Testing an Optimised Expansion on Z_2 Lattice Models

We test an optimised hopping parameter expansion on various Z_2 lattice scalar field models: the Ising model, a spin-one model and lambda (phi)^4. We do this by studying the critical indices for a variety of optimisation criteria, in a range of dimensions and with various trial actions. We work up to seventh order, thus going well beyond previous studies. We demonstrate how to use numerical methods to generate the high order diagrams and their corresponding expressions. These are then used to calculate results numerically and, in the case of the Ising model, we obtain some analytic results. We highlight problems with several optimisation schemes and show for the best scheme that the critical exponents are consistent with mean field results to at least 8 significant figures. We conclude that in its present form, such optimised lattice expansions do not seem to be capturing the non-perturbative infra-red physics near the critical points of scalar models.Comment: 47 pages, some figures in colour but will display fine in B

Community music therapy with unaccompanied child and adolescent refugees in a residential setting

Relatório de estágio realizado no âmbito do mestrado em Musicoterapia, Universidade Lusíada de Lisboa, 2021.Exame público realizado em 4 de Março de 2022.Este relatório visa descrever o processo e os efeitos de uma intervenção de Musicoterapia Comunitária num contexto e espaço residencial em Lisboa, Portugal, para crianças e adolescentes refugiados não acompanhados. Durante o processo de deslocação e realojamento, os refugiados passam por um leque diversificado de experiências, geralmente traumáticas que poderão ter um efeito prejudicial no seu bem-estar e afetar negativamente a sua saúde mental. O objetivo geral da intervenção foi criar um sentido de comunidade e de pertença, aliviando sintomas de ansiedade e depressão. A música representa a nossa identidade cultural e proporciona um canal alternativo para expressar emoções, estimulando a comunicação num ambiente multilingue. Uma amostra de 35 residentes (idades: 11-20) e 8 membros do staff provenientes de 17 países diferentes participaram na intervenção. As sessões realizaram-se em grupo aberto ou individualmente, consistindo principalmente em técnicas ativas musicais - improvisação, aprendizagem de repertório, escrita e gravação de canções, técnicas recetivas - audição e discussão de música – e outras atividades artísticas tais como pintura. Foi realizada uma avaliação inicial com cada participante (residente) e um questionário no final do estágio. Os comportamentos negativos reduziram e os resultados do questionário revelaram que a participação na Musicoterapia reduziu os sentimentos negativos (tristeza, raiva, depressão, frustração, stress) em 25%. A musicoterapia comunitária constitui uma intervenção adequada neste contexto. Intervenções futuras beneficiarão de um desenvolvimento de projetos mensais, trabalhando com residentes ao longo do seu processo de aculturação e de uma investigação mais detalhada sobre a música e os pontos de vista da saúde mental das culturas presentes na CACR.This report aims to describe the process and effects of a Community Music Therapy intervention in a residential setting in Lisbon, Portugal for unaccompanied refugee children and adolescents. During the process of relocation refugees pass through a diverse range of traumatic experiences which can have a detrimental effect on their well-being and negatively affect their mental health. The overall purpose of the intervention was to create a sense of community and belonging and alleviate symptoms of anxiety and depression. Music represents our cultural identity and provides an alternative channel for expressing emotions and communication in a multilingual environment. A sample of 35 residents (ages 11-20) and 8 members of staff from 17 different countries participated in the intervention. Sessions were open group or individual consisting mostly of active music techniques; improvisation, learning repertoire, song writing and recording as well as receptive techniques; music listening and discussion and art activities such as painting. An initial evaluation was carried out with each participant (resident) and a questionnaire at the end of the internship. Negative behaviours were reduced, and results of the questionnaire revealed that participating in music therapy reduced negative feelings (sadness, anger, depression, frustration, stress) by 25%. Community music therapy is a suitable intervention in this setting. Future interventions would benefit from a development of monthly projects, working with residents further along their acculturation process and more detailed research on the music and views of mental health of the cultures present in CACR

Influence of e-Content Based Coaching on Selected Fundamental Skills in Field Hockey

