cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Assessment of reconstruction accuracy for under-sampled 31P-MRS data using compressed sensing and a low-rank Hankel matrix completion approach
Creators: name: García Quijano, Jossian Abimelec
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: MEDICINA Y CIENCIAS DE LA SALUD::CIENCIAS MÉDICAS::OTRAS ESPECIALIDADES MÉDICAS::OTRAS
subject: Medicine
subject: Technology
subject: 31P-MRS
subject: CS
subject: MRS
subject: Low-Rank
subject: Truncation
subject: RMSE
subject: Error
subject: Hankel

description: https://orcid.org/0000-0001-5235-7325
description: Phosphorus magnetic resonance spectroscopy and spectroscopic imaging (31P-MRS/MRSI) are techniques to evaluate energy metabolism in vivo, they are capable of measuring metabolites such as phosphocreatine and inorganic phosphate in muscle and brain tissue. Despite their capability, these techniques are not very often used in clinical settings due to the long acquisition times required. In recent years, compressed sensing has been widely used as an acceleration method for MRI signal acquisition and translated to MRS. In order to use it, one of the main criteria states that the aliasing resulting from the undersampling scheme must be incoherent, which is achieved using a pseudo-random sampling strategy. However, when a set of pseudo-random patterns are applied for the same acceleration factor, there is significant variability in the quality of the reconstructed signal. We present an evaluation of the influence of the under-sampling pattern in the quality of the signal reconstruction through a series of experiments in 31P-MRS data using the Low-rank Hankel matrix completion as the reconstruction method. Our results demonstrate that the reconstruction accuracy is heavily influenced by the selection of specific samples rather than the undersampling factor. Furthermore, the noise level in the signal has a more pronounced impact on reconstruction quality. Additionally, reconstruction accuracy is significantly correlated with the density of samples collected at early times, making it possible to set large time values to zero without producing any statistical difference for some cases.
Campodea tuxeni Wygodzinski 1941
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Campodeidae
Campodea
Campodea tuxeni

description: Campodea tuxeni Wygodzinski, 1941
Entomologiske Meddelelser, 22 (2): 137
Holotype. Slovenia. Postumia: 1ex. 26/IV/1929 E. Suenson leg., on slide (NHMD 205971).
Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 228, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
Pseudopomatias siyomensis Godwin-Austen 1917
Creators: name: Páll-Gergely, Barna
name: Fehér, Zoltán
name: Hunyadi, András
name: Asami, Takahiro
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Architaenioglossa
Pupinidae
Pseudopomatias
Pseudopomatias siyomensis

description: Pseudopomatias siyomensis Godwin-Austen, 1917
Fig. 10 C
Pseudopomatias siyomensis Godwin-Austen, 1917: p. 578, Figs 5 a, 6c. Pseudopomatias siyomensis — Gude 1921, pp 160–161.
Diagnosis. A large species with strong, widely-spaced ribs and well-developed peristome consisting of two readily distinguishable circles.
Description. The only known shell is corroded, the shell colour and the sculpture of the protoconch could not be observed; shell slender turriform; whorls 9 in number and they are moderately bulging, separated by rather deep suture; teleoconch finely, regularly ribbed even behind the aperture, where the spaces between the ribs are wider than on the previous whorls; ribs seem to be stronger behind the aperture; aperture rounded with not angled columellar-parietal transition and slightly angled parietal-palatal transition; peristome very much thickened and slightly reflexed; it consists of a slimmer, protruding inner and a wider outer circle.
Measurements (in mm). H: 12.2, D: 4.9 (n=1).
Differential diagnosis. P. siyomensis is larger than P. himalayae, P. abletti n. sp. and P. harl i n. sp. Moreover, P. himalayae has a wider shell and more bulging whorls, and its aperture is oblique in lateral view; P. abletti n. sp. has "reversed oblique", rather triangular aperture; P. ha r l i n. sp. has turriform shell shape, lower ribs and a thinner apertural lip, which is not divided into two separated circles. P. rei schuetzi n. sp. is slightly more slender, has a thinner apertural rim and almost smooth neck area (last half of whorl).
Type material. Siyom, Abor Hills, leg. Captain Oakes, coll. Godwin-Austen, NHMUK 3406.03.7.1. (holotype).
Distribution. P. siyomensis is known from the type locality only. See also Fig. 2 and Table 3.
description: Published as part of Páll-Gergely, Barna, Fehér, Zoltán, Hunyadi, András & Asami, Takahiro, 2015, Revision of the genus Pseudopomatias and its relatives (Gastropoda: Cyclophoroidea: Pupinidae), pp. 1-49 in Zootaxa 3937 (1) on pages 28-29, DOI: 10.11646/zootaxa.3937.1.1, http://zenodo.org/record/237131
title: Desarrollo de un material compuesto basado en metal "arcilla metálica" para aplicaciones de manufactura aditiva en la fabricación de microdispositivos
Creators: name: López Solís, Sergio Jesús
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: INGENIERÍA Y TECNOLOGÍA::CIENCIAS TECNOLÓGICAS::TECNOLOGÍA DE LA CONSTRUCCIÓN::ENSAYOS DE MATERIALES
subject: Technology
subject: Arcilla metálica
subject: Manufactura aditiva
subject: Extrusión de metales
subject: Microdispositivos

