Perseid-Fact-Sheet-v.2.pdf
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Hoja informativa sobre las Perseidas La noche del 11 al 12 de agosto de 2023 ¡Contemos juntos los deseos! Estés donde estés podrás disfrutar viendo cómo los meteoritos surcan el cielo. El pico de la lluvia se produce durante la noche del 11 al 12 de agosto, pero un goteo de meteoros puede verse días antes y después. Se pueden ver de 30 a 70 estrellas fugaces por hora, dependiendo del lugar de observación.
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- Meteors are small bits of interplanetary dust and debris that burn up as they collide with Earth's atmosphere during meteor showers. Meteor showers occur when Earth passes through streams of debris left behind by comets and asteroids.
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Our solar system includes the Sun, eight planets and their moons, dwarf planets, asteroids, comets, and meteorites. The planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Small solar system bodies include asteroids, most of which lie between Mars and Jupiter, and comets, which are icy bodies that produce tails when near the Sun. Pluto was reclassified as a dwarf planet in 2006.
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1) Comets, asteroids, and meteoroids are remnants from the formation of the solar system. Comets originate from the Oort Cloud or Kuiper Belt, while asteroids originate from the Main Asteroid Belt.
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STUDY OF THE COMET 12P/PONS-BROOKS.A. Q. Vodniza1, 1Director of University of...
STUDY OF THE COMET 12P/PONS-BROOKS.A. Q. Vodniza1, 1Director of University of...SOCIEDAD JULIO GARAVITO
ntroduction: This comet was discovered by Jean-
Louis Pons on July 12/1812, and re-discovered by
William Robert Brooks in 1883. It’s believed that
Chinese astronomers could have observed it back in
the year 1300 [1]. This comet will reach its perihelion
on April 21/2024 at a distance of 0.781 AU [2]. It will
get closest to Earth on June 2 of the same year. The
cometary nucleus is approximately 17 +/- 6 kilometers
[3]. The comet is famous for its explosions: at least
seven major explosions have been observed since the
19th century and in 2023 they have been detected on
July 20, October 5, November 1, November 14 [4].
The comet is of the criovolcanic type and produces
explosions that are created by the degassing of the
carbon dioxide in the nucleus. Unlike most comets, the
gas and ice inside this comet accumulate so much that
this celestial object can explode violently, shooting
material called cryomagma through large cracks in the
nucleus’ shell [5].
Methodology:V Encuentro Internacional de Astronomía - Modelos de Galaxias
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[3]. The comet is famous for its explosions: at least
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carbon dioxide in the nucleus. Unlike most comets, the
gas and ice inside this comet accumulate so much that
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material called cryomagma through large cracks in the
nucleus’ shell [5].
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De esta manera supe una segunda cosa muy importante: su planeta de origen era apenas más grande que una casa
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Cuando un astrónomo descubre uno de estos planetas, le da por nombre un número. Le llama, por ejemplo, «el asteroide 3251» ((423624) Udeantioquia)Interface QFT_A-P_P and GW Astronomy_HJMC_March_2024.pdf
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de Ondas
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El modelo lagrangiano está escrito en una notación compacta que utiliza símbolos y operadores de la teoría cuántica de campos, como derivadas covariantes, tensores de intensidad de campo, matrices de Dirac y generadores de grupos de calibre.
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Fuente: https://www.space.com/how-do-astronauts-go-to-bathroom-in-space-toilet-
guide
Publicado el 4 de abril de 2024
¡Para ir con valentía! Los astronautas pueden parecer sobrehumanos, pero tienen
las mismas necesidades básicas que el resto de nosotros, y eso incluye usar el baño
en el espacio.
¿Cómo usan los astronautas el baño en el espacio? Es un poco complicado... (Crédito de la imagen:
Daisy Dobrijevic producida en Canva)
"Hazlo con el traje"
Esas fueron las desconcertantes palabras que el primer estadounidense en el
espacio, Alan Shepherd, escuchó el 5 de mayo de 1961, cuando avisó al equipo de
la plataforma de lanzamiento que necesitaba orinar. Shepherd hizo lo que le
indicaron, orinó en su traje espacial y provocó un cortocircuito en sus biosensores
electrónicos.
