Venturing Past Uranium: Synthesis of a Np(IV) Polyoxomolybdate-Alkoxide Sandwich Complex.

The synthesis of a Np(IV) polyoxomolybdate-alkoxide sandwich complex, (TBA)[Np{MoO(OMe)NO}] (TBA = tetrabutylammonium), is reported. This compound represents a rare example of a neptunium polyoxometalate cluster isolated outside of water, allowing for characterization of its electrochemical properties in nonaqueous solvents. Complexation of An(IV) cations fine-tunes the redox properties of the cluster, with the observed four reversible reductive events varying slightly both in potential and peak separation depending on the actinide present.

Access, Interest, and Barriers to Incorporation of Birth Doula Care in the United States.

Doula care improves maternal care, yet barriers exist to incorporating doula care. The purpose of this study was to evaluate interest and barriers to doula care. Overall, 508 women, 26-35 years of age (54.

Occupational Therapy Assessments of Cortical or Cerebral Visual Impairment: A Systematic Review.

Importance: Cortical or cerebral visual impairment (CVI), a leading cause of visual dysfunction in children across the globe, can result in delayed development of fine and gross motor skills, functional mobility, and socialization, which affects all areas of occupation. No assessments are recommended for occupational therapy practitioners working with children with CVI.

Objective: To appraise the measurement properties and clinical utility of CVI assessments appropriate for use by occupational therapy practitioners.

Individual fascicles of the ankle lateral ligaments and the lateral fibulotalocalcaneal ligament complex can be identified on 3D volumetric MRI.

Purpose: Lateral ligament ankle sprains are common and the anatomy on imaging studies is vital for accurate diagnosis. The lateral fibulotalocalcaneal ligament (LFTCL) complex consists of the inferior fascicle of the anterior talofibular ligament (ATFL) which is connected by arciform fibres with the calcaneofibular ligament (CFL). The superior fascicle of ATFL is an independent structure that should be assessed individually.

Proximal adductor avulsions are rarely isolated but usually involve injury to the PLAC and pectineus: descriptive MRI findings in 145 athletes.

Purpose: The purpose of the study is to review the MRI findings in a cohort of athletes who sustained acute traumatic avulsions of the adductor longus fibrocartilaginous entheses, and to investigate related injuries namely the pyramidalis-anterior pubic ligament-adductor longus complex (PLAC). Associated muscle and soft tissue injuries were also assessed.

Methods: The MRIs were reviewed for a partial or complete avulsion of the adductor longus fibrocartilage, as well as continuity or separation of the adductor longus from the pyramidalis.

Rupture of the peroneus quartus tendon in a professional rugby player.

The peroneus quartus is one of a variety of described accessory peroneal muscles, most commonly an incidental finding on MRI or ultrasound of the ankle. We present the only described case in the literature of a peroneus quartus tendon rupture in a professional rugby player as well as the MRI findings.

Steric influence of salicylaldehyde-based Schiff base ligands on the formation of trans-[Re(PR)(Schiff base)] complexes.

Complexes of the type trans-[Re(PR)(Schiff base)] (R = ethyl and/or phenyl) 2-7 were prepared by the reaction of (nBuN)[ReOCl] with Hsalen or Hsalibn followed by addition of a tertiary phosphine. The trans-[Re(PR)(salen)] complexes 2-4 were stable in solution, whereas the trans-[Re(PR)(salibn)] complexes 6-7 were observed to convert to their corresponding cis-[ReO(PR)(salibn)] products through a process involving ligand dissociation, metal oxidation, and Schiff base ligand rearrangement. The conversion of the trans-[Re(PR)(salibn)] complexes is likely driven by steric interactions between the bulky backbone gem-dimethyl groups of the salibn ligand and the phosphine ligands.

Diagnosis: History, Physical Examination, Imaging, and Arthroscopy: Proceedings of the International Consensus Meeting on Cartilage Repair of the Ankle.

Background: The evidence supporting best practice guidelines in the field of cartilage repair of the ankle are based on both low quality and low levels of evidence. Therefore, an international consensus group of experts was convened to collaboratively advance toward consensus opinions based on the best available evidence on key topics within cartilage repair of the ankle. The purpose of this article is to report the consensus statements on "Diagnosis: History, Physical Examination, Imaging, and Arthroscopy" developed at the 2017 International Consensus Meeting on Cartilage Repair of the Ankle.

Longitudinal Study of Changes in Occupational Therapy Students' Perspectives on Frames of Reference.

We explored students' views of the value of frames of reference (FoR) as they progressed through the didactic portion of an occupational therapy program. Thirty-four occupational therapy students were provided with a definition of FoR and asked to provide overall thoughts and impressions about FoR and their value 4 times over a period of 15 mo. Data were analyzed using phenomenological traditions, including open coding and analysis of themes.

Longitudinal Study of Occupational Therapy Students' Beliefs About Knowledge and Knowing.