description: 0000-0001-7774-8234
description: Está investigación explora el desarrollo y la validación de un compuesto metálico llamado “arcilla metálica” mediante fabricación aditiva por extrusión. Su objetivo es identificar los parámetros clave para la composición del material, el proceso de fabricación y las condiciones de sinterización. El estudio analiza la formulación del compuesto metálico, la adaptación de una impresora 3D para la extrusión y los hallazgos experimentales sobre materiales como Inconel 718 y acero inoxidable 316L. Se estudian y prueban varias proporciones de agua, polvo metálico y aglutinante orgánico para lograr una extruibilidad óptima, y el análisis termogravimétrico y espectroscópico ayuda a comprender las propiedades térmicas. El trabajo también evalúa las optimizaciones de la impresión 3D, incluidos los ajustes de la impresora, los tamaños de las boquillas y las resoluciones de impresión, y examina la fabricación de microcanales con un enfoque en la precisión y los procesos de sinterización para minimizar la porosidad. El estudio concluye con información sobre cómo mejorar la calidad y la reproducibilidad de la impresión, lo que contribuye a la fabricación de microdispositivos de arcilla metálica.
Dinjapyx rossi
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Dinjapygidae
Dinjapyx
Dinjapyx rossi

description: Dinjapyx rossi (Smith, 1959)
Proceedings of the Entomological Society of Washington, 61: 30
Paratype. Peru. Abancay: 1ex. 4/III/1951 Ross and Michelbacher leg., in 70% alcohol (NHMD 214820). Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 228, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
An evaluation of cyanobacterial occurrence and bloom development in Adirondack lakes
Creators: name: Gorney, Rebecca M.
name: Nystrom, Elizabeth A.
name: Stouder, Michael D.
name: St. Amand, Ann E.
name: Sauve, Cory
name: Clark, Denise
name: Stelzer, Erin A.
name: Givens, Carrie E.
name: Graham, Jennifer L.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Gorney RM, Nystrom EA, Stouder MD, St. Amand AE, Sauve C, Clark D, Stelzer EA, Givens CE and Graham JL. 2024. An evaluation of cyanobacterial occurrence and bloom development in Adirondack lakes. Lake Reserv Manage. 40:373–389. Cyanobacterial harmful algal blooms (cyanoHABs) have occurred in many low nutrient (oligotrophic) lakes in the northeastern United States. The Adirondack Park in New York is a large, mountainous region with many low nutrient lakes. There is a gap in understanding regarding whether cyanoHAB reporting data are truly reflective of the susceptibility of lakes to develop bloom conditions. We evaluated lakes with and without documented cyanoHABs for cyanotoxin synthetase gene quantification, phytoplankton community composition, and akinete abundance to identify conditions associated with the observation of cyanoHABs. We analyzed (1) contributions of cyanobacteria to the overall phytoplankton community, (2) differences in cyanobacterial communities and the presence of cyanotoxin synthetase genes, and (3) lake physical and geomorphological attributes as drivers of differences in cyanobacteria occurrence. Two sample types (water and sediment) were collected from 2 sample locations (nearshore and open water) in 5 lakes in 2021. We found cyanobacteria in all lakes and sample locations. Phytoplankton biovolume and cyanotoxin synthetase genes differed among lakes and by cyanoHAB history. Samples from lakes with documented blooms were associated with marginally higher total phosphorus. Nonmetric multidimensional scaling was used to identify which environmental factors influenced community structure. Our study demonstrates the importance of multifaceted approaches to detect cyanobacteria that may only be apparent during ephemeral bloom events and the similarities among lakes with and without a history of bloom reports. This work contributes to a better understanding of cyanoHAB occurrence in Adirondack lakes, and of conditions that may cause low nutrient lakes to be susceptible to cyanoHABs.
Parviplana jeronimoi Perez-Garcia, Norena & Cervera 2018
Creators: name: Pérez-García, Patricia
name: Gouveia, Filipa
name: Calado, Gonçalo
name: Noreña, Carolina
name: Cervera, Juan Lucas
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Polycladida
Leptoplanidae
Parviplana
Parviplana jeronimoi

