Marcelo Magalhães Fares Saba

Dados pessoais

Lattes
Grupos de Pesquisa
Genealogia Acadêmica

Nacionalidade: Brasileira
Grande área de atuação: Ciências Exatas e da Terra
Área de atuação: Geociências

Publicações

Total: 351

Área temática ASJC

Percentual das publicações classificadas

HS Ciências da Saúde
LS Ciências da Vida
MU Multidisciplinar
PS Ciências Físicas
SH Ciências Sociais e Humanidades

Categoria ASJC

Categorias ASJC mais frequentes

Nome	Vínculo	Grande área de atuação	Área de atuação
Nome	Vínculo	Grande área de atuação	Área de atuação
Marcio MAGINI		Ciências Exatas e da Terra	Matemática
Paulo Victor Santos SOUZA		Ciências Exatas e da Terra	Física

Figura 1

Número de publicações por ano e por tipo

Todas as publicações do perfil

Figura 2

Categorias ASJC mais frequentes por ano

A cor dos pontos identifica a categoria predominante

Figura 3

Mapa de calor das categorias ASJC por ano

Frequências absolutas; cores mais escuras indicam mais publicações. Todas as categorias ASJC e anos disponíveis, sem aplicar os filtros da página.

Escala: 0 → 16

Mapa de calor das categorias ASJC por ano
Categoria ASJC	1986	1992	1993	1994	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024	2025	2026	2027
1902 · Atmospheric Science	0	0	1	0	1	1	0	3	1	2	1	5	6	5	9	7	8	7	5	16	12	10	12	4	6	5	4	1	0	3	9	2	7	2	11	0
3101 · Physics and Astronomy (miscellaneous)	0	0	0	0	0	1	1	1	1	3	4	2	2	2	4	2	1	1	2	1	2	2	0	2	1	0	0	1	0	0	0	0	1	2	1	0
2208 · Electrical and Electronic Engineering	0	0	0	0	0	0	0	0	0	1	0	0	0	1	0	0	0	1	3	0	3	1	0	1	1	2	1	0	0	0	3	0	2	1	0	0
1908 · Geophysics	0	0	0	0	0	3	0	2	1	1	0	1	0	1	0	0	0	0	1	0	0	0	0	0	0	1	0	0	0	0	1	1	4	1	2	0
3103 · Astronomy and Astrophysics	0	0	0	0	0	0	0	0	0	0	0	0	1	0	2	0	1	0	0	0	1	0	2	0	0	0	0	2	1	0	3	1	1	0	0	0
3108 · Radiation	0	0	0	0	0	0	0	0	0	1	1	0	0	1	1	0	0	1	1	0	1	0	0	0	0	0	4	0	0	0	0	0	1	1	2	0
2102 · Energy Engineering and Power Technology	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	1	1	0	2	2	1
3105 · Instrumentation	0	0	0	0	0	0	1	0	0	0	0	3	0	1	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	1	0
1912 · Space and Planetary Science	0	1	0	0	0	0	0	1	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	0	0	0
3304 · Education	0	0	0	1	0	0	0	0	1	0	1	2	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
2201 · Engineering (miscellaneous)	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	1	0	0	0	1	1	0	0	0	0	0	0	0	1	0	0	0	0	0
3107 · Atomic and Molecular Physics; and Optics	1	0	0	0	0	0	0	0	0	1	0	0	1	1	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1707 · Computer Vision and Pattern Recognition	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	2	0
2202 · Aerospace Engineering	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	1	0	0	0	0	0	1	0	0	0	0	0	0	1	0	0	0
1901 · Earth and Planetary Sciences (miscellaneous)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
3102 · Acoustics and Ultrasonics	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
3205 · Experimental and Cognitive Psychology	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0
1907 · Geology	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
2105 · Renewable Energy; Sustainability and the Environment	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	0	0	0	0	0	0	0
2205 · Civil and Structural Engineering	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	1	0	0	0	0	0
3106 · Nuclear and High Energy Physics	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1213 · Visual Arts and Performing Arts	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1401 · Business; Management and Accounting (miscellaneous)	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1403 · Business and International Management	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1406 · Marketing	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1407 · Organizational Behavior and Human Resource Management	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1408 · Strategy and Management	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
