NEW CONTRIBUTIONS TO THE KNOWLEDGE OF THE MORPHOLOGY, ECOLOGY AND DAMAGE CAUSED BY MINING MOTH CHESTNUT (CAMERARIA ORHIDELLA DESCHKA & DIMIC) IN THE HUSI - VASLUI AREAL CONDITIONS FROM EASTERN OF ROMANIA

During the research were made observations about morphology, ecology and damage the chestnut trees in the Husi-Vaslui area by chestnut leaves mining moth (Cameraria orhidella Deschka & Dimic).The harmful specie is a Lepidoptera that belongs to the Gracillariidae family, who presented a low degree of resistance to unkind ecological conditions, but still developed three generations per year which caused heavy damages in the crow of the chestnut trees by consuming the palisade tissue, producing mines on the upper face of the leaves

Pulsed Laser-Deposited TiO2-based Films: Synthesis, Electronic Structure and Photocatalytic Activity

Active under visible light, photocatalysts based on doped titania were obtained via pulsed laser deposition (PLD) method. To find out the crystalline structure, optical properties, and electronic structure, the following techniques such as X-ray diffraction, electronic spectroscopy, electrical conductivity measurements, and X-ray photoelectron spectroscopy (XPS) are used. Photocatalytic activity is monitored by applying the photoreduction of dichromate ions under UV and visible light. The influence of zirconium ions and its content and synthesis conditions on the efficiency of nitrogen incorporation into titania structure that, in turn, determines the electronic structure and photocatalytic ability of the semiconductive materials are discussed. A substitutional nitrogen (Ti–N) rather than an interstitial one (Ti–O–N) is mainly responsible for the observed photoactivity. It is pointed that substitutional nitrogen is responsible for bandgap narrowing or formation of intragap localized states within semiconductor bandgap. The bandgap energy values are sharply decreased, while the relative intensity of substitutional nitrogen XPS peaks is increased. Pulsed laser synthesis of TiO2 films in N2/CH4 atmosphere not only leads to nitrogen incorporation but also to the formation of defects including oxygen vacancies and Ti3+ states which are all contributing to light absorption. An appropriate ratio of gas mixture, optimum zirconia content, suitable pressure, and temperature during synthesis was found for the synthesis of highly active semiconductive films. The highest photocatalytic conversion yields are obtained for nitrogen-doped 10% ZrO2/TiO2 synthesized in N2:CH4 = 5:1 at 100 Pa and at 450°C under both UV and visible light

Contribuţii la studiul biologiei moliei miniere a frunzelor de castan Cameraria Ohridella Deschka & Dimič în zona Huşi, judeţul Vaslui

Through this study bring the new contributions to the knowledge of the biology chestnut leaf mining moth. These observations were made in terms of Husi, Vaslui area and consisted of systematic recording of data on the conditions of the studied area,appearance and flying insect oviposition, completing the larval stage, the transformation in pupa stage and re-start every generation, observations what we've done using pheromone traps, "Atra-CAM" and using the Agroexpert program we calculated the sum of effective temperatures required at each stage of development. Order to better establish during each stage in the field I chose trees that have below branches, so as to be able to reach them and chose 1 10 whole leaves that we meant by a thread, and on them we follow all stages from egg to pupa and adult. We watched practically the egg stage, larva and pupa to butterfly leaving the mine by the same leaves an folioles

Neonatal Brain Abscess with <i>Serratia marcescens</i> after Intrauterine Infection: A Case Report

Brain abscesses are a possible complication of bacterial sepsis or central nervous system infection but are uncommon in the neonatal period. Gram-negative organisms often cause them, but Serratia marcescens is an unusual cause of sepsis and meningitis in this age group. This pathogen is opportunistic and frequently responsible for nosocomial infections. Despite the existing antibiotics and modern radiological tools, mortality and morbidity remain significant in this group of patients. We report an unusual unilocular brain abscess in a preterm neonate caused by Serratia marcescens. The infection had an intrauterine onset. The pregnancy was achieved through assisted human reproduction techniques. It was a high-risk pregnancy, with pregnancy-induced hypertension, imminent abortion, and required prolonged hospitalization of the pregnant woman with multiple vaginal examinations. The infant was treated with multiple antibiotic cures and percutaneous drainage of the brain abscess associated with local antibiotic treatment. Despite treatment, evolution was unfavorable, complicated by fungal sepsis (Candida parapsilosis) and multiple organ dysfunction syndrome