argyrophilic staining of nucleolar organizer regions (agnor) has been considered to be useful in the diagnosis and prognostic evaluation of different cutaneous tumors. in order to evaluate the role of the agnor technique in discriminating aggressive from non-aggressive basal cell carcinoma (bcc), paraffin-embedded histologic sections from 30 cases of aggressive bcc (bcc2) and 30 cases of non-ag...

  Objective(s): Appendicitis remains the most common condition in the pediatric population requiring emergency abdominal operation. Management of acute simple appendicitis is well described but controversy remains as to the optimal treatment of complicated appendicitis. Common complications of acute appendicitis include: localized peritonitis and abscess formation, flegmon and general perito...

Abstract This paper deals with the research of a new silicate-based repair mortar modified selected secondary raw materials. The aim this work is to develop chemically resistant material suitable for use in an extremely aggressive environment sewers. monitored parameters include key physical-mechanical characteristics, resistance sulphate ions and attack biogenic sulfuric acid. Chemical was tes...

From psychological and sociological standpoints, aggression is regarded as intentional behavior aimed at inflicting pain and manifested by hostility and attacking behaviors. In contrast, biologists define aggression as behavior associated with attack or escalation toward attack, omitting any stipulation about intentions and goals. Certain animal signals are strongly associated with escalation t...

background worldwide, suicide ranks among the three leading causes of death among those aged 15-44 years. an estimated 800000 people die by committing suicide annually. objectives to better understand the association between aggressive suicidal attempt and non-aggressive suicidal attempt in patients with suicide attempt in the emergency department. patients and methods a cross-sectional observa...

Cooperative behaviors are common among social insects such as bees, wasps, ants, and termites, but they have not been reported from insect species that use aggressive mimicry to manipulate and exploit prey or hosts. Here we show that larval aggregations of the blister beetle Meloe franciscanus, which parasitize nests of the solitary bee Habropoda pallida, cooperate to exploit the sexual communi...

Background: Internal corrosion and the formation of scale in water distribution pipes are the most important problems for an urban water distribution system. Physical, chemical, or biological factors can lead to these two processes. Internal corrosion and scale formation can impact health, economy, and aesthetics. This study assessed the physicochemical quality parameters and evaluated the pote...