Research has demonstrated the importance of beliefs about knowledge and knowing, or epistemic and ontological cognition (EOC), to learning and achievement; however, little research has examined occupational therapy students' EOC or determined whether occupational therapy programs promote its development. This study examined changes in EOC over 18 mo of didactic coursework in an occupational therapy program. Thirty-one students completed the Epistemic Beliefs Inventory at the beginning, middle, and end of 18 mo of didactic coursework.

Sensory processing disorder in children ages birth-3 years born prematurely: a systematic review.

This systematic review of multidisciplinary literature synthesizes evidence of the prevalence and patterns of sensory processing disorder (SPD) in children ages birth-3 yr born preterm. Forty-five articles including physiological, behavioral, temperament, and SPD research met the inclusion criteria and provided 295 findings related to SPD-130 (44%) positive (evidence of SPD) and 165 (56%) negative (no evidence of SPD). The majority of findings related to sensory modulation disorder (SMD; 43% positive).

Epistemic and ontological cognition of entering and postdidactic occupational therapy students.

Beliefs about knowledge and knowing, also called epistemic and ontological cognition (EOC), are associated with many aspects of learning and achievement; no published studies have described the EOC of occupational therapy students. This study compares and contrasts occupational therapy students' EOC at entry and on completion of didactic coursework. Twenty-one incoming and 33 postdidactic students completed the Epistemic Beliefs Inventory and the modified Four-Quadrant Scale and provided explanations for their self-ratings.

Teaching ill-structured problem solving using occupational therapy practice epistemology.

ABSTRACT Epistemic and ontological cognition (EOC) have to do with an individual's beliefs about knowledge and knowing. Research has shown that EOC have an influence on learning and achievement. EOC may be discipline-specific with a profession being defined by its practice epistemology.

Models of epistemic and ontological cognition: a new perspective of occupational therapy education.

Epistemic and ontological cognition (EOC) involve beliefs about knowledge and knowing. These include beliefs about the certainty and complexity of knowledge and the means of justifying knowledge, for example, through authority figures or personal experience. Research has shown that these beliefs can influence learning and achievement, and that they may be specific to a particular domain.

Revision of metal-on-metal hip arthroplasty in a tertiary center: a prospective study of 39 hips with between 1 and 4 years of follow-up.

Background And Purpose: Operative findings during revision of metal-on-metal hip arthroplasty (MOMHA) vary widely and can involve massive soft tissue and bone disruption. As a result, planning of theater time and resources is difficult, surgery is challenging, and outcomes are often poor. We describe our experience with revision of MOMHA and provide recommendations for management.

Influence of task and tool characteristics on scissor skills in typical adults.

To clarify expectations for mature cutting skills and investigate the influences of cutting task and scissor type, we videotaped 60 typical adults cutting three shapes with two different types of scissors. The videotapes were reviewed, and 38 aspects of grasp and cutting motions were rated. Percentages of participants who used a particular grip or cutting motion for each shape with each scissor type were reported and compared.

Imaging of muscle injury in the elite athlete.

Injuries to muscle in the elite athlete are common and may be responsible for prolonged periods of loss of competitive activity. The implications for the athlete and his/her coach and team may be catastrophic if the injury occurs at a critical time in the athlete's diary. Imaging now plays a crucial role in diagnosis, prognostication and management of athletes with muscle injuries.

Pseudotumors in association with well-functioning metal-on-metal hip prostheses: a case-control study using three-dimensional computed tomography and magnetic resonance imaging.

Introduction: Many papers have been published recently on the subject of pseudotumors surrounding metal-on-metal hip resurfacing and replacement prostheses. These pseudotumors are sterile, inflammatory lesions within the periprosthetic tissues and have been variously termed masses, cysts, bursae, collections, or aseptic lymphocyte-dominated vasculitis-associated lesions (ALVAL). The prevalence of pseudotumors in patients with a well-functioning metal-on-metal hip prosthesis is not well known.

Isolated ischaemic contracture of medial head of gastrocnemius.

A 47-year-old woman presented with a disabling fixed flexion deformity of the knee and an equinus deformity of the ankle following treatment in a cast for a minor flexion deformity following a tibial plateau fracture. Two years later, the cause was identified as an isolated ischaemic contracture involving the medial head of gastrocnemius. She made a good recovery following extensive corrective surgery and rehabilitation.

Radiology and management of multiligament injuries of the knee.

Multiligament injury of the knee, which may include joint dislocation, is a severe injury that can devastate knee function. It usually results in rupture of three of the four major stabilizing ligaments of the knee, but occasionally only two of the ligaments are torn. Evaluation and management is made more complex due to associated articular and meniscal cartilage injury, bony fractures, and neurovascular injury.

Magnetic resonance imaging findings in painful metal-on-metal hips: a prospective study.

Metal artifact reduction sequence magnetic resonance imaging findings are reported in a prospective series of 31 patients with unexplained painful metal-on-metal (MOM) hips. The abnormalities identified were fluid collection (20 patients), solid mass (2 patients), moderate to severe muscle atrophy (23 patients), and muscle edema (8 patients). In conclusion, soft tissue lesions and muscle atrophy appear to be prevalent in unexplained painful MOM hips.