1803 · Management Science and Operations Research	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0
2207 · Control and Systems Engineering	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
2209 · Industrial and Manufacturing Engineering	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
2210 · Mechanical Engineering	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
2213 · Safety; Risk; Reliability and Quality	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
2604 · Applied Mathematics	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Ano	Tipo	Registro	Área temática e categoria ASJC
	Tipo de Publicação	Registro	Área temática e categoria ASJC
2017	Trabalho em evento	Positive cloud-to-ground flashes and the initiation of upward lightning Marcelo Magalhães Fares SABA; Carina SCHUMANN; Warner Tom A; Marco Antonio Da Silva FERRO; ORVILLE 4th International Symposium on Winter Lightning	PS Atmospheric Science
2017	Trabalho em evento	Upward connecting leader behavior during lightning attachment process Marcelo Magalhães Fares SABA; José Claudio De Oliveira E SILVA; Schumann CARINA; Amanda Romão De PAIVA; Marco Antonio Da Silva FERRO et al 2017 Joint IAPSO-IAMAS-IAGA Assembly	PS Aerospace Engineering
2017	Trabalho em evento	First results of high-speed video observation and electric field lightning flashes in Johannesburg; South Africa Carina SCHUMANN; Hugh HUNT; Ken NIXON; Marcelo Magalhães Fares SABA; Tom A WARNER 2017 Joint IAPSO-IAMAS-IAGA Assembly	PS Atmospheric Science
2017	Trabalho em evento	Upward flashes triggering mechanisms Schumann CARINA; Marcelo Magalhães Fares SABA; Warner Tom A; Ferro Marco Antonio S International Symposium on Lightning Protection (XIV SIPDA)	PS Atmospheric Science
2017	Trabalho em evento	Current measurements of upward leaders from buildings Marcelo Magalhães Fares SABA; Amanda Romão De PAIVA; Kleber Pinheiro NACCARATO; De Siqueira F V C; Schumann CARINA et al International Symposium on Lightning Protection (XIV SIPDA)	PS Electrical and Electronic Engineering
2017	Trabalho em evento	Preliminary comparison of direct electric current measurements in lightning rods and peak current estimates from lightning location systems Kleber Pinheiro NACCARATO; Amanda Romão De PAIVA; Marcelo Magalhães Fares SABA; Schumann CARINA; José Claudio De Oliveira E SILVA et al International Symposium on Lightning Protection (XIV SIPDA)	PS Electrical and Electronic Engineering
2017	Trabalho em evento	Electrical and hydrometeor structure on thunderstorms that produce upward lightning Jéssica SOUZA; Rachel I ALBRECHT; Timothy J LANG; Marcelo Magalhães Fares SABA; Warner Tom A et al 2017 AGU Fall Meeting	PS Atmospheric Science
2017	Trabalho em evento	Estudo das Tempestades que Geram Raios Ascendentes Jéssica SOUZA; Rachel I ALBRECHT; Marcelo Magalhães Fares SABA XVIII Simpósio Brasileiro de Sensoriamento Remoto	PS Atmospheric Science
2017	Artigo em periódico	Lightning attachment process to common buildings Marcelo Magalhães Fares SABA; Amanda Romão De PAIVA; Carina SCHUMANN; Marco Antonio Da Silva FERRO; Naccarato K P et al GEOPHYSICAL RESEARCH LETTERS DOI 10.1002/2017GL072796 ISSN 0094-8276	PS Geophysics
2016	Trabalho em evento	Characteristics of positive cloud-to-ground flashes triggering upward flashes in Rapid City-SD Schumann CARINA; Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Tom A WARNER; Raphael Bueno Guedes Da SILVA et al International Lightning Detection Conference/International Lightning Meteorology Conference	PS Atmospheric Science
2016	Trabalho em evento	Lightning attachment process to common buildings Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Amanda Romão De PAIVA; Schumann CARINA; José Claudio De Oliveira E SILVA et al International Lightning Detection Conference/International Lightning Meteorology Conference	PS Atmospheric Science