The purpose of the study was to examine the influence of e-content based coaching on selected fundamental skills in Field Hockey. To achieve the purpose of this study 30 male under graduate students from Meenatchi Ramasamy group of institutions, Thathanur, Tamilnadu, India were selected as subjects and their age ranged between 17 and 20 years. The study was formulated as a true random group design, consisting of a pre-test and post-test. The subjects were randomly assigned to two equal groups of fifteen each and named as Group ‘A’ and Group ‘B’. Group ‘A’ underwent teaching & coaching with e-content package and Group ‘B’ undergone teaching & coaching without e-content package. The teaching & coaching with e-content group were shown the content developed electronically by the investigators and the other group was given teaching & coaching only in the field. Both the groups undergone respective schedule for six weeks on alternate days. Teaching & coaching session in the field lasted for 60 minutes and e-content schedule was meted out for 20 minutes. The fundamental skills namely straight hit, wrong foot hit, straight push, wrong foot push, straight flick, wrong foot flick and scoop in Hockey were selected as variables. The subjective rating was done by three qualified coaches on each skill selected in this study. The rating was done on 10 points scale by each coach and average on each skill was taken as individual score. Analysis of covariance was used, where the final means were adjusted for differences in the initial means, and the adjusted means were tested for significance. From the analysis of data it was found that the teaching & coaching combined with e-content package group showed significant improvement on all selected fundamental skills in Field Hockey

Gamma-irradiation effect on mycobiota composition of the painting canvas

U ovom radu proučavan je utjecaj gama zračenja naspram plijesni, ubikvitarnih mikroorganizama te jednih od najčešćih kolonizatora i uzroka propadanja predmeta kulturne baštine. Prevencija kao i sprječavanje daljne degradacije ovih predmeta, s visokim stupnjem učinkovitosti i sigurnosti, može se provesti korištenjem gama zračenja. Uzorci platna korišteni u istraživanju podijeljeni u dvije skupine (uzorci ne podvrgnuti vlažnoj inkubaciji i uzorci podvrgnuti vlažnoj inkubaciji prethodno zračenju), izloženi su zračenju izvora u Laboratoriju za radijacijsku kemiju i dozimetriju (LRKD) na Institutu Ruđer Bošković (IRB) u Zagrebu. Primijenjene su doze zračenja od 2, 7, 20 i 50 kGy pri dvjema brzinama zračenja (0,1 i 9,8 Gy s-1), nakon čega je slijedilo praćenje oporavka plijesni 0., 7., 14. i 28. dan od zračenja. Najzastupljenijim kolonizatorima platna pokazale su se Penicillium spp., Cladosporium spp., Aspergillus spp. te bijela plijesan i kvasci. Učinkovitije smanjenje koncentracije plijesni kod obje skupine uzoraka pri svim dozama zračenja zabilježeno je primjenom veće brzine zračenja (9,8 Gy s-1). S obzirom na bolji antifungalni učinak, posebice kod uzoraka inkubiranih u vlažnim uvjetima te dostupnih podataka iz literature o neškodljivosti gama zračenja za celulozne materijale, apsorpcijska doza od 7 kGy pri brzini zračenja od 9,8 Gy s-1, smatra se najboljim izborom. Najrezistentnijima su se pokazale Cladosporium spp. za čiju je otpornost zadužen pigment melanin prisutan unutar micelija plijesni te bijele plijesni i kvasci čije pronalaženje uzroka otpornosti leži u korištenju molekulsko-bioloških metoda u budućim ispitivanjima.In this thesis the effect of gamma radiation on mould was studied. Mould is an ubiquitous microorganism and one of the most common coloniser and cause of deterioration of objects of cultural heritage and arts. Highly successful and safe prevention of further degradation of aforementioned objects can be done using gamma radiation. Painting canvas samples used in this research were divided in two groups and irradiated in the Radiation chemistry and dosimetry laboratory at Ruđer Bošković Institute in Zagreb. Radiation doses of 2, 7, 20 and 50 kGy we used at 2 different speeds (0,1 i 9,8 Gy s-1 ) followed by monitoring of mould recovery at days 0., 7., 14. and 28. The most frequently found mould on canvases were those of genus Penicillium spp., Cladosporium spp., Aspergillus spp. and white mould and yeast. Higher radiation speed (9,8 Gy s-1) was shown to be more effective in reducing mould concentration in both groups and at all radiation doses. Absorption dose of 7 kGy at the speed of 9,8 Gy s-1 was found to be the best choice, based on literature sources on safety of gamma radiation on cellulose materials and better antifungal effect, observed especially in samples incubated at a higher humidity. Cladosporium spp., white mould and yeast exhibited the highest resistance to radiation. Cladosporium spp. resistance can be attributed to pigment melanin found in its mycelium. Further research using molecular biology methods is needed to elucidate the mechanisms of white mould and yeast resistance

