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The term dementia refers to a group of progressive neurodegenerative diseases in which patients experience a range of cognitive symptoms, with memory impairment the most common. These patients are also at risk of experiencing epileptic seizures. Transient Epileptic Amnesia (TEA) is a syndrome of temporal lobe epilepsy in which the principal manifestation of a seizure is a brief episode of amnesia during which other mental functions are predominantly or entirely preserved. Patients with TEA describe persistent memory impairments which are distinct from their seizures. In this thesis two studies are described which look in detail at each of these conditions separately. The demographic features, seizure presentations and cognitive profiles of these two groups are then compared in order to improve our understanding of these under-recognised conditions, and to assist clinicians tasked with their diagnosis.It has been known for over a century that patients with Alzheimer’s disease (AD) can experience epileptic seizures. However, the degree to which the risk of epilepsy is increased in these patients remains unclear. Seizures were long thought of as a feature of advanced disease in these patients, only occurring several years after the onset of symptoms. However, more recent evidence has suggested that seizures can occur at an early stage of the disease, maybe even prior to the onset of memory symptoms. This suggests that seizures in this population may be a cause of decline, rather than purely a marker of severe disease. The aim of the work reported in this thesis is to investigate a cohort of patients with dementia and Mild Cognitive Impairment (MCI), recruited from a regional memory clinic in order to determine the prevalence, clinical features and prognosis of epileptic seizures in patients with MCI and all forms of dementia. A UK-based, prospective study of this nature has not been conducted before.144 patients with MCI and dementia were recruited from the Exeter memory clinic. Diagnoses were confirmed using established diagnostic criteria, together with a group of 80 age- and gender- matched healthy control subjects. Participants underwent a clinical interview and cognitive testing, in the company of a reliable informant, who also completed further questionnaires. Cognitive testing and informant questionnaires were repeated following a 12-month interval.A prevalence of epilepsy of between 12.5 and 25.7% is identified in this population. Patients in whom a clinical suspicion of epilepsy was suspected were no different to those in whom there was no clinical evidence of epilepsy in terms of age of onset or cognitive performance at their initial study assessment. However epilepsy patients scored higher on the informant questionnaires, suggesting a greater impairment and increased care requirements. At the time of their 12-month assessment, the patients in whom epilepsy had been identified performed significantly worse on cognitive testing, suggesting that the presence of seizures was associated with a more rapid decline in this group.The concept of TEA has been established for over 25 years. These patients describe amnesic episodes which are brief and frequently occur upon waking.

This unique book demonstrates the current status, and future potential, of millimetre wavelength (MMW) spectrometry as a means of quantitative analysis of gaseous mixtures. After outlining the spectroscopic theory required, the authors then go on to discuss the components of an MMW cavity spectrometer, concentrating on compact, automatic, low-cost instruments. Other topics covered include solid state MMW sources with both cryogenically cooled and room temperature detectors. Post-detector signal processing, smoothing, filtering and spectral profile fitting are also discussed. The book concludes with a look at the future of the technique, in areas such as millimetre wave-over-fibre technology. Quantitative Millimetre Wavelength Spectrometry will be welcomed by practitioners in both industry and academia.

Gastrointestinal (GI) parasitic infection is the main health constraint for small ruminant production, causing loss of weight and/or death. Red Maasai sheep have adapted to a tropical environment where extreme parasite exposure is a constant, especially with highly pathogenic Haemonchus contortus. This breed has been reported to be resistant to gastrointestinal parasite infection, hence it is considered an invaluable resource to study associations between host genetics and resistance. The aim of this study was to identify polymorphisms strongly associated with host resistance in a double backcross population derived from Red Maasai and Dorper sheep using a SNP-based GWAS analysis. The animals that were genotyped represented the most resistant and susceptible individuals based on the tails of phenotypic distribution (10% each) for average faecal egg counts (AVFEC). AVFEC, packed cell volume (AVPCV), and live weight (AVLWT) were adjusted for fixed effects and co-variables, and an association analysis was run using EMMAX. Revised significance levels were calculated using 100,000 permutation tests. The top five significant SNP markers with - log10 p-values >3.794 were observed on five different chromosomes for AVFEC, and BLUPPf90/PostGSf90 results confirmed EMMAX significant regions for this trait. One of these regions included a cluster of significant SNP on chromosome (Chr) 6 not in linkage disequilibrium to each other. This genomic location contains annotated genes involved in cytokine signalling, haemostasis and mucus biosynthesis. Only one association detected on Chr 7 was significant for both AVPCV and AVLWT. The results generated here reveal candidate immune variants for genes involved in differential response to infection and provide additional SNP marker information that has potential to aid selection of resistance to gastrointestinal parasites in sheep of a similar genetic background to the double backcross population.

In introducing [Bill Henderson], Drake McFeely of Norton (which has distributed Pushcart's titles for 20 years) called him \"a great choice-the most independent of publishers, who celebrates books and writing from every perspective except that of the banker,\" Henderson returned the compliment: \"Norton has been a wonderful distributor and hasn't made a dime from me in 20 years.\"

This is all chronicled in great but never tedious detail in his third book, A Matter of Opinion, just out from Farrar, Straus & Giroux, in which the most surprising element is the quirky humor with which it is told. [Victor Navasky] naturally makes all the right points about the importance, especially in these polarized days, of the journal of opinion, and he's endlessly fascinating about the many maneuvers with wealthy and sometimes eccentric backers, from Arthur Carter to Paul Newman.