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Article ; Online: Is pancreatic steatosis a common finding in the Chilean population?

Saavedra, J / Seguil, Y

Revista de gastroenterologia de Mexico (English)

2024

Language	English
Publishing date	2024-04-26
Publishing country	Mexico
Document type	Letter
ZDB-ID	2828765-4
ISSN	2255-534X ; 2255-534X
ISSN (online)	2255-534X
ISSN	2255-534X
DOI	10.1016/j.rgmxen.2024.01.002
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Article ; Online: Thermal Sensor Allocation for Effective and Efficient Heat Transfer Measurements in Transportation Systems.

Saavedra, Jorge / Gonzalez Cuadrado, David

Sensors (Basel, Switzerland)

2023 Volume 23, Issue 5

Abstract: Power plants, electric generators, high-frequency controllers, battery storage, and control units are essential in current transportation and energy distribution networks. To improve the performance and guarantee the endurance of such systems, it is ... ...

Abstract	Power plants, electric generators, high-frequency controllers, battery storage, and control units are essential in current transportation and energy distribution networks. To improve the performance and guarantee the endurance of such systems, it is critical to control their operational temperature within certain regimes. Under standard working conditions, those elements become heat sources either during their entire operational envelope or during given phases of it. Consequently, in order to maintain a reasonable working temperature, active cooling is required. The refrigeration may consist of the activation of internal cooling systems relying on fluid circulation or air suction and circulation pulled from the environment. However, in both scenarios pulling surrounding air or making use of coolant pumps increases the power demand. The augmented power demand has a direct impact on the power plant or electric generator autonomy, while instigating higher power demand and substandard performance from the power electronics and batteries' compounds. In this manuscript, we present a methodology to efficiently estimate the heat flux load generated by internal heat sources. By accurately and inexpensively computing the heat flux, it is possible to identify the coolant requirements to optimize the use of the available resources. Based on local thermal measurements fed into a Kriging interpolator, we can accurately compute the heat flux minimizing the number of sensors required. Considering the need for effective thermal load description toward efficient cooling scheduling. This manuscript presents a procedure based on temperature distribution reconstruction via a Kriging interpolator to monitor the surface temperature using a minimal number of sensors. The sensors are allocated by means of a global optimization that minimizes the reconstruction error. The surface temperature distribution is then fed into a heat conduction solver that processes the heat flux of the proposed casing, providing an affordable and efficient way of controlling the thermal load. Conjugate URANS simulations are used to simulate the performance of an aluminum casing and demonstrate the effectiveness of the proposed method.
Language	English
Publishing date	2023-03-03
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2052857-7
ISSN	1424-8220 ; 1424-8220
ISSN (online)	1424-8220
ISSN	1424-8220
DOI	10.3390/s23052803
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Article ; Online: Translating critical reflection into collective action: The mediating role of Asian American racial identity ideological values.

Saavedra, J Abigail / Yoo, Hyung Chol

American journal of community psychology

2023 Volume 72, Issue 1-2, Page(s) 60–74

Abstract: Throughout U.S. history, Asian Americans engaged in various forms of collective action to challenge systems of oppression. Despite this, few studies challenge the stereotype that Asian Americans are apolitical and uninterested in collective action and ... ...

Abstract	Throughout U.S. history, Asian Americans engaged in various forms of collective action to challenge systems of oppression. Despite this, few studies challenge the stereotype that Asian Americans are apolitical and uninterested in collective action and focus on psychological correlates of Asian Americans' collective action. Collective action may be motivated by critical reflection on racism and inequality, which may induce shifts in racial identity ideological values that lead Asian Americans to align with minoritized groups. The current study examines whether Asian American racial identity ideological values-specifically, Asian American Unity, Interracial Solidarity, and Transnational Critical Consciousness-help explain why critical reflection is linked to collective action among Asian Americans. Multiple mediation analyses suggested that, among Asian American college students in the Southwest United States (N = 272), beliefs about Interracial Solidarity and Asian American Unity mediated the relationship between critical reflection (i.e., Critical Reflection on Racism and Perceived Inequality) and collective action (i.e., Support for Black Lives Matter and Sociopolitical Participation). Transnational Critical Consciousness did not mediate the relationship between critical reflection and collective action. This study highlights how Asian American unity and interracial solidarity beliefs underlie Asian Americans' critical reflection and collective action.
MeSH term(s)	Humans ; Asian ; Racism/psychology ; Racial Groups ; Stereotyping
Language	English
Publishing date	2023-05-18
Publishing country	England
Document type	Journal Article
ZDB-ID	222658-3
ISSN	1573-2770 ; 0091-0562
ISSN (online)	1573-2770
ISSN	0091-0562
DOI	10.1002/ajcp.12681
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Zs.A 1176: Show issues

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Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Psychosocial and vocational impact of an internship program for people diagnosed with severe mental illnesses.

