ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMP PADA MATERI TEOREMA PHYTHAGORAS DITINJAU DARI KEMAMPUAN AWAL MATEMATIS

ABSTRAK Nelki Lestari, (2021) : Analisis Kemampuan Pemecahan Masalah Matematis Siswa SMP Pada Materi Teorema Phythagoras Ditinjau Dari Kemampuan Awal Matematis Penelitian ini bertujuan untuk mendeskripsikan bagaimana kemampuan pemecahan masalah matematis siswa SMP pada materi teorema phythagoras ditinjau dari kemampuan awal matematis. Jenis penelitian ini merupakan penelitian kualitatif dengan metode deskriptif. Subjek dalam penelitian ini berjumlah 20 siswa kelas VIIIA SMP Negeri 01 Kampar. Adapun teknik sampling yang digunakan adalah purposive sampling. Teknik pengumpulan data yaitu tes,wawancara dan dokumentasi. Instrumen yang digunakan berupa soal tes kemampuan awal matematis pada materi segiempat dan segitiga berbentuk uraian, soal tes kemampuan pemecahan masalah matematis pada materi teorema phythagoras berbentuk uraian dan pedoman wawancara. Pengolahan dan analisis data menggunakan teknik Miles dan Huberman yang meliputi 3 tahap yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa kelompok siswa dengan kemampuan awal matematis tinggi memiliki persentase rata-rata sebesar 62,50% yang berada pada tingkat kategori tinggi, kelompok siswa dengan kemampuan awal matematis sedang memiliki persentase rata-rata sebesar 71,76% yang berada pada tingkat kategori sedang dan siswa dengan kemampuan awal matematis rendah memiliki persentase rata-rata sebesar 35,65% yang berada pada tingkat kategori rendah. Kata Kunci : Analisis, Kemampuan Pemecahan Masalah Matematis, Kemampuan Awal Matematis, Kualitatif, Deskripti

Witnessing and bearing witness. On offering systemic consultations and practices of solidarity at the Uyghur Tribunal

The experience of offering therapeutic support to the Uyghur Tribunal held in London in June and September 2021 powerfully brought home the critical variations in the meanings of witnessing and bearing witness and what they entail. In this paper, we explore the role of witnessing through offering systemic consultation to those who have experienced human rights violations and those who have witnessed these accounts and discuss our observations about the healing power of acts of resistance/activism. We are four systemic psychotherapists, with a particular interest in narrative practices, and approaches that foreground social justice. With a concern not to become “failed witnesses” which Jessica Benjamin (2014) describes as “a failure of those not involved in the acts of injury to serve the function of acknowledging and actively countering or repairing the suffering and injury that they encounter as observers in the social world”, we attempt here to communicate our experience of witnessing and joining with, through practices of solidarity, those bearing witness at the People's Tribunal held to hear evidence about China's alleged genocide and crimes against humanity against Uyghur, Kazakh and other Turkic Muslim populations

The “TIDE”-Algorithm for the Weaning of Patients With Cardiogenic Shock and Temporarily Mechanical Left Ventricular Support With Impella Devices. A Cardiovascular Physiology-Based Approach

Objectives: Mechanical circulatory support (MCS) is often required to stabilize therapy-refractory cardiogenic shock patients. Left ventricular (LV) unloading by mechanical ventricular support (MVS) via percutaneous devices, such as with Impella® axial pumps, alone or in combination with extracorporeal life support (ECLS, ECMELLA approach), has emerged as a potential clinical breakthrough in the field. While the weaning from MCS is essentially based on the evaluation of circulatory stability of patients, weaning from MVS holds a higher complexity, being dependent on bi-ventricular function and its adaption to load. As a result of this, weaning from MVS is mostly performed in the absence of established algorithms. MVS via Impella is applied in several cardiogenic shock etiologies, such as acute myocardial infarction (support over days) or acute fulminant myocarditis (prolonged support over weeks, PROPELLA). The time point of weaning from Impella in these cohorts of patients remains unclear. We here propose a novel cardiovascular physiology-based weaning algorithm for MVS. Methods: The proposed algorithm is based on the experience gathered at our center undergoing an Impella weaning between 2017 and 2020. Before undertaking a weaning process, patients must had been ECMO-free, afebrile, and euvolemic, with hemodynamic stability guaranteed in the absence of any inotropic support. The algorithm consists of 4 steps according to the acronym TIDE: (i) Transthoracic echocardiography under full Impella-unloading; (ii) Impella rate reduction in single 8-24 h-steps according to patients hemodynamics (blood pressure, heart rate, and ScVO2), including a daily echocardiographic assessment at minimal flow (P2); (iii) Dobutamine stress-echocardiography; (iv) Right heart catheterization at rest and during Exercise-testing via handgrip. We here present clinical and hemodynamic data (including LV conductance data) from paradigmatic weaning protocols of awake patients admitted to our intensive care unit with cardiogenic shock. We discuss the clinical consequences of the TIDE algorithm, leading to either a bridge-to-recovery, or to a bridge-to-permanent LV assist device (LVAD) and/or transplantation. With this protocol we were able to wean 74.2% of the investigated patients successfully. 25.8% showed a permanent weaning failure and became LVAD candidates. Conclusions: The proposed novel cardiovascular physiology-based weaning algorithm is based on the characterization of the extent and sustainment of LV unloading reached during hospitalization in patients with cardiogenic shock undergoing MVS with Impella in our center. Prospective studies are needed to validate the algorithm

The effectiveness, acceptability and cost-effectiveness of psychosocial interventions for maltreated children and adolescents: an evidence synthesis.

