902 research outputs found
Between the devil and the not-so-deep blue sea: asymmetrical power in the Indo-Sri Lankan fisheries conflict
BUDGET 2008-09 Mid Year Economic and Fiscal Outlook
The purpose of the MYEFO report is to provide updated information to allow the assessment of the Government's fiscal performance against the fiscal strategy set out in the current Budget Papers
How Seafood Wholesale Markets Matter for Urban Food Security:Evidence from Chennai, India
Urban sites gather poverty in particular locations and often require bulk food system approaches for addressing prevalent food security and nutrition needs. The food systems that service them are, however, characterized by perishability and large irregularities in supply. Seafood is currently recognized as contributing in a major way to food security and nutrition, and it is to assessing the role of wholesale markets in meeting the needs of the urban poor that this paper is directed. It zooms in on the city of Chennai, India, where an estimated 40% of the population is considered poor and marine fish plays a crucial role in diets. Building on one-and-a-half years of field research in the pre-COVID-19 period, the paper analyses the performance of one of the city’s largest fish wholesale markets, Vanagaram, in relation to the four commonly recognized pillars of food security. Results demonstrate how urban food systems function as major suppliers of fish (and other food items) to thousands of low- and middle-income households. Most importantly, this case study demonstrates the crucial role that is played by wholesale markets in merging low-price fish supplies from different geographic regions and thereby ensuring food security of poorer inhabitants
Ammoniakemissiemetingen in een modelsysteem van een rundveestal : theoretische beschouwingen = Ammonia emission measurements in a model system of a dairy cattle housing : theoretical considerations
Myocardial perfusion reserve compared with peripheral perfusion reserve: a [13N]ammonia PET study
13N]ammonia PET allows quantification of myocardial perfusion. The similarity between peripheral flow and myocardial perfusion is unclear. We compared perfusion flow in the myocardium with the upper limb during rest and adenosine stress [13N]ammonia PET to establish whether peripheral perfusion reserve (PPR) correlates with MPR.
[13N]ammonia myocardial perfusion PET-scans of 58 patients were evaluated (27 men, 31 women, age 64 +/- A 13 years) and were divided in four subgroups: patients with coronary artery disease (CAD, n = 15), cardiac syndrome X (SX, n = 14), idiopathic dilating cardiomyopathy (DCM, n = 16), and normal controls (NC, n = 13). Peripheral limb perfusion was measured in the muscular tissue of the proximal upper limb and quantified through a 2-tissue-compartment model and the PPR was calculated (stress/rest ratio). MPR was also calculated by a 2-tissue-compartment model. The PPR results were compared with the MPR findings.
Mean myocardial perfusion increased significantly in all groups as evidenced by the MPR (CAD 1.99 +/- A 0.47; SX 1.39 +/- A 0.31; DCM 1.72 +/- A 0.69; NC 2.91 +/- A 0.78). Mean peripheral perfusion also increased but not significantly and accompanied with great variations within and between groups (mean PPR: CAD 1.30 +/- A 0.79; SX 1.36 +/- A 0.71; DCM 1.60 +/- A 1.22; NC 1.27 +/- A 0.63). The mean difference between PPR and MPR for all subpopulations varied widely. No significant correlations in flow reserve were found between peripheral and myocardial microcirculatory beds in any of the groups (Total group: r = -0.07, SEE = 0.70, CAD: r = 0.14, SEE = 0.48, SX: r = 0.17, SEE = 0.30, DCM: r = -0.11, SEE = 0.71, NC: r = -0.19, SEE = 0.80).
No correlations between myocardial and peripheral perfusion (reserve) were found in different patient populations in the same PET session. This suggests a functional difference between peripheral and myocardial flow in the response to intravenously administered adenosine stress
Structural modulation in potassium birnessite single crystals
We report on the growth of single-crystal potassium birnessite
(K0.31MnO2*0.41H2O) and present both the average and local structural
characterization of this frustrated magnetic system. Single crystals were
obtained employing a flux growth method with a KNO3/B2O3 flux at 700 {\deg}C.
Single-crystal X-ray diffraction revealed an average orthorhombic symmetry,
with space group Cmcm. A combination of high angle annular dark field scanning
transmission electron microscopy (HAADF-STEM) with atomic resolution energy
dispersive X-ray spectroscopy (EDS) demonstrated the layered structure of
potassium birnessite with manganese-containing planes well separated by layers
of potassium atoms. MnO6 octahedra and the K/H2O planes were clearly imaged via
integrated differential phase contrast (iDPC) STEM. Furthermore, iDPC-STEM also
revealed the existence of local domains with alternating contrast of the
manganese oxide planes, most likely originating from charge ordering of Mn3+
and Mn4+ along the c-axis. These charge-ordered domains are clearly correlated
with a reduction in the c-lattice parameter compared to the rest of the matrix.