description: Parviplana jeronimoi Pérez-García, Noreña & Cervera, 2018
Fig. 9
Material examined.
• MNCN 4.01/4263, Station 11, 23 December 2014, 29 mm.
Type locality.
La Caleta Beach, Cádiz.
Description.
Parviplana species with elongated body shapes, dorsal background colour yellow-brown, ventrally pale yellow. Paired cerebral and tentacular eyes. Genital pores separated. Male apparatus with a true seminal vesicle, interpolated and bulb-shaped prostatic vesicle, and massive penis papilla, while the female system shows a vagina bulbosa and a well-developed Lang’s vesicle (for more details, see Pérez-García et al. 2019).
Remarks.
The genus Parviplana comprises four species and is one of the least numerous genera within Polycladida. Parviplana jeronimoi is a very common species in Cadiz and Sancti Petri (Chiclana). Nevertheless, this species has not been reported in other localities until now. The other species of the genus are Parviplana hymani Faubel, 1983, and P. lynca (Du-Bois Reymond Marcus, 1958), which are from the Pacific and West Atlantic Oceans, respectively. Finally, after the Iberian species were described, P. sodade was described by Cuadrado et al. (2021) from Cape Verde.
Biology.
This species was collected and always observed under stones in the intertidal zone.
Distribution.
only known from several localities on the coasts of Cadiz, southern Spain (see Pérez-García et al. 2019).
description: Published as part of Pérez-García, Patricia, Gouveia, Filipa, Calado, Gonçalo, Noreña, Carolina & Cervera, Juan Lucas, 2024, Acotylea (Platyhelminthes, Polycladida) from the southern and western Iberian Peninsula, with the description of five new species, pp. 1487-1513 in Zoosystematics and Evolution 100 (4) on pages 1487-1513, DOI: 10.3897/zse.100.128211
Estimating nutrient load targets for lakes at a regional scale
Creators: name: Abell, J. M.
name: Özkundakci, D.
name: Mcbride, C. G.
name: Allan, M. G.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Abell JM, Özkundakci D, Mcbride CG, Allan MG. 2024. Estimating nutrient load targets for lakes at a regional scale. Lake Reserv Manag. 40:354–372. Estimating target nutrient loads to achieve desired lake water quality is challenging due to complex relationships between nutrient loading and in-lake concentrations. We analyzed lake water quality data and existing catchment model output to evaluate empirical nutrient loading models for 21 lakes in the Waikato region of New Zealand that had varying total nitrogen (TN) and total phosphorus (TP) concentrations. The optimum model, which included water residence time (τw) and inflow concentrations as predictors, was used to estimate target TN and TP loads necessary to meet target in-lake nutrient concentrations. Uncertainty in load estimates was estimated using bootstrapping. Results highlighted the substantial challenge facing lake managers: for lakes with in-lake concentrations exceeding targets, current TN loads were 21 times greater than target loads on average (standard deviation = 39 times), whereas current TP loads were ∼3 times greater than target loads on average (standard deviation = 3.1 times). To inform management more broadly, models were used to estimate target inflow concentrations for hypothetical lake restoration scenarios comprising varying target in-lake concentrations and τw. Scenario analysis quantified the major role of τw, with lower target inflow concentrations (i.e., greater load reductions) required to achieve in-lake nutrient targets in lakes with lower τw. For the scenarios analyzed, results showed the lakes are phosphorus sinks, but may switch from being a sink to a source of nitrogen as τw decreases. The approach used provides a reference for other jurisdictions faced with managing lakes with limited datasets and the results can inform lake management policy for similar lakes.
Texts Encouraging Security and Peace in the Holy Qur'an: A Rhetorical and Literary Perspective
Creators: name: Hamza B. M.
name: Isma'il A. Y.
Publisher: name: gjrpublication
Year: 2024

description: مما لا شك فيه أن دين الإسلام اهتم اهتماًما بالغًا بكل ما يؤدي إلى سعادة الإنسان ونجاحه في الدارين. تتناول هذه المقالة دراسة بعض النصوص من القرآن الكريم التي تدعو إلى الأمن والسلام، ودراستها من منظور بلاغي وأدبي، مع تسليط الضوء على دور تلك النصوص في منع الفساد في الأرض. تهدف المقالة، من خلال المنهج الوصفي والتحليلي، إلى إبراز دور الأمن والسلام في حياة الأمة، نظًرا لكونهما من أهم أسباب نهوض المجتمع والدولة معًا. كما تقدم للقارئ بعض الآراء البلاغية ودلالاتها، وتكشف عن القضايا المتعلقة بالأمن والسلام وقيمهما الفنية. من خلال ذلك، تسهم المقالة في توجيه القارئ لاختيار الألفاظ بعناية، مع مراعاة معانيها المختلفة، وتعمل على إرشاده إلى تعزيز السلام والمنفعة في حياة الأمة، والابتعاد عن الفساد في البر والبحر .تنحصر عناصر المقالة في مفهوم الأمن والسلام وقيمهما الفنية على ضوء الدلالة اللغوية، بناءً على دلالات بلاغية في النصوص القرآنية، ثم عرض نصوص الترغيب في الأمن والسلام وقيمهما الفنية. يلي ذلك دراسة ظواهر بلاغية وقيم فنية في النصوص القرآنية، ثم الخاتمة، الهوامش والمراجع
title: Uso de materiales alternativos en la fabricación de componentes de maquinaria
Creators: name: Roch Carbajal, Fernando
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: INGENIERÍA Y TECNOLOGÍA::CIENCIAS TECNOLÓGICAS::INGENIERÍA Y TECNOLOGÍA DEL MEDIO AMBIENTE::OTRAS
subject: Technology
subject: TPU
subject: Manufactura aditiva
subject: Esfuerzos
subject: Deformación plástica

