Feeding trials conducted on Felis serval and Canis mesomelas showed that the same prey item may appear in up to seven scats (mean=2.8, n=7). The basic assumption that prey remains of the same species in different scats represent different individuals is invalid. Therefore over-estimation of some prey species relative to others in the diet of carnivores studied can occur.
The response of red duikers to drive counts conducted on three consecutive days was monitored. The disturbance level to the duiker community of this counting method is low, an it is unlikely to have any long-term effects. The red duiker flees rather than hides from the counting line, thereby increasing its chances of being counted.
In the Humber estuary approximately 235 km of flood defences protect a tidal floodplain of about 90 000 ha, containing the homes of more than 300 000 people and assets valued at more than £7 billion including the conurbations of Hull, Grimsby, Cleethorpes, Immingham and Goole and extensive areas of highly productive farmland. With a projected expenditure of £500 million over 50 years, there was a need to propose a prioritised programme of works for the 50-year period and to develop proposals in sufficient detail to get approvals for the first five-year programme of works. This paper describes the phased approach that was adopted and the methodology used to establish the extent and timing of works needed. Following prioritisation of the works and preparation of a preliminary programme of works, more detailed assessment of the works identified in the first 15 years was undertaken, including environmental assessments and economic analysis. The paper concludes with a brief description of the works proposed in the first five years of the strategy period.
Facial electrical burn injuries are rare and complex. They require initial primary management followed by multi-staged secondary reconstruction to obtain satisfactory functional and aesthetic results.We present a 32years old male electrical technician with an indigenous company who sustained electrical burns to the maxillofacial region while fixing a faulty transformer. Initial resuscitation was done in a peripheral Hospital before referral to us. He had necrosis of the frontal and temporal soft and hard tissues bilaterally, loss of the upper eye lid bilaterally and loss of vision in the right eye. He had debridement of entire necrotic soft tissue and multi-staged saucerization and trephination of necrotic cranial bone was done over a period of 18 months to allow granulation tissue to form. Subsequently a split thickness skin graft was harvested from the right thigh and laid to cover the frontotemporal defect. The desire and determination of both the patient and surgical team to improve on appearance led to a fairly acceptable outcome notwithstanding the challenges of inadequate funds, poor facilities and equipment and limited experience in micro vascular free flaps. IntroductionHigh-voltage electrical burns represent a challenging surgical entity. Compared to conventional burns, these injuries are characterized by an increased morbidity and worse potential for rehabilitation [1]. Electrical bums are infrequent when compared with flame and scald burns [2]. It accounts for 1500 deaths per year and more than 4000 cases reported to the emergency unit in the United States [3]. These injuries also account for 2% to 3% of all admissions to hospital burn centers, and that number is slowly increasing. 4 Case reportA 32 years old male electrical technician with an indigenous company who sustained electrical burns to the face while on routine repair of a faulty transformer. Immediate resuscitation with intravenous fluid and antibiotics was done in a primary health centre close to the location of the accident. He presented to our clinic 10 days after the accident. At presentation he was stable, conscious, well oriented but in moderate pain. There was necrosis of soft tissues of the bridge of the nose, frontal, temporal regions and upper eye lids bilaterally. Ophthalmological examination revealed loss of vision in the right eye and exposure keratitis of the left eye. Soft tissue debridement was done under general anaesthesia after routine investigation which confirmed necrosis of frontal and temporal bones (Figures 1,2).Saucerization and trephination of frontal and temporal bones was done under intravenous sedation using a drill and a blunt bur to remove necrotic bone to induce formation of granulation tissue (Figures 3,4). Subsequently a split thickness skin graft was harvested from the right thigh to cover the defect. The Ophthalmologist covered the left viable eye with saline soaked gauge after application of chloramphenicol ointment and patient was adviced to get sunglasses to protect the eye [4][5][6] (Figures ...
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