2016	Trabalho em evento	Features of lightning flashes obtained from high-speed video recordings Marcelo Magalhães Fares SABA GROUND 2016 & 7th Lightning Physics and Effects	PS Atmospheric Science
2016	Trabalho em evento	Charge transfer in natural negative and positive downward flashes Schumann CARINA; Hannes KOHLMANN; Marcelo Magalhães Fares SABA; Schulz WOLFGANG; Ferro Marco Antonio S et al International Conference on Lightning Protection	PS Physics and Astronomy (miscellaneous)
2016	Trabalho em evento	The study of lightning strikes to common buildings in Brazil Marcelo Magalhães Fares SABA; Ferro Marco Antonio S; Kleber Pinheiro NACCARATO; Amanda Romão De PAIVA; Schumann CARINA et al 33rd International Conference on Lightning Protection	PS Electrical and Electronic Engineering
2016	Trabalho em evento	ESTUDO DAS TEMPESTADES QUE GERAM RAIOS ASCENDENTES Jéssica SOUZA; Marcelo Magalhães Fares SABA; Rachel I ALBRECHT XIX Congresso Brasileiro de Meteorologia	PS Atmospheric Science
2016	Artigo em periódico	Upward lightning flashes characteristics from high-speed videos Marcelo Magalhães Fares SABA; Schumann CARINA; Warner Tom A; Ferro Marco Antonio S; De Paiva Amanda ROMÃO et al JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES DOI 10.1002/2016JD025137 ISSN 2169-897X	PS Atmospheric Science
2016	Artigo em periódico	Observations of bidirectional lightning leader initiation and development near positive leader channels Warner Tom A; Marcelo Magalhães Fares SABA; Schumann CARINA; Helsdon John H; Orville Richard E JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES DOI 10.1002/2016jd025365 ISSN 2169-897X	PS Atmospheric Science
2015	Trabalho em evento	Lightning Physics from High-speed Video Observations Marcelo Magalhães Fares SABA; Schumann CARINA; Amanda Romão De PAIVA AAPT Winter Meeting	PS Physics and Astronomy (miscellaneous)
2015	Trabalho em evento	Physics Demonstration Seminar for Graduate Students Marcelo Magalhães Fares SABA AAPT Winter Meeting	PS Physics and Astronomy (miscellaneous)
2015	Trabalho em evento	High-speed video and electric field observation of upward flashes in Brazil Marcelo Magalhães Fares SABA; Carina SCHUMANN; Marco Antonio Da Silva FERRO; Amanda Romão De PAIVA; Robson JAQUES et al EGU General Assembly 2015	PS Atmospheric Science
2015	Trabalho em evento	Upward Lightning Flashes in Brazil and USA Schumann CARINA; Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Warner Tom A; Amanda Romão De PAIVA et al Asia-Pacific Internation Conference on Lightning	PS Atmospheric Science
2015	Trabalho em evento	Analysis of terrain and atmospheric conditions for upward flashes in Sao Paulo Brazil Schumann CARINA; Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Schulz WOLFGANG; Gehard DIENDORFER et al Simpósio Internacional de Proteção contra Descargas Atmosféricas (SIPDA)	PS Atmospheric Science
2015	Trabalho em evento	Detection of M components and return strokes in upward and downward lightning flashes Amanda Romão De PAIVA; Marcelo Magalhães Fares SABA; Kleber Pinheiro NACCARATO; Schumann CARINA; Robson JAQUES et al Simpósio Internacional de Proteção contra Descargas Atmosféricas (SIPDA)	PS Atmospheric Science
2015	Trabalho em evento	Upward connecting leaders from buildings Marcelo Magalhães Fares SABA; Amanda Romão De PAIVA; José Claudio De Oliveira E SILVA; Lucas David NOVELINE; Schumann CARINA et al Simpósio Internacional de Proteção contra Descargas Atmosféricas (SIPDA)	PS Civil and Structural Engineering
2015	Artigo em periódico	Detecção de descargas ascendentes partindo de torres em São Paulo Amanda Romão De PAIVA; Marcelo Magalhães Fares SABA; Kleber P NACCARATO; Carina SCHUMANN; Robson JAQUES ELETRICIDADE MODERNA ISSN 0100-2104	PS Electrical and Electronic Engineering

