551 research outputs found
Comparison of different definitions to classify remission and sustained remission: 1 year TEMPO results
To assess methods to calculate achieving and sustaining remission in a double blind randomised trial in patients with RA who received etanercept, methotrexate, or an etanercept/methotrexate combination. Remission was defined as DAS <1.6, DAS28 <2.6, and ACR70 response. Sustaining remission was analysed in three ways: (a) analysis of sustained DAS remission, DAS28 remission, or ACR70 response continuously for 6 months; (b) analysis of sustained remission appraised through a continuity rewarded scoring system, which is the weighted sum of all intervals in the study in which patients are in DAS or DAS28 remission; or (c) longitudinal modelling of remission odds using generalised estimating equations. Significantly more patients treated with the etanercept/methotrexate combination reached DAS remission (37%) than those treated with either methotrexate (14%) or etanercept (18%) alone (p <0.01). Results for DAS28 and for the ACR70 response were similar. Agreement between DAS remission and DAS28 remission was good, but agreement between either of these and the ACR70 response was less. Patients in DAS or DAS28 remission had a lower level of disease activity (fewer active joints, lower ESR) than those achieving ACR70 response; the converse was seen using pain VAS. The three methods were comparable for sustainability of remission and showed significant advantage for combination therapy, which increased the number and durability of remission periods. DAS and DAS28 remission results were similar for assessing achieving and sustaining remission in RA, frequently differing from patients classified as ACR70 responders. The three methods of examining duration of remission produced comparable result
Medii de programare: Teste grilă
Fişierul ataşat conţine: Cuprins, Bibliografie. Textul integral al publicației poate fi accesat pe site-ul http://library.utm.md. Accesul prin logare este valabil pentru studenţi, masteranzi, doctoranzi şi cadre didactice UTM.Culegerea de faţă este destinată studenţilor anilor de studii I, II
şi III de la secţia de zi şi cea cu frecvenţă redusă.
Sunt prezentate testele grilă la mediile de programare studiate
de către studenţi, după cum urmează: TURBO PASCAL, MS
EXCEL, MS ACCESS, FOXPRO. Sunt indicate sursele
bibliografice, materiale de referinţă care vor fi de folos la pregătirea
pentru atestări, colocvii şi examene la disciplinele susnumite
Universities’ social responsibility through the lens of strategic planning: A content analysis
This paper examines the degree of social responsibility integration in Italian public universities’ medium and long-term planning documents. We adopted a qualitative approach, applying the content analysis technique to a selected sample of 20 strategic plans issued by Italian large and mega universities. The coding instrument was developed considering the 17 Sustainable Development Goals (SDGs) contained in the United Nations 2030 Agenda. Therefore, we identified 17 categories and 103 key symbols. The analysis undertaken showed that to date, Italian public universities still pay little attention in their planning documents to objectives regarding the multiple dimensions of Social Responsibility, mainly in relation to environmental issues, a failure detrimental to University Social Responsibility implementation and achievement. However, there is a greater sensitivity to Social Responsibility issues in some universities’ planning documents, therefore also more mature practices can be identified, showing universities that have institutionalized the concept of sustainability in their planning documents
When and why entrepreneurial employees want to quit their job: Exploring two conflicting mechanisms
Past turnover research has posited personality traits as important antecedents to quit intentions. Nevertheless, previous literature has not investigated the relationship between employees’ entrepreneurial tendencies—a constellation of domain specific traits—and turnover. Drawing on dispositional trait theory and attraction‐selection‐attrition theory, we propose engagement and intentions to start a business as mediators of the relationship between entrepreneurial tendencies and quit intentions. We test our predictions in a sample of full‐time employees from the United Kingdom (N = 224). In line with our hypotheses, an inconsistent mediation is found, where both positive and negative links between entrepreneurial tendencies and turnover intentions were mediated by engagement and intentions to start a business respectively. Thus, entrepreneurial employees were more likely to be engaged, but at the same time also more likely to be considering starting their own business, leading to a conflicting relationship to turnover intentions. The current study informs the human resource management literature concerning the motivational mechanisms explaining turnover intentions among entrepreneurial employees. It also provides practical insights with regards to the effective management of this workforce
Quantitative Analysis of Histone Modifications: Formaldehyde Is a Source of Pathological N6-Formyllysine That Is Refractory to Histone Deacetylases
