1,687 research outputs found

    The manufacture of Minoan metal vessels: theory and practice

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    This study aims to establish the equipment and methods used to make hammered metal vessels in Crete during the Bronze Age. It combines archaeological research with metalsmithing practice. The most substantial studies to date have been largely typological. Some have examined the equipment and processes used, but usually without fully taking into account the metalsmithing techniques involved in vessel manufacture. An understanding of the equipment required and the manner in which it is used provides a new perspective on the Minoan craft and its practitioners. The initial stages of the study involved investigating Minoan vessel types and characteristics, and studying excavation reports on Bronze Age metallurgical sites in Crete as well as publications on the metallurgy of Minoan Crete and other Bronze Age cultures. The second stage was the detailed examination of a number of Minoan vessels in collections in Crete and the UK. The final stage was to replicate tools and equipment found at Minoan metallurgical sites and to test their viability for making Minoan metal-vessel forms. The processes involved annealing, the application of different hammering methods, riveting and polishing techniques. These reconstructed processes led to the creation of two small bowls, a hydria made from separate sections and a one-handled basin. The results of this research and the replication of equipment and techniques made it possible to reconstruct the processes used to make these vessels. Several other discoveries were made which have broader implications. Firstly, the reconstructive process revealed some of the physical aspects of the craft which would have affected the working practices of Minoan smiths and the roles of individuals within a workshop. Secondly, the study showed that simple tools found at many Minoan metallurgical sites are very effective for creating these vessels. Furthermore, the results suggest that metalsmithing may have occurred at more locations than are currently recognised as metallurgical sites. Lastly, it was discovered that both the forms and the often large sizes of Minoan vessels and, by extension, many Mycenaean vessels were determined by the types of tools that the smiths used. This has implications for how we might interpret these vessels within the broader context of the metal-vessel traditions of other contemporary cultures. -- provided by Candidate.v. 1. Text -- v. 2. Figure

    Decentralization and Health: Case Studies of Kenya, Pakistan, and the Philippines

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    Decentralization, defined by the World Bank (2001) as, “the transfer of authority and responsibility for public functions from the central government to intermediate and local governments or quasi-­‐independent government organizations and/or the private sector,” is a movement that has gained much traction in recent history. For many countries undergoing decentralization, a major driver has been a desire to increase the role and participation of local governments in the decision-­‐making space. In doing this, it is hoped to create governance structures that are more accountable and responsive to the people. For health, decentralization has been touted as a potential way to improve responsiveness to local needs, improve service delivery, and improve equitability. In light of these goals, many countries as part of their political decentralization have also opted to decentralize healthcare.https://jdc.jefferson.edu/cwicposters/1020/thumbnail.jp

    Speech and language therapy versus placebo or no intervention for speech problems in Parkinson's disease

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    Parkinson's disease patients commonly suffer from speech and vocal problems including dysarthric speech, reduced loudness and loss of articulation. These symptoms increase in frequency and intensity with progression of the disease). Speech and language therapy (SLT) aims to improve the intelligibility of speech with behavioural treatment techniques or instrumental aids

    Impact of breast cancer subtypes on 3-year survival among adolescent and young adult women.

