention. Space constraints limit the present article – the first of a series under the general heading ‘relics’ and ‘historical memories’ – to the first half of the nineteenth century and to the newspaper O Macaista Imparcial (‘The impartial Macanese’) published between 1836 and 1838. Diversified historic news were found in the serial compiled by José Baptista de Miranda e Lima (1782–1848), a Portuguese and Latin grammar teacher as well as prominent and controversial figure of early liberalism in Macao. Being one of the first known authors to write in the Macanese creole, or patoá (‘patois’), he also used ethnic arguments in political reasoning, which deserves to be better explored. The present article concludes that the historical recurrence brought into the pages of O Macaista Imparcial is a traditional and foundational narrative of Macao’s exceptional and atypical characteristics, built and maintained under the Portuguese banner and, thanks to the perseverance, ability and skills of those in the terrain, deserving of recognition and of reward.
Coreografíar la experiencia urbana: RSVP Cycles, de Anna & Lawrence Halprin
Authors: Lorente Bilbao José Ignacio
Published: March 2021

A lo largo de la segunda mitad del pasado siglo, las ciudades industriales fueron objeto de profundos procesos de regeneración y revitalización urbana, en un contexto de creciente globalización y fractura social. En los años sesenta, antes de que se manifestara la crisis estructural de la década posterior, el arquitecto y paisajista Lawrence Halprin, junto con la bailarina y coreógrafa contemporánea Anna Halprin, desarrollaron una singular metodología interdisciplinar de investigación, denominada RSVP Cycles, con la que trataban de dar respuesta a la progresiva desestructuración y pérdida de sentido de la experiencia del espacio urbano. El acrónimo RSVP Cycles alude a un procedimiento crítico de diseño de espacios urbanos basado en el estudio exhaustivo de los recursos presentes en el lugar, seguido de la propuesta de partituras semejantes a las notaciones coreográficas cuya evaluación desemboca en intervenciones y performances con las que se busca la sensibilización y re-significación de la experiencia urbana.
El espacio hertziano: Site [lugar] común para el arte y la arquitectura contemporánea en la ciudad informacional
Authors: Navalon Blesa Natividad , Trujillo Ruiz David
Published: March 2021

El presente trabajo desarrolla la idea de que el arte y la arquitectura confluyen cuando hablamos del espacio hertziano en la ciudad contemporánea. Un espacio híbridoque interactúa con lo físico y virtual, influenciado por la inclusión de las tecnologías de información y comunicación digitales e inalámbricas.Éste se convierte en un site, un lugar de actuación común para ambas disciplinas. Un nuevoespacio [hertziano] más reflexivo, inteligente, adaptativo, en el que surgen cada vez más preguntas sobre su funcionamiento, sus contornos e influencias,sobre los peligros de estar hiperconectado, o sobre quiénes controlan los flujos de datos. En los últimos años, tanto arte como arquitectura, tratan de responderlas con intervenciones y actuaciones de característicasy resultados análogos, donde los límites entre disciplinas se diluyen.
Del capital urbano al capital humano: Vacío arquitectónico y espacio público como catalizadores de acción
Authors: Regina Vigiano Raffaella
Published: March 2021

Este artículo se pone como objetivo investigar aquellas experiencias artísticas que se declinan a partir de la arquitectura y de la acción artística. La una y la otra colaboran para crear espacios compartidos: la arquitectura en su dimensión mas diacrónica abre sus espacios para el acto artístico en su expresión más participativa. En este artículo analizaremos diferentes experiencias en las que la hibridación entre estas dos artes se hace más efectiva y crea sus frutos. Veremos cómo los espacios vacíos de las ciudades se abren al bien común; los fantasmas de una industrialización que llega a su ultima etapa proporciona terreno fértil para el desarrollo de nuevas soluciones artísticas. Aquí la creación se sirve de estructuras vacías que ya no son carcasas inutilizables si no lugares a rellenar de ideas y proyectos para uso de bien común y construcción desde abajo. Hablaremos de Macao, experimento socio-cultural de 2012 y de Base1 y la “Casa di Tutti” en Milán. Destacan así mismo, algunas obras e instalaciones del colectivo Artikistas, grupo heterogéneo nacido de la colaboración entre artistas y arquitectos en la ciudad de Bilbao. Estas experiencias vieron la luz entre junio de 2015 y principios de 2018. Los ejemplos servirán de referencia para explicar las formas de acercamiento de las dos disciplinas a problemas como: el vacío urbano resultado del abandono de edificios, la progresiva desaparición del espacio público y del bien común en favor de un interés creciente por la privatización de lugares, barrios e incluso ciudades enteras.
No construido(s): Potencial instituyente en dos proyectos integración arte/arquitectura con Jorge Oteiza
Authors: Arnaiz Gómez Ana , Laka Antxustegi Xabier
Published: March 2021

