Evaluación de sobrecarga por cifrado en redes multisalto para la internet de las cosas médicas

Evaluation of encryption overload in multihop networks for the internet of medical things

Adrián Neftalí Sánchez (2022, [Tesis de maestría])

El Internet de las cosas médicas (IoMT por sus siglas en ingles) permitirá habilitar servicios y aplicaciones enfocados a diagnósticos más precisos y mejorar la cobertura efectiva de los sistemas de salud. Para esto, es necesario la recolección y envío de información de salud de las personas a través de sensores que monitorean continuamente los signos vitales de las personas. El envío a través de redes para el internet de las cosas (IoT por sus siglas en ingles) de información de salud plantea varios retos importantes para los sistemas de comunicaciones. Uno de los más relevantes es el de preservar la confidencialidad y privacidad de la información desde su recolección hasta su tratamiento y almacenamiento. Esto es especialmente complejo considerando que los sensores utilizados suelen tener pocos recursos en términos de memoria y capacidad de procesamiento. Por lo tanto se han propuesto una serie de algoritmos que cifran esta información de una manera eficiente usando los recursos limitados con los que cuentan estos dispositivos. Estos algoritmos han sido evaluados desde la perspectiva de consumo de potencia y rendimiento. Sin embargo, no se ha hecho una evaluación de cómo éstos afectan el comportamiento de una red IoMT en su conjunto. El presente trabajo de investigación busca evaluar el comportamiento de la implementación de una red IoMT cuya pila de tecnologías en su capa de seguridad utilice algoritmos de cifrado ligero para proteger información desde el momento de conformación de la red. Para realizar esta evaluación se consideraron 5 candidatos de algoritmos de cifrado ligero del concurso que está llevando a cabo el instituto nacional de estándares y tecnología de los Estados Unidos (NIST por sussiglas en ingles), con los cuales utilizando métricas de red, se evaluó el comportamiento de la red al variar entre los distintos algoritmos de cifrado ligero además de compararlos con una implementación del cifrado por defecto AES-128 y una implementación sin ningún tipo de cifrado. Para realizar las diferentes implementaciones con las que se realizó esta evaluación se utilizó el sistema operativo IoT Contiki-ng el cual fue implementado tanto en dos distintos simuladores (Cooja y Renode) como en el dispositivo físico Sensortag-CC2650.

The Internet of medical things (IoMT) will enable services and applications focused on more accurate diagnoses and improve the effective coverage of health systems. For this, it is necessary to collect and send people’s health information through sensors that continuously monitor people’s vital signs. Delivering health information over internet of things networks (IoT) poses several significant challenges for communications systems. One of the most relevant is to preserve the confidentiality and privacy of the information from its collection to its treatment and storage. This is especially complex considering that the sensors used tend to have few resources in terms of memory and processing capacity. Therefore, a series of algorithms have been proposed that encrypt this information efficiently using the limited resources available to these devices. These algorithms have been evaluated from the perspective of power consumption and performance. However, no assessment has been made of how these affect the behavior of an IoMT network as a whole. This research work seeks to evaluate the behavior of an implementation of an IoMT network whose stack of technologies in its security layer uses lightweight encryption algorithms to protect information from the moment the network is formed. To carry out this evaluation, 5 candidates for lightweight encryption algorithms from the contest being carried out by National Institute of Standards and Technology (NIST) were considered, with which, using network metrics, the behavior of the network was evaluated for different lightweight encryption algorithms in addition to comparing them. with an implementation of the default encryption AES-128 and an implementation without any encryption. To carry out the different implementations with which this evaluation was carried out, the IoT Contiki-ng operating system was used, which was implemented both in two different simulators (Cooja and Renode) and in the physical device Sensortag-CC2650.

IoT, IoMT, Contiki-NG, WSN, 6LoWPAN, RPL, IPv6, DTLS, TLS, PSK, TinyDTLS, CoAP, CC2650, CC2538, Grain-128AEAD, Xoodyak, ASCON, GIFT-COFB, TinyJambu, AES-128 IoT, IoMT, Contiki-NG, WSN, 6LoWPAN, RPL, IPv6, DTLS, TLS, PSK, TinyDTLS, CoAP, CC2650, CC2538, Grain-128AEAD, Xoodyak, ASCON, GIFTCOFB, TinyJambu, AES-128 INGENIERÍA Y TECNOLOGÍA CIENCIAS TECNOLÓGICAS TECNOLOGÍA DE LAS TELECOMUNICACIONES TECNOLOGÍA DE LAS TELECOMUNICACIONES

Appraisal of complementarity of subsurface drip fertigation and conservation agriculture for physiological performance and water economy of maize

C.M. Parihar Hari Sankar Nayak Dipaka Ranjan Sena Renu Pandey Mahesh Gathala ML JAT (2023, [Artículo])

