23 research outputs found
Multitasking, but for what benefit? The dilemma facing Nigerian university students regarding part-time working.
Students working part-time while studying for a full-time university degree are commonplace in many Western countries. This paper however, examines the historically uncommon part-time working activities and career aspirations among Nigerian university students. In particular, how working is perceived to contribute to developing employability skills, and whether it is influenced by their self-efficacy. Survey data from 324 questionnaires was collected from a federal university, although the data analysis used a mixed-method. The findings indicate that despite low levels of part-time working generally among students, older, more experienced, higher level and female students, place a premium on the skills that part-time work can develop. Moreover, self-efficacy and being female, is a significant predictor in understanding part-time work and career aspirations. This study offers originality by focusing on students’ part-time work, the value working provides, and its link with career aspirations, within a relatively unexplored context of Nigeria
Discovery of salermide-related sirtuin inhibitors: binding mode studies and antiproliferative effects in cancer cells including cancer stem cells.
Chemical changes performed on 1a (sirtinol) led to a series of
SIRT1/2 inhibitors, in some cases more potent than 1a mainly against
SIRT1. Tested in human leukemia U937 cells, the benzamide and anilide
derivatives 1b, 1c, 2b, and 2c as well as the 4-(2-phenylpropyl)thioanalogue
4c showed huge apoptosis induction, while some sulfinyl and sulfonyl
derivatives (5b, 5c, and 6a−c) were highly efficient in granulocytic
differentiation. When assayed in human leukemia MOLT4 as well as in
human breast MDA-MB-231 and colon RKO cancer cell lines, the anilide 2b
(salermide) and the phenylpropylthio analogue 4b emerged as the most
potent antiproliferative agents. Tested on colorectal carcinoma and
glioblastoma multiforme cancer stem cells (CSCs) from patients, 2b was
particularly potent against colorectal carcinoma CSCs, while 4b, 6a, and the
SIRT2-selective inhibitor AGK-2 showed the highest effect against
glioblastoma multiforme CSCs. Such compounds will be further explored for their broad-spectrum anticancer properties
Chroman-4-one- and Chromone-Based Sirtuin 2 Inhibitors with Antiproliferative Properties in Cancer Cells
Peer reviewe
Discovery of Salermide-Related Sirtuin Inhibitors: Binding Mode Studies and Antiproliferative Effects in Cancer Cells Including Cancer Stem Cells.
Chemical changes performed on 1a (sirtinol) led to a series of SIRT1/2 inhibitors in some cases more potent than 1a mainly against SIRT1. Tested in human leukemia U937 cells, the benzamide and anilide derivatives 1b, 1c, 2b, and 2c as well as the 4-(2-phenylpropyl)thioanalogue 4c showed huge apoptosis induction, while some sulfinyl and sulfonyl derivatives (5b, 5c, and 6a-c) were highly efficient in granulocytic differentiation. When assayed in human leukemia MOLT4 as well as in human breast MDA-MB-231 and colon RKO cancer cell lines, the anilide 2b (salermide) and the phenylpropylthio analogue 4b emerged as the most potent antiproliferative agents. Tested on colorectal carcinoma and glioblastoma multiforme cancer stem cells (CSCs) from patients, 2b was particularly potent against colorectal carcinoma CSCs, while 4b, 6a and the SIRT2-selective inhibitor AGK-2 showed the highest effect against glioblastoma multiforme CSCs. Such compounds will be further explored for their broad-spectrum anticancer properties
New tools to evaluate plastic ingestion by northern fulmars applied to North Sea monitoring data 2002–2018
The work at Wageningen Marine Research for this publication was partially funded by RijksWaterstaat (RWS) of the Netherlands Ministry of Infrastructure and Water Management as a document to support future policy decision making.Monitoring plastic in stomachs of beached northern fulmars for OSPAR's Ecological Quality Objectives (EcoQOs) has been incorporated into the European Marine Strategy Framework Directive (MSFD). This paper aims to provide the appropriate tools to interpret the monitoring results. MSFD requires a data-derived threshold value (Fulmar-TV) representing ‘Good Environmental Status’. Such Fulmar-TV was calculated from near-pristine Canadian Arctic data where 10.06% of fulmars exceeded the level of 0.1 g ingested plastic. This Fulmar-TV is almost identical to the earlier OSPAR EcoQO, arbitrarily set at 10%. The MSFD approach was evaluated for 2661 North Sea fulmars in 2002–2018. Between 2014 and 2018, 51% of 393 fulmars exceeded 0.1 g plastic, significantly above the proposed Fulmar-TV. Linear regression of individual ingested plastic mass over the 2009–2018 period indicates a significant decrease. Over the longer term 2002–2018, logistic regression of annual EcoQ% shows a significant decline and predicts compliance with the Fulmar-TV by 2054.Publisher PDFPeer reviewe
New tools to evaluate plastic ingestion by northern fulmars applied to North Sea monitoring data 2002–2018
Monitoring plastic in stomachs of beached northern fulmars for OSPAR's Ecological Quality Objectives (EcoQOs) has been incorporated into the European Marine Strategy Framework Directive (MSFD). This paper aims to provide the appropriate tools to interpret the monitoring results. MSFD requires a data-derived threshold value (Fulmar-TV) representing ‘Good Environmental Status’. Such Fulmar-TV was calculated from near-pristine Canadian Arctic data where 10.06% of fulmars exceeded the level of 0.1 g ingested plastic. This Fulmar-TV is almost identical to the earlier OSPAR EcoQO, arbitrarily set at 10%. The MSFD approach was evaluated for 2661 North Sea fulmars in 2002–2018. Between 2014 and 2018, 51% of 393 fulmars exceeded 0.1 g plastic, significantly above the proposed Fulmar-TV. Linear regression of individual ingested plastic mass over the 2009–2018 period indicates a significant decrease. Over the longer term 2002–2018, logistic regression of annual EcoQ% shows a significant decline and predicts compliance with the Fulmar-TV by 2054