Pensados para la obra de arte que es la ciudad (moderna), algunos proyectos no construidos, sus imágenes, sostienen y representan (mejor que otros construidos) sus propósitos disciplinar y simbólico inseparables del imaginario de la época que los inventó y de la inadvertida continuidad de su potencial instituyente. Ya sean utópicos, visionarios o adelantados para su tiempo, podrían, sin embargo, construir la memoria de otra realidad alternativa (una ucronía) cuyo valor pedagógico sería una defensa ante la espectacularización de ciertas distopías urbanas contemporáneas.
„Biztonság, minőség, automatizálás – ezek a fő szempontok.” = Interjú Dr. Gönczy Sándorral , az Electrolux Magyarország ügyvezető igazgatójával
Authors: Trautmann László
Published: March 2021

Az Electrolux az elmúlt években jelentős beruházást hajtott végre Nyíregyházán. A technológiai fejlesztést egy konzekvens humánerőforrás stratégiába illesztették. Erről kérdezte a Köz-Gazdaság dr. Gönczy Sándort, az Electrolux Magyarország ügyvezető igazgatóját.
Changing the Market Position of Public Television – Case of Croatia, Slovenia and Hungary
Authors: Galetić Fran
Published: March 2021

The market position of public television channels has been changing over the last three decades. From monopolists, public televisions have become just one of the players on the television market. This paper analyses the position of public television in Croatia, Slovenia and Hungary. These neighbouring countries are similar but have different market power of public TV. Croatia has a strong public television, Hungary has very week public television, and Slovenia is in the middle. The aim of this paper is to show how the audience of public TV channels has been changing and based on this data, the author will estimate regression models for future forecasting of audience share for public TV channels in all three countries. This will enable the analysis of the market position of the whole group of public TV channels in each country.
Beszámoló a Berend T. Iván 90. születésnapja tiszteletére tartott online konferenciáról
Authors: Németh András Olivér
Published: March 2021

2020 decemberében 90. születésnapját ünnepelte Berend T. Iván, korunk egyik legnevesebb magyar társadalomtudósa, a Budapesti Corvinus Egyetem jogelődjének korábbi rektora. A közgazdász és történész végzettséggel is rendelkező professzor mintegy négy évtizeden át tanított egyetemünkön, 1964-től egyetemi tanári rangban. 1967-től 1986-ig vezette a Gazdaságtörténeti Tanszéket, közben 1973–1979 között az Egyetem rektora volt. 1985–1990 között a Magyar Tudományos Akadémia elnöki tisztségét töltötte be, majd 1990-ben az Egyesült Államokba költözött és 2015-ös nyugdíjba vonulásáig a Kaliforniai Egyetem (UCLA) professzora volt Los Angelesben. Rendkívül termékeny kutatói pályafutásának eredményeit számtalan magyar és angol nyelvű könyvben publikálta – és publikálja mind a mai napig. Nemzetközi elismertségét mutatja az is, hogy számos tudományos társaság választotta tagjai közé (az MTA mellett többek között a Brit Akadémia, az Osztrák Tudományos Akadémia és az Amerikai Művészeti és Tudományos Akadémia). 1986 és 1994 között a Nemzetközi Gazdaságtörténeti Társaság alelnöke, 1995 és 2000 között pedig a Nemzetközi Történeti Társaság elnöke volt.
Kilábalás a válságból és újjáépítés: az Amerikai Egyesült Államok helyzete az új évtized hajnalán
Authors: Gyuricza Petra Rebeka , Keményfi Gergely
Published: March 2021

