BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Un Universo con corte de rama DTSTART;VALUE=DATE-TIME:20211217T220000Z DTEND;VALUE=DATE-TIME:20211217T223000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-481@indico.uni.edu.pe DESCRIPTION:Speakers: Cesar Zen Vasconcellos (UFRGS /ICRANet)\nEn esta con tribución identificamos dos escenarios para el universo evolutivo con un corte de rama. En el primer escenario\, el universo evoluciona continuamen te desde el sector de tiempo cosmológico complejo negativo\, anterior a u na singularidad primordial al sector positivo correspondiente\, rodeando c ontinuamente un corte de rama\, y ​​no se produce ninguna singularidad primordial en el sector imaginario\, solo puntos de rama. En el segundo e scenario\, el corte de rama y el punto de rama desaparecen después de la realización del componente imaginario del tiempo complejo a través de un a rotación de Wick\, que es reemplazado por el tiempo térmico. En el seg undo escenario\, el universo tiene su origen en el Big Bang\, pero el mode lo contempla simultáneamente un universo evolutivo paralelo reflejado que evoluciona hacia atrás en el sector negativo del tiempo térmico cosmol ógico. Se esboza una formulación cuántica basada en la ecuación WDW y se extraen conclusiones preliminares.\n\nhttps://indico.uni.edu.pe/event/1 10/contributions/481/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/481/ END:VEVENT BEGIN:VEVENT SUMMARY:Monitoreo de la estabilidad de respuesta de un prototipo de detect or Cherenkov analizando el decaimiento del muón DTSTART;VALUE=DATE-TIME:20211217T154500Z DTEND;VALUE=DATE-TIME:20211217T160000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-504@indico.uni.edu.pe DESCRIPTION:Speakers: David Saúl Quispe Calloapaza (Universidad Nacional de San Agustín de Arequipa)\, Sonia Diana Quispe Mamani (UNSA)\nPara pode r detectar rayos cósmicos y rayos gamma de alta energía\, es necesario l a construcción de observatorios que usen la tecnología de detectores Che renkov de agua\, también llamados detectores de superficie\, y que cubran una gran área en lugares de gran altitud\, mayores a 4500msnm para la de tección de rayos gamma de 1 TeV. Una de las colaboraciones que monitorea este tipo de radiación es LAGO (Latin American Giant Observatory)\, quien es nos compartieron la data que fue analizada en el presente trabajo. Con el objetivo de monitorear la calibración para este tipo de detectores de superficie a lo largo del tiempo\, se analizó la respuesta frente a muone s que atraviesan el detector y a algunos\, de menor energía\, que decaen dentro del mismo. Para los muones que decaen dentro del detector\, se util izó el espectro de Michel con la finalidad de controlar que la calibraci ón de los detectores funciona correctamente a lo largo del tiempo\, o si hubo algún cambio en las características del detector que las calibracio nes no tuvieron en cuenta. El método utilizado para ésta calibración se basó en la limpieza de la data apoyándonos en fenómenos físicos que o curren dentro del detector y de los tubos fotomultiplicadores\n\nhttps://i ndico.uni.edu.pe/event/110/contributions/504/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/504/ END:VEVENT BEGIN:VEVENT SUMMARY:The Southern Wide Field Gamma-ray Observatory (SWGO) DTSTART;VALUE=DATE-TIME:20211217T140000Z DTEND;VALUE=DATE-TIME:20211217T143000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-467@indico.uni.edu.pe DESCRIPTION:Speakers: Ulisses Barres de Almeida (Centro Brasileiro de Pesq uisas Físicas (CBPF))\nThe Southern Wide Field Gamma Ray Observatory (SWG O) is an international collaboration established in 2019 to plan and desig n a new wide field-of-view gamma-ray observatory in South America. The SWG O will be a complementary instrument to the Cherenkov Telescope Array (CTA )\, and to large extensive air shower arrays such as HAWC (Mexico) and LHA ASO (China). Once operational\, it will be the first observatory of its ki nd in the Southern Hemisphere\, working in the range from 0.1 TeV to PeV t o scan the entire southern sky\, including the Galactic Plane and Center\, in search of PeVatron sources. With a continuous observational duty-cycle \, SWGO will also monitor the sky for extreme transients such as Gamma-ray Bursts and other astrophysical objects associated with multi-messenger ev ents such as neutrinos and gravitational waves. In this contribution I wil l present in detail the proposal and plans currently under development for this future observatory\, to be installed at an altitude of about 4.5 km in the Andes\, and which has strong Latin-American involvement.\n\nhttps:/ /indico.uni.edu.pe/event/110/contributions/467/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/467/ END:VEVENT BEGIN:VEVENT SUMMARY:Modelo de resistividad sigmoidea no lineal acoplada para la superc onductividad DTSTART;VALUE=DATE-TIME:20211218T151500Z DTEND;VALUE=DATE-TIME:20211218T153000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-503@indico.uni.edu.pe DESCRIPTION:Speakers: D. André Orna T. (Universidad Nacional Mayor de San Marcos)\nSe presenta un modelo para estudiar el comportamiento de la resi stividad versus temperatura en superconductores. El modelo se basa en la f unción sigmoidea y la función exponencial\, con un término de acoplamie nto entre ambas funciones. Se obtuvo una expresión analítica para la tem peratura crítica y temperatura crítica máxima sin necesidad de introduc ir estos término en la ecuación de resistividad. Mostramos característi cas en el cambio de fase\, y como su comportamiento coincide con los resul tados para superconductores de baja temperatura\, alta temperatura y a tem peratura ambiente.