INVOLVEMENT AND COMMUNICATION ON FACE BOOK: EXPLORING INTERACTION PATTERNS OF PERSONALITY AND ADULT ATTACHMENT STYLES

The study is intended to explore individuals’ involvementand interaction on Facebook as an outcome of personality dimensions,and attachment styles. Participants (N=383) Facebook users included 60.3% females with an age range of 18-27 years (means = 22.47±2.91). Results suggested that extraversion (β=.12, p<.05) and neuroticism (β=.15, p<.05) predicted Facebook usage (intensity), and effects of neuroticism is moderated by secure attachment style (β interaction= - .23, p<.01). Social interaction on Facebook was predicted by extraversion (β=.14, p<.05) and the effects was moderated by secure attachment style (β interaction= -.16, p<.05). It is concluded that computer mediated communication on social networking sites is a complex phenomenon and shall be studied as a consequence of interaction between personal and environmental factors

PENDAMPINGAN PENINGKATAN HASIL BELAJAR MATEMATIKA SISWA KELAS XI MA YPPI KABUPATEN BULUKUMBA MELALUI PEMBERIAN TUGAS

AbstrakTujuan pengabdian ini adalah untuk mengetahui peningkatan hasil belajar siswa pada mata pelajaran matematika siswa kelas XI MA YPPI Kabupaten Bulukumba dengan penerapan pemberian tugas. Populasi dalam pengabdian ini adalah seluruh siswa kelas XI MA YPPI Kab. Bulukumba yang berjumlah 52 orang dan terbagi menjadi 2 kelas. Teknik pengambilan sampel menggunakan teknik sampling jenuh. Kelas eksperimen adalah kelas XIa sebanyak 27 siswa, yang menjadi kelas kontrol adalah kelas XIb sebanyak 25 siswa. Instrumen yang digunakan yaitu tes essai sebanyak 5 soal, dan analisis data yang digunakan yaitu analisis deskriptif dan analisis inferensial. Hasil analisis statistik deskriptif diperoleh rata-rata post-test kelas eksperimen 83,06 dan rata-rata post-test kelas kontrol 72,48. Sedangkan hasil analisis inferensial dalam pengujian hipotesis data menunjukkan nilai thitung lebih besar daripada nilai ttabel (3,38>1,68) dan rata-rata hasil belajar kelas eksperimen lebih tinggi dibanding rata-rata hasil belajar kelas kontrol, dengan demikian dapat disimpulkan bahwa penggunaan pembelajaran pemberian tugas efektif dalam meningkatkan hasil belajar matematika pada siswa kelas XI MA YPPI Kab. Bulukumba. AbstractThe dedication of this study were knowing the in crease in student learning out comes in mathematics Class XI students of MA YPPI, Bulukumba Regency with the implementation of assignments. The population in this study were all students of class XI MA YPPI Kab. Bulukumba, amounting to 52 people and divided into 2 classes. The sampling technique used a saturated sampling technique. The experimental class was class XIA with 27 students, the control class was class XIB with 25 students. The instruments used were 5 essay tests, and the data analysis used was descriptive analysis and inferential analysis. The results of the descriptive statistical analysis showed that thepost-test average for the experimental class was 83.06 and the post-test average for the control class was 72.48. While the result sofin ferential analysis in testing the data hypothesis show that the t-count value is greater than the t-table value (3.38> 1.68) and the average learning out comes of the experimental class are higher than the average learning outcomes of the control class, thus it can beconcluded that the use of learning assignment is effective in improving mathematics learning outcomes in class XI MA YPPI Kab. Bulukumba

Phase space analysis of interacting dark energy in f(T) cosmology

In this paper, we examine the interacting dark energy model in $f(T)$ cosmology. We assume dark energy as a perfect fluid and choose a specific cosmologically viable form $f(T)= \beta\sqrt{T}$. We show that there is one attractor solution to the dynamical equation of $f(T)$ Friedmann equations. Further we investigate the stability in phase space for a general $f(T)$ model with two interacting fluids. By studying the local stability near the critical points, we show that the critical points lie on the sheet $u^*=(c-1)v^*$ in the phase space, spanned by coordinates $(u,v,\Omega,T)$. From this critical sheet, we conclude that the coupling between the dark energy and matter $c\in (-2,0)$.Comment: 13 pages,2 figures, Published in "Central European Journal of Physics

Impact of national lockdown on the hyperacute stroke care and rapid transient ischaemic attack outpatient service in a comprehensive tertiary stroke centre during the COVID-19 pandemic

Background: The COVID-19 pandemic is having major implications for stroke services worldwide. We aimed to study the impact of the national lockdown period during the COVID-19 outbreak on stroke and transient ischemic attack (TIA) care in London, UK. Methods: We retrospectively analyzed data from a quality improvement registry of consecutive patients presenting with acute ischemic stroke and TIA to the Stroke Department, Imperial College Health Care Trust London during the national lockdown period (between March 23rd and 30th June 2020). As controls, we evaluated the clinical reports and stroke quality metrics of patients presenting with stroke or TIA in the same period of 2019. Results: Between March 23rd and 30th June 2020, we documented a fall in the number of stroke admissions by 31.33% and of TIA outpatient referrals by 24.44% compared to the same period in 2019. During the lockdown, we observed a significant increase in symptom onset-to-door time in patients presenting with stroke (median = 240 vs. 160 min, p = 0.020) and TIA (median = 3 vs. 0 days, p = 0.002) and a significant reduction in the total number of patients thrombolysed [27 (11.49%) vs. 46 (16.25%, p = 0.030)]. Patients in the 2020 cohort presented with a lower median pre-stroke mRS (p = 0.015), but an increased NIHSS (p = 0.002). We registered a marked decrease in mimic diagnoses compared to the same period of 2019. Statistically significant differences were found between the COVID and pre-COVID cohorts in the time from onset to door (median 99 vs. 88 min, p = 0.026) and from onset to needle (median 148 vs. 126 min, p = 0.036) for thrombolysis whilst we did not observe any significant delay to reperfusion therapies (door-to-needle and door-to-groin puncture time). Conclusions: National lockdown in the UK due to the COVID-19 pandemic was associated with a significant decrease in acute stroke admission and TIA evaluations at our stroke center. Moreover, a lower proportion of acute stroke patients in the pandemic cohort benefited from reperfusion therapy. Further research is needed to evaluate the long-term effects of the pandemic on stroke care