Power, Samantha: “The Can-Do Power: America's Advantage and Biden's Chance.” (Foreign Affairs, January/February, 2021. Vol. 100. No. 1. p. 9.) Furman, Jason: “The Crisis Opportunity: What It Will Take to Build Back a Better Economy.” (Foreign Affairs, January/February, 2021. Vol. 100. No. 1. p. 24.) A két tanulmány a világhatalmi vezető szerepétől közelmúltban érezhetően eltántorodott Amerikai Egyesült Államok koronavírus-válsággal és megosztottsággal terhelt bel-, valamint ellentmondásokkal teli külpolitikájának lehetőségeit kísérli értelmezni a 2020-as elnökválasztás eredményének fényében. Recenziónk keretében megpróbáljuk felderíteni az összefüggéseket a Trump-adminisztráció hagyatéka és a Kínai Népköztársaság előretörése között, illetve mérlegeljük Joe Biden esélyeit: vajon hogyan állítható helyre az USA II. világháborút követő, új világrendet kialakítani képes tekintélye úgy, hogy közben a válság ne tegye tönkre az elmúlt évek gazdasági növekedését és az amerikai középosztály jólétét?
„Pénzügy és gazdasági fejlődés hosszú távon” Shin, Yongseok (2018): Finance and Economic Development on the Very Long Run: A Review Essay (Journal of Economic Literature, 56(4), 1557-1586.)1
Authors: Bajkán Domonkos
Published: March 2021

Yongseok Shin esszéjében Goetzmann Money Changes Everything: How Finance Made Civilizations Possible című könyvéről ír bemutatót, majd a könyv hipotézisét továbbgondolva vizsgálja, vajon az egyes pénzügyi találmányok hatást gyakorolnak-e a hosszú távú gazdasági fejlődésre. Shin Goetzmann művét további gazdaságtörténelmi elemzésekkel is összeveti. Arra a következtetésre jut, hogy a pénzügyek jelenléte fontos összetevő egy jól működő gazdaságban, azonban nem lehet az egyetlen fejlődést előidéző tényező. Shin a pénzügyi történelem további alapos tanulmányozását javasolja, és azt a jelenlegi pénzügyi szektor szabályozásainak kialakítása során is hasznosnak véli. Yongseok Shin reviews Goetzmann’s book, titled Money Changes Everything: How Finance Made Civilizations Possible. He reinterprets its main hypothesis, and analyses how the presence of financial tools affect economic development in the very long run. He also compares Goetzmann’s viewpoint to other economic historians’ results. He concludes that financial advancement is certainly one of the key factors leading to a prosperous economy, but cannot be the single one. Shin argues that financial history lessons might enable us to create more adequate financial regulations.
A KKV-k digitálisérettség-mérésének lehetőségei
Authors: Gubán Ákos , Sándor Ágnes
Published: March 2021

A digitális forradalom időszakában a cégek eredményességéhez elengedhetetlen a megfelelő informatikai háttér, illetve technológiai tudás, ahol a digitális átalakulás sikere függ a digitális érettségtől. Ennélfogva a tanulmány célja a digitális érettség definiálása, egy modell kialakításának elméleti megalapozása, keretrendszerének bemutatása, amely segítségül szolgál a kis- és középvállalkozások (KKV-k) számára, hogy felmérhessék, hol is tartanak a digitalizációban (mennyire fejlett a digitális erőforrásrendszere, digitális szemlélete), illetve, hogy gyorsabban és hatékonyabban tudjanak reagálni a környezeti változásokra. A létrehozott modell, a digitális érettség technikai architektúrája (DÉTA) az erőforrás-alapú elméletre (dinamikus képességek elmélete), az érettségi modellekre és a KKV-k vezetésével kapcsolatos vizsgálatokra épül. A kialakított modell egy dinamikus modell, melynek célja a menedzsment támogatása stratégiai, digitális és szervezeti fejlesztések során. A modell IT- és szervezeti dimenzióra bontható, amely hat főkomponenst és 28 alkomponenst tartalmaz. A tanulmány fő célja a komponenssúlyok meghatározása egy fuzzy modell megalkotásához.
Felhasználói tapasztalatok Emmával, a vásárlási asszisztens chatbottal
Authors: Harmat Vanda
Published: March 2021

