Method for milling and drilling glass

A process for machining glass by placing a rotating carbide working surface under minimum pressure against an area of glass to be worked is described. Concurrently the region between the working surface and the area of glass is wet with a lubricant consisting essentially of a petroleum carrier, a complex mixture of esters and a complex mixture of naturally occurring aromatic oils

The Ethnobotanical Uses of the Aromatic Oils from Two Indian Endemic Plant Species of the Family Lamiaceae, \u3cem\u3ePogostemon travancoricus\u3c/em\u3e Bedd., and \u3cem\u3eOrthosiphon comosus\u3c/em\u3e Wight ex Benth.

The present paper highlights the use of the aromatic oils of two endemic Indian plant species, Pogostemon travancoricus and Orthosiphon comosus, in the treatment of back pain by the Kanis community of Karaiyar region, Kalakad Mundanthurai–Tiger Reserve Forest, South India

Daylight Collecting of Catocala (Lepidoptera: Nocturidae)

Excerpt: Sugaring and attraction to artificial light have long been favorite methods of collecting adults of the genus Catocala, and both have been very successful. Each of the many collectors who uses the English method of applying bait to the trunks of trees has his own preferred mixture. Usually molasses is the base, and fragrance is the measure. Feed molasses is widely used in this country, augmented by various combinations of beer, rum, aromatic oils and decaying fruits. Temperature, humidity, wind and amount of moonlight are all well-known factors affecting the success of bait, whether applied according to the old method or used in the modern variant of bait-traps. The advent of ultra-violet and mercury-vapor light has been a boon to students of this genus. According to the present low level of evidence, certain species would seem to have a preference for either bait or light. Experienced.lepidopterists insist that some species are not attracted to one or the other, but the phenomenon has not at all been carefully studied

Variations in antimalarial components of Artemisia annua Linn from three regions of Uganda

Introduction: Artemisia annua plant from the family Asteracea is a powerful antimalarial plant  introduced to Uganda around 2003. In addition to the artemisinin component, the plant also contains  flavonoids which work in synergy to artemisinin against malaria parasites. The plant also contains  aromatic oils which repel mosquitoes. In this paper we report the variations in antimalarial components of A. annua samples from the regions cultivating it in Uganda.Methods: Artemisia annua samples were obtained from three regions that cultivated the plant at the time of this study. The samples were brought to laboratory, authenticated and processed. The levels of artemisinin, total flavonoids and aromatic components were quantified using high performance thin layer chromatography, ultra violet spectrophotometry and gas chromatography respectively.Results: Artemisinin and total flavonoids levels were higher in samples obtained from high land areas (western and south western region) compared to that obtained from lowland regions (central) i.e 0.8% Vs 0.4% and 2.6% Vs 1.5% respectively. The aromatic oils (mosquito repellent components) were similar with camphor component being highest and levels ranging from 75.4% to 79.0%.Conclusion: Our findings show that the active components in Artemisia annua cultivated and used in the  Uganda vary with geographical regions and this calls for standardisation by source.Key words: Variations, Antimalarial components, Artemisia annua, Ugand

Infestation levels of Varroa destructor in local honey bees of Jordan

To determine Varroa mite infestation levels in Jordan, a survey covering 180 colonies of two bee types (Apis m. syriaca and Apis m. syriaca hybrids) from six locations of 4 climatic zones was conducted during August, 8 month after the last treatment. Sampled colonies had 8-10 frames covered with bees and 3-4 brood frames. Levels of infestation were determined on both adult worker bees and in sealed worker brood cells. Two-way ANOVA showed no significant differences due to bee type with average adult bee infestation of 10.9 % and 13.1 % on hybrid and local bee types, respectively. Average infestation levels in sealed brood worker cells were 37.6 % and 32.5 % in hybrid and local bee types, respectively. Differences in infestation levels on adult bees were significant due to location and ranged between 6.9 - 18.6 % in Daba’a (Desert climate) and Jerash (Dry Mediterranean), respectively. In sealed worker brood cells infestation levels ranged between 15.7 - 84.7 % in Baqa (Dry Mediterranean) and Jerash, respectively. This indicates clearly that the usual scheduled Varroa control practice by a single chemical treatment in autumn could be insufficient. Therefore, to prevent damages or even losses of colonies, including diagnosis of infestation rates as part of integrated Varroa management is highly recommended