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    IntroductionYoung women have poorer survival after breast cancer than do older women. It is unclear whether this survival difference relates to the unique distribution of hormone receptor (HR) and human epidermal growth factor receptor 2 (HER2)-defined molecular breast cancer subtypes among adolescent and young adult (AYA) women aged 15 to 39 years. The purpose of our study was to examine associations between breast cancer subtypes and short-term survival in AYA women, as well as to determine whether the distinct molecular subtype distribution among AYA women explains the unfavorable overall breast cancer survival statistics reported for AYA women compared with older women.MethodsData for 5,331 AYA breast cancers diagnosed between 2005 and 2009 were obtained from the California Cancer Registry. Survival by subtype (triple-negative; HR+/HER2-; HR+/HER2+; HR-/HER2+) and age-group (AYA versus 40- to 64-year-olds) was analyzed with Cox proportional hazards regression with follow-up through 2010.ResultsWith up to 6 years of follow-up and a mean survival time of 3.1 years (SD = 1.5 years), AYA women diagnosed with HR-/HER + and triple-negative breast cancer experienced a 1.6-fold and 2.7-fold increased risk of death, respectively, from all causes (HR-/HER + hazard ratio: 1.55; 95% confidence interval (CI): 1.10 to 2.18; triple-negative HR: 2.75; 95% CI, 2.06 to 3.66) and breast cancer (HR-/HER + hazard ratio: 1.63; 95% CI, 1.12 to 2.36; triple-negative hazard ratio: 2.71; 95% CI, 1.98 to 3.71) than AYA women with HR+/HER2- breast cancer. AYA women who resided in lower socioeconomic status neighborhoods, had public health insurance, and were of Black, compared with White, race/ethnicity experienced worse survival. This race/ethnicity association was attenuated somewhat after adjusting for breast cancer subtypes (hazard ratio, 1.33; 95% CI, 0.98 to 1.82). AYA women had similar all-cause and breast cancer-specific short-term survival as older women for all breast cancer subtypes and across all stages of disease.ConclusionsAmong AYA women with breast cancer, short-term survival varied by breast cancer subtypes, with the distribution of breast cancer subtypes explaining some of the poorer survival observed among Black, compared with White, AYA women. Future studies should consider whether distribution of breast cancer subtypes and other factors, including differential receipt of treatment regimens, influences long-term survival in young compared with older women

    Population attributable risk of breast cancer in white women associated with immediately modifiable risk factors

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    BACKGROUND: Estrogen/progestin replacement therapy (EPRT), alcohol consumption, physical activity, and breast-feeding duration differ from other factors associated with breast cancer in being immediately modifiable by the individual, thereby representing attractive targets for future breast cancer prevention efforts. To justify such efforts, it is vital to quantify the potential population-level impacts on breast cancer considering population variations in behavior prevalence, risk estimate, and baseline incidence. METHODS: For each of these four factors, we calculated population attributable risk percents (PARs) using population-based survey (2001) and cancer registry data (1998–2002) for 41 subpopulations of white, non-Hispanic California women aged 40–79 years, and ranges of relative risk (RR) estimates from the literature. RESULTS: Using a single RR estimate, subpopulation PARs ranged from 2.5% to 5.6% for hormone use, from 0.0% to 6.1% for recent consumption of >= 2 alcoholic drinks daily, and 4.6% to 11.0% for physical inactivity. Using a range of RR estimates, PARs were 2–11% for EPRT use, 1–20% for alcohol consumption and 2–15% for physical inactivity. Subpopulation data were unavailable for breastfeeding, but PARs using published RR estimates ranged from 2% to 11% for lifetime breastfeeding >= 31 months. Thus, of 13,019 breast cancers diagnosed annually in California, as many as 1,432 attributable to EPRT use, 2,604 attributable to alcohol consumption, 1,953 attributable to physical inactivity, and 1,432 attributable to never breastfeeding might be avoidable. CONCLUSION: The relatively feasible lifestyle changes of discontinuing EPRT use, reducing alcohol consumption, increasing physical activity, and lengthening breastfeeding duration could lower population breast cancer incidence substantially

    Role of IL-33 and ST2 signalling pathway in multiple sclerosis: expression by oligodendrocytes and inhibition of myelination in central nervous system

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    Recent research findings have provided convincing evidence indicating a role for Interleukin-33 (IL-33) signalling pathway in a number of central nervous system (CNS) diseases including multiple sclerosis (MS) and Alzheimer’s disease. However, the exact function of IL-33 molecule within the CNS under normal and pathological conditions is currently unknown. In this study, we have mapped cellular expression of IL-33 and its receptor ST2 by immunohistochemistry in the brain tissues of MS patients and appropriate controls; and investigated the functional significance of these findings in vitro using a myelinating culture system. Our results demonstrate that IL-33 is expressed by neurons, astrocytes and microglia as well as oligodendrocytes, while ST2 is expressed in the lesions by oligodendrocytes and within and around axons. Furthermore, the expression levels and patterns of IL-33 and ST2 in the lesions of acute and chronic MS patient brain samples are enhanced compared with the healthy brain tissues. Finally, our data using rat myelinating co-cultures suggest that IL-33 may play an important role in MS development by inhibiting CNS myelination

    The Well Now course:a service evaluation of a health gain approach to weight management