El traje espacial de Shepherd no estaba equipado con un sistema de recolección de
orina porque no se esperaba que su misión durara lo suficiente como para que
necesitara orinar.
Información editada y compartida vía:
Elkin Ramiro Mesa Ochoa
Médico - Universidada de Antioquia - Alma Máter UdeA.
Sociedad Julio Garavito para el Estudio de la Astronomía (SJG - Astronomy); Ciudad de Medellín (Distrito Espacial, Especial en Ciencia, Ingeniería, Tecnología, Innovación, Creatividad e Industria Aeroespacial), Antioquia-Departamento Aeroespacial de la República de Colombia, América del Sur.
Sor Maria Celeste-Dios y Cielo - La Ciencias Oculta en el Convento
https://youtube.com/live/y8HxJIFedcM
Agradecemos muy especialmente a Olga Lucía Penagos Eastman, diseñadora gráfica y aficionada a la astronomía, por la elaboración del afiche de invitación a nuestra charla.
Sociedad Julio Garavito para el Estudio de la Astronomía (SJG - Astronomy); Ciudad de Medellín (Distrito Espacial, Especial en Ciencia, Ingeniería, Tecnología, Innovación, Creatividad e Industria Aeroespacial), Antioquia-Departamento Aeroespacial de la República de Colombia, América del Sur.
American Eclipse A Nation’s Epic Race to Catch the_240225_095603
TO BE HUMAN, IT SEEMS, IS TO SEEK PURPOSE IN OUR
TRANSIENT lives. Many people find meaning in the eyes of their children
or in the words of Scripture, but I discovered it on a beach outside a Hyatt
Regency in Aruba. I had journeyed south that winter of 1998 to escape the
snows of Boston and, more notably, to take in nature’s grandest spectacle, a
total solar eclipse, which would cross the Caribbean on a Thursday
afternoon in late February. As a science journalist, I thought I knew what to
expect. For 174 seconds, the blue sky would blacken, stars would appear,
and the sun would manifest its ethereal outer atmosphere, the solar corona.
What I had not anticipated was my own intense reaction to the display.
For three glorious minutes, I felt transported to another planet, indeed to a higher plane of reality, as my consciousness departed the earth and I gaped at an alien sky. Above me, in the dim vault of the heavens, shone an incomprehensible object. It looked like an enormous wreath woven from silvery thread, and it hung suspended in the immensity of space, shimmering.
As I stood transfixed by this vision, I felt something I had never experienced before—a visceral connection to the universe—and I became an umbraphile, an eclipse chaser, one who has since obsessively stalked the moon’s shadow —across Europe, Asia, Australia—for yet a few more fleeting moments of lunar nirvana.
Citación Asamblea Estatutaria - Invita Junta Directiva de SJG 2024
Medellín, viernes 23 de febrero de 2024.
CITACIÓN A LA ASAMBLEA ANUAL ORDINARIA
La junta directiva de la SOCIEDAD JULIO GARAVITO convoca a todos los miembros a la Asamblea Anual Ordinaria, que se efectuará el día sábado 23 de marzo de 2024 a las 10:00 a.m. en forma virtual, en la plataforma: https://meet.jit.si/asambleasjg2024.
Nota: La clave de acceso a la sala de la asamblea será compartida a los socios el día sábado 23 de marzo con dos horas de anticipación en el grupo de WhatsApp de la Sociedad.
El orden del día será el siguiente:
ORDEN DEL DÍA
1º.- Verificación del quórum.
2º.- Nombramiento de la Comisión de Aprobación del Acta. 3º.- Aprobación del Orden del Día.
4º.- Informe del Director. 5º.- Informe del Tesorero.
6º.- Informe del Revisor Fiscal.
7º.- Designación de la nueva Junta Directiva. 8º.- Designación del Revisor Fiscal.
9º.- Designación del Tesorero. 10º.-Proposiciones y varios.
NOTA:
Se recomienda estar a la hora indicada; además se recuerda que cada miembro de número puede representar por escrito sólo a otro miembro de número que no pueda asistir.
