117,069 research outputs found
Perebea cf. xanthochyma H. Karst. from Colombia collected by F. Toro, E. Álvarez, A. Camargo #174
No full textFile Name: TOLI-26078-ZAR-05-216.jpg
CÓDIGO FOTO: TOLI-26078-ZAR-05-216-
Fotografía: SI
Nº TOLI: TOLI-26078
PARCELA: ZAR-05
CÓDIGO: 216
Nº COLECTA: 174
NUEVOS COLECTORES: Alejandro Camargo, Felipe Toro & Esteban Alvarez
COLECTORES: F. Toro, E. Álvarez, A. Camargo
Nº MUESTRAS MONTADAS: 1
Homologación: No homologado
Nueva fecha del evento : 30/11/2018.
Fecha del evento: 27/04/2019.
Proyecto : Recursos Botánicos Disponibles en Línea (BRAVO) para la flora Colombiana
Continente: SA
Pais: Colombia
Estado/Provincia: Amazonas
Municipio: Leticia
Localidad: Resguardo Indígena Ticuna-Huitoto Km 6-11.
Elevación minima en metros: 200
Elevación maxima en metros: 300
Latitud: -4.004
Longitud original: -69.896
datum geodésico: WGS 84
Latitud decimal: -4.004
Longitud decimal: -69.896
Identificado por: Diego Suescún
Fecha de identificación: 15/02/2019.
Nombre cientifico: Perebea cf. xanthochyma H. Karst.
Reino: Plantae
Filo: Magnoliophyta
Clase: Equisetopsida
Orden: Rosales
Familia nueva: Moraceae
Género nuevo: Perebea
especie nueva: xanthochyma
Autoría del nombre científico: H. Karst.
: Moraceae
genero herbario: Perebea
especie herbario: xanthochyma
Especie de herbario para TNRS: Perebea xanthochyma
Especie corregida herbario y desde TNRS: Perebea xanthochyma
Familia corregida desde TNRS: Moraceae
: 5074</p
Defying the law, negotiating change The Futanke’s opposition to the national ban on FGM in Senegal
No full textThis thesis is concerned with the politics of the preservation and ‘abandonment’ of female circumcision in Fouta Toro, Senegal. The focal point of analysis is the overt opposition to the law criminalising female genital cutting in 1999, and development projects raising awareness about excision in human rights and reproductive health education programmes. As an ethnography of the politics around bodily practices in the light of governmental and non-governmental intervention, the thesis looks at how different interest groups justify their position towards excision. This is a timely enquiry, given the Senegalese government’s ‘acceleration programme of the complete abandonment of excision by 2015’ and some Futanke leaders’ non-compliance with, and opposition to this intervention.
After providing details about ‘the ban’ on ‘female genital mutilation’ in Senegal and a critical reflection on the events that are seen to have led to the call for this ban, I carefully disentangle what ‘the opposition to the law’ is and who disagrees with ‘the abandonment’ of the practice in Fouta Toro. The central part of the thesis is guided by an analysis of how excision is embedded in constructions of personhood, sociality and ethnic identity, and how the body is imagined and located in this process. I show how conceptions of ethnic purity and pride are formulated in terms of fear about a ‘loss of culture’ and ‘foreign invasion’ which nourishes discourses of opposition to the law and non-governmental intervention. Others use ‘human rights’ associated with non-governmental organisations and the state as a vehicle to express their views against excision and those who oppose its criminalisation. I examine how idioms like ‘the state’, ‘human rights’ and ‘Futanke way of life’ feature in discourses around the ban of excision in Fouta Toro, and how respectability and honour are maintained through competing representations of the female body as a site of morality. Some claim the female body – a reproducer of cultural identities – with reference to duties through kin obligations, others with reference to ‘human rights’ and ‘the state’.
Based on 15 months’ ethnographic fieldwork in Fouta Toro and nine years working in and researching the impact of development in Senegal, this dissertation contributes to scholarship on Fouta Toro and indicates how governmental and non-governmental intervention stirs up the caste-related power structures of a society led by the Tooroɓɓe since the Islamic revolution in the 18th century. It shows how the female body is located as a site of morality, key to the reproduction of cultural identities
Training of real-time robotic grasp decoding from neuronal population activity in macaque motor cortex (M1)
No full textThe primate cortex can be viewed as a closed-loop dynamical system with very high dimensionality. Extracting a sub-sample of this activity and using it for the decoding of any encoded intention is a challenging task by virtue of the size of the sample relative to the full population. The problem is amplified by the brain’s plasticity, which renders any effort towards decoding ephemeral.
Here we employed a modified Kalman filter to decode the grip of a robotic hand from population spiking activity recorded from two 64 channel Utah arrays implanted in the hand area of primary motor cortex (area M1) of a macaque monkey. After initial training in a reach and grasp task and array implantation, the head-fixated monkey was trained in the closing and opening of a prosthetic hand, visible on a screen, to grasp an object that he was previously trained to grasp with his own hand. The task paradigm specified a start cue and fixed maximal times for closing, holding, and releasing of the object.
The monkey was initially observing the robot hand performing the required movement under the control of a control computer for 20 trials. After this, the decoder was trained on the neural population activity recorded from the electrode arrays during action observation. Then the monkey and the control computer shared control of the hand, such that its commanded position was a weighted average of the two estimates: brain control and computer control. With the progression of time, control was gradually transferred from the computer to the animal, eventually giving full control to the monkey.