The Indo-Gangetic Plains (IGP) in north-west (NW) India are facing a severe decline in ground water due to prevalent rice-based cropping systems. To combat this issue, conservation agriculture (CA) with an alternative crop/s, such as maize, is being promoted. Recently, surface drip fertigation has also been evaluated as a viable option to address low-nutrient use efficiency and water scarcity problems for cereals. While the individual benefits of CA and sub-surface drip (SSD) irrigation on water economy are well-established, information regarding their combined effect in cereal-based systems is lacking. Therefore, we conducted a two-year field experiment in maize, under an ongoing CA-based maize-wheat system, to evaluate the complementarity of CA with SSD irrigation through two technological interventions–– CA+ (residue retained CA + SSD), PCA+ (partial CA without residue + SSD) – at different N rates (0, 120 and 150 kg N ha-1) in comparison to traditional furrow irrigated (FI) CA and conventional tillage (CT) at 120 kg N ha-1. Our results showed that CA+ had the highest grain yield (8.2 t ha-1), followed by PCA+ (8.1 t ha-1). The grain yield under CA+ at 150 kg N ha-1 was 27% and 30% higher than CA and CT, respectively. Even at the same N level (120 kg N ha-1), CA+ outperformed CA and CT by 16% and 18%, respectively. The physiological performance of maize also revealed that CA+ based plots with 120 kg N ha-1 had 12% and 3% higher photosynthesis rate at knee-high and silking, respectively compared to FI-CA and CT. Overall, compared to the FI-CA and CT, SSD-based CA+ and PCA+ saved 54% irrigation water and increased water productivity (WP) by more than twice. Similarly, a greater number of split N application through fertigation in PCA+ and CA+ increased agronomic nitrogen use efficiency (NUE) and recover efficiency by 8–19% and 14–25%, respectively. Net returns from PCA+ and CA+ at 150 kg N ha-1 were significantly higher by US$ 491 and 456, respectively than the FI-CA and CT treatments. Therefore, CA coupled with SSD provided tangible benefits in terms of yield, irrigation water saving, WP, NUE and profitability. Efforts should be directed towards increasing farmers’ awareness of the benefits of such promising technology for the cultivating food grains and commercial crops such as maize. Concurrently, government support and strict policies are required to enhance the system adaptability.

Net Returns Subsurface Drip Irrigation Subsurface Drip Fertigation CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA EFFICIENCY GRAIN NITROGEN PHOTOSYNTHESIS PHYSIOLOGY WATER SUPPLY CONSERVATION AGRICULTURE CONVENTIONAL TILLAGE FERTIGATION GROUNDWATER NITROGEN-USE EFFICIENCY WATER PRODUCTIVITY

Multi-modal deep learning improves grain yield prediction in wheat breeding by fusing genomics and phenomics

Xu Wang Sandesh Kumar Shrestha Philomin Juliana Suchismita Mondal Francisco Pinto Govindan Velu Leonardo Abdiel Crespo Herrera JULIO HUERTA_ESPINO Ravi Singh Jesse Poland (2023, [Artículo])

New Crop Varieties Plant Breeding Programs Yield Prediction CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA LEARNING GRAIN YIELDS WHEAT BREEDING FOOD SECURITY

Use of DH lines in maize breeding programs: CIMMYT experience

Yoseph Beyene (2023, [Objeto de congreso])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MAIZE BREEDING PROGRAMMES HYBRIDS MARKER-ASSISTED SELECTION GRAIN YIELDS

Climate smart bread wheat (Triticum aestivum L.) variety development for optimum moisture areas of Ethiopia

Bekele Abeyo Ayele Badebo Huluka (2023, [Artículo])

GGE Biplot AMMI Model CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA SOFT WHEAT ENVIRONMENT GENOTYPES GRAIN YIELDS

Genetic potential of tropically adapted exotic maize (Zea mays L.) heat-tolerant donor lines in sub-tropical breeding programs

Casper Nyaradzai Kamutando Cosmos Magorokosho Pervez Zaidi (2023, [Artículo])

Gene Action Grain Yield CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA COMBINING ABILITY EXOTIC GERMPLASM GRAIN YIELDS HEAT STRESS

Directrices mínimas dentro del ecosistema del Internet de las Cosas y su implementación en México

Miguel Ángel Acosta García (2023, [Otro, Trabajo de grado, maestría])

Durante los últimos años el crecimiento del Internet de las Cosas ha sido exponencial ya que presta servicios mediante la interconexión de objetos físicos o virtuales. Lo anterior con apoyo de la interoperabilidad de las tecnologías de la comunicación y de la infraestructura transfronteriza en beneficio de la sociedad de la información. En ese sentido el Estado mexicano requiere analizar la viabiliad de establecer la posible regulación del IoT para aumentar la competitividad

económica en el mercado y el bienestar de los ciudadanos, pero con una visión regulatoria integral con la participación

de diversos sectores para el desarrollo del ecosistema del IoT.

Internet de las Cosas Ecosistema del Internet Dispositivos IoT INGENIERÍA Y TECNOLOGÍA INGENIERÍA Y TECNOLOGÍA

Discovery of genomic regions associated with grain yield and agronomic traits in Bi-parental populations of maize (Zea mays. L) under optimum and low nitrogen conditions

Noel Ndlovu Vijay Chaikam Berhanu Tadesse Ertiro Biswanath Das Yoseph Beyene Charles Spillane Prasanna Boddupalli Manje Gowda (2023, [Artículo])

Grain Yield Low Soil Nitrogen CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GRAIN NITROGEN SOIL CHEMICOPHYSICAL PROPERTIES MAIZE QUANTITATIVE TRAIT LOCI

Gene editing to accelerate crop breeding

Kanwarpal Dhugga (2022, [Artículo])

Accelerated Breeding Grain Biofortification Maize Lethal Necrosis Rust Resistance Site-Directed Nuclease Scenarios CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA BREEDING BACKCROSSING DISEASE RESISTANCE GENE EDITING GRAIN BIOFORTIFICATION RUSTS

Identification of genetic loci for grain yield-related traits in the wheat population Zhongmai 578/Jimai 22

Jingyang Tong Ming Li xianchun xia Zhonghu He Yong Zhang (2023, [Artículo])

Grain Yield KASP Marker QTL Mapping SNP Chip CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GRAIN YIELDS QUANTITATIVE TRAIT LOCI MAPPING SINGLE NUCLEOTIDE POLYMORPHISMS WHEAT BREEDING