description: 0000-0002-1377-3569
description: En esta tesis se aborda uno de los principales problemas en el ámbito de los componentes de máquinas: las consecuencias de su falla. A menudo, estas fallas causan daños significativos en la maquinaria. Para mitigar este problema, se propone el uso de material flexible TPU como sustituto en la fabricación de estos componentes. Además, se sugieren distintos diseños de geometría interna que podrían influir en los resultados. Se realizaron pruebas con engranes impresos mediante FDM en TPU flexible, evaluando la deformación del material bajo peso. Asimismo, estos pesos se simularon en Simcenter NASTRAN para validar los datos experimentales. Los resultados de ambas pruebas, físicas y las realizadas por simulación, demostraron que este material es bastante resiliente. En situaciones de falla, las piezas fabricadas no presentaron las fallas comunes en engranes de otros materiales y retornaron a su forma original sin indicios de daño permanente.
Evalljapyx anombris Smith 1960
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Japygidae
Evalljapyx
Evalljapyx anombris

description: Evalljapyx anombris Smith, 1960
Annals of the Entomological Society of America, 53: 138
Paratype. United States of America. Corral Hollow, Alameda County, California: 1♀ 10/III/1958 L.M. Smith and R.O. Schuster leg., on slide (NHMD 204507).
Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 228, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
title: 4-Plan de ruta STEM: una estrategia integral para la movilización de educación abierta
title: Movilización de educación abierta con base tecnológica: investigación y prácticas en STEM LATAM
Creators: name: Burgos Aguilar, José Vladimir
name: Ramírez Montoya, María Soledad
Publisher: name: Octaedro
Year: 2025
Subjects: subject: HUMANIDADES Y CIENCIAS DE LA CONDUCTA
subject: Education
subject: STEM
subject: Educación abierta
subject: Educational innovation
subject: Innovación educativa
subject: Educación superior
subject: Higher education
subject: R4C&TE
subject: España / Spain

description: En el capítulo 4, titulado «Plan de Ruta STEM: una estrategia integral para la Movilización de Educación Abierta», exploramos qué elementos pueden actuar como catalizadores de la educación abierta. Presentamos el Plan de Ruta STEM, una propuesta que busca impulsar la educación abierta a través de un enfoque sistemático y estructurado. Asimismo, un Mapa STEM de Educación Abierta, como una innovadora plataforma de aprendizaje 4. Plan de Ruta STEM: una estrategia integral para la Movilización de Educación Abierta 87 que fomenta la colaboración y el intercambio social entre los participantes. Este capítulo muestra cómo estas herramientas pueden transformar la educación abierta, haciéndola más inclusiva y dinámica, y explica cómo implementarlas para maximizar su impacto en el impulso de la educación abierta.
Evalljapyx facetus Smith 1959
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Japygidae
Evalljapyx
Evalljapyx facetus

description: Evalljapyx facetus Smith, 1959
Proceedings of the Entomological Society of Washington, 61: 272
Paratype. United States of America. Newcastle, Placer County, California: 1♀ 12/III/1958 L.M. Smith and R.O. Schuster leg., on slide (NHMD 204518).
Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 228, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
title: Experimental characterization of vector Parabolic-Gauss beams
Creators: name: Ramírez Ríos, Diego Armando
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA::FÍSICA::ÓPTICA::OPTICA FÍSICA
subject: Science
subject: Paraxial beams
subject: Optics
subject: Helmholtz
subject: Vector beams
subject: Stokes
subject: Polarimetry
subject: Parabolic
subject: Gauss