Saavedra, Javier / González, Sergio / Murvartian, Lara / Arias-Sánchez, Samuel

Disability and rehabilitation

2024 , Page(s) 1–9

Abstract: Purpose: Unemployment is an obstacle in recovery for people with severe mental illnesses (SMI), both in reducing psychopathological symptoms and in achieving a high quality of life. The aim of this study was to explore the impact of an internship ... ...

Abstract	Purpose: Unemployment is an obstacle in recovery for people with severe mental illnesses (SMI), both in reducing psychopathological symptoms and in achieving a high quality of life. The aim of this study was to explore the impact of an internship program for people diagnosed with SMI on psychosocial variables using a pre-test and post-test design. Method: Four scales were administered to a sample of 127 study participants, all of whom were diagnosed with SMI. The results of standard and sheltered employment outcomes were obtained by comparing the number and type of contracts gained by participants up to one year after program completion. A repeated measures ANOVA analysis was carried out with intervention being an independent intra-subject variable and type of participant diagnosis being a between-subjects variable. Results: A limited increase in social functioning was found, as well as a significant decrease in psychiatric distress for users diagnosed with personality disorders. Participants in the internship program obtained a greater number of employment contracts than their peers who did not participate in the program, albeit with a low effect size. Conclusions: Though results were positive, extension of internship length and provision of more intensive counselling for participants may be useful.
Language	English
Publishing date	2024-02-27
Publishing country	England
Document type	Journal Article
ZDB-ID	1104775-6
ISSN	1464-5165 ; 0963-8288
ISSN (online)	1464-5165
ISSN	0963-8288
DOI	10.1080/09638288.2024.2319725
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Zs.A 1569: Show issues

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Article ; Online: Youth civic development amid the pandemic.

Wilf, Sara / Wray-Lake, Laura / Saavedra, J Abigail

Current opinion in psychology

2023 Volume 52, Page(s) 101627

Abstract: During the COVID-19 pandemic, youth experienced abrupt closures of in-person spaces that were vital for their civic development, like schools and community organizations. Social media became the primary context for youth to make their voices heard and ... ...

Abstract	During the COVID-19 pandemic, youth experienced abrupt closures of in-person spaces that were vital for their civic development, like schools and community organizations. Social media became the primary context for youth to make their voices heard and mobilize around important sociopolitical issues like anti-Asian racism, police violence, and elections. However, youth experienced civic development in different ways during the pandemic. Some youth gained a critical awareness of societal inequities, while others were radicalized into far-right ideologies. Racially minoritized youth experienced vicarious trauma and racism while civically engaging in 2020, and their civic development must be viewed in the context of the dual pandemics of COVID-19 and structural racism.
MeSH term(s)	Humans ; Adolescent ; Pandemics ; COVID-19 ; Adolescent Behavior ; Adolescent Development ; Politics
Language	English
Publishing date	2023-06-09
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	2831565-0
ISSN	2352-2518 ; 2352-250X ; 2352-250X
ISSN (online)	2352-2518 ; 2352-250X
ISSN	2352-250X
DOI	10.1016/j.copsyc.2023.101627
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Article ; Online: Evaluation of saliva as a complementary technique to the diagnosis of COVID-19: a systematic review.

Sagredo-Olivares, K / Morales-Gómez, C / Aitken-Saavedra, J

Medicina oral, patologia oral y cirugia bucal

2021 Volume 26, Issue 4, Page(s) e526–e532

Abstract: Background: Infectious disease coronavirus 2019 (COVID-19) is caused by the SARS-CoV-2 virus, and it mainly affects the upper respiratory tract. The gold standard for its diagnosis is real-time reverse transcription polymerase chain reaction (RT-qPCR) ... ...