\n\nhttps://indico.uni.edu.pe/event/110/contributions/50 3/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/503/ END:VEVENT BEGIN:VEVENT SUMMARY:Extensiones Conformes del Modelo Estándar DTSTART;VALUE=DATE-TIME:20211218T153000Z DTEND;VALUE=DATE-TIME:20211218T154500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-500@indico.uni.edu.pe DESCRIPTION:Speakers: Martín Dionisio Arteaga Tupia ()\nUn escenario inte resante qué nos plantea posible física más allá del modelo estándar e s el de las teorías con invarianza conforme. Este tipo de teorías tiene la particularidad de gozar de la propiedad de invarianza de escala\, y de invarianza sobre transformaciones especiales conformes. Este tipo de teor ías cobro mayor relevancia en los últimos años debido a ser un ingredie nte importante dentro de la teoría de cuerdas (supercuerdas) y sobre todo debido al auge de la correspondencia AdS/CFT. Asi mismo\, se ha plantedo que las ondas gravitacionales generadas por transiciones de fase en el uni verso temprano son especialmente fuertes en modelos conformes. Volviendose potenciales candidatos a ser detectados através de señales gravitaciona les. En esta presentación hablaremos sobre posibles extensiones conformes del modelo estándar de la física de partículas.\n\nhttps://indico.uni. edu.pe/event/110/contributions/500/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/500/ END:VEVENT BEGIN:VEVENT SUMMARY:Constrained symplectic approach to the matter field DTSTART;VALUE=DATE-TIME:20211218T150000Z DTEND;VALUE=DATE-TIME:20211218T151500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-499@indico.uni.edu.pe DESCRIPTION:Speakers: Raul Quicaño Bellido (IMCA-UNI)\nWe consider a two- dimensional field theory which is a deformation of the integrable Toda mod el coupled\nto matter field. With the following Lagrangian\n$$\n\\frac{1}{ \\kappa} {\\cal L}=\\frac{1}{4}\\partial_{\\mu }\\varphi \\partial ^{\\mu }\\varphi +i\\overline{\\chi }\\gamma ^{\\mu}\\partial _{\\mu }\\chi -M \\ overline{\\chi }e^{ 2 i (\\varphi + r \\theta) \n\\gamma _{5}}\\chi +\\lam bda_{\\mu}(2\\overline{\\chi}\\gamma^{\\mu}\\chi-\\epsilon^{\\mu\\nu}\\par tial_{\\nu}(\\varphi + v \\theta)). \n$$\nIt is treated as a constrained s ystem in the context of Faddeev-Jackiw and constrained symplectic formalis m. We recover from this theory either the sine-Gordon or the massive Thirr ing model\, through a process of Hamiltonian reduction\, considering the e quivalence of the Noether and topological currents modifieds as a constrai nt.\n\nhttps://indico.uni.edu.pe/event/110/contributions/499/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/499/ END:VEVENT BEGIN:VEVENT SUMMARY:Modelo de resistividad sigmoidea no lineal acoplada para la super conductividad DTSTART;VALUE=DATE-TIME:20211218T144500Z DTEND;VALUE=DATE-TIME:20211218T150000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-498@indico.uni.edu.pe DESCRIPTION:Speakers: Diego André Orna Tiburcio ()\nSe presenta un modelo para estudiar el comportamiento de la resistividad versus temperatura en superconductores. El modelo se basa en la función sigmoidea y la función exponencial\, con un término de acoplamiento entre ambas funciones. Se o btuvo una expresión analítica para la temperatura crítica y temperatura crítica máxima sin necesidad de introducir estos término en la ecuaci ón de resistividad. Mostramos características en el cambio de fase\, y c omo su comportamiento coincide con los resultados para superconductores de baja temperatura\, alta temperatura y a temperatura ambiente.\n\nhttps:// indico.uni.edu.pe/event/110/contributions/498/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/498/ END:VEVENT BEGIN:VEVENT SUMMARY:Increase of magnetic hyperthermia in nanochains of magnetite nanop articles DTSTART;VALUE=DATE-TIME:20211218T143000Z DTEND;VALUE=DATE-TIME:20211218T144500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-497@indico.uni.edu.pe DESCRIPTION:Speakers: Juan Rafael Gomez Quispe (Universidad Nacional Mayor de San Marcos)\nMagnetic nanoparticles are being widely investigated for their great potential applications in drug transport\, magnetic resonance imaging\, and the treatment of magnetic hyperthermia. Magnetic hyperthermi a consists of the destruction of cancer cells by heat\, which is dissipate d by nanoparticles. The assembly in the form of chains can increase the he ating capacity of the nanoparticles\, due to the effect of the dipole inte raction and magnetic anisotropy. In this work\, the Monte Carlo-Metropolis method is used to calculate the hysteresis cycles of various systems of n anochains at low temperature (T = 5 Kelvin)\, composed of spherical magnet ite nanoparticles. The different concentrations and distribution of the an isotropy axes are considered randomly and constrained in a solid of 20 deg rees cone. The nanochains with random anisotropy show an increase in heati ng\, for the entire range of applied magnetic field. Anisotropy restricted nanochains show the maximum heating capacity\, but only for high magnetic field values\, observing a blocking effect caused by the assembly of the system in the form of nanochains. Finally\, these results show the potenti al of magnetic nanochains to improve the treatment of magnetic hyperthermi a.