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Regulating the Regulators [PDF]

open access: yesScience, 2003
Activation of the immune system in response to pathogens carries with it the possibility of a harmful autoimmune response. In their Perspective, Powrie and Maloy discuss a newly recognized group of regulatory T cells (T) that fine tune protective antimicrobial immune responses in order to minimize harmful immune pathology ( Hori et ...
Powrie, F, Maloy, K
  +8 more sources

COVID-19 seroprevalence in Pakistan: a cross-sectional study

open access: yesBMJ Open, 2022
Objectives This study adapted WHO’s ‘Unity Study’ protocol to estimate the population prevalence of antibodies to SARS CoV-2 and risk factors for developing SARS-CoV-2 infection.Design This population-based, age-stratified cross-sectional study was ...
Maida Umar   +5 more
doaj   +1 more source

Heat Stress Targeting Individual Organs Reveals the Central Role of Roots and Crowns in Rice Stress Responses

open access: yesFrontiers in Plant Science, 2022
Inter-organ communication and the heat stress (HS; 45°C, 6 h) responses of organs exposed and not directly exposed to HS were evaluated in rice (Oryza sativa) by comparing the impact of HS applied either to whole plants, or only to shoots or roots. Whole-
Sylva Prerostova   +9 more
doaj   +1 more source

Evaluating implementation of International Health Regulations core capacities: using the Electronic States Parties Self-Assessment Annual Reporting Tool (e-SPAR) to monitor progress with Joint External Evaluation indicators

open access: yesGlobalization and Health, 2021
Background The International Health Regulations (IHR) are a legally binding instrument designed to improve Global Health Security by limiting the cross boarder spread of health risks.
Ahmed Razavi   +3 more
doaj   +1 more source

Risk Analysis and Countermeasures of Excessive Pesticide Residues in China's Export of Grapes to ASEAN

open access: yesShipin gongye ke-ji, 2022
Grape is one of the largest agricultural products exported from China to ASEAN. Grapes are prone to diseases and insect pests in the production process, and a variety of pesticides are used on them.
Xiaoyan SONG   +3 more
doaj   +1 more source

Radiomics models based on enhanced computed tomography to distinguish clear cell from non-clear cell renal cell carcinomas

open access: yesScientific Reports, 2021
This study was to assess the effect of the predictive model for distinguishing clear cell RCC (ccRCC) from non-clear cell RCC (non-ccRCC) by establishing predictive radiomic models based on enhanced-computed tomography (CT) images of renal cell carcinoma
Ping Wang   +7 more
doaj   +1 more source

DWI Combined With Hepatobiliary-Phase Enhanced Imaging Can Better Differentiate Cholangiocarcinoma From Atypical Liver Abscesses

open access: yesFrontiers in Oncology, 2022
ObjectiveTo investigate the value of diffusion-weighted imaging (DWI) combined with the hepatobiliary phase (HBP) Gd-BOPTA enhancement in differentiating intrahepatic mass-forming cholangiocarcinoma (IMCC) from atypical liver abscess.Materials and ...
Li-Hong Xing   +8 more
doaj   +1 more source

Trend Analysis of exponential increase of Covid-19 cases in Pakistan: An interpretation

open access: yesGlobal Biosecurity, 2020
'Background': The 2019 novel coronavirus (SARS-CoV-2) originated in the central Chinese city, Wuhan, at the end of December 2019. Pakistan reported its first 2 confirmed cases on 26February 2020, linked to a travel history of Iran.
Nadia Noreen   +9 more
doaj   +1 more source

Dissecting Hierarchies between Light, Sugar and Auxin Action Underpinning Root and Root Hair Growth

open access: yesPlants, 2021
Plant roots are very plastic and can adjust their tissue organization and cell appearance during abiotic stress responses. Previous studies showed that direct root illumination and sugar supplementation mask root growth phenotypes and traits.
Judith García-González   +2 more
doaj   +1 more source

Light Regulates the Cytokinin-Dependent Cold Stress Responses in Arabidopsis

open access: yesFrontiers in Plant Science, 2021
To elucidate the effect of light intensity on the cold response (5°C; 7 days) in Arabidopsis thaliana, we compared the following parameters under standard light (150 μmol m–2 s–1), low light (20 μmol m–2 s–1), and dark conditions: membrane damage ...
Sylva Prerostova   +11 more
doaj   +1 more source

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