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  1. Article ; Online: Interfering with sleep apnea.

    Pedersen, Nigel Paul / Astorga, Raul Castillo

    Bioelectronic medicine

    2024  Volume 10, Issue 1, Page(s) 5

    Abstract: The effects of electromagnetic interference have been hiding in plain sight for millennia and are now being applied to the non-invasive stimulation of deep tissues. In the article by Missey et al., the effect of non-invasive stimulation of the ... ...

    Abstract The effects of electromagnetic interference have been hiding in plain sight for millennia and are now being applied to the non-invasive stimulation of deep tissues. In the article by Missey et al., the effect of non-invasive stimulation of the hypoglossal nerve by an interference envelope of interfering carrier waves is examined in mice and participants with sleep apnea. This stimulation is capable of activating the nerve and reducing apnea-hypopnea events. Temporally interfering electric fields have potential applications far beyond hypoglossal stimulation and may represent a revolutionary new approach to treating illness and understanding the functional organization of the nervous system.
    Language English
    Publishing date 2024-01-24
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 2929561-0
    ISSN 2332-8886 ; 2332-8886
    ISSN (online) 2332-8886
    ISSN 2332-8886
    DOI 10.1186/s42234-023-00139-w
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  2. Article: Should I stay or should I go? The effect of London's terrorist attack on the educational choices of Muslims.

    Astorga-Rojas, Diego

    SERIEs : journal of the Spanish Economic Association

    2023  Volume 14, Issue 3-4, Page(s) 463–501

    Abstract: This paper evaluates how the July 2005 London terrorist attacks affected Muslim teenagers' education plans and decisions. The attacks triggered a violent backslash against the Muslim community, which could have affected their incentives to continue in ... ...

    Abstract This paper evaluates how the July 2005 London terrorist attacks affected Muslim teenagers' education plans and decisions. The attacks triggered a violent backslash against the Muslim community, which could have affected their incentives to continue in full-time education. I examine panel data on educational attitudes from the "Next Steps" Survey in England and use the month the survey was administered to divide individuals into treatment and control groups. I find that the attacks negatively affected the education plans of Muslims, but not those of any other major religious group. The probability of planning to continue in non-compulsory full-time education decreased by around 4.4% points for Muslims after the attacks. This corresponds to a 69% increase in individuals who were not sure whether to continue or drop out of full-time education. However, this change in plans appears to be a temporary reaction, since it did not affect students' actual decisions two years later.
    Language English
    Publishing date 2023-06-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2536381-5
    ISSN 1869-4195 ; 1869-4187
    ISSN (online) 1869-4195
    ISSN 1869-4187
    DOI 10.1007/s13209-023-00282-2
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  3. Book ; Online: Access to Markets and Technology Adoption in the Agricultural Sector

    Astorga-Rojas, Diego

    Evidence from Brazil

    2024  

    Abstract: This paper studies how better market access through infrastructure improvements leads to the adoption of new agricultural technologies. In particular, I study the case of Brazil, and how the construction of the federal highway network from 1950 to 2000 ... ...

    Abstract This paper studies how better market access through infrastructure improvements leads to the adoption of new agricultural technologies. In particular, I study the case of Brazil, and how the construction of the federal highway network from 1950 to 2000 affected the modernization of the agricultural sector. To address endogeneity concerns, I use the creation of Brasilia, and the project to connect it to the state capitals, as a natural experiment. I build a predicted network of highways by computing the cheapest way to connect the state capitals with Brasilia and use it to instrument market access. I find that municipalities where market access increased adopted new agricultural inputs such as fertilizers and pesticides, improving agricultural productivity as a result. Market access also increased the machinery and equipment used for production, but only when Brazil deregulated its agricultural markets and opened to international trade, after 1990.
    Keywords ddc:330 ; O13 ; O18 ; F14 ; agricultural productivity ; infrastructure ; market access ; mechanization
    Subject code 381
    Language English
    Publisher Kiel, Hamburg: ZBW - Leibniz Information Centre for Economics
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Pressure Distribution Inside Nucleons in a Tsallis-MIT Bag Model.