\n\nhttps://indico.uni.edu.pe/event/110/contributions/497/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/497/ END:VEVENT BEGIN:VEVENT SUMMARY:DISEÑO Y CONSTRUCCIÓN DE UN EQUIPO DE SENSIBILIDAD Y MEDICIONES EN MUESTRAS DE FERRITA DE COBALTO EN AMBIENTE DE AMONIO CUATERNARIO DTSTART;VALUE=DATE-TIME:20211218T141500Z DTEND;VALUE=DATE-TIME:20211218T143000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-496@indico.uni.edu.pe DESCRIPTION:Speakers: Apuniano Aman Baldarrago Alcantara (Universidad Nac ional de san Agustin de Arequipa)\nNanopartículas (NPs) de ferrita de cob alto fueron sintetizadas por dos métodos diferentes. El primer método es coprecipitación\, en el cual se utilizó como medios de nucleación hidr óxido de sodio y sosa caustica. Las NPs sintetizadas por sol-gel fueron s ometidas a temperaturas de tratamiento térmico de 400\, 500\, 600\, 700 y 800°C para definir la cristalinidad. La caracterización microestructura l se realizó por difracción de rayos X. Para las pruebas de sensibilidad \, se diseñó y construyó un sistema de medición basado en la plataform a de desarrollo Arduino. La calibración del equipo se realizó utilizando un multímetro de alta impedancia Keithley DMM196. En el presente trabajo se realizó pruebas de sensibilidad a vapores de amonio cuaternario. Los resultados preliminares indican una variación del 9.7% del factor de sens ibilidad para las muestras obtenidas por coprecipitación y una relación directa entre la temperatura de tratamiento térmico y el factor de sensib ilidad para las muestras obtenidas por sol-gel.\n\nhttps://indico.uni.edu. pe/event/110/contributions/496/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/496/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulación de cascadas atmosféricas extensas para determinar las características optimas de un detector Cherenkov de agua para rayos gamm a\, utilizando CORSIKA. DTSTART;VALUE=DATE-TIME:20211218T140000Z DTEND;VALUE=DATE-TIME:20211218T141500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-495@indico.uni.edu.pe DESCRIPTION:Speakers: Hector Bryan Apaza Ortiz (Universidad Nacional de Sa n Agustin - Arequipa)\nUn parámetro de vital importancia al optimizar los detectores de efecto Cherenkov\, es la altura a la cual estos serán colo cados\, en la Ciudad de Arequipa se estudió tres zonas propicias\; Yanque \, Imata y Sumbay. Se analizó la distribución lateral de la componente e lectromagnética y muónica de cascadas iniciadas por rayos gamma en las t res alturas\, a las cuales se encuentran estas ciudades\, y se hizo compar aciones. Los resultados muestran que para rayos gamma primarios con energi a de 100 GeV (energias bajas)\, las diferencias entre las tres ciudades so n las siguientes\; en Yanque hasta un 22 % más energía perteneciente a l a componente electromagnética de la que se deposita en Imata\, hasta un 5 4 % más en Yanque que en Sumbay y un 40 % más en Imata que en Sumbay\, e sto dentro de los 50 m con respecto al eje de la cascada\, esta diferencia va disminuyendo a medida que aumentamos la energía del primario\, hasta hacerse aproximadamente cero a altas energías. Para la componente muónic a se observa que la densidad de partículas es baja incluso a altas energ ías\, observándose una producción de muones alrededor de los 50000 GeV de energía del rayo gamma primario.\n\nhttps://indico.uni.edu.pe/event/11 0/contributions/495/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/495/ END:VEVENT BEGIN:VEVENT SUMMARY:ESTUDIO TEÓRICO DE ADSORCIÓN Y OXIDACION DE INDOL SOBRE GRAFENO DTSTART;VALUE=DATE-TIME:20211218T134500Z DTEND;VALUE=DATE-TIME:20211218T140000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-493@indico.uni.edu.pe DESCRIPTION:Speakers: Danna Villca Centellas (Universidad Mayor de San An dres)\nLa detección de indol resulta de interés clínico y ambiental [1- 2]. Se emplean (bio)sensores de base carbonosa para su detección. Por eso es necesario que el indol se adsorba sobre la superficie del electrodo y se oxide.\nMediante cálculo teórico empleando Quantum ESPRESSO con pseud opotenciales UltraSoft e interacciones de van der Waals\, se estudió: ads orción y oxidación de indol (ROI) sobre grafeno. La celda unidad es hexa gonal de 12.33 Å x 12.33 Å x 15 Å con condiciones periódicas de contor no. La lámina de grafeno consta de 50 átomos de C. \nEl indol se adsorbe en posición paralela a la superficie con una energía de adsorción pref erencial de -0.97 eV. Se analizó el cubrimiento de la superficie en funci ón de la concentración en solución (0.1 a 100 µM) mediante una isoterm a de adsorción de Langmuir\, encontrando cubrimientos mayores al 0.90. \n Se analizaron diferentes mecanismos para la ROI\, se optimizaron los camin os de mínima energía y se determinaron las energías de activación. La primera etapa presentó barreras de 1.446 eV y 0.00122 eV sin y sobre gra feno\, mientras la segunda etapa resultó espontanea. Finalmente\, en la a proximación de campo medio se simulo el voltagrama correspondiente al pic o de oxidación.