Atentamente:
JUNTA DIRECTIVA SOCIEDAD JULIO GARAVITO.
Mujeres en astronomía_Luz Angela Cubides_17 de Febrero_ 2024
https://youtube.com/live/rIIkZoSgljs
Agradecemos a Paola Restrepo, Astrónoma y Artísta por su apoyo en la elaboración del afiche de invitación a nuestra charla de la Sociedad.
En ésta charla, Mujeres en la astronomía:
Recordaremos a algunas mujeres que han escogido observar el cielo, y explicarlo, y cuyos logros han sido reconocidos.
También abriremos un espacio para conversar sobre la situación actual de las mujeres que quieren dedicarse a la Astronomía y a las Ciencias Espaciales.
Por:
Luz Angela Cubides González.
Astrónoma (2004), Magíster en Hermenéutica Literaria (2013) y docente.
Amiga Sociedad Julio Garavito para el Estudio de la Astronomía (SJG - Astronomy); Ciudad de Medellín (Distrito Espacial, Especial en Ciencia, Ingeniería, Tecnología, Innovación, Creatividad e Industria Aeroespacial), Antioquia-Departamento Aeroespacial de la República de Colombia, América del Sur.
Anuario del Real Observatorio Astronómico de Madrid 2024
Portada y contraportada de este Anuario ilustran un resultado
excepcional obtenido durante 2023: la imagen de la sombra central,
disco de acrecimiento y chorro energético en el agujero negro de la
galaxia M87. En la imagen se aprecia directamente cómo se eyecta el
chorro a partir del material que se acreta sobre el agujero negro super-
masivo. El pionero resultado fue obtenido con la red global de telesco-
pios de ondas milimétricas (GMVA), red en la que los radiotelescopios
de Yebes y del IRAM juegan un papel central. Y en el funcionamiento
de estos instrumentos resulta crucial la labor de su personal técnico
y de sus astrónomos, entre ellos los del OAN que prestan su apoyo al
Observatorio de Yebes.
También en 2023, el IGN ha realizado un importantísimo esfuerzo
para mejorar ambos radiotelescopios: el de 40-m en Yebes y el de
30-m del IRAM en Pico Veleta (Granada). En el primero se ha instalado
un espejo secundario con movimiento de balanceo (wobbler) y en el
segundo un nuevo sistema de servomecanismos. Cofinanciadas con
fondos FEDER, estas actuaciones permitirán aumentar la precisión de
ambos instrumentos al límite de las posibilidades actuales de la inge-
niería. Gracias a estas mejoras, se garantiza que los radiotelescopios
permanezcan en la vanguardia científico-tecnológica durante varias
décadas, lo que permitirá a nuestros astrónomos seguir participando
en muchos más descubrimientos y observaciones revolucionarias.
Otro hito importante alcanzado en 2023, de interés para toda la
radioastronomía nacional, ha sido la adhesión formal de España
al tratado internacional del Square Kilometre Array (SKA). De esta
forma, las empresas nacionales participarán en la construcción de
este colosal radiotelescopio, que ya ha comenzado en Australia y en
Sudáfrica, y nuestros astrónomos podrán realizar, desde primera
línea, observaciones pioneras que sin duda transformarán nuestro
conocimiento del universo.
Los artículos de divulgación no pueden faltar en este Anuario.
Ya que pronto se cumplirán 50 años del inicio de la construcción
del Observatorio de Yebes, su director, Pablo de Vicente, nos ilustra
sobre el enorme contenido tecnológico involucrado en la radioastro-
nomía, poniendo énfasis en los importantísimos desarrollos reali-
zados en Yebes. Por su parte, nuestra astrónoma Marina Rodríguez
Baras trata un tema de candente actualidad: la búsqueda de vida en
el sistema solar.
Una guía de los mejores eventos astronómicos de 2024: cuándo, dónde y cómo fo...