Aberrant protein modifications play an important role in the pathophysiology of many human diseases, in terms of both dysfunction of physiological modifications and the formation of pathological modifications by reaction of proteins with endogenous electrophiles. Recent studies have identified a chemical homolog of lysine acetylation, N[superscript 6]-formyllysine, as an abundant modification of histone and chromatin proteins, one possible source of which is the reaction of lysine with 3′-formylphosphate residues from DNA oxidation. Using a new liquid chromatography-coupled to tandem mass spectrometry method to quantify all N[superscript 6]-methyl-, -acetyl- and -formyl-lysine modifications, we now report that endogenous formaldehyde is a major source of N[superscript 6]-formyllysine and that this adduct is widespread among cellular proteins in all compartments. N[superscript 6]-formyllysine was evenly distributed among different classes of histone proteins from human TK6 cells at 1–4 modifications per 10[superscript 4] lysines, which contrasted strongly with lysine acetylation and mono-, di-, and tri-methylation levels of 1.5-380, 5-870, 0-1400, and 0-390 per 10[superscript 4] lysines, respectively. While isotope labeling studies revealed that lysine demethylation is not a source of N[superscript 6]-formyllysine in histones, formaldehyde exposure was observed to cause a dose-dependent increase in N[superscript 6]-formyllysine, with use of [[superscript 13]C,[superscript 2]H[subscript 2]]-formaldehyde revealing unchanged levels of adducts derived from endogenous sources. Inhibitors of class I and class II histone deacetylases did not affect the levels of N[superscript 6]-formyllysine in TK6 cells, and the class III histone deacetylase, SIRT1, had minimal activity (<10%) with a peptide substrate containing the formyl adduct. These data suggest that N[superscript 6]-formyllysine is refractory to removal by histone deacetylases, which supports the idea that this abundant protein modification could interfere with normal regulation of gene expression if it arises at conserved sites of physiological protein secondary modification
Direct-write electron-beam lithography of an IR antenna-coupled microbolometer onto the surface of a hemispherical lens
This article describes a method for performing direct-write lithography of an IR antenna-coupled microbolometer onto the surface of a hemispherical lens. Antennas on a dielectric half-space receive power more efficiently from the substrate side than from the air side. The use of a hemispherical lens facilitates reception through the substrate as well as elimination of trapped surface waves that would normally occur in the substrate. Using direct-write lithography onto the surface of the hemispherical lens eliminates the potential of an air gap between the antenna and lens. Additionally, the accuracy of alignment between the antenna and the center of the lens is controlled at the lithographic step. As a result, there is increased responsivity is observed in the antenna-coupled microbolometer when illuminated from the substrate-side compared to air-side illumination. (c) 2006 American Vacuum Society
Investigation into the effect of season on oestrus in gilts over two years of climate adaptation
This study examined the changes in age at first oestrus, the weaning-to-oestrus interval (WEI), and duration of oestrus (DE) in a Yorkshire sow population during two years of adaptation from a northern (55°48′N, 9°13′W) European region to a southern (44°03′N, 23°35′W) one. The adaptation process induced a grouping effect of gilts around the mean age of the onset of puberty. Autumn and spring were characterized by the most enhanced gilt grouping effect at 201 to 210 days of age. The same effect was found for oestrus duration, which declined from a 12- to 96-hour range in the first year to an 18- to 90-hour range in the second year. The mean age of first oestrus was 0.8 days significantly lower in the second year compared with the first; the maximal lowering (1.7 days) occurred in the winter season. The WEI decreased significantly from the first to the second year in all four seasons, by a mean annual value of 0.88 days (15.9%). DE increased by 6.5 hours (significantly for all seasons) from the first year to the next. DE showed an ascending evolution from winter to spring and descending from summer to autumn, during each monitored year. Adaptation influences the oestrus in sows. The age to puberty and WEI tended to decrease, while DE tended to increase, with a simultaneous decrease in the variability of these oestrus parameters.Keywords: Age of puberty, climate conditions, length of oestrus, weaning to oestrus interva
Noi suşe de levuri cu caracter alcooligen ridicat izolate din flora indigenă a podgoriei Iaşi
The alcoholic fermentation of grapes must is highly desired when the
yeasts are tolerant to high osmotic pressure due to high concentrated sugar and
resistant to the toxic effects of the high alcohol concentration. In this context,
the research led to the selections made from Iasi vineyard – Copou vine centre
of new yeast strains with strong alcooligen character, Sacchoramyces genus.
New strains of isolated and selected yeasts have the ability to achieve full
alcoholic fermentation and has a good tolerance to high alcohol concentrations
(15.0 to 16.0 vol % alcohol). They may also restart the alcoholic fermentation
when the process was stopped at a concentration of 8.5 to 11.5% alcohol by
volume and still have a residual sugar content of 60 - 100 g/L
Heralded initialization of charge state and optical transition frequency of diamond tin-vacancy centers
Diamond Tin-Vacancy centers have emerged as a promising platform for quantum
information science and technology. A key challenge for their use in more
complex quantum experiments and scalable applications is the ability to prepare
the center in the desired charge state with the optical transition at a
pre-defined frequency. Here we report on heralding such successful preparation
using a combination of laser excitation, photon detection, and real-time logic.
We first show that fluorescence photon counts collected during an optimized
resonant probe pulse strongly correlate with the subsequent charge state and
optical transition frequency, enabling real-time heralding of the desired state
through threshold photon counting. We then implement and apply this heralding
technique to photoluminescence excitation measurements, coherent optical
driving, and an optical Ramsey experiment, finding strongly improved optical
coherence with increasing threshold. Finally, we demonstrate that the prepared
optical frequency follows the probe laser across the inhomogeneous linewidth,
enabling tuning of the transition frequency over multiple homogeneous
linewidths
- …