An open source LoRa based vehicle tracking system

This work describes an open source tracking system that determines the location and speed of a vehicle in real-time. The system was inspired by the need to track tourist boats in UNESCO Kilim Karst Geoforest Park, Malaysia. Boats that travel too fast generate wakes that are suspected to cause ecological damage. In this work, geolocation information is provided by Arduino based transponders with Global Positioning System (GPS). Transponders periodically transmit location and speed data using LoRa through a gateway to a cloud server. On the server, open source software components implement a Geographical Information System (GIS) to manage the location and speed data for display and further analysis. The resulting prototype performed the required functions as expected

Maxillary Odontogenic Keratocyst Masquerading a Periapical Cyst

Odontogenic keratocysts previously termed, as keratocystic odontogenic tumor is a developmental odontogenic cyst. It is one of the most commonly occurring odontogenic cyst and is characterized by its aggressive behaviour, high recurrence rate and association with syndromes. A case of odontogenic keratocyst occurring in the maxillary anterior region is described here with emphasis on the importance of advanced imaging modalities like computed tomography in the diagnosis and treatment planning

HUBUNGAN ANTARA MINAT BELAJAR SISWA DAN PERHATIAN ORANG TUA DENGAN PRESTASI BELAJAR MATA PELAJARAN MENGELOLA SISTEM KEARSIPAN KELAS XI PROGRAM KEAHLIAN ADMINISTRASI PERKANTORAN SMK YPE SAWUNGGALIH KUTOARJO

HUBUNGAN ANTARA MINAT BELAJAR SISWA DAN PERHATIAN ORANG TUA DENGAN PRESTASI BELAJAR MATA PELAJARAN MENGELOLA SISTEM KEARSIPAN KELAS XI PROGRAM KEAHLIAN ADMINISTRASI PERKANTORAN SMK YPE SAWUNGGALIH KUTOARJO Oleh: Rivin Mulyati NIM. 12402245004 ABSTRAK Penelitian ini bertujuan untuk mengetahui: (1) hubungan antara minat belajar siswa dengan prestasi belajar, (2) hubungan antara perhatian orang tua dengan prestasi belajar, (3) hubungan antara minat belajar siswa dan perhatian orang tua secara bersama-sama dengan prestasi belajar mata pelajaran Mengelola Sistem Kearsipan pada siswa kelas XI Program Keahlian Administrasi Perkantoran SMK YPE Sawunggalih Kutoarjo. Jenis penelitian ini adalah penelitian ex-post facto, subjek penelitian adalah siswa kelas XI AP 1 dan XI AP 2 Program Keahlian Administrasi Perkantoran SMK YPE Sawunggalih Kutoarjo yang berjumlah 86 siswa. Pengumpulan data minat belajar siswa dan perhatian orang tua dilakukan dengan teknik pengumpulan data berupa angket, sedangkan data prestasi belajar diperoleh menggunakan teknik pengumpulan data dokumentasi berupa nilai ujian akhir semester gasal mata pelajaran Mengelola Sistem Kearsipan. Uji coba intrumen dilaksanakan pada 30 peserta didik di kelas XI AP 1 SMK Negeri 2 Kutoarjo. Uji validitas dilakukan dengan teknik korelasi Product Moment dari Pearson. Sedangkan uji reliabilitas digunakan rumus Alpha Cronbach. Data dianalisis dengan teknik Korelasi Product Moment dan korelasi ganda yang dilanjutkan dengan analisis regresi ganda. Tingkat signifikansi hasil analisis ditentukan sebesar 5%. Berdasarkan hasil penelitian diperoleh kesimpulan: (1) ada hubungan positif dan signifikan antara minat belajar siswa dengan prestasi belajar dengan harga rx1y sebesar 0,304, (2) ada hubungan positif dan signifikan antara perhatian orang tua dengan prestasi belajar dengan harga rx2y sebesar 0,317, (3) hubungan yang positif dan signifikan antara minat belajar siswa dan perhatian orang tua secara bersama-sama memberikan kontribusi koefisien determinasi (R2) sebesar 0,107, koefisien korelasi (R) sebesar 0,840, dan F hitung sebesar 5,297 terhadap prestasi belajar mata pelajaran Mengelola Sistem Kearsipan pada siswa kelas XI Program Keahlian Administrasi Perkantoran SMK YPE Sawunggalih Kutoarjo