Understanding how advocacy services support care-experienced young people to participate in decision-making

This document sets out the protocol for a realist-informed exploratory study of advocacy services for children and young people provided as part of the children’s service within a large Local Authority in England. Participation in decision-making has been found to contribute to increased self-confidence, self-efficacy, and self-worth for care-experienced children and young people. There is some consensus on the need for advocacy services for young people to enable them to participate in decisions about their lives, and legislation and guidance which underlines this. Despite this, there is little research that explores how advocacy can best lead to positive outcomes for care-experienced children and young people. The service which is the site of this study aims to empower children and young people to participate in decisions affecting their lives, with the advocacy service providing support and representation for these young people independent of the primary social work team. This study will explore the scope, operation, and perceived impact of this service to develop a theoretically informed, collaborative framework to guide the delivery of advocacy services for care-experienced children and young people

Mechanisms for Support: A Realist Evaluation of Peer Parental Advocacy in England

International research shows that although parents perceive the child protection system to be stigmatising and authoritarian, peer parental advocacy (PPA) programmes have a positive impact on improving complex relationships between parents and professionals. PPA programmes enable parents with lived experience of child protection processes to support other parents to navigate the system. As an emerging area of policy interest, research investigating the role of PPA in empowering parents to participate meaningfully in decision-making is crucial to developing collaborative approaches within child protection social work. This realist-informed study considered how a newly implemented PPA programme supported parents in two English Local Authorities. Our findings highlight the unique role peer advocates can play as a resource to influence decision-making, power relations and working relationships between professionals and parents. This article presents our final programme theory, which identifies four key mechanisms that support perceived effectiveness in PPA implementation: active engagement, effective communication, facilitating trust and adequate support for advocates. These findings highlight how PPA programmes in these Local Authorities were valued and begin to build a picture of how further advocacy programmes can be explored throughout the UK

“They seem to listen more now I have an advocate”: a study into the implementation of parental advocacy in Wales

Purpose: Parental advocacy is an emerging area of research and policy interest in Wales and across the UK. Although there is little research in the UK context to date, international research has indicated that parental advocacy can improve the relationship between parent and professional in the field of child protection social work. This paper aims to ascertain how the implementation of a parental advocacy programme supports parents to play a meaningful role in decision-making when children’s services are working with them and their families. Design/methodology/approach: This study used interviews, surveys and focus groups to obtain qualitative data from 18 parents, seven parent advocates, two advocacy managers and four social workers, to explore the potential impact of parental advocacy on decision-making. The study identified challenges in implementing parental advocacy, particularly relating to awareness of the service. Participants also discussed experiences of the child protection system and how parents are supported by advocates. Findings: Despite challenges surrounding implementation, initial findings were encouraging, and generated examples of how parental advocacy services have helped parents to understand children’s services and develop relationships of trust with social care professionals. In doing so, this study identified potential mechanisms that may be useful to support future service delivery. Originality/value: This paper and research is novel as it explores parental advocacy within the Welsh context. Although there has been research conducted into parental advocacy, this has largely come from the USA. This research comes from the evaluation of an innovative and promising parental advocacy scheme in Wales

First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data

Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matched filtering, which uses the position and rotational parameters obtained from electromagnetic observations, can be carried out. Matched filtering maximizes the signalto- noise (SNR) ratio, but a large sensitivity loss is expected in case of even a very small mismatch between the assumed and the true signal parameters. For this reason, narrow-band analysis methods have been developed, allowing a fully coherent search for gravitational waves from known pulsars over a fraction of a hertz and several spin-down values. In this paper we describe a narrow-band search of 11 pulsars using data from Advanced LIGO’s first observing run. Although we have found several initial outliers, further studies show no significant evidence for the presence of a gravitational wave signal. Finally, we have placed upper limits on the signal strain amplitude lower than the spin-down limit for 5 of the 11 targets over the bands searched; in the case of J1813-1749 the spin-down limit has been beaten for the first time. For an additional 3 targets, the median upper limit across the search bands is below the spin-down limit. This is the most sensitive narrow-band search for continuous gravitational waves carried out so far

High proportion of cactus species threatened with extinction

This is the author accepted manuscript. The final version is available from Nature Publishing Group via the DOI in this record.Consejo Nacional de Ciencia y Tecnologí

Multi-messenger observations of a binary neutron star merger

On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of ~1.7 s with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg2 at a luminosity distance of 40+8-8 Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 Mo. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at ~40 Mpc) less than 11 hours after the merger by the One- Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over ~10 days. Following early non-detections, X-ray and radio emission were discovered at the transient’s position ~9 and ~16 days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta

First measurement of the Hubble Constant from a Dark Standard Siren using the Dark Energy Survey Galaxies and the LIGO/Virgo Binary–Black-hole Merger GW170814

International audienceWe present a multi-messenger measurement of the Hubble constant H 0 using the binary–black-hole merger GW170814 as a standard siren, combined with a photometric redshift catalog from the Dark Energy Survey (DES). The luminosity distance is obtained from the gravitational wave signal detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO)/Virgo Collaboration (LVC) on 2017 August 14, and the redshift information is provided by the DES Year 3 data. Black hole mergers such as GW170814 are expected to lack bright electromagnetic emission to uniquely identify their host galaxies and build an object-by-object Hubble diagram. However, they are suitable for a statistical measurement, provided that a galaxy catalog of adequate depth and redshift completion is available. Here we present the first Hubble parameter measurement using a black hole merger. Our analysis results in , which is consistent with both SN Ia and cosmic microwave background measurements of the Hubble constant. The quoted 68% credible region comprises 60% of the uniform prior range [20, 140] km s−1 Mpc−1, and it depends on the assumed prior range. If we take a broader prior of [10, 220] km s−1 Mpc−1, we find (57% of the prior range). Although a weak constraint on the Hubble constant from a single event is expected using the dark siren method, a multifold increase in the LVC event rate is anticipated in the coming years and combinations of many sirens will lead to improved constraints on H 0

A gravitational-wave standard siren measurement of the Hubble constant

On 17 August 2017, the Advanced LIGO 1 and Virgo 2 detectors observed the gravitational-wave event GW170817-a strong signal from the merger of a binary neutron-star system 3 . Less than two seconds after the merger, a γ-ray burst (GRB 170817A) was detected within a region of the sky consistent with the LIGO-Virgo-derived location of the gravitational-wave source 4-6 . This sky region was subsequently observed by optical astronomy facilities 7 , resulting in the identification 8-13 of an optical transient signal within about ten arcseconds of the galaxy NGC 4993. This detection of GW170817 in both gravitational waves and electromagnetic waves represents the first 'multi-messenger' astronomical observation. Such observations enable GW170817 to be used as a 'standard siren' 14-18 (meaning that the absolute distance to the source can be determined directly from the gravitational-wave measurements) to measure the Hubble constant. This quantity represents the local expansion rate of the Universe, sets the overall scale of the Universe and is of fundamental importance to cosmology. Here we report a measurement of the Hubble constant that combines the distance to the source inferred purely from the gravitational-wave signal with the recession velocity inferred from measurements of the redshift using the electromagnetic data. In contrast to previous measurements, ours does not require the use of a cosmic 'distance ladder' 19 : the gravitational-wave analysis can be used to estimate the luminosity distance out to cosmological scales directly, without the use of intermediate astronomical distance measurements. We determine the Hubble constant to be about 70 kilometres per second per megaparsec. This value is consistent with existing measurements 20,21 , while being completely independent of them. Additional standard siren measurements from future gravitationalwave sources will enable the Hubble constant to be constrained to high precision