2017 Trabalho em evento

PS Atmospheric Science

Positive cloud-to-ground flashes and the initiation of upward lightning

4th International Symposium on Winter Lightning

Marcelo Magalhães Fares SABA; Carina SCHUMANN; Warner Tom A; Marco Antonio Da Silva FERRO; ORVILLE

2017 Trabalho em evento

PS Aerospace Engineering

Upward connecting leader behavior during lightning attachment process

2017 Joint IAPSO-IAMAS-IAGA Assembly

Marcelo Magalhães Fares SABA; José Claudio De Oliveira E SILVA; Schumann CARINA; Amanda Romão De PAIVA; Marco Antonio Da Silva FERRO et al

2017 Trabalho em evento

PS Atmospheric Science

First results of high-speed video observation and electric field lightning flashes in Johannesburg; South Africa

2017 Joint IAPSO-IAMAS-IAGA Assembly

Carina SCHUMANN; Hugh HUNT; Ken NIXON; Marcelo Magalhães Fares SABA; Tom A WARNER

2017 Trabalho em evento

PS Atmospheric Science

Upward flashes triggering mechanisms

International Symposium on Lightning Protection (XIV SIPDA)

Schumann CARINA; Marcelo Magalhães Fares SABA; Warner Tom A; Ferro Marco Antonio S

2017 Trabalho em evento

PS Electrical and Electronic Engineering

Current measurements of upward leaders from buildings

International Symposium on Lightning Protection (XIV SIPDA)

Marcelo Magalhães Fares SABA; Amanda Romão De PAIVA; Kleber Pinheiro NACCARATO; De Siqueira F V C; Schumann CARINA et al

2017 Trabalho em evento

PS Electrical and Electronic Engineering

Preliminary comparison of direct electric current measurements in lightning rods and peak current estimates from lightning location systems

International Symposium on Lightning Protection (XIV SIPDA)

Kleber Pinheiro NACCARATO; Amanda Romão De PAIVA; Marcelo Magalhães Fares SABA; Schumann CARINA; José Claudio De Oliveira E SILVA et al

2017 Trabalho em evento

PS Atmospheric Science

Electrical and hydrometeor structure on thunderstorms that produce upward lightning

2017 AGU Fall Meeting

Jéssica SOUZA; Rachel I ALBRECHT; Timothy J LANG; Marcelo Magalhães Fares SABA; Warner Tom A et al

2017 Trabalho em evento

PS Atmospheric Science

Estudo das Tempestades que Geram Raios Ascendentes

XVIII Simpósio Brasileiro de Sensoriamento Remoto

Jéssica SOUZA; Rachel I ALBRECHT; Marcelo Magalhães Fares SABA

2017 Artigo em periódico

PS Geophysics

Lightning attachment process to common buildings

GEOPHYSICAL RESEARCH LETTERS

Marcelo Magalhães Fares SABA; Amanda Romão De PAIVA; Carina SCHUMANN; Marco Antonio Da Silva FERRO; Naccarato K P et al

DOI ISSN 0094-8276

2016 Trabalho em evento

PS Atmospheric Science

Characteristics of positive cloud-to-ground flashes triggering upward flashes in Rapid City-SD

International Lightning Detection Conference/International Lightning Meteorology Conference

Schumann CARINA; Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Tom A WARNER; Raphael Bueno Guedes Da SILVA et al

2016 Trabalho em evento

PS Atmospheric Science

Lightning attachment process to common buildings

International Lightning Detection Conference/International Lightning Meteorology Conference

Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Amanda Romão De PAIVA; Schumann CARINA; José Claudio De Oliveira E SILVA et al

2016 Trabalho em evento

PS Atmospheric Science

Features of lightning flashes obtained from high-speed video recordings

GROUND 2016 & 7th Lightning Physics and Effects

Marcelo Magalhães Fares SABA

2016 Trabalho em evento

PS Physics and Astronomy (miscellaneous)

