202 research outputs found
Imaging in gynecological disease: clinical and ultrasound characteristics of intramural pregnancy
OBJECTIVE: To describe the clinical and sonographic characteristics of intramural pregnancies, the available management options and treatment outcomes. METHODS: This was a retrospective single-center study of consecutive patients diagnosed by ultrasound with an intramural pregnancy, between 2008 and 2022. An intramural pregnancy was diagnosed on ultrasound examination when a pregnancy located within the confines of the uterus, extended beyond the decidual-myometrial junction to involve the myometrium above the level of the internal cervical os. Clinical, ultrasound, relevant surgical and histological information and outcomes were retrieved from each patient's record. RESULTS: Eighteen patients diagnosed with an intramural pregnancy were identified. Median age was 35 (range, 28-43) years. Median gestational age was 8+1 (range, 5+5 - 12+0 ) weeks. Vaginal bleeding with or without abdominal pain was the most common presenting symptom, which was recorded in 8/18 (44%) of patients. 9/18 (50%) of patients had partial and 9/18 (50%) complete intramural pregnancies. Embryonic cardiac activity was present in 8/18 (44%) of pregnancies. The majority of pregnancies [10/18 (56%)] were initially managed conservatively, including expectant management [8/18 (44%)], local injection of methotrexate [1/18 (6%)] and embryocide [1/18 (6%)]. Conservative management was successful in 9/10 (90%) of women with a median hCG resolution time of 71 (range, 32-143) days and median pregnancy resolution time of 63 (range, 45-214) days. One patient with an ongoing live pregnancy had an emergency hysterectomy for a major vaginal bleed at 20 weeks' gestation. No other patients who were managed conservatively experienced any significant complications. The remaining 8/18 (44%) patients had primary surgical treatment, which was mainly in the form of transcervical suction curettage [7/8 (88%)] whist the remaining patient presented with uterine rupture and had an emergency laparoscopy and repair. CONCLUSIONS: We describe the ultrasound features for partial and complete intramural pregnancies with demonstration of key diagnostic features. Our series suggest that when intramural pregnancies are diagnosed before 12 weeks' of gestational age they can be managed with either conservative or surgical treatment, with most women being able to preserve their future reproductive function. This article is protected by copyright. All rights reserved
The Racialized Surveillant Assemblage: Islam and the fear of Terrorism
Increasingly intense, multifaceted and integrated forms of surveillance are a central
feature of Western national security attempts to counter the violence of ‘Islamic
terrorism’. However, there has been a lack of research examining contemporary regimes
of surveillance as profoundly racialized. This study examines how counter-terrorism
efforts are underpinned by ill-conceived accounts of radicalisation that pre-emptively
construct Muslim-migrants as a threat to national security, thereby justifying practices
of mass surveillance that further propagate racist discourses of uncertainty and risk. We
advance an analysis of a racialized surveillant assemblage, that is generative of mutable,
algorithmically determined profiles of the Muslim-as-terrorist. Such a regime of mass
surveillance effectively puts all Muslims under suspicion. We highlight that,
paradoxically, mass data-mining operations stifle, rather than aid, the identification of
actual terrorist threats. This conditions a paranoid surveillant racism, through which
Muslim populations become modulated as an unknowable threat of death and
destruction
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Post-racial politics, pre-emption and in/security
Copyright © The Author(s) 2023. Militarized policing strategies aiming to identify and nullify risks to national security in Western nations have become central to the biopolitical regulation of racialized populations. While the disproportionate impact of pre-emptive counter-terrorism policing on ‘Muslim’ populations has been highlighted, the post-racial techno-politics of predictive policing as a mode of securitization remain overlooked. This article argues that the ‘war on terror’ is governed by a state of crisis that conditions a pre-emptive biopolitics of containment against (unknown) future threats. We examine how predictive policing is progressively dependent on the computational production of risk to avert impending terror. As such, extant forms of counter-terrorism algorithmic profiling are shown to mobilize post-racial calculative logics that renew racial oppression while appearing race-neutral. These predictive systems and pre-emptive actions, while seeking to securitize the future by identifying and nullifying suspects, evasively remake race as risky, thus rendering security indistinguishable from insecurity. Hence, we assert that state securitization is haunted by a profound sense of racialized dread over terrorism, for it can only resort to containing, rather than resolving, the perceived threat of race.The author(s) received no financial support for the research, authorship and/or publication of this article
Sertoli Cell Adenylyl Cyclase Is Stimulated by a Factor Associated with Germ Cells
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74745/1/j.1749-6632.1984.tb38341.x.pd
Post-racial politics, pre-emption and in/security
Militarized policing strategies aiming to identify and nullify risks to national security in Western nations have become central to the biopolitical regulation of racialized populations. While the disproportionate impact of pre-emptive counter-terrorism policing on ‘Muslim’ populations has been highlighted, the post-racial techno-politics of predictive policing as a mode of securitization remain overlooked. This article argues that the ‘war on terror’ is governed by a state of crisis that conditions a pre-emptive biopolitics of containment against (unknown) future threats. We examine how predictive policing is progressively dependent on the computational production of risk to avert impending terror. As such, extant forms of counter-terrorism algorithmic profiling are shown to mobilize post-racial calculative logics that renew racial oppression while appearing race-neutral. These predictive systems and pre-emptive actions, while seeking to securitize the future by identifying and nullifying suspects, evasively remake race as risky, thus rendering security indistinguishable from insecurity. Hence, we assert that state securitization is haunted by a profound sense of racialized dread over terrorism, for it can only resort to containing, rather than resolving, the perceived threat of race
Calmodulin activation of rat lung adenylate cyclase is independent of the cytoplasmic factors modulating the enzyme
Validation of the Mind Excessively Wandering Scale and the Relationship of Mind Wandering to Impairment in Adult ADHD.