Una guía de los mejores eventos astronómicos de 2024: cuándo, dónde y cómo fo...SOCIEDAD JULIO GARAVITO
Este documento proporciona una guía detallada de los principales eventos astronómicos que tendrán lugar en 2024, incluidos eclipses, lluvias de estrellas, planetas visibles y más. Incluye un calendario mes a mes de los eventos, con información sobre fechas, horas y lugares de visibilidad. Además, ofrece consejos sobre cómo planificar la observación y fotografía de estos eventos utilizando la aplicación PhotoPills. El objetivo es ayudar a los lectores a aprovechar al máximo las oportunidadesEstimating_Flight_Characteristics_of_Anomalous_Uni.pdf
Article
Estimating Flight Characteristics of Anomalous
Unidentified Aerial Vehicles
Kevin H. Knuth 1,2,* , Robert M. Powell 2 and Peter A. Reali 2
1 Department of Physics, University at Albany (SUNY), Albany, NY 12222, USA
2 Scientific Coalition for UAP Studies (SCU), Fort Myers, FL 33913, USA;
robertmaxpowell@gmail.com (R.M.P.); preali@cableone.net (P.A.R.)
* Correspondence: kknuth@albany.edu
Received: 21 August 2019; Accepted: 21 September 2019; Published: 25 September 2019
Abstract: Several Unidentified Aerial Phenomena (UAP) encountered by military, commercial, and
civilian aircraft have been reported to be structured craft that exhibit ‘impossible’ flight characteristics.
We consider a handful of well-documented encounters, including the 2004 encounters with the
Nimitz Carrier Group off the coast of California, and estimate lower bounds on the accelerations
exhibited by the craft during the observed maneuvers. Estimated accelerations range from almost
100 g to 1000s of gs with no observed air disturbance, no sonic booms, and no evidence of excessive
heat commensurate with even the minimal estimated energies. In accordance with observations,
the estimated parameters describing the behavior of these craft are both anomalous and surprising.
The extreme estimated flight characteristics reveal that these observations are either fabricated or
seriously in error, or that these craft exhibit technology far more advanced than any known craft on
Earth. In many cases, the number and quality of witnesses, the variety of roles they played in the
encounters, and the equipment used to track and record the craft favor the latter hypothesis that
these are indeed technologically advanced craft. The observed flight characteristics of these craft
are consistent with the flight characteristics required for interstellar travel, i.e., if these observed
accelerations were sustainable in space, then these craft could easily reach relativistic speeds within a
matter of minutes to hours and cover interstellar distances in a matter of days to weeks, proper time.
Keywords: UAP; UAV; UFO; Nimitz; Tic-Tac
WWF- GuiaAnimalesOrigami.pdf
Hola Sociedad Julio Garavito para el Estudio de la Astronomía (SJG-Astronomy),
Soy Silvia, especialista en conservación de WWF Colombia, y me complace enormemente compartir con Ustedes esta guía que hicimos con mucho amor y dedicación para que juntos podamos explorar a los maravillosos animales que habitan en nuestra hermosa Colombia. 🦋🌳
A través del arte del origami, podrás crear tu propia representación de un ágil jaguar o una imponente ballena, sin importar el color ni que quede perfecto y lo mejor de todo, puedes hacerlo con papel reciclado.
¡Esta guía es como tener un pedacito de la naturaleza en tus manos! 🌿
Silvia Vejarano
WWF Colombia, Bogotá Oficina Bogotá Carrera 10 A # 69 A 44, Bogotá, Cundinamarca 111221, Colombia, 443 1550
ARTICULO GEMINIDAS 2023.
El cielo celebra la época decembrina con la lluvia de meteoros de Las Gemínidas, la más
abundante del año. Así es, la noche del miércoles 13 de diciembre desde las 9 p.m. en adelante
pudiéramos comenzar a ver los luminosos trazos meteóricos de “Las Gemínidas”, para este año
tenemos la fortuna de que un día antes ocurrirá la Luna Nueva, lo que significa que no tendremos
el brillo de la luna opacando la visualización de los meteoros. Por lo que inclusive desde el mismo
atardecer pudiéramos estar pendientes a ver si captamos alguna Gemínida.