The insight gained from this work allows for a better understanding of the
correlation between structure and magnetic properties.Comment: A high-resolution version with supplementary information can be found
at
https://pubs.rsc.org/en/content/articlelanding/2021/TC/D0TC05396A#!divAbstrac
Towards a sustainable and equitable blue economy
The global rush to develop the \u2018blue economy\u2019 risks harming both the marine environment and human wellbeing. Bold policies and actions are urgently needed. We identify five priorities to chart a course towards an environmentally sustainable and socially equitable blue economy
Explanation of Judicial Decisions by Administrative Judges
Pravo na pravično suđenje sadrži i implicitna jamstva koja su nastala kroz praksu Europskog suda za zaštitu ljudskih prava, Sud u Strasbourgu je kao sastavni element prava na pravično suđenje ustavnovio i pravo na obrazloženje sudske odluke. Nije dovoljno samo formalno pozvati se ili citirati određene propise kao mjerodavne već su nadležna tijela, a osobito sudovi, dužni obrazložiti na temelju kojih činjenica i okolnosti su utvrdili da su u okolnostima konretnog slučaja ispunjene pretpostavke iz tih propisa.The right to a fair trial also consists essentially of implicit guarantees arising from the practice of the European Court for the Protection of Human Rights. This court in Strasbourg has, in addition to establishing the right to a fair trial, also established the right to an explanation of the judicial decision. It is not enough to merely formally refer to or cite certain regulations as being reliable, but rather, authorized bodies, in particular courts, are obliged to explain the foundation on which the facts and circumstances were based. That this, they must justify that the facts and circumstances of the particular case have fulfilled the presumptions from those regulations
Multiplex quantitative PCR for single-reaction genetically modified (GM) plant detection and identification of false-positive GM plants linked to Cauliflower mosaic virus (CaMV) infection.
BACKGROUND:Most genetically modified (GM) plants contain a promoter, P35S, from the plant virus, Cauliflower mosaic virus (CaMV), and many have a terminator, TNOS, derived from the bacterium, Agrobacterium tumefaciens. Assays designed to detect GM plants often target the P35S and/or TNOS DNA sequences. However, because the P35S promoter is derived from CaMV, these detection assays can yield false-positives from non-GM plants infected by this naturally-occurring virus. RESULTS:Here we report the development of an assay designed to distinguish CaMV-infected plants from GM plants in a single multiplexed quantitative PCR (qPCR) reaction. Following initial testing and optimization via PCR and singleplex-to-multiplex qPCR on both plasmid and plant DNA, TaqMan qPCR probes with different fluorescence wavelengths were designed to target actin (a positive-control plant gene), P35S, P3 (a CaMV-specific gene), and TNOS. We tested the specificity of our quadruplex qPCR assay using different DNA extracts from organic watercress and both organic and GM canola, all with and without CaMV infection, and by using commercial and industrial samples. The limit of detection (LOD) of each target was determined to be 1% for actin, 0.001% for P35S, and 0.01% for both P3 and TNOS. CONCLUSIONS:This assay was able to distinguish CaMV-infected plants from GM plants in a single multiplexed qPCR reaction for all samples tested in this study, suggesting that this protocol is broadly applicable and readily transferrable to any interested parties with a qPCR platform
The prognostic value of automated coronary calcium derived by a deep learning approach on non-ECG gated CT images from <sup>82</sup>Rb-PET/CT myocardial perfusion imaging
Background: Assessment of both coronary artery calcium(CAC) scores and myocardial perfusion imaging(MPI) in patients suspected of coronary artery disease(CAD) provides incremental prognostic information. We used an automated method to determine CAC scores on low-dose attenuation correction CT(LDACT) images gathered during MPI in one single assessment. The prognostic value of this automated CAC score is unknown, we therefore investigated the association of this automated CAC scores and major adverse cardiovascular events(MACE) in a large chest-pain cohort. Method: We analyzed 747 symptomatic patients referred for 82RubidiumPET/CT, without a history of coronary revascularization. Ischemia was defined as a summed difference score≥2. We used a validated deep learning(DL) method to determine CAC scores. For survival analysis CAC scores were dichotomized as low(90 days after scanning) or nonfatal myocardial infarction. Cox proportional hazard analysis were performed to identify predictors of MACE. Results: During 4 years follow-up, 115 MACEs were observed. High CAC scores showed higher cumulative event rates, irrespective of ischemia (nonischemic: 25.8% vs 11.9% and ischemic: 57.6% vs 23.4%, P-values <0.001). Multivariable cox regression revealed both high CAC scores (HR 2.19 95%CI 1.43–3.35) and ischemia (HR 2.56 95%CI 1.71–3.35) as independent predictors of MACE. Addition of automated CAC scores showed a net reclassification improvement of 0.13(0.022–0.245). Conclusion: Automatically derived CAC scores determined during a single imaging session are independently associated with MACE. This validated DL method could improve risk stratification and subsequently lead to more personalized treatment in patients suspected of CAD
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