BACKGROUND: Child maltreatment is a substantial social problem that affects large numbers of children and young people in the UK, resulting in a range of significant short- and long-term psychosocial problems. OBJECTIVES: To synthesise evidence of the effectiveness, cost-effectiveness and acceptability of interventions addressing the adverse consequences of child maltreatment. STUDY DESIGN: For effectiveness, we included any controlled study. Other study designs were considered for economic decision modelling. For acceptability, we included any study that asked participants for their views. PARTICIPANTS: Children and young people up to 24 years 11 months, who had experienced maltreatment before the age of 17 years 11 months. INTERVENTIONS: Any psychosocial intervention provided in any setting aiming to address the consequences of maltreatment. MAIN OUTCOME MEASURES: Psychological distress [particularly post-traumatic stress disorder (PTSD), depression and anxiety, and self-harm], behaviour, social functioning, quality of life and acceptability. METHODS: Young Persons and Professional Advisory Groups guided the project, which was conducted in accordance with Cochrane Collaboration and NHS Centre for Reviews and Dissemination guidance. Departures from the published protocol were recorded and explained. Meta-analyses and cost-effectiveness analyses of available data were undertaken where possible. RESULTS: We identified 198 effectiveness studies (including 62 randomised trials); six economic evaluations (five using trial data and one decision-analytic model); and 73 studies investigating treatment acceptability. Pooled data on cognitive-behavioural therapy (CBT) for sexual abuse suggested post-treatment reductions in PTSD [standardised mean difference (SMD) -0.44 (95% CI -4.43 to -1.53)], depression [mean difference -2.83 (95% CI -4.53 to -1.13)] and anxiety [SMD -0.23 (95% CI -0.03 to -0.42)]. No differences were observed for post-treatment sexualised behaviour, externalising behaviour, behaviour management skills of parents, or parental support to the child. Findings from attachment-focused interventions suggested improvements in secure attachment [odds ratio 0.14 (95% CI 0.03 to 0.70)] and reductions in disorganised behaviour [SMD 0.23 (95% CI 0.13 to 0.42)], but no differences in avoidant attachment or externalising behaviour. Few studies addressed the role of caregivers, or the impact of the therapist-child relationship. Economic evaluations suffered methodological limitations and provided conflicting results. As a result, decision-analytic modelling was not possible, but cost-effectiveness analysis using effectiveness data from meta-analyses was undertaken for the most promising intervention: CBT for sexual abuse. Analyses of the cost-effectiveness of CBT were limited by the lack of cost data beyond the cost of CBT itself. CONCLUSIONS: It is not possible to draw firm conclusions about which interventions are effective for children with different maltreatment profiles, which are of no benefit or are harmful, and which factors encourage people to seek therapy, accept the offer of therapy and actively engage with therapy. Little is known about the cost-effectiveness of alternative interventions. LIMITATIONS: Studies were largely conducted outside the UK. The heterogeneity of outcomes and measures seriously impacted on the ability to conduct meta-analyses. FUTURE WORK: Studies are needed that assess the effectiveness of interventions within a UK context, which address the wider effects of maltreatment, as well as specific clinical outcomes. STUDY REGISTRATION: This study is registered as PROSPERO CRD42013003889. FUNDING: The National Institute for Health Research Health Technology Assessment programme

The ownership of human genes and human tissue

SIGLEAvailable from British Library Document Supply Centre-DSC:DXN030871 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

The biosynthesis of terpenoids in Gibberella fujikuroi

The aim of this work was to study the terpenoid biosynthesis and its regulation in the fungus Gibberella fujikuroi. This was facilitated by the use of a number of mutants of G. fujikuroi produced using UV radiation or N-methyl-N'-nitrosoguanidine and selected mainly by mutation in colour and photoregulation (Avalos et al., 1985). A separation procedure for the carotenoids was devised and up to 9 carotenoids were isolated. Their levels were measured in wild type G. fujikuroi and 4- of the mutants in both light and dark grown conditions. From this a carotenogenic pathway for G. fujikuroi was proposed and the carotenoid levels were shown to be photoregulated. These levels were also affected by the nature of the growth medium used. A method for the separation of 5 of the gibberellins (GA3, GA4, GA7, GA13 and GA-14) was developed using a reverse phase, Spherisorb S50DS HPLC column. This methodology was used to determine time courses for gibberellin production in the wild type and 2 mutant strains. The results showed that the rate of GA production was increased in the mutants, compared to the wild type. Also light and dark grown gibberellin levels were measured in 6 mutants and 2 wild type strains, along with the effects of different media. It was shown, as in carotenogenesis, gibberellin levels were photoinduced and that the levels of photoinduction were increased to differing degrees in the mutants compared to the wild types. The overall gibberellin levels were also shown to be affected by the nature of the growth medium. A cell-free system for G. fujikuroi was developed for theincorporation of mevalonic acid into the terpenoids, which gave the possibility of developing systems for studying individual enzymes in terpenoid biosynthesis. A coupled system was developed for assaying phytoene synthetase using the cell-free system of a non-carotenoid producing mutant to produce substrate for phytoene synthetase coupled to extracts of a high-phytoene producing mutant. This assay was then used in attempts to purify phytoene synthetase.<p

The story of my family : The German-Jewish family of Hermann Nelki /

History of the Nelki and Russo families in Berlin; concentrates mainly on first half of the 20th century; most members of the family were physicians; persecution in Nazi period; emigration to England; attached is the story of Eva Edith Ehrlich who survived the war years in Berlin in hiding.Synopsis in fileWolfgang Nelki was born in Berlin in 1911 to the dentist Hermann Nelki. He became a Communist and member of the Socialist Student Organization (SSB) while studying law in Berlin. In 1933 he emigrated to France, and later to Belgium and England