\n\nhttps://indico.uni.edu.pe/event/110/contributions/493/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/493/ END:VEVENT BEGIN:VEVENT SUMMARY:The size and composition influences on the structural and thermody namic properties of Al-Fe nanoalloys during melting and solidification beh avior DTSTART;VALUE=DATE-TIME:20211216T161500Z DTEND;VALUE=DATE-TIME:20211216T164500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-473@indico.uni.edu.pe DESCRIPTION:Speakers: Gustavo Cuba Supanta (Universidad Nacional Mayor de San Marcos)\nIn this work\, the relevance of size and composition in the s tructural and thermodynamic properties of Al-Fe nanoalloys are studied usi ng molecular dynamics simulations. Our results indicate a linear character of the melting temperature as a function of the inverse nanoalloy size fo r Al\, Fe\, and Al50Fe50 systems. Furthermore\, body-centered cubic\, hexa gonal close-packed\, and local icosahedral structures are observed at room temperature for cooled Al$_{50}$Fe$_{50}$ nanoalloy with sizes greater th an a thousand atoms. Moreover\, the cohesive energy\, nanoalloy radius\, a nd surface effect of Al$_{50}$Fe$_{50}$ systems roughly reproduce the scal ing law. In addition to composition\, these effects reveal that structural identification and atomic mobility of Al and Fe atoms strongly depend on the composition $x$ in Al$_{100−x}$Fe$_{x}$ nanoalloys. Also\, it is fou nd that the melting temperature can be tuned with the size and composition . Likewise\, the liquid-to-crystalline phase transition is extensively inf luenced by the Fe composition in cooled Al$_{100−x}$Fe$_{x}$ nanoalloys. Finally\, the cohesive energy and the nanoalloy radius show a quadratic d ependence with composition.\n\nhttps://indico.uni.edu.pe/event/110/contrib utions/473/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/473/ END:VEVENT BEGIN:VEVENT SUMMARY:Spin-Orbit Coupling Effect over Kondo Temperature and Thermoelectr ic transport Properties of a Quantum Dot DTSTART;VALUE=DATE-TIME:20211216T154500Z DTEND;VALUE=DATE-TIME:20211216T161500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-468@indico.uni.edu.pe DESCRIPTION:Speakers: Marco A. Manya (Federal Fluminense University)\nIn t his work\, we present the research results of the spin-orbit coupling effe ct over Kondo Temperature and thermoelectric transport properties through a quantum dot. The problem is modeled as a single impurity Anderson model in the presence of the spin-orbit interaction which mixes the spins of the conduction electrons\, and consequently\, the SU(2) spin symmetry\, impor tant to the Kondo state of the system is broken. The SU(2) symmetry is rec overed doing a spin rotation along the axis $\\hat{r}$\, where the system form Kondo many body singlet state. On this new quantization axis\, the hy bridization function is diagonal\, the Haldane formula for the Kondo tempe rature is renormalized by spin-orbit interaction\, The thermoelectric tran sport properties\, it was observed that the electrical\, thermal conductan ce\, and the thermopower have universality behavior with the spin-orbit in teraction\, and similarly we observe that the Wiedemann-Franz law and the ZT improve with the spin-orbit interaction.\n\nhttps://indico.uni.edu.pe/e vent/110/contributions/468/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/468/ END:VEVENT BEGIN:VEVENT SUMMARY:Anisotropic Gold Nanoparticles and Bio-applications. DTSTART;VALUE=DATE-TIME:20211216T190000Z DTEND;VALUE=DATE-TIME:20211216T200000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-486@indico.uni.edu.pe DESCRIPTION:Speakers: Karla Santacruz Gómez ( Universidad de Sonora)\nG old nanoparticles exhibit peculiar optical and electronic properties that make them excellent candidates for biomedical applications. Such is the ca se of the plasmonic photothermal therapy (PPTT)\, which refers to the effi cient conversion of\nphoton energy into heat (in the range of 40-46 oC) by using metallic nanoparticles in combination with laser irradiation. The P PTT efficiency depends on the localized surface plasmon resonance (LSPR) p henomenon\, which is affected by the metallic nanoparticle morphology (siz e\, shape and composition).\nIn this work\, different morphologies of gold nanoparticles such as nanospheres\, nanorods and nanostars were synthetiz ed. During these presentations\, TEM\, DLS and UV-VIS characterization wil l be presented. Additionally\, their localized surface plasmon will be dis cussed and how it is affected by the different configurations of the gold nanoparticles.\n\nhttps://indico.uni.edu.pe/event/110/contributions/486/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/486/ END:VEVENT BEGIN:VEVENT SUMMARY:Transporte de Calor por Ondas Electromagnéticas Superficiales DTSTART;VALUE=DATE-TIME:20211218T191500Z DTEND;VALUE=DATE-TIME:20211218T194500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-502@indico.uni.edu.pe DESCRIPTION:Speakers: Jose Ordonez (CNRS)\nEn este trabajo\, demostramos e xperimentalmente la mejora de la conductividad térmica.Hemos encontrado q ue la conductividad térmica en el plano de una película de SiO2 de 20 nm de espesor a temperatura ambiente es casi el doble de su contraparte fon ónica [2]. Esta clara mejora también es válida para una película de Si N de 30 nm de espesor\, cuando su temperatura aumenta de 300 a 800 K [3]. Estos resultados demuestran que las nano películas polares más delgadas y/o más calientes exhiben conductividades térmicas más altas debido a l a propagación de fonón-polaritones superficiales. Mediciones adicionales de la difusividad térmica revelan que la difusividad térmica de una pel ícula de SiO2 también aumenta a medida que disminuye su espesor\, de mod o que la relación de conductividad térmica/difusividad térmica (capacid ad calorífica volumétrica) permanece casi independiente del espesor de l a película. Por tanto\, estos resultados experimentales demuestran la exi stencia de un nuevo canal de calor a nano escala y proporcionan una nueva vía para diseñar nano materiales térmicamente conductores.