Para este año 2023 el máximo de actividad ocurrirá las 2:00 pm del jueves 14 de diciembre, así
tanto los días 13 y el 14 de diciembre, desde que salga la constelación de Géminis, por el horizonte
oriental a las 8 pm., estaremos en la posibilidad de disfrutar de este espectáculo celeste durante
toda la noche; se espera que en las mejores condiciones de visibilidad, puedan observarse hasta
150 meteoros por hora, según la Organización Internacional de Meteoros (IMO), sin embargo esto
disminuye drásticamente con la contaminación lumínica del lugar de observación.
Inforamción Compartida por:
Enrique Torres.
Divulgador de Astronomía, Ágora del Cosmos
Información compartida por Enrique Torres:
Amigo Sociedad Julio Garavito para el Estudio de la Astronomía (SJG - Astronomy); Ciudad de Medellín (Distrito Espacial, Especial en Ciencia, Ingeniería, Tecnología, Innovación, Creatividad e Industria Aeroespacial), Departamento de Antioquia, República de Colombia, América del Sur.
POSTER IV LAWCN_ROVER_IUE.pdf
Rover IUE: exploration of the concept from
human factors
León Jaime Restrepo Quirós, José Andrés Zuluaga Ramírez
Grupo de investigación en tecnologías emergentes,
sostenibles e inteligentes – GITESI
Línea de automatización industrial
Facultad de ingeniería, Institución Universitaria de Envigado
Conjunción Luna-Las Pléyades Noviembre 26, 2023.pdf
Gráficas Conjución Luna Pleyades utilizando el Stelarium 23.3
Por:
Elkin Ramiro Mesa Ochoa
Médico - Universidada de Antioquia - Alma Máter UdeA.
Sociedad Julio Garavito para el Estudio de la Astronomía (SJG - Astronomy); Ciudad de Medellín (Distrito Espacial, Especial en Ciencia, Ingeniería, Tecnología, Innovación, Creatividad e Industria Aeroespacial), Antioquia-Departamento Aeroespacial de la República de Colombia, América del Sur.
EL ASTEROIDE APOPHIS_Alberto Quijano Vodniza.pdf
EL ASTEROIDE APOPHIS
Por: Alberto Quijano Vodniza
Master in Physics - University of Puerto Rico
Director of "University of Narino Observatory"
Member of the "American Astronomical Society"
Es común a través de las redes y de algunos medios de comunicación, publicar noticias alarmantes
que indican: “un asteroide rozará a la Tierra próximamente”. Esas publicaciones están afirmando
en definitiva que habrá colisión entre un cuerpo celeste y nuestro planeta, lo cual afortunadamente
es falso! Y ahora le tocó el turno al famoso asteroide APOPHIS, y muchos medios ya están
divulgando noticias que se apartan de la realidad!
El asteroide APOPHIS tiene un diámetro de aproximadamente 270 metros, y fue descubierto en la
Navidad del 2004. Se hizo famoso en aquel entonces por la predicción de su gran proximidad a la
Tierra que ocurrirá el 13 de abril del 2029; pasará a tan sólo 32.000 kilómetros de nuestro planeta,
mucho más cerca que los satélites artificiales, pero evidentemente muy lejos de la atmósfera
terrestre. Los primeros cálculos realizados con pocos datos observacionales, estimaban una gran
probabilidad de colisión con la Tierra, pero con el transcurso de los años se han tomado gran
cantidad de datos adicionales, con los cuales ya se ha refinado muy bien la órbita del asteroide, y
ahora se concluye todo lo contrario. Como en el año 2029 el acercamiento a la Tierra será bastante
cerrado (pero a una distancia segura), se estimó que el campo gravitacional terrestre podría
modificar la órbita del asteroide en un grado tal, que habría una probabilidad de colisión con nuestro
planeta en el año 2036 o 2068. Por ese motivo, para investigar mucho más la dinámica del asteroide,
se aprovechó los primeros días del mes de marzo del año 2021 para tomar nuevos datos de
APOPHIS, y Científicos de la Universidad de Arizona y de NASA organizaron el grupo internacional
denominado “99942 APOPHIS 2021 OBSERVING CAMPAIGN”, dirigido por el científico Dr. Vishnu
Reddy.
https://iawn.net/obscamp/Apophis/index.shtml
Aunque el gran Radiotelescopio de Arecibo desafortunadamente colapsó en diciembre del 2020, y
no pudo usarse para observaciones de radar,se utilizaron otros instrumentos: El radiotelescopio
situado en California denominado “The Deep Space Network’s Goldstone Complex” y “The Green
Bank Telescope” ubicado en Virginia Occidental-USA.
