Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses.

The compositional dependence and influence of relaxation state on the deformation behavior of a Pt-Pd-based bulk metallic glasses model system was investigated, where platinum is systematically replaced by topologically equivalent palladium atoms. The hardness and modulus increased with rising Pd content as well as by annealing below the glass transition temperature. Decreasing strain-rate sensitivity and increasing serration length are observed in nano indentation with increase in Pd content as well as thermal relaxation.

Correlation of Intraoperative Neurophysiological Parameters and Outcomes in Patients with Intramedullary Tumors.

Introduction: Intramedullary spinal cord tumors (IMSCT) account for about 2%-4% of all central nervous system tumors. Surgical resection is the main treatment step, but might cause damage to functional tissues. Intraoperative neuromonitoring (IONM) is an adopted measure to decrease surgical complications.

Endoscopic resection of sellar and suprasellar epidermoid cyst: report of two cases and review of literature.

Introduction: Epidermoid cysts (EC) are lesions developing from neuroectodermal epithelial cells. They represent 1-2% of all intracranial tumors and are usually found in cerebellopontine angle and parasellar regions. To the best of our knowledge, only 27 cases have been reported of EC in sellar and suprasellar region.

Effect of two lytic bacteriophages against multidrug-resistant and biofilm-forming Gallinarum from poultry.

1.  Gallinarum (SG) infections cause fowl typhoid, which leads to important economic losses. Multidrug resistance (MDR) and the capacity for bacteria to form biofilms could play an important role in the persistence of SG in poultry flocks resulting in intermittent disease outbreaks.

Lumbar disc herniation with contralateral radiculopathy: a systematic review on pathophysiology and surgical strategies.

Lumbar disc herniation (LDH) is a relatively common pathology usually presenting with unilateral radiculopathy ipsilateral to the disc herniation. Some patients can present with contralateral radicular symptoms. The objective of this article is to review the current literature on lumbar disc herniations with contralateral radiculopathy regarding its pathophysiology and surgical strategies.

Improvement of Hemichorea Following Surgical Resection of a Putaminal Cavernous Angioma: Case Report and Review of Literature.

Background: Hemichorea may point to a structural lesion in the contralateral basal ganglia with a large list of possible causes. Cavernous angioma may be rarely a possible cause for acute appearance of this movement disorder.

Case Description: We present a rare case of a 32-year-old female patient with hemichorea caused by a cavernoma (or cavernous angioma) in the contralateral insula and putamen with complete improvement of symptoms with surgical resection of the lesion.

Bulk metallic glass formation in the (Ti,Zr)-(Ni,Cu)-S system.

New bulk glass-forming alloy compositions, exceeding a critical casting thickness of 1 mm, are developed in the (quasi-ternary) (Ti,Zr)-(Ni,Cu)-S system. The ternary eutectic composition TiNiCu is stepwise modified through additions of S (0-8 at%) and Zr (0-22.5 at%) at the expense of Ni and Ti, respectively.

Radiologic Features of Spontaneous Regression of Vestibular Schwannomas.

Background: Vestibular schwannoma (VS) is the most common benign tumor originating in the cerebellopontine angle. In most cases, tumors tend to grow and deserve proper treatment. Sometimes they stabilize, and rarely they decrease in size spontaneously.

Hypothermia and the newborn's bath in the first hours of life.

Objective: to analyze the occurrence of hypothermia in neonates before and after bathing in the first hours of life.

Method: a cross-sectional study in which the axillary temperature of newborns before bathing, after bathing, 30 and 60 minutes after bathing was verified at an Obstetric Center. In the statistical analysis, the Chi-Square, Student's t and Mann-Whitney tests were used, with α = 0.

5-Aminolevulinic acid fluorescence-guided surgery for spinal cord melanoma metastasis: a technical note.

Background: According to our research, just few studies described 5-Aminolevulinic acid (5-ALA) use for spinal injuries resection. 5-ALA is known to be especially useful in certain spinal tumor entities such as meningiomas, ependymomas, hemangiopericytomas, and metastasis of central nervous system primary tumors. In contrast, 5-ALA has limited value in other histopathological tumoral entities, as neurinomas and carcinoma metastasis.

Salmonella Gallinarum field isolates and its relationship to vaccine strain SG9R.

1. The aim of the present study was to determine if the 9R-strain of the Salmonella Gallinarum live vaccine was responsible for having fowl typhoid outbreaks in chicken flocks from both chicken and turkey breeders as well as to verify the antimicrobial resistance of the isolates from the outbreaks. 2.

Alternative option for osteogenesis imperfecta and trigeminal neuralgia.

Osteogenesis imperfecta (OI) is a bone disorder that can lead to skull base deformities such as basilar invagination, which can cause compression of cranial nerves, including the trigeminal nerve. Trigeminal neuralgia in such cases remains a challenge, given distorted anatomy and deformities. We present an alternative option, consisting in cannulation of the foramen ovale and classical percutaneous treatment.