\n\nhttps://i ndico.uni.edu.pe/event/110/contributions/502/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/502/ END:VEVENT BEGIN:VEVENT SUMMARY:SPECTRAL DISTRIBUTION OF OVERIRRADIANCE EVENTS IN LIMA AND THE POS SIBLE CLOUDS' CONFIGURATION IN THE SKY DTSTART;VALUE=DATE-TIME:20211216T164500Z DTEND;VALUE=DATE-TIME:20211216T171500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-476@indico.uni.edu.pe DESCRIPTION:Speakers: Marco Antonio Zamalloa Jara (UNSAAC)\nThis work stud ies the impact of overirradiance events on the irradiance’s spectral dis tribution quantified by the average photon energy (APE). The experimental data were measured on a tilted surface in Lima\, Peru\, from October 2019 to March 2020. Due mainly to Lima’s low latitude\, the spectrum is blue- shifted concerning the AM1.5G spectrum. The clear‑sky‑tilted index was defined and calculated using the experimental and simulated irradiance da ta from the PVLIB database. Based on the clear-sky‑tilted index\, we dif ferentiate between clear sky\, cloudy sky\, and overirradiance events. For cloudy conditions\, the APE increases\, i.e. the spectrum is blue-shifted relative to the clear sky. Whereas\, for overirradiance events\, the APE decreases due to a red-shifted spectrum. This red-shift was observed for a ll the overirradiance events studied during the experimental campaign. Fin ally\, the cloud optical depth (COD) data from the satellite GOES-16 shows that thick clouds are present when overirradiance events occur. Thus\, it may give new insights into the cloud enhancement phenomena.\n\nhttps://in dico.uni.edu.pe/event/110/contributions/476/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/476/ END:VEVENT BEGIN:VEVENT SUMMARY:Postgrado en Ciencias en la UNSAAC con menciones en (1) Arqueoast ronomía\, (2) Arqueofísica\, (3) Astronomía y (4) Rayos Cósmicos DTSTART;VALUE=DATE-TIME:20211216T200000Z DTEND;VALUE=DATE-TIME:20211216T204500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-482@indico.uni.edu.pe DESCRIPTION:Speakers: Cesar Augusto Zen Vasconcellos (UFRGS/ICRANet)\nEsta propuesta tiene como objetivo la implementación de cuatro menciones en e l curso de Maestría en Ciencias\, ya existente en la UNSAAC\, en (1) Arqu eoastronomía\, (2) Arqueofísica\, (3) Astronomía y (4) Rayos Cósmico s y la creación de un Doctorado en Ciencias\, en esas cuatro menciones. E l presente documento se elaboró a partir de una propuesta concebida en el primer Congreso Internacional en Astrofísica y Arqueoastronomía de la U NSAAC que sesionó en el Auditorio de la Facultad de Ciencias los días 4\ , 5 y 6 de julio de 2019. La presente propuesta representa una ampliación de las ideas desarrolladas en la reunión mencionada y fue escrito en un formato que cumple con los requisitos institucionales.\n\nhttps://indico.u ni.edu.pe/event/110/contributions/482/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/482/ END:VEVENT BEGIN:VEVENT SUMMARY:XRF elemental analysis of ancient manuscripts inks of Regional Arc hive of Cusco DTSTART;VALUE=DATE-TIME:20211217T161500Z DTEND;VALUE=DATE-TIME:20211217T164500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-485@indico.uni.edu.pe DESCRIPTION:Speakers: Celina Luízar Obregón (Universidad Nacional de San Antonio Abad del Cusco)\nRecently we began studies about inks in ancient documents using non-destructive elemental analysis. It is very important b ecause there were no studies of this kind in Peru. This works had the obje ctive of analysing six manuscripts related to Peruvian history\, looking f or information about the inks manufacture development in Peru. We used a h and-handled X-ray fluorescence spectrophotometer Olympus Delta Premium in soil mode\, in situ\, with two repetitions in each analysis point. The res ults show S and Fe's presence related to iron gall ink.\nNevertheless\, we also found the minor elements Pb\, Cd\, Cr\, Ti\, As\, Zn\, Cu\, and Ag. Lead\, Cadmium\, Zinc\, Copper and Silver proportions are not usual in Eur opean inks of the same period\; for this reason\, we hypothesised that the original writers used regional raw materials for making it. Moreover\, it implies that people in century XVIII Peruvians could produce their own in k following the European recipes.\n\nhttps://indico.uni.edu.pe/event/110/c ontributions/485/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/485/ END:VEVENT BEGIN:VEVENT SUMMARY:Puesta en marcha de un laboratorio para el estudio de tecnologías fotovoltaicas bifaciales bajo las condiciones climáticas de Lima DTSTART;VALUE=DATE-TIME:20211217T214500Z DTEND;VALUE=DATE-TIME:20211217T220000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-492@indico.uni.edu.pe DESCRIPTION:Speakers: Michael Anthony García Huamaní (MatER-PUCP)\nEn es te estudio se desarrolló la ampliación del Laboratorio de investigación de tecnologías fotovoltaicas de la Pontificia Universidad Católica del Perú (PUCP) para el estudio de módulos bifaciales de distintas tecnolog ías y en dos orientaciones de instalación. Se instalaron dos estructuras acondicionadas para módulos bifaciales: una inclinada a 15° orientada h acia el norte y otra vertical a 90° orientando las caras de los módulos al este-oeste. Las estructuras cuentan con la instrumentación adecuada pa ra el estudio de la producción energética y la curva característica cor riente-voltaje de los módulos bifaciales\, de esta manera se podrá profu ndizar en los beneficios y desafíos del uso de estas tecnologías en nues tra región.