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    Abstract Background The Well Now health and weight course teaches body respect and health gain for all. The course validates peoples’ lived experiences and knowledge through group activities and discussion with the aim of helping people to better understand their food and body stories. Well Now explores different ways of knowing, including the use and limits of body signals, like energy levels, hunger, taste and emotions and helps people keep food and behaviours in perspective by drawing attention to other factors that impact on health and wellbeing. This study undertook a service evaluation of the Well Now course to understand its acceptability for participants and its impact on diet quality, food preoccupation, physical activity and mental wellbeing. Methods This service evaluation combined quantitative pre- and post-course measures with telephone interviews with previous attendees. Paired t-tests were used to determine if there were statistically significant differences in the intended outcomes. Semi-structured qualitative telephone interviews were undertaken with previous attendees 6–12 months after attendance to understand how participants experienced the Well Now course. Results Significant improvements were demonstrated in diet quality, food preoccupation, physical activity and mental wellbeing outcomes. Medium effect sizes are demonstrated for mental wellbeing and diet quality, with smaller effect sizes shown for physical activity and food preoccupation. The weight and Body Mass Index (BMI) of attendees remained stable in this timeframe. The qualitative data corroborates and extends elements of the quantitative outcomes and highlights areas of the course that may benefit from further development and improvement. The findings further indicate that the Well Now approach is largely acceptable for attendees. Conclusions Well Now’s non-judgemental holistic approach facilitates change for those who complete the course, and for those who do not. This health gain approach upholds non-maleficence and beneficence, and this is demonstrated with this service evaluation for both completers and partial completers

    Targeting the Gut Microbiota in Chagas Disease: What Do We Know so Far?

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    Chagas disease (CD) is a tropical and still neglected disease caused by Trypanosoma cruzi that affects >8 million of people worldwide. Although limited, emerging data suggest that gut microbiota dysfunction may be a new mechanism underlying CD pathogenesis. T. cruzi infection leads to changes in the gut microbiota composition of vector insects, mice, and humans. Alterations in insect and mice microbiota due to T. cruzi have been associated with a decreased immune response against the parasite, influencing the establishment and progression of infection. Further, changes in the gut microbiota are linked with inflammatory and neuropsychiatric disorders, comorbid conditions in CD. Therefore, this review article critically analyses the current data on CD and the gut microbiota of insects, mice, and humans and discusses its importance for CD pathogenesis. An enhanced understanding of host microbiota will be critical for the development of alternative therapeutic approaches to target CD, such as gut microbiota-directed interventions

    Lee Silverman voice treatment versus standard NHS speech and language therapy versus control in Parkinson's disease (PD COMM pilot):study protocol for a randomized controlled trial

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    Background: Parkinson’s disease is a common movement disorder affecting approximately 127,000 people in the UK, with an estimated two thirds having speech-related problems. Currently there is no preferred approach to speech and language therapy within the NHS and there is little evidence for the effectiveness of standard NHS therapy or Lee Silverman voice treatment. This trial aims to investigate the feasibility and acceptability of randomizing people with Parkinson’s disease-related speech or voice problems to Lee Silverman voice treatment or standard speech and language therapy compared to a no-intervention control. Methods/Design: The PD COMM pilot is a three arm, assessor-blinded, randomized controlled trial. Randomization will be computer-generated with participants randomized at a ratio of 1:1:1. Participants randomized to intervention arms will be immediately referred to the appropriate speech and language therapist. The target population are patients with a confirmed diagnosis of idiopathic Parkinson’s disease who have problems with their speech or voice. The Lee Silverman voice treatment intervention group will receive the standard regime of 16 sessions between 50 and 60 minutes in length over four weeks, with extra home practice. The standard speech and language therapy intervention group will receive a dose determined by patients’ individual needs, but not exceeding eight weeks of treatment. The control group will receive standard care with no speech and language therapy input for at least six months post-randomization. Outcomes will be assessed at baseline (pre-randomization) and post- randomization at three, six, and 12 months. The outcome measures include patient-reported voice measures, quality of life, resource use, and assessor-rated speech recordings. The recruitment aim is at least 60 participants over 21 months from 11 sites, equating to at least 20 participants in each arm of the trial. This trial is ongoing and recruitment commenced in May 2012. Discussion: This study will provide information on the feasibility and acceptability of randomizing participants to different speech and language therapies or control/deferred treatment. The findings relating to recruitment, treatment compliance, outcome measures, and effect size will inform a future phase III randomized controlled trial
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