description: https://orcid.org/0000-0002-0600-8551
description: The theoretical and experimental study of optical beams that satisfy Helmholtz equation un­ der the paraxial regime is a relatively recent field in Optics and Photonics. Assuming quasi­ parallel propagation of a beam along a longitudinal axis, transversal planes of it can be mathe­ matically stated, which, embedded to a Gaussian apodization, are known as Helmholtz-Gauss (HzG) beams. Scalar orthogonal families of solutions of HzG beams such as Mathieu-Gauss, Bessel-Gauss, Parabolic-Gauss (PG), have been thoroughly studied trough numerical and ex­ perimental generation. Nonetheless, the Helmholtz equation admits vector solutions con­ structed from scalar HzG beams. Such vector HzG beams present electrical polarization dependent of the transversal locality, so that every point in the xy plane manifests its own polarization state. In this dissertation, motivated by the absence of report of experimental
Experimental study of a tunable hybrid III-V-on-silicon laser for spectral characterization of fiber Bragg grating sensors
Creators: name: Quélène, Jean-Baptiste
name: Pohl, Didier
name: Bitauld, David
name: Hassan, Karim
name: Laffont, Guillaume
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Fiber Bragg Grating (FBG) sensors offer multiple benefits in comparison with electronic sensors due to their compactness, electromagnetic immunity as well as their resistance to harsh environments and their multiplexing capabilities. Structural Health Monitoring (SHM) is one of the various potential industrial applications that could take full advantage of those sensors. However, there is a need for a low size, weight, power and cost interrogation unit for certain application areas such as aerospace or aeronautics. That is the reason why recent efforts have been made to use integrated components and circuits for interrogation of FBGs. Among different techniques, interrogation with a swept laser source is of high interest since it has a high multiplexing capability and could reach a high level of integration using other integrated components such as photodetectors, grating couplers or directional couplers to form a compact interrogation unit. In this paper, we present characterization results of a fully-packaged hybrid III-V on silicon tunable laser diode operating in the C and L bands. Wavelength maps are produced and analyzed and modulation of emitted wavelength is discussed. Preliminary results corresponding to a moderate frequency (10-Hz sweep rate) were obtained and FBG reflection spectra acquired with a broadband source (BBS) and a swept laser diode are compared. Finally, we discuss potential design improvements in order to reach high scan rates (> 10 kHz) and a large tuning range.
Cool dark sector, concordance, and a low $σ_8$
Creators: name: Hughes, Ellie
name: Ge, Fei
name: Cyr-Racine, Francis-Yan
name: Knox, Lloyd
name: Raghunathan, Srinivasan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate a cosmological model in which a fraction of the dark matter is atomic dark matter (ADM). This ADM consists of dark versions of the electron and of the proton, interacting with each other and with dark photons just as their light sector versions do, but interacting with everything else only gravitationally. We find constraints given current cosmic microwave background (CMB) and baryon acoustic oscillation (BAO) data, with and without an $H_0$ prior, and with and without enforcing a big bang nucleosynthesis consistent helium abundance. We find that, at low dark photon temperature, one can have consistency with BAO and CMB data, with a fraction of dark matter that is ADM ($f_{\rm adm}$) as large as $\sim 0.1$. Such a large $f_{\rm adm}$ leads to a suppression of density fluctuations today on scales below about 60 Mpc that may be of relevance to the $σ_8$ tension. Our work motivates calculation of nonlinear corrections to matter power spectrum predictions in the ADM model. We forecast parameter constraints to come from future ground-based CMB surveys, and find that if ADM is indeed the cause of the $σ_8$ tension, the influence of the ADM, primarily on CMB lensing, will likely be detectable at high significance.
description: 16 pages + references, 9 figures. Published in PRD
Evalljapyx leechi Smith 1960
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Japygidae
Evalljapyx
Evalljapyx leechi

description: Evalljapyx leechi Smith, 1960
Journal of the Kansas Entomological Society, 33 (1): 1
Paratype. United States of America. Lemon Cove, Tulare County, California: 1♂ 5/III /1 957 H.B. Leech leg., on slide (NHMD 204643).
Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 228, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
title: Magnetic gripper design optimization for robotic bending cell using artificial intelligence clustering of sheet metal parts
Creators: name: Treviño Treviño, Ana Paula
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: INGENIERÍA Y TECNOLOGÍA::CIENCIAS TECNOLÓGICAS::TECNOLOGÍA INDUSTRIAL::NIVELES ÓPTIMOS DE PRODUCCIÓN
subject: Technology
subject: Gripper design
subject: Artificial intelligence
subject: Smart manufacturing
subject: Robotic arm
subject: Product family
subject: Product architecture
subject: Clustering