\n\nhttps://indico.uni.edu.pe/event/110/contributions/492/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/492/ END:VEVENT BEGIN:VEVENT SUMMARY:Chirally coupled fermion-kink system\, multi-frequency sine-Gordon and topological sectors DTSTART;VALUE=DATE-TIME:20211217T213000Z DTEND;VALUE=DATE-TIME:20211217T214500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-478@indico.uni.edu.pe DESCRIPTION:Speakers: Jorge Mauricio Jaramillo Monsalve (INSTITUTO DE F ÍSICA - UFMT )\nA two-dimensional field theory which describes a fermion- kink system is studied. The analytical solutions of the system are obtaine d by using the tau function approach. We studied the relationships of the kink and the normalizable fermion bound states on the parameters of the mo del\, which involve a fermion-scalar coupling and scalar field self-coupli ng. As submodels we uncover an integrable Toda model coupled to the fermio n and the non-integrable double sine-Gordon model. It is shown that the ba ckreaction of the localized fermions modifies appreaciably the kink soluti ons\, in particular\, it shows the oscillation of the profile of the kink and violatesof the reflection symmetry of the configuration.\n\nhttps://in dico.uni.edu.pe/event/110/contributions/478/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/478/ END:VEVENT BEGIN:VEVENT SUMMARY:ESTUDIO ESTRUCTURAL Y MICROESTRUCTURAL DE LA ALEACIÓN AlXFe(1-X) (X=0\,25\; 0\,5 y 0\,75) OBTENIDA POR MOLIENDA MECÁNICA DTSTART;VALUE=DATE-TIME:20211217T211500Z DTEND;VALUE=DATE-TIME:20211217T213000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-471@indico.uni.edu.pe DESCRIPTION:Speakers: Ronald David Rocha Cabrera (UNMSM)\nLas aleaciones m etálicas Fe-Al en las regiones ricas en hierro son de importancia debido a sus interesantes propiedades magnéticas presentes en su estado nanocrit alino en el cual son usados en dispositivos de memoria magnética y en sen sores magnéticos\, mientras que para regiones ricas en aluminio\, estas a leaciones son usadas en la industria automotriz\, espacial y marítima a c ausa de su baja densidad y excelente resistencia a la corrosión. En el pr esente trabajo\, realizaremos el estudio estructural y microestructural de la aleación AlxFe(1-x) con x=0\,25\; 0\,5 y 0\,75. Primero las muestras fueron sintetizadas por la técnica de horno de arco (HA) y posteriormente fueron tratadas a las temperaturas de 600C\, 950C y 1000C por 48\, 290 y 48 horas respectivamente. Después del tratamiento térmico a la temperatu ra de 6000C\, las muestras fueron nanoestructuradas por la técnica de mol ienda mecánica (MM)\, el estudio estructural fue realizado por las técni cas de difracción de rayos X (DRX) y espectroscopia Mössbauer (SM). Par a la composición Al25Fe75 y Al50Fe50 ferromagnética y paramagnética\, d urante el proceso de nanoestructuración se observa la formación de Fe2O3 (Al)\, además\, de la solución sólida Fe(Al) para la composición Al75F e25\, nanoestructurada\, se observa la formación del intermetálico Al13F e4 y la solución sólida Fe(Al).\n\nhttps://indico.uni.edu.pe/event/110/c ontributions/471/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/471/ END:VEVENT BEGIN:VEVENT SUMMARY:OAUNI detections of Supernovae DTSTART;VALUE=DATE-TIME:20211217T200000Z DTEND;VALUE=DATE-TIME:20211217T210000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-491@indico.uni.edu.pe DESCRIPTION:Speakers: Antonio Pereyra (Instituto Geofísico del Perú / Un iversidad Nacional de Ingeniería)\nWe report photometric detections of su pernovae events gathered at UNI Astronomical Observatory located at the ce ntral peruvian Andes. Several events were detected on the last years\, inc luding Type-Ia and Type-II supernovae. We show the special calibration pro cess used to quantify the proper magnitude associated to each event. When multicolor photometry is available\, color-color diagnostic diagram were u sed to compute the supernova time post maximum brightness. In additional\, our photometry was used to construct light curves and let to compare our data with empirical supernova models. The last process was used in one cas e to infer the stretch parameter in order to confirm previous classificati on. This project is supported by UNI-VRI and Concytec (grants 102-2015\, 1 33-2020).\n\nhttps://indico.uni.edu.pe/event/110/contributions/491/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/491/ END:VEVENT BEGIN:VEVENT SUMMARY:The Hubble constant in the Local Universe DTSTART;VALUE=DATE-TIME:20211217T190000Z DTEND;VALUE=DATE-TIME:20211217T200000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-490@indico.uni.edu.pe DESCRIPTION:Speakers: Armando Bernui (Observatorio Nacional)\nMeasurements of the Hubble constant in the Local Universe are difficult due to the pec uliar velocities. The presence in the Local Universe of under-dense and ov er-dense regions (e.g.\, hosting clusters of galaxies like Virgo\, Coma\, Hercules\, etc.) determine the dynamical features of nearby galaxies openi ng a competition between the gravitational field attraction against the co smic Hubble expansion. In fact\, according to the Hubble-Lemaitre law\, th e expansion rate of the universe is low at small distances from us and in such a case peculiar velocities of nearby galaxies compete with the local Hubble flow\, affecting our measurement of their radial recessional veloci ties. To perform a measurement of the Hubble constant we use the ALFALFA s urvey data\, which mapped extra-galactic HI sources in the Local Universe. For our analyses we select a sub-sample of the ALFALFA catalog\, sources with redshifts 0.01 - 0.02 because their distances and velocities were mea sured independently of the Hubble-Lemaitre law.