Abstract	Background: Infectious disease coronavirus 2019 (COVID-19) is caused by the SARS-CoV-2 virus, and it mainly affects the upper respiratory tract. The gold standard for its diagnosis is real-time reverse transcription polymerase chain reaction (RT-qPCR) performed on a nasopharyngeal swab. In contrast, testing saliva has significant advantages as a diagnostic method. Material and methods: We searched for articles evaluating saliva as a diagnostic method for COVID-19 on the PUBMED/MEDLINE, WEB OF SCIENCE, COCHRANE, and SCIELO platforms. We initially found 233 articles and 20 were selected for inclusion following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol: 18 cross-sectional studies and 2 case reports, including 8 from America, 8 from Asia, and 4 from Europe. The studies evaluated the presence of viral RNA, IgG, IgM, and IgA in samples of unstimulated saliva from adults with confirmed or suspected COVID-19. The vast majority of the studies performed RT-qPCR on the saliva samples and compared the results with the gold standard (a nasopharyngeal swab of the same patient). Results: Saliva samples analyzed by RT-qPCR, reverse transcription isothermal amplification (RT-LAMP), spectroscopy, and enzyme-linked immunosorbent assay (ELISA) offer high sensitivity to detect SARS-CoV-2 in the early stages of the disease and among asymptomatic patients as compared to nasopharyngeal swab RT-qPCR. In addition, the self-collection of saliva offers the possibility of receiving telemedicine instructions to carry out the test, reducing the risk of contagion. Conclusions: The diagnosis of COVID-19 through saliva is sensitive, non-invasive, and is of low risk for the healthcare professionals. However, further studies are recommended to validate its clinical use.
MeSH term(s)	Adult ; Asia ; COVID-19 ; Cross-Sectional Studies ; Europe ; Humans ; Molecular Diagnostic Techniques ; Nucleic Acid Amplification Techniques ; SARS-CoV-2 ; Saliva ; Sensitivity and Specificity
Language	English
Publishing date	2021-07-01
Publishing country	Spain
Document type	Journal Article ; Systematic Review
ZDB-ID	2171573-7
ISSN	1698-6946 ; 1698-4447
ISSN (online)	1698-6946
ISSN	1698-4447
DOI	10.4317/medoral.24424
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Zs.A 5809: Show issues

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Article ; Online: Hypovitaminosis D, oral potentially malignant disorders, and oral squamous cell carcinoma: a systematic review.

Maturana-Ramírez, A / Aitken-Saavedra, J / Guevara-Benítez, A-L / Espinoza-Santander, I

Medicina oral, patologia oral y cirugia bucal

2022 Volume 27, Issue 2, Page(s) e135–e141

Abstract: Background: Oral squamous cell carcinoma (OSCC) and potentially malignant oral disorders (OPMDs) could be associated with low levels of vitamin D. This systematic review aimed to determine the relationship between serum levels of vitamin D with OPMDs ... ...

Abstract	Background: Oral squamous cell carcinoma (OSCC) and potentially malignant oral disorders (OPMDs) could be associated with low levels of vitamin D. This systematic review aimed to determine the relationship between serum levels of vitamin D with OPMDs and OSCC. Material and methods: This review was conducted according to Cochrane guidelines (PROSPERO CRD42020207382) on literature retrieved from the PubMed, Cochrane, and Web of Science databases. The antecedents extracted were study design, methodology, sample (country, number of patients, age, and sex), oral manifestations (type of lesion, location, prevalence, and follow-up), serum vitamin D levels or use of vitamin D supplements, results, and conclusions. Results: Twelve articles were selected. Some of the most relevant findings were alterations in vitamin D could favor the progress of OPMDs to OSCC. Higher levels of vitamin D can increase levels of anti-inflammatory mediators, CD4+ T lymphocytes and CD8+ T lymphocytes and CD3+ T lymphocytes in intratumoral tissue. The normalization of vitamin D levels in patients with OSCC can increased cytotoxic activity of natural killer cells, favoring antitumor immune response. Vitamin D supplemented can lower adverse effects associated with chemotherapy like mucositis and pain. Tobacco can increase risk of developing OSCC altering vitamin D levels. Conclusions: Hypovitaminosis D could increase risk of developing OSCC from OPMDs, thus altering the immune response and it is associated with a lower survival rate in patients with OSCC, a greater recurrence of tumors in patients who underwent surgical treatment, and an increase in adverse reactions to chemotherapy. The use of vitamin D supplements can be a complement to primary therapy to prevent the recurrence of lesions and reduce adverse events associated with treatment.
MeSH term(s)	Carcinoma, Squamous Cell/etiology ; Carcinoma, Squamous Cell/pathology ; Head and Neck Neoplasms ; Humans ; Mouth Neoplasms/etiology ; Mouth Neoplasms/pathology ; Squamous Cell Carcinoma of Head and Neck ; Vitamin D Deficiency/complications
Language	English
Publishing date	2022-03-01
Publishing country	Spain
Document type	Journal Article ; Systematic Review
ZDB-ID	2171573-7
ISSN	1698-6946 ; 1698-4447
ISSN (online)	1698-6946
ISSN	1698-4447
DOI	10.4317/medoral.25049
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Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

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Book: Tumors of the gallbladder, extrahepatic bile ducts, and vaterian system

Albores-Saavedra, Jorge / Henson, Donald Earl / Klimstra, David S.