description: https://orcid.org/0000-0001-5461-0355
description: The manufacturing sector is currently facing unprecedented challenges in adapting to the constantly evolving demands of diverse product lines and rapid market changes. Conventional manufacturing systems are struggling to adapt to the increasing variety of production components, leading to notable ineﬃciencies and heightened expenses. In this context, Reconﬁgurable Manufacturing Systems (RMS) have emerged as a prominent strategy to boost the adaptability and responsiveness of production processes. Therefore, the design and optimization of grippers for robotic arms are deemed essential to improve eﬃciency and productivity. The project aims to enhance gripper design by using AI clustering techniques and dimensional analysis to cluster production components and deﬁne design parameters for novel gripper conﬁgurations. This approach aligns with the tenets of lean manufacturing and data-driven decision-making, empowering manufacturing engineers and designers. The project also aims to optimize internal design and manufacturing, reducing reliance on external suppliers, and improving long-term adaptability and competitiveness by leveraging the cost reduction that in-house processes represent. The case study examines 964 sheet metal production components, highlighting ineﬃciencies of manual classiﬁcation, part allocation challenges, and design speciﬁcation retrieval. Furthermore, it explores diﬀerent scenarios to render the best cluster quality possible with the supplied dataset and the constraints that materialize when translating the design parameters into actual design properties of the grippers, as well as the gripper-part compatibility. The thesis introduces an innovative method for managing part variety in gripper design by seizing advanced technologies and data-driven decision-making. This results in substantial enhancements in time eﬃciency, cost reduction, safety optimization, and the eradication of ineﬃcient workﬂows within the manufacturing sector.
Real-time topology optimization via learnable mappings
Creators: name: Garayalde, Gabriel
name: Torzoni, Matteo
name: Bruggi, Matteo
name: Corigliano, Alberto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: In traditional topology optimization, the computing time required to iteratively update the material distribution within a design domain strongly depends on the complexity or size of the problem, limiting its application in real engineering contexts. This work proposes a multi-stage machine learning strategy that aims to predict an optimal topology and the related stress fields of interest, either in 2D or 3D, without resorting to any iterative analysis and design process. The overall topology optimization is treated as regression task in a low-dimensional latent space, that encodes the variability of the target designs. First, a fully-connected model is employed to surrogate the functional link between the parametric input space characterizing the design problem and the latent space representation of the corresponding optimal topology. The decoder branch of an autoencoder is then exploited to reconstruct the desired optimal topology from its latent representation. The deep learning models are trained on a dataset generated through a standard method of topology optimization implementing the solid isotropic material with penalization, for varying boundary and loading conditions. The underlying hypothesis behind the proposed strategy is that optimal topologies share enough common patterns to be compressed into small latent space representations without significant information loss. Results relevant to a 2D Messerschmitt-Bölkow-Blohm beam and a 3D bridge case demonstrate the capabilities of the proposed framework to provide accurate optimal topology predictions in a fraction of a second.
ASKIYA SAN'ATI
Creators: name: Nurmuxammadjonov, Axmadjon
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada o‘zbek askiya san’atining  o‘tmishda va xozirgi kunda xalqimizning ma’naviy saviyasini oshirishdagi ahamiyati va  o‘zbek askiya san’atini shakllanish jarayoni ilmiy asoslab berilgan. Maqolada xalq askiyasi xam boshqa san'atlar singari o‘ziga xos spetsifik tasviriy vositalar bilan xalqning dunyoqarashi, donishmandligi, orzu umidi, milliy va davriy ruxini aks ettirishi haqida yoritib o’tilgan. Ushbu maqolada Alisher Navoiy davrida askiya qay darajada shakllanganligi, keng tarqalganligi  va san'at darajasiga ko‘tarilganligi keng yoritilib o’tilgan.
title: Capacitación y Plataforma en Línea para Mejorar la Integración de Tecnología en la Educación Básica
Creators: name: Garza Leal, Analucía
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: HUMANIDADES Y CIENCIAS DE LA CONDUCTA::PEDAGOGÍA::OTRAS ESPECIALIDADES PEDAGÓGICAS
subject: Education
subject: Technology
subject: Capacitación docente
subject: Tecnología educativa
subject: Plataformas en línea
subject: Integración tecnológica
subject: Autoeficacia docente
subject: Recursos tecnológicos
subject: Sostenibilidad del proyecto
subject: Evaluación de resultados
subject: Desafíos tecnológicos
subject: Percepción docente
subject: Proceso enseñanza-aprendizaje

description: Este proyecto aborda de manera detallada el contexto y las razones que motivaron la intervención para optimizar la integración de herramientas tecnológicas en la educación básica. A través de un diagnóstico realizado en una escuela privada de Monterrey N.L, México, se detectaron una serie de retos clave que limitaban la adecuada adaptación de los docentes a las nuevas tecnologías. Entre estos desafíos, se destacó la falta de formación específica, lo que resultaba en una subutilización de los recursos tecnológicos disponibles. Muchos de los docentes no contaban con la experiencia necesarias para incorporar de manera eficiente estas herramientas en sus clases, lo que reducía el impacto potencial de la tecnología en el proceso educativo. Para solventar la necesidad detectada, se desarrolló una propuesta de implementación de una plataforma en línea que proporciona capacitación continua a los docentes. Este enfoque no solo busca mejorar el uso de la tecnología en el aula, sino también promover un cambio en las prácticas educativas tradicionales, facilitando una integración más efectiva de las herramientas digitales en el currículo escolar. Los resultados del proyecto han sido alentadores, ya que, a través de esta plataforma, los docentes han mostrado un progreso significativo en el uso de la tecnología dentro de sus clases y en su autopercepción del uso de las herramientas, lo que ha permitido una mayor optimización de los recursos disponibles y una mejora notable en la calidad de la enseñanza, así como una satisfacción en el uso de la plataforma como un recurso educativo significativo.
Performance analysis of table-top single-pulse terahertz detection up to 1.1 MHz
Creators: name: Couture, Nicolas
name: Lippl, Markus
name: Cui, Wei
name: Gamouras, Angela
name: Joly, Nicolas Y.
name: Ménard, Jean-Michel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Slow data acquisition in terahertz time-domain spectroscopy (THz-TDS) has hindered the technique's ability to resolve "fast" dynamics occurring on the microsecond timescale. This timescale, arguably too slow to be accessed via standard optical pump-probe techniques relying on ultrafast sources, hosts a range of phenomena that has been left unexplored due to a lack of proper real-time monitoring techniques. In this work, chirped-pulse spectral encoding, a photonic time-stretch technique, and high-speed electronics are used to demonstrate time-resolved THz detection at a rate up to 1.1 MHz. This configuration relies on a table-top source and a setup able to resolve every THz transient that it can generate. We investigate the performance of this system at different acquisition rates in terms of experimental noise, dynamic range, and signal-to-noise ratio. Our results pave the way towards single-pulse THz-TDS at arbitrarily fast rates to monitor complex dynamics in real-time.
description: 4 pages, 4 figures
Food web ecology of Lahontan cutthroat trout
Creators: name: Reyes-Avila, Alexander D.
name: Moore, Barry C.
name: Jones, Bryan W.
name: Taylor, Timothy N.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Reyes-Avila AD, Moore BC, Jones BW, Taylor TN. 2024. Food web ecology of Lahontan cutthroat trout. Lake Reserv Manage. 40:390–403. The diet of the Lahontan cutthroat trout (LCT; Oncorhynchus henshawi) introduced in Omak Lake is an example of fish adaptation to new ecosystems, providing more information for successful stocking. Our research aimed to elucidate the role of LCT in the Omak Lake food web, identifying and quantifying the main prey taxa in LCT diets throughout life stages. We investigated potential dietary limitations to support the sustainability and subsistence of LCT and assist management decisions for the sport fishery. Samples were collected seasonally during spring (2018–2021), summer (2019–2021), and autumn (2019–2021). Trout were divided into groups by age. We identified and quantified short-term prey consumption via stomach content analysis (SCA). Stable isotope analysis (SIA) of nitrogen and carbon (δ15N, δ13C) elucidated longer term predator/prey food web relationships. We found that juvenile LCT (1–2 yr; 150–299 mm) diets included aquatic and terrestrial invertebrates (57%). We observed an ontogenetic dietary transition to piscivory at about 2–4 yr (300–450 mm). Fish were a primary diet source (64%) for adult LCT (>4 yr; >450 mm); however, aquatic, and terrestrial invertebrates were still utilized, particularly in the spring season. The largest LCT (>600 mm) consumed mainly fish (>72%). According to SCA, the 5 largest dietary sources for LCT of all ages were peamouth > Coleoptera > LCT-cannibalized > longnose sucker > Odonata. Diptera were found in all LCT age groups, and terrestrial macroinvertebrates were an important seasonal food source. The SIA and SCA results revealed LCT’s dietary plasticity and suggested prey fish scarcity may limit the growth of larger LCT (Beauchamp et al. 2007).
Evalljapyx newelli Smith 1960
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Japygidae
Evalljapyx
Evalljapyx newelli