A chatbotok alkalmazása egyre több területen sikeresnek bizonyul, köztük az e-kereskedelemben. A vállalatoknak az interaktív ágensek fejlesztésénél a funkcionalitás mellett figyelembe kell venniük a felhasználók chatbotokkal szembeni társas kapcsolat kialakítására irányuló igényét is, melynek a kielégítését elősegítő, illetve gátló tényezők az ember-chatbot interakcióval kapcsolatos felhasználói tapasztalatok vizsgálatával azonosíthatók. Jelen cikk célja Emmával, a vásárlási asszisztens chatbottal folytatott interakció felhasználói megéléseinek, illetve a felhasználók chatbotok felé irányuló társas kapcsolati igényének a kielégítését támogató, illetve gátló tényezők feltárása. A kutatás keretében 18 félig strukturált interjú készült, melyek elemzése induktív tartalomkódolással történt. A kutatás eredményeiből kiderült, hogy a felhasználók chatbotokkal szembeni társas kapcsolati igényének a kielégítését támogatta a chatbot udvarias viselkedése, a megismerését célzó alapvető személyes kérdésekre való válaszadási képessége, gátolták azonban a chatbot társas aktorként történő észlelését a repetitív, gépies válaszai, továbbá a felhasználók negatív érzéseire adott reakcióinak a hiánya.
A vezető szerepe a kis- és közepes vállalkozások sikerességében
Authors: Szanyi-Gyenes Xénia , Almási Anikó
Published: March 2021

A szerzők a magyarországi KKV-szektor sikerességének vizsgálatában a versenyképesség és a szervezeti identitás elméletekből indulnak ki, és a vállalati működésre, valamint a vezető szerepére koncentrálnak. Szekunder kutatások eredményeinek ilyen fókuszú szintetizálásával összegzik a hazai kis- és közepes vállalkozások versenyképesség jellemzőit a vezető aspektusából. Saját kutatásaik ezekre építve a percepció torzító hatására koncentráltak, illetve a nemzetköziesedésben aktív KKV-knál külön elemezték a vezetői hatásokat. Eredményeik azt mutatják, hogy a vezető direkt hatásán túl számos tényezőben indirekt hatás is kimutatható. Ennek oka, hogy a stratégiai irány megválasztása, a növekedési lehetőségek felismerése, a szükséges belső erőforrások menedzselése, a jövőképhez és célokhoz illeszkedő szervezeti struktúra kialakítása a KKV-szektorban a vezetői képességektől függ. A kutatás módszertani korlátaiból adódóan az eredmények nem általánosíthatók, érvényességük korlátozott, de alapot adnak a hazai kis- és közepes vállalkozások sikerességének megértéséhez, további kutatási irányokhoz.
Evaluation of Cosmetic Properties of Natural Ingredients in the Trás-os-Montes area: a PhD Project
Authors: Gonçalves Sara , Gaivão Isabel
Published: March 2021