Con la gran cantidad de datos de fotometría, astrometría y radar capturados en fechas cercanas al
5 de marzo del año 2021, época en la cual APOPHIS estuvo aproximadamente a 17 millones de
kilómetros de la Tierra, se calculó mucho mejor la órbita de APOPHIS, se realizaron además muchas
simulaciones en computador, y se llegó a la conclusión final que NO EXISTE ninguna probabilidad
que este asteroide colisione con la Tierra.
Información compartida por:
Alberto Quijano Vodniza
Observatorio de la Universidad de Nariño - Pasto - Colombia.
https://observatorioastronomico.udenar.edu.co/
Amigo Sociedad Julio Garavito
Es este el cometa más extraño que hay - Cometa 12P Pons-Brooks - Nov 20, 2023...
Es este el cometa más extraño que hay - Cometa 12P Pons-Brooks - Nov 20, 2023...SOCIEDAD JULIO GARAVITO
¿ES ESTE EL COMETA MÁS EXTRAÑO QUE HAY?
El cometa 12P/Pons-Brooks sigue desconcertando a los astrónomos, que están
vigilando las consecuencias de su cuarta gran erupción criovolcánica en 2023. Las
erupciones anteriores de julio y octubre produjeron "cuernos de diablo". More from SOCIEDAD JULIO GARAVITO (20)
STUDY OF THE COMET 12P/PONS-BROOKS.A. Q. Vodniza1, 1Director of University of...
STUDY OF THE COMET 12P/PONS-BROOKS.A. Q. Vodniza1, 1Director of University of...
V Encuentro Internacional de Astronomía - Modelos de Galaxias
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CAPITULO4_EL_PRINCIPITO:De esta manera supe una segunda cosa muy importante: ...
Interface QFT_A-P_P and GW Astronomy_HJMC_March_2024.pdf
Interface QFT_A-P_P and GW Astronomy_HJMC_March_2024.pdf
The deconstructed Standard Model equation _ - symmetry magazine.pdf
The deconstructed Standard Model equation _ - symmetry magazine.pdf
Cómo usan el baño los astronautas en el espacio? - Abril 4, 2024 - space.com
Cómo usan el baño los astronautas en el espacio? - Abril 4, 2024 - space.com
Sor Maria Celeste-Dios y Cielo - La Ciencias Oculta en el Convento
Sor Maria Celeste-Dios y Cielo - La Ciencias Oculta en el Convento
American Eclipse A Nation’s Epic Race to Catch the_240225_095603
American Eclipse A Nation’s Epic Race to Catch the_240225_095603
Citación Asamblea Estatutaria - Invita Junta Directiva de SJG 2024
Citación Asamblea Estatutaria - Invita Junta Directiva de SJG 2024
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Mujeres en astronomía_Luz Angela Cubides_17 de Febrero_ 2024
Anuario del Real Observatorio Astronómico de Madrid 2024
Anuario del Real Observatorio Astronómico de Madrid 2024
Una guía de los mejores eventos astronómicos de 2024: cuándo, dónde y cómo fo...
Una guía de los mejores eventos astronómicos de 2024: cuándo, dónde y cómo fo...
Estimating_Flight_Characteristics_of_Anomalous_Uni.pdf
Estimating_Flight_Characteristics_of_Anomalous_Uni.pdf
Conjunción Luna-Las Pléyades Noviembre 26, 2023.pdf
Conjunción Luna-Las Pléyades Noviembre 26, 2023.pdf
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Es este el cometa más extraño que hay - Cometa 12P Pons-Brooks - Nov 20, 2023...
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20240520 Planning a Circuit Simulator in JavaScript.pptx
Evaporation step counter work. I have done a physical experiment.
(Work in progress.)
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
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本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
4.Indirect Titration
Masking agent, Demasking agents
formation of complex
comparition between masking and demasking agents,
Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
Miscellaneous methods.