description: Evalljapyx newelli Smith, 1960
Annals of the Entomological Society of America, 53: 140
Paratype. United States of America. Mount San Jacinto, Riverside County, California: 1♂ 20/IV/1958 I.M. Newell leg., on slide (NHMD 204648).
Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 229, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
Custodial Symmetry Breaking and Higgs Signatures at the LHC
Creators: name: Butterworth, Jon
name: Debnath, Hridoy
name: Perez, Pavel Fileviez
name: Mitchell, Francis
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss the simplest model that predicts a tree level modification of the $ρ$ parameter from a shift in the $W$-mass without changing the prediction for the $Z$ mass. This model predicts a new neutral Higgs and two charged Higgses, with very similar masses and suppressed couplings to the Standard Model fermions. We discuss the decay properties of these new scalar bosons, and the main signatures at the Large Hadron Collider. Comparing these signatures for the first time to the latest measurements, we show that while masses around 200 GeV are excluded for some scenarios, over a wide range of model parameter space the new bosons can have a mass close to the electroweak scale without violating existing limits from experimental searches or destroying the agreement with measurements. We investigate the scenario where the new neutral Higgs is fermiophobic and has a large branching ratio into $W$ gauge bosons and/or photons, and show that this could lead to a signal in the diphoton mass spectrum at low Higgs masses. We discuss the different signatures that can motivate new measurements and searches at the Large Hadron Collider.
description: some corrections, extra discussion, references added, conclusions unchanged, version to appear in Physical Review D
Hecajapyx vulgaris Smith 1959
Creators: name: Eusébio, Rita
name: Sendra, Alberto
name: Enghoff, Henrik
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Diplura
Japygidae
Hecajapyx
Hecajapyx vulgaris

description: Hecajapyx vulgaris Smith, 1959
Annals of the Entomological Society of America, 52: 366
Paratype. United States of America. Oakville, Napa County, California: 1♂ 13/XII/1957 L.M. Smith and R.O. Schuster leg., on slide (NHMD 204852).
Current status: Valid name.
description: Published as part of Eusébio, Rita, Sendra, Alberto, Enghoff, Henrik & Reboleira, Ana Sofia P. S., 2018, Catalogue of the type material in the entomological collection of the Natural History Museum of Denmark: basal hexapods, pp. 201-236 in Zootaxa 4457 (2) on page 229, DOI: 10.11646/zootaxa.4457.2.1, http://zenodo.org/record/1341991
An EigenValue Stabilization Technique for Immersed Boundary Finite Element Methods in Explicit Dynamics
Creators: name: Eisenträger, Sascha
name: Radtke, Lars
name: Garhuom, Wadhah
name: Löhnert, Stefan
name: Düster, Alexander
name: Juhre, Daniel
name: Schillinger, Dominik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: J.2; G.1.3; G.1.8
subject: 65M22