Study on the association of UGT1A9 gene c.98T>C polymorphism and mycophenolic acid plasma levels in renal transplant patients.

Mycophenolate mofetil (MMF) is a prodrug active only after its hydrolysis to mycophenolic acid (MPA). The UGT1A9 enzyme is of special interest since it is the main enzyme involved in the glucuronidation of MPA. Single nucleotide polymorphisms (SNPs) in the UGT1A9 gene may be responsible for individual differences in the pharmacokinetics of MMF.

Giant scalp arteriovenous malformation.

Arteriovenous malformations (AVMs) of the scalp are rare lesions. The clinical picture presents with complaints of increased scalp, scalp disfigurement, pain and neurological symptoms. Its origin can be congenital or traumatic.

Spontaneous intracranial epidural hematoma during rivaroxaban treatment.

According to our research, this is the first case described in the literature of spontaneous intracranial epidural hematoma secondary to the use of Xareltor. Spontaneous intracranial epidural hematomas are rarely described in the literature. They are associated with infectious diseases of the skull, coagulation disorders, vascular malformations of the dura mater and metastasis to the skull.

Dorsal Arachnoid Web and Scalpel Sign: A Diagnostic Imaging Entity.

Material And Methods: A case of 60-year-old woman with idiopathic syringomyelia and progressive myelopathy by dorsal arachnoid web is discussed. One focal indentation along the dorsal surface of the spinal cord at the T3 vertebral body level revealed the scalpel sign, a radiologic entity diagnostic of a dorsal thoracic arachnoid web.

Results: T2-T3 laminectomy for the resection of dorsal arachnoid band was performed.

Antibiotic prescriptions for suspected respiratory tract infection in primary care in South America.

Objectives: To describe and compare antibiotic prescribing patterns for primary care patients with respiratory tract infections (RTIs) in four South American countries.

Methods: This was a prospective observational study. General practitioners (GPs) from Argentina, Bolivia, Paraguay and Uruguay registered data about all consultations of patients with suspected RTIs in the winter of 2014 (June-August).

[Food insecurity and inadequate food intake among students of municipal schools, São Leopoldo, state of Rio Grande do Sul, Brazil].

This research involves a school-based cross sectional study to evaluate the association between food insecurity (FI) and inadequate food intake (IFI), among 782 children (mean age of 6.9±0.5) of the 1st year of primary school in the municipal schools of São Leopoldo in the state of Rio Grande do Sul.

Embolization of a giant hypervascularized choroid plexus papilloma with onyx by direct puncture: a case report.

Background: Choroid plexus papilloma is a rare intracranial neoplasm derived from choroid plexus epithelium accounting for less than 1 % of all brain tumors. These tumors are highly vascularized, and tumor resection is difficult, especially in small children, due to severe intraoperative bleeding. Preoperative embolization is helpful to reduce intraoperative bleeding, but it may not be possible in small children or if the tumor has no suitable feeding vessels for embolization.

Cross-cultural adaptation and clinical validation of the Neonatal Skin Condition Score to Brazilian Portuguese.

Objective: To describe the process of cross-cultural adaptation and clinical validation of the Neonatal Skin Condition Score.

Methods: This methodological cross-cultural adaptation study included five steps: initial translation, synthesis of the initial translation, back translation, review by an Committee of Specialists and testing of the pre-final version, and an observational cross-sectional study with analysis of the psychometric properties using the Adjusted Kappa, Intraclass Correlation Coefficient, and Bland-Altman Method statistical tests. A total of 38 professionals were randomly recruited to review the clarity of the adapted instrument, and 47 newborns hospitalized in the Neonatology Unit of the Clinical Hospital of Porto Alegre were selected by convenience for the clinical validation of the instrument.

Association between primary headaches and depression in young adults in southern Brazil.

Objective: To verify the association between depression and headache in young adults, as well as to identify the features of headache associated with depression and the influence of this mood disorder on headache-related disability.

Methods: A cross-sectional study with self-administered questionnaires about headache and depression was conducted at the Universidade de Caxias do Sul. Beck Depression Inventory (BDI) and Migraine Disability Assessment (MIDAS) were used to evaluate depressive symptoms and headache-related disability, respectively.

Depression Subscale of the Hospital Anxiety and Depression Scale applied preoperatively in spinal surgery.

Objective: To evaluate the accuracy of the Depression Subscale of Hospital Anxiety and Depression Scale (HADS-D) in spine surgery, comparing it to Beck Depression Inventory (BDI).

Methods: In a cross-sectional study, the HADS-D and the BDI were applied to patients undergoing spine surgery for lumbar (n=139) or cervical spondylosis (n=17). Spearman correlation tests for HADS-D and BDI were applied.