(Atlas of tumor pathology : Ser. 4, 23 ; Ser. 4, 23)

2015

Author's details	by Jorge Albores-Saavedra, Donald Earl Henson,David S. Klimstra
Series title	Atlas of tumor pathology : Ser. 4, 23 ; Ser. 4, 23 AFIP atlas of tumor pathology Atlas of tumor pathology ; Ser. 4, 23
Collection	AFIP atlas of tumor pathology Atlas of tumor pathology ; Ser. 4, 23
Language	English
Size	XIX, 614 S. : zahlr. Ill.
Publisher	American Registry of Pathology
Publishing place	Silver Spring, Maryland
Publishing country	United States
Document type	Book
HBZ-ID	HT019144191
ISBN	1-933477-34-2 ; 978-1-933477-34-3
Database	Catalogue ZB MED Medicine, Health

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Shelf mark	Loan status	Location
Se 1357 -4,23-	verfügbar in Königswinter	Königswinter

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Article: Combined effect of seawater and load on methacrylate adhesive.

Rodríguez-Dopico, Francisco J / Carbas, R J C / Borges, Catarina S P / Tarrío-Saavedra, J / da Silva, L F M / García, A Álvarez

Heliyon

2023 Volume 9, Issue 4, Page(s) e14751

Abstract: Although the shipbuilding industry is constantly demanding new advanced joining solutions, adhesive technology is not as developed in the marine as compared to other industries. The main reason is the lack of specific knowledge that guarantees the ... ...

Abstract	Although the shipbuilding industry is constantly demanding new advanced joining solutions, adhesive technology is not as developed in the marine as compared to other industries. The main reason is the lack of specific knowledge that guarantees the durability of the bonded joints in optimal conditions during the life cycle of a ship. This work simulates in the laboratory a marine-like environment by immersing an adhesive in seawater and subjecting it to constant loading. The objective is to characterize the seawater absorption behavior and its consequences on the mechanical, thermal, and chemical properties of the adhesive after this aging process. Seawater ingress was determined through gravimetric tests at several load conditions of the tensile strength of the adhesive. Besides, absorption process was studied using Fick's Law, determining the diffusion coefficients. The thermal behavior was monitored with differential scanning calorimetry (DSC) and the chemical degradation was analyzed using Fourier transform infrared spectroscopy (FTIR). Also, the mechanical properties were determined by tensile tests. The surface of the adhesive (dried) was studied by Scanning Electron Microscopy (SEM) technique and the porosity was measured by physisorption with a high-performance adsorption analyzer. A numerical simulation was developed using Darcy's Law combined with continuity equation. The results show that application of loads and immersion in seawater until full saturation of seawater improve the mechanical properties of the adhesive, but it affects negatively to the glass transition temperature. This should be considered when designing adhesive bonding joints on ships.
Language	English
Publishing date	2023-03-22
Publishing country	England
Document type	Journal Article
ZDB-ID	2835763-2
ISSN	2405-8440
ISSN	2405-8440
DOI	10.1016/j.heliyon.2023.e14751
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Article: Rethinking fiscal rules.

Carranza-Ugarte, Luis / Díaz-Saavedra, Julián / Galdon-Sanchez, Jose Enrique

Journal of comparative economics

2023

Abstract: The Covid 19 pandemic has caused both a decrease in tax revenues and an increase in public spending, forcing governments to increase fiscal deficits to unprecedented levels. Given these circumstances, it is foreseeable that fiscal rules will play a ... ...

Abstract	The Covid 19 pandemic has caused both a decrease in tax revenues and an increase in public spending, forcing governments to increase fiscal deficits to unprecedented levels. Given these circumstances, it is foreseeable that fiscal rules will play a predominant role in the design of many countries' recovery policies. We develop a general equilibrium, overlapping generations model for a small, open economy in order to study the impact of several fiscal rules upon welfare, public expenditures and growth. We calibrate the model to the Peruvian economy. In this economy, fiscal rules have been widely used and, unlike in other Latin American countries, they have been relatively successful. We find that fiscal rules will generate better results in terms of output if, in addition to maintaining control over the fiscal result, they also preserve public investment. We also find that the performance of economies that implement structural rules tends to be better than the performance of economies that implement rules based on realized budget balance.
Language	English
Publishing date	2023-03-10
Publishing country	United States
Document type	Journal Article
ISSN	0147-5967
ISSN	0147-5967
DOI	10.1016/j.jce.2023.02.005
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