Our results confirm that a modified Kalman Filter (see: Agudelo-Toro et al., bioRxiv 2023) is suitable to successfully translate cortical activity to motor commands of a robot hand in real time. We also demonstrate the gradual learning by observation and internalization of the task by the monkey using two metrics - the reduction in the transitory nature of the decoder and the speed of the transfer of control of the prosthesis to the monkey. In early experimental sessions, the monkey was slow to take over control and the decoder required retraining within the experiment session, whereas in later sessions decoder training was required only at the beginning of the session and transfer of control was rapid. Furthermore, decoder training involved not only the training of the decoder on the neural activity, but it also adapted brain activity on the decoder, and an equilibrium had to be maintained between the learning processes. This equilibrium was achieved faster and maintained more robustly as the monkey became more proficient in the task, hence demonstrating the viability of this learning-by-observation paradigm
Einstieg in das „Zeitalter der Extreme“. Erster Weltkrieg und Weimarer Republik.
No full textToro D. Einstieg in das „Zeitalter der Extreme“. Erster Weltkrieg und Weimarer Republik. In: Kümper H, Toro D, eds. Letmathe. Land, Stadt, Menschen durch die Jahrhunderte. Vol Bd. 2. Oppenheim: Nünnerich-Asmus; In Press: 97–122
Der Aufbruch der Moderne. Industrialisierung und Klassengesellschaft im „langen“ 19. Jahrhundert.
No full textToro D. Der Aufbruch der Moderne. Industrialisierung und Klassengesellschaft im „langen“ 19. Jahrhundert. In: Kümper H, Toro D, eds. Letmathe. Land, Stadt, Menschen durch die Jahrhunderte. Vol Bd. 2. Oppenheim: Nünnerich-Asmus; In Press: 6–95
Polarimetry of asteroid 1685 Toro
No full textВ июле — августе 1988 г. в течение 21 ночи проведены поляриметрические наблюдения астероида 1685 Торо. Получена фазовая зависимость степени положительной поляризацни астероида в диапазоне углов фаз 47—106.3°. Максимальная степень поляризации Торо в полосе V составляет αmax = 8.5±0.7 % при αmax = 110 ± 10°. По наклону этой фазовой зависимости h = 0.099±0.007 оценено альбедо астероида pv =0.14±0.01, которое подтверждает принадлежность его к S-типу. По полученным значениям параметров Рmax, h, Рv, а также по результатам лабораторных исследований зависимости Рmax от альбедо для лунного грунта и земных образцов [8] сделаны оценки размеров частиц реголита Торо и получено косвенное подтверждение высказывавшегося-ранее предположения о том, что реголиты малых безатмосферных тел более крупнозернистые, чем реголит Луны.During 21 nights in July — August, 1988 the polarimetric observations of the asteroid 1685 Toro were carried out and phase dependence of the asteroid positive polarization was obtained in phase angle range 47—106.3°. The value ■of maximum polarization of Toro in V band is Pmax = 8.5±0.7 % at αmax= 110±10°. Albedo of the asteroid pv=0.14±0.01 is estimated on the basis of the polarimetric slope h measured. Using the values of Pmax. h, Pv obtained as well as the results of laboratory investigations of Pmax — albedo dependence of the lunar regolith and terrestrial samples, the estimation of Toro regolith particle size is made. The indirect confirmation •of earlier supposition, that regoliths of small atmosphereless bodies are more coarsegrained ones than the regolith of the Moon, is obtained
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Polarimetry of asteroid 1685 Toro
No full textВ июле — августе 1988 г. в течение 21 ночи проведены поляриметрические наблюдения астероида 1685 Торо. Получена фазовая зависимость степени положительной поляризацни астероида в диапазоне углов фаз 47—106.3°. Максимальная степень поляризации Торо в полосе V составляет αmax = 8.5±0.7 % при αmax = 110 ± 10°. По наклону этой фазовой зависимости h = 0.099±0.007 оценено альбедо астероида pv =0.14±0.01, которое подтверждает принадлежность его к S-типу. По полученным значениям параметров Рmax, h, Рv, а также по результатам лабораторных исследований зависимости Рmax от альбедо для лунного грунта и земных образцов [8] сделаны оценки размеров частиц реголита Торо и получено косвенное подтверждение высказывавшегося-ранее предположения о том, что реголиты малых безатмосферных тел более крупнозернистые, чем реголит Луны.During 21 nights in July — August, 1988 the polarimetric observations of the asteroid 1685 Toro were carried out and phase dependence of the asteroid positive polarization was obtained in phase angle range 47—106.3°. The value ■of maximum polarization of Toro in V band is Pmax = 8.5±0.7 % at αmax= 110±10°. Albedo of the asteroid pv=0.14±0.01 is estimated on the basis of the polarimetric slope h measured. Using the values of Pmax. h, Pv obtained as well as the results of laboratory investigations of Pmax — albedo dependence of the lunar regolith and terrestrial samples, the estimation of Toro regolith particle size is made. The indirect confirmation •of earlier supposition, that regoliths of small atmosphereless bodies are more coarsegrained ones than the regolith of the Moon, is obtained
Recuperación de Litio desde baterías
No full textLas baterías ion litio son, actualmente, la principal fuente de energía de los aparatos electrónicos, tales como máquinas fotográficas, teléfonos celulares, computadoras personales, herramientas portátiles, filmadoras, vehículos híbridos y eléctricos, entre otros. Esta gran cantidad de aplicaciones se debe principalmente a sus características excepcionales, tales como: • Alta densidad de energía. • Alto voltaje 3,7 V. • No poseen efecto memoria. • Baja tasa de autodescarga. • Larga vida útil. • No necesitan mantenimiento. • Amplio rango de temperatura de operación.Fil: Pinna, Eliana Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Suarez, Daniela Silvana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Toro, Mario H.. Universidad Arturo Prat (unap);Fil: Rodriguez, Mario Humberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentin
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