description: The application of immersed boundary methods in static analyses is often impeded by poorly cut elements (small cut elements problem), leading to ill-conditioned linear systems of equations and stability problems. While these concerns may not be paramount in explicit dynamics, a substantial reduction in the critical time step size based on the smallest volume fraction $χ$ of a cut element is observed. This reduction can be so drastic that it renders explicit time integration schemes impractical. To tackle this challenge, we propose the use of a dedicated eigenvalue stabilization (EVS) technique.
 The EVS-technique serves a dual purpose. Beyond merely improving the condition number of system matrices, it plays a pivotal role in extending the critical time increment, effectively broadening the stability region in explicit dynamics. As a result, our approach enables robust and efficient analyses of high-frequency transient problems using immersed boundary methods. A key advantage of the stabilization method lies in the fact that only element-level operations are required.
 This is accomplished by computing all eigenvalues of the element matrices and subsequently introducing a stabilization term that mitigates the adverse effects of cutting. Notably, the stabilization of the mass matrix $\mathbf{M}_\mathrm{c}$ of cut elements -- especially for high polynomial orders $p$ of the shape functions -- leads to a significant raise in the critical time step size $Δt_\mathrm{cr}$.
 To demonstrate the efficacy of our technique, we present two specifically selected dynamic benchmark examples related to wave propagation analysis, where an explicit time integration scheme must be employed to leverage the increase in the critical time step size.
description: 45 pages, 25 figures
title: Evaluation of the impact on energy and thermal comfort of PCM-enhanced on roof buildings in semi-arid climates
Creators: name: Godoy Rangel, Caribay
Publisher: name: Instituto Tecnológico y de Estudios Superiores de Monterrey
Year: 2024
Subjects: subject: INGENIERÍA Y TECNOLOGÍA::CIENCIAS TECNOLÓGICAS::TECNOLOGÍA DE LA CONSTRUCCIÓN::PROPIEDADES DE LOS MATERIALES
subject: Technology
subject: Phase Change Material
subject: PCM
subject: Natural Ventilation
subject: Experimental
subject: Numerical
subject: Semi-arid climate

description: https://orcid.org/0000-0003-2462-2499
description: In recent decades, buildings have emerged as a significant contributor to urban energy consumption. In order to mitigate the environmental impact of this phenomenon, the utilization of thermal storage through phase change materials (PCM) in the building envelope has become an innovative strategy. Nevertheless, despite the assumption that the incorporation of PCM will improve the thermal efficiency of buildings, this is not a guaranteed outcome in all instances. In climates that exhibit pronounced seasonal extremes, the capacity of PCM for thermal storage is constrained. This experimental and numerical study, focused on semi-arid climates, aimed to enhance the performance of PCM in combination with natural ventilation thus the thermal performance of building roofs. In addition, the study extends the evaluation by combining PCM with insulating materials and reflective paint. It is anticipated that the integration of PCM with another passive strategy will enhance its thermal performance, particularly in extreme climates where the full potential of this material is often constrained. The results of the study focus on the analysis of the thermal behavior of the PCM, thermal comfort, and annual energy demand, with the environmental and cost implications that this represents. The experimental study, conducted in real climatic conditions, focused on the combination of PCM with natural ventilation. The numerical study generated 108 new scenarios, which were evaluated during a typical meteorological year. The results demonstrated that the incorporation of natural ventilation optimizes the thermal behavior of the PCM, enabling an increase in the time spent in a solid state by up to 41%. This enhances the efficiency of the complete cycle, ensuring its completion within a single day. Moreover, the utilization of PCM resulted in a reduction of the maximum peak indoor air temperature during the summer months by between 1.9% and 7.2%, while an increase in the minimum valley during the winter months was observed, ranging from 4.4% to 10.4%. The duration of time spent within the comfort zone was increased, up to a maximum of one hour during the summer months. Similarly, the introduction of natural ventilation through ducts into an air chamber with PCM has been demonstrated to reduce annual energy gains by up to 92.9%. Ultimately, the combination of PCM with reflective paint and XPS insulation has the potential to result in annual savings of up to 12.95 tCO₂e, with an estimated investment return period of 2.8 years.
Wetzel families and the continuum
Creators: name: Schilhan, Jonathan
name: Weinert, Thilo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic (math.LO)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 03E35, 03E50, 03E05, 30D20, 30E05

description: We provide answers to a question brought up by Erdős about the construction of Wetzel families in the absence of the continuum hypothesis - a Wetzel family is a family $\mathcal{F}$ of entire functions on the complex plane which pointwise assumes fewer than $\vert \mathcal{F} \vert$ values. To be more precise, we show that the existence of a Wetzel family is consistent with all possible values $κ$ of the continuum and, if $κ$ is regular, also with Martin's Axiom. In the particular case of $κ= \aleph_2$ this answers an open question asked by Kumar and Shelah. In the buildup to this result, we are also solving an open question of Zapletal on strongly almost disjoint functions. We also study a strongly related notion of sets exhibiting a universality property via mappings by entire functions and show that these consistently exist while the continuum equals $\aleph_2$.
description: 24 pages