74 research outputs found
Problematic Attachment to Social Media: Lived Experience and Emotions
People's relationship with social media and their contacts on them can
be problematic. People may engage in social media in a compulsive and hasty
style to increase their popularity, reputation and enhance their self-esteem. However, this problematic attachment to social media may result in side effects on
people’s well-being. Therefore, people may need assistance to reform their relationship with social media in a way that it maintains different aspects of their
online interaction, such as empathy with others and maintaining their popularity
and relatedness. In order to provide the tools and methods to support people in
reforming their relationship with social media, towards a healthier usage style,
we need to understand the experience of people who suffer a problematic relationship with them. Most studies on the topic are based on methods which would
lack ecological validity, e.g. using surveys and interviews, and do not capture or
imitate such a digital experience as lived. In an attempt to better explore how
people experience problematic attachment and relationship with social media,
and their associated emotions, we conducted a multistage qualitative method
study including a diary study to gather lived experience. We aim to inform both
users and designers towards a managed and tool-supported reform of their problematic relationship with social media and, ultimately, having a healthier online
interaction
Relationships between temperature and latent periods of rust and leaf-spot diseases of groundnut
The effect of temperature on the latent periods of rust, late leaf spot and early leaf spot diseases of
groundnut caused by Puccinia arachidis, Phaeoisariopsis personata and Cercospora arachidicola.
respectively, was studied. The latent periods (LP) of rust, late leaf spot and early leaf spot ranged from
12-49 days, 13-38 days and 13-39 days, respectively, between 12 C and 33 C An equation relating the
rate of pathogen development (1/LP) to temperature was fitted using daily mean temperatures to provide
three cardinal temperatures: the minimum (7"m,n), optimum (r^pc), and maximum (Tm,,). T^,^ was about
I2°C for rust and about 10°C for the two leaf-spot diseases. Top, for all three diseases was close to 25 C.
7"max was Bl'C for early leaf spot, and extrapolated values for late leaf spot and rust were about 35 and
40°C, respectively
A QTL study on late leaf spot and rust revealed one major QTL for molecular breeding for rust resistance in groundnut (Arachis hypogaea L.)
Late leaf spot (LLS) and rust are two major foliar diseases of groundnut (Arachis hypogaea L.) that often occur together leading to 50–70% yield loss in the crop. A total of 268 recombinant inbred lines of a mapping population TAG 24 × GPBD 4 segregating for LLS and rust were used to undertake quantitative trait locus (QTL) analysis. Phenotyping of the population was carried out under artificial disease epiphytotics. Positive correlations between different stages, high to very high heritability and independent nature of inheritance between both the diseases were observed. Parental genotypes were screened with 1,089 simple sequence repeat (SSR) markers, of which 67 (6.15%) were found polymorphic. Segregation data obtained for these markers facilitated development of partial linkage map (14 linkage groups) with 56 SSR loci. Composite interval mapping (CIM) undertaken on genotyping and phenotyping data yielded 11 QTLs for LLS (explaining 1.70–6.50% phenotypic variation) in three environments and 12 QTLs for rust (explaining 1.70–55.20% phenotypic variation). Interestingly a major QTL associated with rust (QTLrust01), contributing 6.90–55.20% variation, was identified by both CIM and single marker analysis (SMA). A candidate SSR marker (IPAHM 103) linked with this QTL was validated using a wide range of resistant/susceptible breeding lines as well as progeny lines of another mapping population (TG 26 × GPBD 4). Therefore, this marker should be useful for introgressing the major QTL for rust in desired lines/varieties of groundnut through marker-assisted backcrossing
Non-standard errors
In statistics, samples are drawn from a population in a data-generating process (DGP). Standard errors measure the uncertainty in estimates of population parameters. In science, evidence is generated to test hypotheses in an evidence generating process (EGP). We claim that EGP variation across researchers adds uncertainty: Non-standard errors (NSEs). We study NSEs by letting 164 teams test the same hypotheses on the same data. NSEs turn out to be sizable, but smaller for better reproducible or higher rated research. Adding peer-review stages reduces NSEs. We further find that this type of uncertainty is underestimated by participants
Differential Impact of Monsoon and Large Amplitude Internal Waves on Coral Reef Development in the Andaman Sea
The Andaman Sea and other macrotidal semi-enclosed tropical seas feature large amplitude internal waves (LAIW). Although LAIW induce strong fluctuations i.e. of temperature, pH, and nutrients, their influence on reef development is so far unknown. A better-known source of disturbance is the monsoon affecting corals due to turbulent mixing and sedimentation. Because in the Andaman Sea both, LAIW and monsoon, act from the same westerly direction their relative contribution to reef development is difficult to discern. Here, we explore the framework development in a number of offshore island locations subjected to differential LAIW- and SW-monsoon impact to address this open question. Cumulative negative temperature anomalies – a proxy for LAIW impact – explained a higher percentage of the variability in coral reef framework height, than sedimentation rates which resulted mainly from the monsoon. Temperature anomalies and sediment grain size provided the best correlation with framework height suggesting that so far neglected subsurface processes (LAIW) play a significant role in shaping coral reefs
Recurrent sinonasal chondrosarcoma with intracranial extension- A case report
Chondrosarcoma (CS) is the rare, slowly growing, malignant neoplasm. CS of the sino nasal cavity is extremely rare. It is usually present with common symptoms like nasal obstruction and epistaxis. It rarely present with ocular symptoms. Histopathological examination is useful for confirmation of diagnosis. Surgical excision is the treatment of choice. Radiotherapy is indicated if the tumor involves the vital structures. Here we are reporting a case of recurrent chondrosarcoma. Patient is presented to our department with proptosis of left eye and nasal obstruction since two months. Combined with neurosurgeon bi frontal craniotomy with endoscopic excision of mass done. Post operatively patient received adjuvant radiotherapy. Patient is on regular follow up
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