Possible Roles for Essential Oils in Chemoprevention and Suppression of Cancer

Cancer represents one of the costliest and most prevalent diseases to afflict the modern world, even though treatments have evolved steadily over the years and produce an increasingly positive outlook with each development and innovation. Essential oils have been used medicinally- among other purposes- for thousands of years and have begun to attract attention for possible applications to the field of oncology. Numerous investigations and publications have shed light on the possible chemopreventative (antioxidant and antimetastatic) uses of these oils, alongside cancer suppressive (apoptosis-inducing and cytotoxic) abilities that they may possess. With the high annual incidence of cancer and the ever-rising price of treatment, clinical application of essential oils may transform into a viable and effective compliment to current treatments

Petroleum ether extraction of tars

Thesis (B.S.)--University of Illinois, 1917.Typescript.Includes bibliographical references

Evaluation of antibacterial activity of Pisidium guajava and Gongronema Latifolium

Pisidium guajava and Gongronema latifolium are local plants used traditionally in south-eastern Nigeria to treat ailments such as cough, loss of appetite, malaria and stomach disorders. In this study, aqueous and ethanolic leaf extracts of P. guajava and G. latifolium were screened for antibacterial activity against two clinically isolated organisms of the gastrointestinal tract, Escherichia coli and Staphylococcus aureus. Results obtained show that leaf extracts of both plants possess significant antibacterial activities against the two isolates. Ethanolic extracts showed more inhibitory effect compared to the aqueous extracts. Extracts of P. guajava exhibited higher inhibitory effect than that of G. latifolium. The diameter of zones of inhibition by the leaf extracts of P. guajava was 8 - 16 mm and 14 - 21 mm respectively for the aqueous and ethanolic extracts. The minimum inhibitory concentrations (MICs) were 5.0 and 0.625 mg ml-1 respectively for the aqueous and ethanolic extracts of P. guajava. For the extracts of G. latifolium, the diameter of zones of inhibition was between 6 and 10 mm while MICs were 10.0 and 2.5 mg ml-1 respectively for the aqueous and ethanolic extract

The smells of eternity: Aromatic oils and resins in the Phoenician mortuary record

This chapter surveys and analyses the aromatic substances associated with burial and the preservation of the dead in the Iron Age Phoenician Levant (c. 1100–300 bce), as part of an exploration of the lost smellscapes of the ancient world. First, Phoenician vocabulary related to smelling and pungent substances is outlined and investigated. Then, a review of coastal Levantine archaeological and textual evidence, along with comparanda from the wider Mediterranean world, is used to establish the range of smells and substances that would have been associated with mortuary practice at this time. While oleo-resins in use in the burial record overlap to some degree with those used in everyday life—in perfumes, religious practice, and other uses of scented oils and incense—the unique constellations of aromatics used to inter the dead highlight the importance of these deeply mnemonic sensory elements in our understanding of the Iron Age past.ECU Open Access Publishing Support Fun

Modified Halloysite Nanotubes: Nanoarchitectures for Enhancing the Capture of Oils from Vapor and Liquid Phases

We prepared hybrid halloysite nanotubes (HNT/sodium alkanoates) in which the inner cavity of the nanoclay was selectively modified. Physicochemical studies evidenced the interactions between HNT and sodium alkanoates, ruled out clay exfoliation, quantified the amount of the loaded substance, and showed an increase of the total net negative charge, allowing us to obtain rather stable aqueous nanoclay dispersions. These dispersions were exploited as inorganic micelles to capture hydrocarbon and aromatic oils in the vapor and liquid states and were revealed to be nonfoaming but very efficient in encapsulating oils. Here, we have fabricated biocompatibile and low-cost inorganic micelles that can be exploited for industrial applications on a large scale