\n\nhttps://indico.uni.edu. pe/event/110/contributions/490/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/490/ END:VEVENT BEGIN:VEVENT SUMMARY:Efectos de la técnica 2E en la medición del promedio de la multi plicidad neutrónica en función de la masa de los fragmentos de la reacci ón 239Pu(nth\,f) DTSTART;VALUE=DATE-TIME:20211218T184500Z DTEND;VALUE=DATE-TIME:20211218T191500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-466@indico.uni.edu.pe DESCRIPTION:Speakers: Modesto Montoya (Universidad Nacional de Ingeniería )\nSe simula por el método Monte Carlos la medición por la técnica 2E d el promedio de la multiplicidad neutrónica en función de la masa de los fragmentos de la reacción 239Pu(nth\,f). Como valores simulados como prim arios se considera la forma diente de sierra aproximada a valores experime ntales. Como resultado se confirma sobrestimación de los valores correspo ndientes a las masa alrededor de 115\, obtenido simulando emisión de neut rones con cuasi velocidad nula respecto al centro de masa. Simulando emisi ón de neutrones con energía del orden de 1 MeV\, se reproduce sobreestim ación de valores para las masas cercanas a 80 y 160\, respectivamente.\n\ nhttps://indico.uni.edu.pe/event/110/contributions/466/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/466/ END:VEVENT BEGIN:VEVENT SUMMARY:Seismic source of 1966 Huacho Peru earthquake (Mw 8.1) from tsunam i waveform inversion DTSTART;VALUE=DATE-TIME:20211217T164500Z DTEND;VALUE=DATE-TIME:20211217T171500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-487@indico.uni.edu.pe DESCRIPTION:Speakers: Cesar Jimenez (UNMSM)\nIn this presentation\, the di stribution of the tsunami source is obtained for the Huacho earthquake of October 17 1966 at 21:41 UTC. It was a strong earthquake that shook the ce ntral region of Peru\, causing 100 fatalities. The maximum intensity was r eported in the cities of Supe (probably IX MM) and Huacho (VIII MM). A cos eismic effect was a tsunami that inundated some coastal towns and resorts\ , such as Casma and Tortugas. The tsunami waveform recorded in the station s of Chimbote\, Callao and Marcona were analyzed and processed to obtain t he parameters of the tsunami source by an inversion process\, in which the simulated tsunami waveform was compared with the observed waveform using the method of non-negative least squares. The maximum slip was 6 m located around the epicentre\, the zone of greatest energy release was located of fshore the city of Barranca\, which is consistent with the maximum intensi ty values reported. The tsunamigenic scalar moment obtained was 2.05$\\tim es$10$^{21}$ Nm\, that is equivalent to a moment magnitude of Mw 8.1. We s uggest that there is a high potential for the generation of a tsunamigenic earthquake in the central region of Peru\, despite the occurrence of the 1966 Peruvian earthquake.\n\nhttps://indico.uni.edu.pe/event/110/contribut ions/487/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/487/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulation of a cost-affordable Cosmic Ray Muon Tomographer DTSTART;VALUE=DATE-TIME:20211216T173000Z DTEND;VALUE=DATE-TIME:20211216T174500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-484@indico.uni.edu.pe DESCRIPTION:Speakers: Javier Rengifo Gonzáles (Pontificia Universidad Cat ólica del Perú)\nCosmic rays arrive at Earth and produce particle shower s\, especially atmospheric muons\, which can be used to image a volume due to multiple Coulomb scattering and absorption of different materials. In this work\, we simulate the cosmic-ray flux and their showers using CORSIK A. Then\, we perform a GEANT4 simulation of a prototype topographer compos ed of two detectors\, each made of two planes of an array of sensors. The sensors are based on plastic scintillators and silicon photomultipliers ta rgeting new and cost-affordable technology. In order to image a volume\, w e study the possibility to discriminate different materials (e.g. lead\, c oncrete\, iron\, water\, aluminium) by measuring the absorption and incomi ng and outgoing angles of muons passing through these materials. We evalua te a realistic scenario and optimize the geometry and angular resolution o f the array using simulations with the aim to scan structures such as larg e buildings and natural formations with muon tomography.\n\nhttps://indico .uni.edu.pe/event/110/contributions/484/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/484/ END:VEVENT BEGIN:VEVENT SUMMARY:Deformed Toda model coupled to matter spectra: Majorana zero-modes \, bound states in-gap and in the continuum. DTSTART;VALUE=DATE-TIME:20211218T150000Z DTEND;VALUE=DATE-TIME:20211218T153000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-474@indico.uni.edu.pe DESCRIPTION:Speakers: Harold Blas (Institute of Physics-UFMT\, Brazil)\nA deformed Toda model coupled to Dirac field (DATM) is considered. The DATM is regarded as a quasi-integrable model since it is a deformation of the i ntegrable affine Toda model coupled to matter by introducing a scalar pot ential. It is defined as a fermion and scalar fields chirally coupled plus a scalar self-coupling potential. We show that it has remarkable properti es with spectra compossed by Majorana zero-modes\, in-gap and in the conti nuum bound states. In order to find the soliton-fermion solutions we make use of the tau function formalism. Our results may find many applications in several branches of non-linear physics\, such as QCD$_2$\, superfluidit y\, superconductivity and quantum computing.