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Gissell Estrada

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  • Deprecated function: Return type of DatabaseStatementBase::execute($args = [], $options = []) should either be compatible with PDOStatement::execute(?array $params = null): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2244 of /home/maxwell/public_html/migsaa/includes/database/database.inc).
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  • Deprecated function: Return type of DatabaseStatementEmpty::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/maxwell/public_html/migsaa/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/maxwell/public_html/migsaa/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/maxwell/public_html/migsaa/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/maxwell/public_html/migsaa/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseCondition::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 1652 of /home/maxwell/public_html/migsaa/includes/database/query.inc).
  • Deprecated function: Optional parameter $data declared before required parameter $info is implicitly treated as a required parameter in include_once() (line 1389 of /home/maxwell/public_html/migsaa/includes/bootstrap.inc).
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  • Deprecated function: Return type of DateObject::__wakeup() should either be compatible with DateTime::__wakeup(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 143 of /home/maxwell/public_html/migsaa/sites/all/modules/contrib/date/date_api/date_api.module).
  • Deprecated function: Return type of DateObject::format($format, $force = false) should either be compatible with DateTime::format(string $format): string, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 143 of /home/maxwell/public_html/migsaa/sites/all/modules/contrib/date/date_api/date_api.module).
  • Deprecated function: Return type of DateObject::setTimezone($tz, $force = false) should either be compatible with DateTime::setTimezone(DateTimeZone $timezone): DateTime, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 143 of /home/maxwell/public_html/migsaa/sites/all/modules/contrib/date/date_api/date_api.module).
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  • Deprecated function: Return type of RulesRecursiveElementIterator::hasChildren() should either be compatible with RecursiveIterator::hasChildren(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 2088 of /home/maxwell/public_html/migsaa/sites/all/modules/contrib/rules/includes/rules.core.inc).
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People Details

Position: 
ALUMNA, HERIOT- WATT UNIVERSITY
Location: 
MIGSAA

Research interests: Partial differential equations and mathematical modelling

Gissell graduated from the University of Strathclyde where she found her passion for PDEs and research. In her final year she worked on a project where she could combine aspects of physics with mathematics to model the air flowing around particular shapes. While her interests are more applied than theoretical, she is very interested in exploring other fields MIGSAA will offer her. In her free time she enjoys dancing and long walks.  She likes to play the guitar and volleyball.

In her extended project she worked on the analysis of blow up solutions to a semilinear parabolic equation, combining numerics and analysis. For the rest of her PhD she will dig deeper into this area with the aim to carry out numerical analysis and modelling of nonlinear diffusion equations in biology such as Keller-Segel equation for chemotaxis reactions. Her future work aims to derive Keller-Segel-like equations involving nonlocal, fractional Laplacians from microscopic models, which might have applications to other related biological diffusion processes, like animal movement or the spreading of diseases.In her extended project she worked on the analysis of blow up solutions to a semilinear parabolic equation, combining numerics and analysis. For the rest of her PhD she will dig deeper into this area with the aim to carry out numerical analysis and modelling of nonlinear diffusion equations in biology such as Keller-Segel equation for chemotaxis reactions. Her future work aims to derive Keller-Segel-like equations involving nonlocal, fractional Laplacians from microscopic models, which might have applications to other related biological diffusion processes, like animal movement or the spreading of diseases.

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Gissell Estrada | The Maxwell Institute for Mathematical Sciences

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  • Deprecated function: mb_substr(): Passing null to parameter #1 ($string) of type string is deprecated in drupal_substr() (line 593 of /home/maxwell/public_html/migsaa/includes/unicode.inc).
  • Deprecated function: strip_tags(): Passing null to parameter #1 ($string) of type string is deprecated in syslog_watchdog() (line 114 of /home/maxwell/public_html/migsaa/modules/syslog/syslog.module).
  • Warning: Cannot modify header information - headers already sent by (output started at /home/maxwell/public_html/migsaa/includes/common.inc:2807) in drupal_send_headers() (line 1501 of /home/maxwell/public_html/migsaa/includes/bootstrap.inc).
  • TypeError: xmlsitemap_node_create_link(): Argument #1 ($node) must be of type stdClass, bool given, called in /home/maxwell/public_html/migsaa/sites/all/modules/contrib/xmlsitemap/xmlsitemap_node/xmlsitemap_node.module on line 28 in xmlsitemap_node_create_link() (line 194 of /home/maxwell/public_html/migsaa/sites/all/modules/contrib/xmlsitemap/xmlsitemap_node/xmlsitemap_node.module).
  • Deprecated function: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in url_is_external() (line 2393 of /home/maxwell/public_html/migsaa/includes/common.inc).
  • Deprecated function: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in url_is_external() (line 2395 of /home/maxwell/public_html/migsaa/includes/common.inc).
  • Deprecated function: ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in url() (line 2311 of /home/maxwell/public_html/migsaa/includes/common.inc).
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