OBJECTIVE: This study investigates excessive mind wandering (MW) in adult ADHD using a new scale: the Mind Excessively Wandering Scale (MEWS). METHOD: Data from two studies of adult ADHD was used in assessing the psychometric properties of the MEWS. Case-control differences in MW, the association with ADHD symptoms, and the contribution to functional impairment were investigated. RESULTS: The MEWS functioned well as a brief measure of excessive MW in adult ADHD, showing good internal consistency (α > .9), and high sensitivity (.9) and specificity (.9) for the ADHD diagnosis, comparable with that of existing ADHD symptom rating scales. Elevated levels of MW were found in adults with ADHD, which contributed to impairment independently of core ADHD symptom dimensions. CONCLUSION: Findings suggest excessive MW is a common co-occurring feature of adult ADHD that has specific implications for the functional impairments experienced. The MEWS has potential utility as a screening tool in clinical practice to assist diagnostic assessment
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Streaming Emergency Department Patients to Primary Care Services: Developing a Consensus in North East London
Report of local research on emergency care decision
Protein interactions in Xenopus germ plasm RNP particles
Hermes is an RNA-binding protein that we have previously reported to be found in the ribonucleoprotein (RNP) particles of Xenopus germ plasm, where it is associated with various RNAs, including that encoding the germ line determinant Nanos1. To further define the composition of these RNPs, we performed a screen for Hermes-binding partners using the yeast two-hybrid system. We have identified and validated four proteins that interact with Hermes in germ plasm: two isoforms of Xvelo1 (a homologue of zebrafish Bucky ball) and Rbm24b and Rbm42b, both RNA-binding proteins containing the RRM motif. GFP-Xvelo fusion proteins and their endogenous counterparts, identified with antisera, were found to localize with Hermes in the germ plasm particles of large oocytes and eggs. Only the larger Xvelo isoform was naturally found in the Balbiani body of previtellogenic oocytes. Bimolecular fluorescence complementation (BiFC) experiments confirmed that Hermes and the Xvelo variants interact in germ plasm, as do Rbm24b and 42b. Depletion of the shorter Xvelo variant with antisense oligonucleotides caused a decrease in the size of germ plasm aggregates and loosening of associated mitochondria from these structures. This suggests that the short Xvelo variant, or less likely its RNA, has a role in organizing and maintaining the integrity of germ plasm in Xenopus oocytes. While GFP fusion proteins for Rbm24b and 42b did not localize into germ plasm as specifically as Hermes or Xvelo, BiFC analysis indicated that both interact with Hermes in germ plasm RNPs. They are very stable in the face of RNA depletion, but additive effects of combinations of antisense oligos suggest they may have a role in germ plasm structure and may influence the ability of Hermes protein to effectively enter RNP particles
Crystal field analysis of Pm (4^{3+}^{f5}) and lattice location studies of Nd and Pm in w-AlN
We report a detailed crystal field analysis of Pm3+ and Sm3+ as well as lattice location studies of 147Pm and 147Nd in 2H-aluminum nitride (w-AlN). The isotopes of mass 147 were produced by nuclear fission and implanted at an energy of 60 keV. The decay chain of interest in this work is 147Nd→147Pm→147Sm (stable). Lattice location studies applying the emission channeling technique were carried out using the β− particles and conversion electrons emitted in the radioactive decay of 147Nd→147Pm. The samples were investigated as implanted, and also they were investigated after annealing to temperatures of 873 K as well as 1373 K. The main fraction of about 60% of both 147Pm as well as 147Nd atoms was located on substitutional Al sites in the AlN lattice; the remainder of the ions were located randomly within the AlN lattice. Following radioactive decay of 147Nd, the cathodoluminescence spectra of Pm3+ and Sm3+ were obtained between 500 nm and 1050 nm at sample temperatures between 12 K and 300 K. High-resolution emission spectra, representing intra-4f electron transitions, were analyzed to establish the crystal-field splitting of the energy levels of Sm3+ (4f5) and Pm3+ (4f4) in cationic sites having C3v symmetry in the AlN lattice. Using crystal-field splitting models, we obtained a rms deviation of 6 cm−1 between 31 calculated-to-experimental energy (Stark) levels for Sm3+ in AlN. The results are similar to those reported for Sm3+ implanted into GaN. Using a set of crystal-field splitting parameters Bnm, for Pm3+ derived from the present Sm3+ analysis, we calculated the splitting for the 5F1, 5I4, and 5I5 multiplet manifolds in Pm3+ and obtained good agreement between the calculated and the experimental Stark levels. Temperature-dependent lifetime measurements are also reported for the emitting levels 4F5∕2 (Sm3+) and 5F1 (Pm3+)
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