Complex titration with EDTA.
Shallowest Oil Discovery of Turkiye.pptx
The Petroleum System of the Çukurova Field - the Shallowest Oil Discovery of Türkiye, Adana
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...
(June 12, 2024) Webinar: Development of PET theranostics targeting the molecu...Scintica Instrumentation
Targeting Hsp90 and its pathogen Orthologs with Tethered Inhibitors as a Diagnostic and Therapeutic Strategy for cancer and infectious diseases with Dr. Timothy Haystead.Katherine Romanak - Geologic CO2 Storage.pdf
Presented at June 6-7 Texas Alliance of Groundwater Districts Business Meeting
Equivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
Sharlene Leurig - Enabling Onsite Water Use with Net Zero Water
Sharlene Leurig - Enabling Onsite Water Use with Net Zero WaterTexas Alliance of Groundwater Districts
Presented at June 6-7 Texas Alliance of Groundwater Districts Business MeetingEWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
Randomised Optimisation Algorithms in DAPHNE
Slides from talk:
Aleš Zamuda: Randomised Optimisation Algorithms in DAPHNE .
Austrian-Slovenian HPC Meeting 2024 – ASHPC24, Seeblickhotel Grundlsee in Austria, 10–13 June 2024
https://ashpc.eu/
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waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
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8.Isolation of pure cultures and preservation of cultures.pdf
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Perseid-Fact-Sheet-v.2.pdf
- 1. Let’s count wishes together! No matter where you are you can enjoy watching meteor streak across the sky The shower's peak performance is across August 11/12/13 overnight hours, but a trickle of meteors can be seen days before and after. You can see as many as 30 to 70 shooting stars per hour depending on your observing location. 1 Comet Swift Tuttle Debris from the trail of this 10 Km (6 miles) -wide comet is the source of the shower. Debris Clouds As the comet rounds the sun, its icy nucleus heats up shedding particles. Meteors The shower occurs when the Earth passes through the debris cloud left by a comet. CLEAR SKIES Make sure you have an unobstructed view of your overhead skies. 1 LIGHTING Turn off all lighting that can brighten your skies such as patio lights. 2 RELAX You don’t need anything except your eyes. Pull up a chair and enjoy the show! 3 JULY 2020 Perseid Fact Sheet Coming on the night of August 11 and 12.
- 2. Science Facts • Comet Swift-Tuttle is the largest object to make repeated passes near Earth. At 10Km/6 miles across it is about the same size as the comet that wiped out the dinosaurs. • The Perseids meteoroids hit Earth’s atmosphere incredibly fast, at speeds of 60 km/s or 133,200 mph. • Most of the Perseids are no bigger than the size of sand grains. • If a meteor hits the ground then it is called a meteorite. • Comet Swift-Tuttle itself was seen from Earth as far back as 69 BC, but last visible from Earth in 1992 and will return in 2126. • When a meteor races through Earth’s atmosphere, its kinetic energy is converted into heat, making it glow white hot. That is what you see as the streak of light. • The Perseids takes its named for the constellation Perseus from which they appear to radiate from in the sky. • Millions of meteoroids travels through Earth’s atmosphere everyday. • The Perseid meteor shower was first observed 2000 years ago and was recorded by Chinese astronomers. Viewing Tips • Wait 15 to 20 minutes for your eyes to adapt to the darkness of night. • Expect to see a mixture of bright to light streaks traveling across the sky which each one lasting only a fraction of a second. • Meteor streaks can cross large sections of the sky so best views are from locations with an open view. • The number of meteors increase their intensity in the hours just before dawn. • While most meteors are tiny, some can be golf ball-sized stones that produce exceptionally bright meteors called fireballs. On the peak dates of the Perseids, watch for them they are blazing lights across the sky. 2 PERSEID FACT SHEET AUGUST 2020 ASTRONOMERS WITHOUT BORDERS AND INTERNATIONAL DARK-SKY ASSOCIATION Astronomers Without Borders and International Dark-Sky Association has paired up to view the Perseid Meteor shower together. Share this fact sheet with your community and have them join in too.