\n\nhttps://indico.uni.edu.pe/ event/110/contributions/474/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/474/ END:VEVENT BEGIN:VEVENT SUMMARY:Re-entrance Phase in spin-crossover nanoparticles DTSTART;VALUE=DATE-TIME:20211218T140000Z DTEND;VALUE=DATE-TIME:20211218T150000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-480@indico.uni.edu.pe DESCRIPTION:Speakers: Jorge Linares (Universidad de Versailles / Paris-Sal ay)\nWe study the size effec on spin crossover nanoparticles in a 2D Ising -like model subjet to the interactions with the molecules at the surface. We determined the density of macrostates by using entropic sampling Monte Carlo technique. We found the decreasing the size of the nanoparticles lea ds to a global increase of the effective interaction. This unsual behavior is explained in this contribution.\n\nKeywords : spin-crossover\, phase t ransition\, surfaces effects\, Monte Carlo simulations\n\nhttps://indico.u ni.edu.pe/event/110/contributions/480/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/480/ END:VEVENT BEGIN:VEVENT SUMMARY:Why pseudo-complex General Relativity and application to gravitati onal waves DTSTART;VALUE=DATE-TIME:20211217T143000Z DTEND;VALUE=DATE-TIME:20211217T153000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-472@indico.uni.edu.pe DESCRIPTION:Speakers: Peter Hess ()\nA brief review on the pseudo-complex General Relativity is presented. The "why" this theory is the only algebra ic extension is argued and its relation to earlier attempts is given. The theory is applied to the structure of accretion disks around black holes a nd to gravitational waves. Differences are discussed.\n\nhttps://indico.un i.edu.pe/event/110/contributions/472/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/472/ END:VEVENT BEGIN:VEVENT SUMMARY:LA-CoNGA physics: an open-science education collaboration between Latin America and Europe for High Energy Physics DTSTART;VALUE=DATE-TIME:20211218T194500Z DTEND;VALUE=DATE-TIME:20211218T201500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-477@indico.uni.edu.pe DESCRIPTION:Speakers: José Ocariz (Université de Paris and LPNHE)\nThe H igh-Energy community has been pioneer in establishing Virtual Research and Learning Networks (VRLCs)[1]\, international consortiums to train young s cientists. In this talk we discuss the ***LA-CoNGA physics*** example: La tin American alliance for Capacity buildiNG in Advanced physics) [2].\n\n* **LA-CoNGA physics*** aims to support the modernization of the university infrastructure and the academic offer in advanced physics in four Latin Am erican countries: Colombia\, Ecuador\, Peru and Venezuela. This VRLC is co mposed of 3 partner universities in Europe and 8 in Latin America\, high-l evel scientific partners (CEA\, CERN\, CNRS\, DESY\, ICTP)\, and several a cademic and industrial partners. The project is co-funded by the Education \, Audiovisual and Culture Executive Agency (EACEA) of the European Commis sion.\n\nOpen Science education and Open Data are at the heart of our oper ations. In practice LA-CoNGA physics has created a set of postgraduate cou rses in Advanced Physics (high energy physics and complex systems) that ar e common and inter-institutional\, supported by interconnected instrumenta tion laboratories and an open e-learning platform. This program is inserte d as a specialization in the Physics masters of the 8 Latin American partn ers in Colombia\, Ecuador\, Peru and Venezuela. It is based on three pilla rs: theory/phenomenology\, data science and scientific instrumentation.\n\ n[1] http://www.oecd.org/sti/inno/international-distributed-research-infra structures.pdf\n[2] http://laconga.redclara.net\n\nhttps://indico.uni.edu. pe/event/110/contributions/477/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/477/ END:VEVENT BEGIN:VEVENT SUMMARY:Geofisica aplicada a la arqueologia DTSTART;VALUE=DATE-TIME:20211216T143000Z DTEND;VALUE=DATE-TIME:20211216T153000Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-488@indico.uni.edu.pe DESCRIPTION:Speakers: Nicola Masini (CNR-Potenza\, Italia)\nhttps://indico .uni.edu.pe/event/110/contributions/488/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/488/ END:VEVENT BEGIN:VEVENT SUMMARY:A possible path to design higher temperature superconductors DTSTART;VALUE=DATE-TIME:20211218T201500Z DTEND;VALUE=DATE-TIME:20211218T211500Z DTSTAMP;VALUE=DATE-TIME:20260305T174700Z UID:indico-contribution-110-475@indico.uni.edu.pe DESCRIPTION:Speakers: Jose Alarco (Queensland University of Technology)\nD esign of new materials with tailored properties requires detailed structur al information in real and reciprocal spaces. Our recently published THz s ynchrotron experiments have provided evidence for the key role of bonding symmetry on superconductivity of MgB2 compounds. Another group of recent e xperiments has shown that external electric fields can control the superco nducting transition temperature\, via piezoelectric related phenomena acco rding to DFT predictions. Further analyses of these results indicate that electric fields generated with small voltages induce structural and electr on population effects\, which resemble and are equivalent to those of very high pressures (in the tens of GPa’s). Given that the recently discover ed families of room temperature superconductors require very high pressure (in the hundreds of GPa’s)\, our results suggest that electric fields o f appropriate magnitude and symmetry may induce the correct conditions for higher temperature superconductivity\, with more easily achievable means. The experimental evidence\, calculation results and evolution of ideas wi ll be discussed.\n\nhttps://indico.uni.edu.pe/event/110/contributions/475/ LOCATION:Cusco. Peru URL:https://indico.uni.edu.pe/event/110/contributions/475/ END:VEVENT END:VCALENDAR