Charge transfer in natural negative and positive downward flashes

International Conference on Lightning Protection

Schumann CARINA; Hannes KOHLMANN; Marcelo Magalhães Fares SABA; Schulz WOLFGANG; Ferro Marco Antonio S et al

2016 Trabalho em evento

PS Electrical and Electronic Engineering

The study of lightning strikes to common buildings in Brazil

33rd International Conference on Lightning Protection

Marcelo Magalhães Fares SABA; Ferro Marco Antonio S; Kleber Pinheiro NACCARATO; Amanda Romão De PAIVA; Schumann CARINA et al

2016 Trabalho em evento

PS Atmospheric Science

ESTUDO DAS TEMPESTADES QUE GERAM RAIOS ASCENDENTES

XIX Congresso Brasileiro de Meteorologia

Jéssica SOUZA; Marcelo Magalhães Fares SABA; Rachel I ALBRECHT

2016 Artigo em periódico

PS Atmospheric Science

Upward lightning flashes characteristics from high-speed videos

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES

Marcelo Magalhães Fares SABA; Schumann CARINA; Warner Tom A; Ferro Marco Antonio S; De Paiva Amanda ROMÃO et al

DOI ISSN 2169-897X

2016 Artigo em periódico

PS Atmospheric Science

Observations of bidirectional lightning leader initiation and development near positive leader channels

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES

Warner Tom A; Marcelo Magalhães Fares SABA; Schumann CARINA; Helsdon John H; Orville Richard E

DOI ISSN 2169-897X

2015 Trabalho em evento

PS Physics and Astronomy (miscellaneous)

Lightning Physics from High-speed Video Observations

AAPT Winter Meeting

Marcelo Magalhães Fares SABA; Schumann CARINA; Amanda Romão De PAIVA

2015 Trabalho em evento

PS Physics and Astronomy (miscellaneous)

Physics Demonstration Seminar for Graduate Students

AAPT Winter Meeting

Marcelo Magalhães Fares SABA

2015 Trabalho em evento

PS Atmospheric Science

High-speed video and electric field observation of upward flashes in Brazil

EGU General Assembly 2015

Marcelo Magalhães Fares SABA; Carina SCHUMANN; Marco Antonio Da Silva FERRO; Amanda Romão De PAIVA; Robson JAQUES et al

2015 Trabalho em evento

PS Atmospheric Science

Upward Lightning Flashes in Brazil and USA

Asia-Pacific Internation Conference on Lightning

Schumann CARINA; Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Warner Tom A; Amanda Romão De PAIVA et al

2015 Trabalho em evento

PS Atmospheric Science

Analysis of terrain and atmospheric conditions for upward flashes in Sao Paulo Brazil

Simpósio Internacional de Proteção contra Descargas Atmosféricas (SIPDA)

Schumann CARINA; Marcelo Magalhães Fares SABA; Marco Antonio Da Silva FERRO; Schulz WOLFGANG; Gehard DIENDORFER et al

2015 Trabalho em evento

PS Atmospheric Science

Detection of M components and return strokes in upward and downward lightning flashes

Simpósio Internacional de Proteção contra Descargas Atmosféricas (SIPDA)

Amanda Romão De PAIVA; Marcelo Magalhães Fares SABA; Kleber Pinheiro NACCARATO; Schumann CARINA; Robson JAQUES et al

2015 Trabalho em evento

PS Civil and Structural Engineering

Upward connecting leaders from buildings

Simpósio Internacional de Proteção contra Descargas Atmosféricas (SIPDA)

Marcelo Magalhães Fares SABA; Amanda Romão De PAIVA; José Claudio De Oliveira E SILVA; Lucas David NOVELINE; Schumann CARINA et al

2015 Artigo em periódico

PS Electrical and Electronic Engineering

Detecção de descargas ascendentes partindo de torres em São Paulo

ELETRICIDADE MODERNA

Amanda Romão De PAIVA; Marcelo Magalhães Fares SABA; Kleber P NACCARATO; Carina SCHUMANN; Robson JAQUES

ISSN 0100-2104