The term cosmetics refers to a product applied to the body for the purpose of beautifying, cleansing or improving appearance and enhancing attractive features. The natural cosmetics market has grown since the consumer took consciousness of the concept of natural-based ingredients. A great number of cosmetics have noxious and chemically-potent substances and have an ecological impact on the environment. A study performed by the Danish Council THINK Chemicalsfound that in total 65 chemicals of concern were found in 39 products. This means consumers are exposed to these chemicals, perhaps in a daily basis. They also found that three products contained illegal ingredients in the European Union. Thus, the use of natural and organic cosmetics becomes increasingly important. This requires a strong investigation into the benefits that fruits and plants can bring to health. The PhD project will focus on four natural ingredients common in the Trás-os-Montes area: almond (Prunus dulcis), elderberry (Sambucus nigra), olive (Olea europaea) and grapes (Vitis vinifera). The general purpose of this PhD project is to evaluate the cosmetic properties of the natural ingredients towards the DNA integrity promotion. Additionally, it is intended to evaluate genoprotection, longevity and prolificacy of the natural ingredients in Drosophila melanogaster. The short life cycle, the distinct developmental stages, the availability of various tools and reagents, known genome sequence and the physiological similarity of Drosophila with humans make them an excellent in vivo model organism to rapidly test toxicity in whole organism and elucidate the molecular mechanisms underlying the toxicity. The natural product with the best result will be used to evaluate genoprotection in human lymphocytes. These are used as a surrogate tissue, as they are easily obtained, in large numbers, do not require cell culture, are diploids and are almost all in the same phase of the cell cycle. This project is in an initial phase and lacks results, which will be available along this year.
Gott vor dem Sein. Ansätze einer „Proontologie“ bei Johannes von Skythopolis, Maximus Confessor und Meister Eckhart
Authors: Muller Fabien
Published: March 2021

The present article focuses on the idea that divine nature is prior to being. This idea was first articulated in John of Scythopolis’s commentary on Pseudo-Dionysius. It was adopted by Maximus Confessor and re-used in Meister Eckhart’s first Quaestio Parisiensis. The main tenant of this idea is that, if God is the origin of being, he must be more fundamental than being. Thus, being cannot be identical to divine nature. The conclusion that can be drawn from the discussion of this idea is that the importance that has been traditionally attached to the „Exodusmetaphysik“ must be reconsidered, and that the pre-ontological conception of divine nature consistutes an autonomous tradition in Christian thought.
El puente de los Vientos. Una pedagogía de la presencia
Authors: Monsalve Sofía
Published: March 2021

El artículo es una descripción y análisis del trabajo realizado por Iben Nagel Rasmussen, actriz del Odin Teatret desde 1966, y sus alumnos del Puente de los Vientos, durante más de 30 años alrededor del entrenamiento del actor y su trabajo con la energía y la presencia. En él se entrelaza la voz de la alumna con la voz de la maestra en un diálogo que busca, con palabras, dar la idea de la experiencia del Puente de los Vientos como grupo de investigación sobre el actor, en su búsqueda por la presencia.
La fiesta en cuarentena
Authors: González Pérez Marcos
Published: March 2021

La cuarentena impuesta por el gobierno central e Colombia buscando ganar tiempos para dotar al sistema de salud de mejores condiciones de atención, arrastró también a la fiesta. Este ensayo intenta explicar la relación de lo social con lo cultural a través de la comprensión del hecho de quela fiesta vive y no puede ser objeto de censuras para su realización. Para preservar lo patrimonial se pueden cambiar las formas de manifestación de lo festivo, aprovechando la socialización a través de lo virtual, pero sin modificar fechas, objetos y lugares celebrados. En ese sentido, este escrito también es una reflexión sobre el papel de los rituales en la cohesión de las comunidades y muestra todoel panorama de la defensa de la vida y de la naturaleza, siguiendo el rastro de las fiestas de la naturaleza, sin descuidar los análisis sobre las violencias contra los defensores de lo ambiental.
Al compás sensual que marca tu cintura. Otras formas de apropiación desde la experiencia de vida
Authors: Marchionda Vargas Oswaldo
Published: March 2021

Es una reflexión sobre la posibilidad de constituirnos a partir de una cosmovisión diferente a la instituidapor la modernidad. Expone al colonialismo y la colonialidad, estructurados como patrones socializadores heredados y asumidos como única forma de existencia para todos los ámbitos humanos; aquí en particular examinamos la danza. Propone una caracterización de “lo propio” a partir del lugar de enunciación como ámbito que proporciona elementos de comprensión del “territorio” como horizonte metafórico, desde su doble condición de confluencia: del lugar de donde uno viene y el lugar donde uno está. Avanza hacia modos de apropiación vinculados a la posibilidad de “in-corporar”, como un traer o hacer en el cuerpo. Dicho sentido de pertenencia es constituido por el cuestionamiento de la percepción de “la tradición” y “la contemporaneidad.