    Matías Astorga, Manuel A / Herrera Corral, Gerardo

    Entropy (Basel, Switzerland)

    2024  Volume 26, Issue 3

    Abstract: We present a phenomenological framework based on the MIT bag model to estimate the pressure experienced by quarks and gluons inside nucleons. This is accomplished by implementing non-extensive Tsallis statistics for the two-component system. In this ... ...

    Abstract We present a phenomenological framework based on the MIT bag model to estimate the pressure experienced by quarks and gluons inside nucleons. This is accomplished by implementing non-extensive Tsallis statistics for the two-component system. In this model of hadrons, the strong interaction generates correlations effectively described by the q-Tsallis parameter. The resulting hadron pressure exhibits general agreement with recent calculations derived from Lattice QCD. Additionally, we compared this pressure with data extracted from deep virtual Compton scattering experiments and gravitational form factor analyses. The extended bag model provides an alternative interpretation of bag pressure in terms of the q-Tsallis parameter. Consequently, the MIT bag model can be expressed without requiring the inclusion of the bag pressure parameter.
    Language English
    Publishing date 2024-02-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e26030183
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  5. Article ; Online: Presentación

    Omar Astorga

    Araucaria, Vol 22, Iss 43, Pp 217-

    Octavio Paz

    2020  Volume 224

    Keywords History of scholarship and learning. The humanities ; AZ20-999 ; Political science ; J ; Philosophy (General) ; B1-5802
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher Universidad de Sevilla
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: In Favor of Logical Form

    López-Astorga Miguel

    Studies in Logic, Grammar and Rhetoric, Vol 67, Iss 1, Pp 45-

    2022  Volume 58

    Abstract: ... However, here, following arguments provided by López-Astorga, I try to show that the theory of mental models ... such as that of López-Astorga. However, the present work proposes otherwise. ...

    Abstract This paper is intended to address the work “Against logical form”, authored by Johnson-Laird in 2010. In it, based on the theory of mental models, Johnson-Laird claims that the way people interpret sentences in natural language has nothing to do with logic. This is because that action is not related to logical forms. According to him, the mental activity is mainly linked to semantics and pragmatics. However, here, following arguments provided by López-Astorga, I try to show that the theory of mental models can be linked to syntactic structures. My main point is made by dealing with an argument given in the mentioned Johnson-Laird’s paper. In principle, that argument seems to undermine proposals such as that of López-Astorga. However, the present work proposes otherwise.
    Keywords logical form ; mental models ; pragmatics ; semantics ; syntax ; History of scholarship and learning. The humanities ; AZ20-999
    Language English
    Publishing date 2022-12-01T00:00:00Z
    Publisher Sciendo
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Fourteen modal theorems consistent with the theory of mental models

    Miguel López-Astorga

    Prometeica, Iss

    2022  Volume 25

    Abstract: Very important concepts in the theory of mental models are those of ‘possibility’ and ‘necessity’. Based on the definitions this psychology theory gives for those concepts, it has been shown that it complies with the requirement Fitting and Mendelsonh ... ...

    Abstract Very important concepts in the theory of mental models are those of ‘possibility’ and ‘necessity’. Based on the definitions this psychology theory gives for those concepts, it has been shown that it complies with the requirement Fitting and Mendelsonh provides in general for modal logic. That requirement consists of being coherent with the modal interpretation of the square of opposition presented by Aristotle. This paper tries to move forward in this direction. It analyzes fourteen modal theorems indicated by Carnap under the approach of the theory of mental models. The results reveal that the theory is also compatible with those theorems.
    Keywords conjunction ; mental model ; modal logic ; necessity ; possibility ; Philosophy (General) ; B1-5802 ; Science ; Q ; Social sciences (General) ; H1-99
    Language English
    Publishing date 2022-09-01T00:00:00Z
    Publisher Universidade Federal de São Paulo
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Revisiting food insecurity gender disparity.

    Silva, Andres / Astorga, Andres / Faundez, Rodrigo / Santos, Karla

    PloS one

    2023  Volume 18, Issue 8, Page(s) e0287593

    Abstract: Previous research has shown that woman-headed households, more than man-headed ones, experience food insecurity. The purpose of this article is to contribute on the determinants that are linked to this gender disparity. Using a nationally representative ... ...