Mechanical thrombectomy in acute basilar artery stroke: a systematic review and Meta-analysis of randomized controlled trials

Background: The evidence for mechanical thrombectomy in acute basilar artery occlusion has until now remained inconclusive with basilar artery strokes associated with high rates of death and disability. This systematic review and meta-analysis will summarize the available evidence for the effectiveness of mechanical thrombectomy in acute basilar artery occlusion compared to best medical therapy. Methods: We conducted a systematic review and meta-analysis of randomized controlled trials using Embase, Medline and the Cochrane Central Register of Controlled Trials (CENTRAL). We calculated risk ratios (RRs) and 95% confidence intervals (CIs) to summarize the effect estimates for each outcome. Results: We performed a random effects (Mantel-Haenszel) meta-analysis of the four included randomized controlled trials comprising a total of 988 participants. We found a statistically significant improvement in the rates of those with a good functional outcome (mRS 0–3, RR 1.54, 1.16–2.06, p = 0.003) and functional independence (mRS 0–2, RR 1.69, 1.05–2.71, p = 0.03) in those who were treated with thrombectomy when compared to best medical therapy alone. Thrombectomy was associated with a higher level of sICH (RR 7.12, 2.16–23.54, p = 0.001) but this was not reflected in a higher mortality rate, conversely the mortality rate was significantly lower in the intervention group (RR 0.76, 0.65–0.89, p = 0.0004). Conclusions: Our meta-analysis of the recently presented randomized controlled studies is the first to confirm the disability and mortality benefit of mechanical thrombectomy in basilar artery stroke

Psychometric properties of three measures of “Facebook engagement and/or addiction” among a sample of English speaking Pakistani university students

For researchers interested in measuring the construct of “Facebook engagement and/or addiction,” there are a number of existing measures including the Bergen Facebook Addiction Scale, the Facebook Intensity Scale, and the Addictive Tendencies Scale. Currently, there is limited data on the psychometric properties of these three scales, especially among South Asian samples. The present aim was to address this shortfall. A sample of 308 English-speaking Pakistani university students completed the scales, in their original English versions, on two occasions separated by four weeks. Results demonstrated that for each of the scales, across both administrations, satisfactory psychometric properties were found, including internal reliability, temporal stability, and construct validity. Moreover, for these three scales, using confirmatory factor analysis, a one-factor structure was generally found to be a good description of the data for both male and female samples. These data provide further evidence for the reliability and validity of three scales concerned with “Facebook engagement and/or addiction.

Percutaneous coronary intervention in stable angina (ORBITA): a double-blind, randomised controlled trial

Background: Symptomatic relief is the primary goal of percutaneous coronary intervention (PCI) in stable angina and is commonly observed clinically. However, there is no evidence from blinded, placebo-controlled randomised trials to show its efficacy. Methods: ORBITA is a blinded, multicentre randomised trial of PCI versus a placebo procedure for angina relief that was done at five study sites in the UK. We enrolled patients with severe (≥70%) single-vessel stenoses. After enrolment, patients received 6 weeks of medication optimisation. Patients then had pre-randomisation assessments with cardiopulmonary exercise testing, symptom questionnaires, and dobutamine stress echocardiography. Patients were randomised 1:1 to undergo PCI or a placebo procedure by use of an automated online randomisation tool. After 6 weeks of follow-up, the assessments done before randomisation were repeated at the final assessment. The primary endpoint was difference in exercise time increment between groups. All analyses were based on the intention-to-treat principle and the study population contained all participants who underwent randomisation. This study is registered with ClinicalTrials.gov, number NCT02062593. Findings: ORBITA enrolled 230 patients with ischaemic symptoms. After the medication optimisation phase and between Jan 6, 2014, and Aug 11, 2017, 200 patients underwent randomisation, with 105 patients assigned PCI and 95 assigned the placebo procedure. Lesions had mean area stenosis of 84·4% (SD 10·2), fractional flow reserve of 0·69 (0·16), and instantaneous wave-free ratio of 0·76 (0·22). There was no significant difference in the primary endpoint of exercise time increment between groups (PCI minus placebo 16·6 s, 95% CI −8·9 to 42·0, p=0·200). There were no deaths. Serious adverse events included four pressure-wire related complications in the placebo group, which required PCI, and five major bleeding events, including two in the PCI group and three in the placebo group. Interpretation: In patients with medically treated angina and severe coronary stenosis, PCI did not increase exercise time by more than the effect of a placebo procedure. The efficacy of invasive procedures can be assessed with a placebo control, as is standard for pharmacotherapy