Evaluation of Zn Uptake by Helianthus annuus, in a Tropical Climate, Using Different Phytoremediation Strategies.

Phytoremediation is a rapidly expanding process due to its technical and economic viability. The objective of this work was to evaluate the phytoremediation potential of Helianthus annuus in three cultivation media: artificially contaminated Catalão soil, hydroponics and roadside soil. In hydroponics, ZnCl doses 0.

Disposable electrochemical sensor: Highly sensitive determination of nitrofurazone antibiotic in environmental samples and pharmaceutical formulations.

The study presents the successful development of a new electrochemical sensor with low cost and disposability for application in nitrofurazone detection in environmental and pharmaceutical samples. The sensors were fabricated using materials obtained from local storage and conductive carbon ink. The modification of the screen-printed electrodes with the hybrid nanomaterial based on silver nanoparticles, carbon quantum dots, and carbon nanotubes showed synergistic contributions in the nitrofurazone electrooxidation, as observed in the wide linear range (0.

An electrochemical sensor-based carbon black associated with a modified mixed oxide (SiO/TiO/SbO) for direct determination of thiamethoxam in raw honey and water samples.

The study aimed to develop an electrochemical sensor based on glassy carbon, mixed oxide (SiO/TiO/SbO), and carbon black. The material was synthesized, characterized, and used to determine thiamethoxam in raw honey and water. The morphologic structure and electrochemical performance of the sensor was characterized by scanning electron microscopy and cyclic voltammetry.

Catalytic Transfer Hydrogenation and Acid Reactions of Furfural and 5-(Hydroxymethyl)furfural over Hf-TUD-1 Type Catalysts.

Heterogeneous catalysis, which has served well the petrochemical industry, may valuably contribute towards a bio-based economy by sustainably enabling selective reactions to renewable chemicals. Carbohydrate-containing matter may be obtained from various widespread sources and selectively converted to furanic platform chemicals: furfural (Fur) and 5-(hydroxymethyl)furfural (Hmf). Valuable bioproducts may be obtained from these aldehydes via catalytic transfer hydrogenation (CTH) using alcohols as H-donors under relatively moderate reaction conditions.

Metal accumulation in roadside soils of Rio de Janeiro, Brazil: impact of traffic volume, road age, and urbanization level.

Traffic-related metal emissions have become a global concern due to their deposition in roadside soils and potential hazardous effects. This study evaluates metal levels in soils adjoining four highways of Rio de Janeiro (Linha Vermelha, Via Dutra, BR-465, and Avenida Brasil), chosen for their diverse traffic volumes, age, and urban/rural settings. In addition to soil physicochemical properties, 11 elements (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr, V, and Zn) were assessed on samples collected at different distances from the road (1, 3, 5, 10, 15 m) and soil depths (0-15 and 15-30 cm).

Ethanol production in Brazil: a bridge between science and industry.

In the last 40 years, several scientific and technological advances in microbiology of the fermentation have greatly contributed to evolution of the ethanol industry in Brazil. These contributions have increased our view and comprehension about fermentations in the first and, more recently, second-generation ethanol. Nowadays, new technologies are available to produce ethanol from sugarcane, corn and other feedstocks, reducing the off-season period.

Brain caspase-3 and intestinal FABP responses in preterm and term rats submitted to birth asphyxia.

Neonatal asphyxia can cause irreversible injury of multiple organs resulting in hypoxic-ischemic encephalopathy and necrotizing enterocolitis (NEC). This injury is dependent on time, severity, and gestational age, once the preterm babies need ventilator support. Our aim was to assess the different brain and intestinal effects of ischemia and reperfusion in neonate rats after birth anoxia and mechanical ventilation.

Orbital volume augmentation using expandable hydrogel implants in acquired anophthalmia and phthisis bulbi.

The purpose of this study is to describe our experience using expandable spherical hydrogel implants and injectable hydrogel pellets for orbital volume augmentation in cases of post-enucleation socket syndrome after acquired anophthalmia or phthisis bulbi. We retrospectively reviewed the clinical records of all adult patients who received an expandable hydrogel implant for orbital volume loss following enucleation or phthisis bulbi at the Emory Eye Center between 2004 and January 2007 and the Yale Eye Center between 2009 and 2011. The study included 9 women and 5 men with a mean age of 51.

Bilateral corneal perforations and autoproptosis as self-induced manifestations of ocular Munchausen's syndrome.

Purpose: To report a patient with bilateral corneal perforations and autoproptosis in a case of ocular Munchausen's syndrome.

Design: Case report.

Participant: A 26-year-old white male referred to the oculoplastics service with one month history of decreased vision bilaterally and painful right eye.

Giant myofibroma of the orbit in an adult male.

A 47-year-old male with history of schizophrenia developed painful proptosis and vision loss. Computed Tomography revealed a bone-destructive mass with encroachment on the orbit and compression of the right eye. Superolateral orbitotomy and biopsy revealed a lesion composed of a mixture of spindled and epithelioid cells without significant cytologic atypia or mitotic rate.

Coats-like response in linear en coup de sabre scleroderma.

Purpose: To describe a Coats-like response and central nervous system vasculitis and its successful management in a patient presenting with en coup de sabre scleroderma.

Methods: Retrospective interventional case report. Chart review.

Effects of common topical antiglaucoma medications on the ocular surface, eyelids and periorbital tissue.

Glaucoma affects millions of people around the world. With the baby boom generation aging, the number of people affected by primary open-angle glaucoma in the US is expected to reach 3.3 million by 2020, and about half may not know they have the disease.

Mucoepidermoid carcinoma of the lacrimal sac after dacryocystectomy for squamous papilloma.

A mass that recurred after dacryocystectomy for benign squamous papilloma of the lacrimal sac was diagnosed as a high-grade mucoepidermoid carcinoma in a 53-year-old man on histopathology. Local excision to the orbital periosteum was performed and gave a margin free of invasion. Neither local recurrence nor systemic metastasis was found 3 years after local excision.

Congenital anophthalmia: a review of dealing with volume.

Background: Anophthalmia in childhood whether congenital or acquired is not just a question of cosmesis. Loss of an eye can effect the maturation of the soft tissues and bony structure surrounding the affected orbit. Therefore, a comprehensive approach including medical and surgical interventions is required to rehabilitate a child early in life.

Multiple pilomatrixoma in Turner syndrome.

Pilomatrixoma is typically an isolated benign tumor of the hair follicle matrix with very low recurrence rates. The authors report a case of multiple pilomatrixoma in a patient with Turner syndrome. The patient was a 13-year-old girl with a history, to date, of 10 separate facial lesions, manifesting over the course of 7 years, and confirmed by histopathology as pilomatrixoma.

Oculocerebrocutaneous syndrome: a case report.

There are many congenital ocular malformations associated with systemic findings. In cases such as oculocerebrocutaneous syndrome, the severity of systemic findings makes diagnosis particularly important. This case report presents a case of this uncommon syndrome and demonstrates the common findings.

Carcinosarcoma of the orbit: report of two cases and review of the literature.

Objective: To report the clinicopathologic features of 2 patients with carcinosarcoma of the orbit.

Design: Case reports.

Participants: Two patients with orbital carcinosarcoma were identified.