Arthroscopic lunate fossa resection arthroplasty for Kienböck's disease.

The aim of this study was to assess the outcome of arthroscopic lunate fossa resection arthroplasty for patients with Kienböck's disease, previously managed without operation, and a non-functional lunate fossa. For adult patients with relapse or exacerbation of pain from Kienböck's disease 2 years after the onset of symptoms, arthroscopic removal of lunate fossa cartilage was performed to reach bleeding bone, if the cartilage in the lunate fossa was non-functional and the scaphoid fossa was intact. Sixteen patients (mean age 35 years; range 27-56) were included.

A Spectrum of Ultrasound and MR Imaging of Fetal Gastrointestinal Abnormalities: Part 2 Anorectal Malformation, Liver, and Abdominal Wall Anomalies.

Ultrasound (US) and magnetic resonance imaging (MRI) are two modalities for diagnosing fetal gastrointestinal (GI) anomalies. Ultrasound (US) is the modality of choice. MRI can be used as a complementary method.

Outcomes of Arthroscopic Lunate Core Decompression Versus Radial Osteotomy in Treatment of Kienböck Disease.

Purpose: The purpose of the study was to evaluate the functional and radiographic outcomes of arthroscopic lunate decompression versus radial osteotomy in the treatment of Kienböck disease (KD).

Methods: In a prospective cohort design, we enrolled 82 patients with KD with Lichtman stages I to IIIb. Participants assigned themselves to groups by choosing either arthroscopic lunate core decompression and synovectomy (group A; n = 54) or radial osteotomy (group B; n = 28).

Larger-scale ocean-atmospheric patterns drive synergistic variability and world-wide volatility of wheat yields.

Diagnosing potential predictability of global crop yields in the near term is of utmost importance for ensuring food supply and preventing socio-economic consequences. Previous studies suggest that a substantial proportion of global wheat yield variability depends on local climate and larger-scale ocean-atmospheric patterns. The science is however at its infancy to address whether synergistic variability and volatility (major departure from the normal) of multi-national crop yields can be potentially predicted by larger-scale climate drivers.

Data of variability and joint variability of global crop yields and their association with climate.

We present the output data of Robust Principal Component Analysis (RPCA) applied to global crop yield variability of maize, rice, sorghum and soybean (MRSS) as presented in the publication "Climate drives variability and joint variability of global crop yields" (Najafi et al., 2019). Global maps of the correlation between all the principal components (PCs) acquired from the low rank matrix (L) of MRSS and Palmer Drought Severity Index (PDSI), air temperature anomalies (ATa) and sea surface temperature anomalies (SSTa) are provided in this article.

Climate drives variability and joint variability of global crop yields.

In this study, long-term national-based yields of maize, rice, sorghum and soybean (MRSS) from 1961 to 2013 are decomposed using Robust Principal Component Analysis (RPCA). After removing outliers, the first three principal components (PC) of the persistent yield anomalies are scrutinized to assess their association with climate and to identify co-varying countries and crops. Sea surface temperature anomalies (SSTa), atmospheric and oceanic indices, air temperature anomalies (ATa) and Palmer Drought Severity Index (PDSI) are used to study the association between the PCs and climate.

Prevalence and Associated Risk Factors of Hyperglycemia and Diabetes Mellitus Among HIV Positive Patients in Tehran, Iran.

Background: The introduction of Antiretroviral Therapy (ART) has resulted in the emergence of some metabolic complications including hyperglycemia and diabetes mellitus among HIV positive patients. The aim of this study was to investigate the prevalence of hyperglycemia, diabetes mellitus and their associated risk factors in HIV positive patients.

Methods: This cross-sectional study was conducted on HIV positive patients who visited Voluntary Counseling and Testing (VCT) center of Imam Khomeini Hospital, Tehran, Iran (2004-2013).