    Abstract Previous research has shown that woman-headed households, more than man-headed ones, experience food insecurity. The purpose of this article is to contribute on the determinants that are linked to this gender disparity. Using a nationally representative dataset from Chile, we found that food security household head gender disparity is associated with marital status (having or not a partner) and household composition (having children or seniors). In contrast, gender disparity is not strongly associated with household income and household head educational differences. In this way, we expect to bring evidence to inform new alternatives that help mitigate food security gender disparity.
    MeSH term(s) Male ; Child ; Female ; Humans ; Socioeconomic Factors ; Food Supply ; Surveys and Questionnaires ; Family Characteristics ; Food Insecurity
    Language English
    Publishing date 2023-08-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0287593
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  9. Article ; Online: Clinical and demographic factors associated with the effectiveness of temporomandibular joint arthroscopy.

    Gaete, Carlos / Droguett, Christian / Sáez, Felipe / Astorga, Paula

    Oral and maxillofacial surgery

    2023  Volume 28, Issue 1, Page(s) 405–411

    Abstract: Purpose: High success rates and minimal complications have consolidated arthroscopy as the therapeutic alternative of choice for minimally invasive treatment of internal disorders (ID) of the temporomandibular joint (TMJ). However, there is no certainty ...

    Abstract Purpose: High success rates and minimal complications have consolidated arthroscopy as the therapeutic alternative of choice for minimally invasive treatment of internal disorders (ID) of the temporomandibular joint (TMJ). However, there is no certainty regarding the demographic and clinical factors associated with the technique's success or failure. This study was performed to analyze the effectiveness of arthroscopy regarding pain and the mandibular dynamics and also to determine whether variables such as age, sex, and preoperative Wilkes stage influence the results.
    Methods: A retrospective study was conducted involving 92 patients with ID of the TMJ between September 2017 and February 2020. In all cases, a first stage of intra-articular lysis and lavage was executed. As needed, a phase of operative arthroscopy or arthroscopic discopexy was implemented.
    Results: A total of 152 arthroscopies were performed. Both the variation in pain and mouth opening in patients with ID of the TMJ treated were statistically significant for the follow-up periods studied. Better results were observed for patients with lower Wilkes stages. No association with age was found.
    Conclusion: Based on the results, we recommend early intervention as soon as an ID in the TMJ is detected.
    MeSH term(s) Humans ; Arthroscopy/methods ; Temporomandibular Joint Disorders/surgery ; Retrospective Studies ; Treatment Outcome ; Temporomandibular Joint/surgery ; Pain ; Range of Motion, Articular ; Demography ; Joint Dislocations/surgery
    Language English
    Publishing date 2023-05-24
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2406731-3
    ISSN 1865-1569 ; 1865-1550
    ISSN (online) 1865-1569
    ISSN 1865-1550
    DOI 10.1007/s10006-023-01158-2
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  10. Article ; Online: The Torsional Response of Civil Engineering Structures during Earthquake from an Observational Point of View.

    Guéguen, Philippe / Astorga, Ariana

    Sensors (Basel, Switzerland)

    2021  Volume 21, Issue 2

    Abstract: This paper discusses the origins of torsion and its effect on the response of structures with a focus on the contribution of experimental data. The fact that torsion increases the stresses in structures, augmenting strain and damage during earthquakes, ... ...

    Abstract This paper discusses the origins of torsion and its effect on the response of structures with a focus on the contribution of experimental data. The fact that torsion increases the stresses in structures, augmenting strain and damage during earthquakes, was confirmed in the 1960s. Over the years, the torsional response of structures has mainly been analysed through numerical studies, because few buildings are equipped with translational sensors, and even fewer are equipped with rotational sensors. This is likely to change as building instrumentation becomes more widespread and new generations of rotational sensors are developed. Therefore, this paper focusses on a number of scientific questions concerning the rotational response of structures during earthquakes and the contribution of experimental data to the understanding of this phenomenon.
    Language English
    Publishing date 2021-01-06
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s21020342
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