Auswahl der wissenschaftlichen Literatur zum Thema „Common witch hazel“
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Zeitschriftenartikel zum Thema "Common witch hazel"
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Subramanian, A. P., A. A. John, M. V. Vellayappan, A. Balaji, S. K. Jaganathan, Eko Supriyanto und Mustafa Yusof. „Gallic acid: prospects and molecular mechanisms of its anticancer activity“. RSC Advances 5, Nr. 45 (2015): 35608–21. http://dx.doi.org/10.1039/c5ra02727f.
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Gallic acid (GA) is a phenolic acid found in many dietary substances. It is a natural compound found in gallnuts, sumac, witch-hazel, clove, tealeaves, oak bark, sundew and other plants. Edibles like blackberry, hot chocolate, common walnut and Indian gooseberry contain GA.
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Colantonio, Sophia, und Jason K. Rivers. „Botanicals With Dermatologic Properties Derived From First Nations Healing: Part 2—Plants and Algae“. Journal of Cutaneous Medicine and Surgery 21, Nr. 4 (19.12.2016): 299–307. http://dx.doi.org/10.1177/1203475416683390.
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Introduction: Plants and algae have played a central role in the treatment of skin conditions in both traditional First Nations healing and in modern dermatology. The objective of this study was to examine the evidence supporting the dermatological use of seaweed, witch hazel, bearberry, and mayapple. Methods: Four plants and algae used in traditional First Nations treatments of skin disease were selected based on expert recommendations. Several databases were searched to identify relevant citations without language restrictions. Results: Seaweed has potential clinical use in the treatment of acne and wrinkles and may be incorporated into biofunctional textiles. Witch hazel is an effective and well-tolerated treatment of inflammation and diaper dermatitis. Bearberry leaves contain arbutin, a skin-lightening agent that is an alternative for the treatment of hyperpigmentation. Mayapple contains podophyllotoxin, a treatment for condyloma accuminata, molluscum contagiosum, and recalcitrant palmoplantar warts. Discussion: Common plants and algae are replete with bioactive agents that may have beneficial effects on the skin. Further research will open the door to new and innovative products in the future. Limitations of this study include that the scope of our study is limited to 4 plants and algae, a small sample of the breadth of plants used by First Nations for dermatological treatments.
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Veronese, Federica, Elia Esposto, Chiara Airoldi, Nunzia Di Cristo, Pamela Paganini, Paola Savoia und Elisa Zavattaro. „A Randomized Controlled Prospective Cohort Study on the Efficacy of a Witch Hazel Extract Cream for the Eyelids and Eye Contour Area and a Cleansing Face Cream in Dermatitis of the Eyelids“. Cosmetics 11, Nr. 3 (22.05.2024): 83. http://dx.doi.org/10.3390/cosmetics11030083.
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Background: Eyelid dermatitis is a common, multifactorial, chronic, and/or relapsing condition with a considerable impact on life quality that represents a diagnostic and treatment challenge. Methods: We carried out a single-blind, controlled, randomized, parallel-group study to evaluate the efficacy of two dermo-cosmetics (cream for the eyelids and eye contour area and cleansing face cream) in which the key ingredient was witch hazel extract, compared to generic cream, in the treatment of patients affected by eyelid dermatitis. Enrolled subjects were treated and followed-up for 4 weeks; dermatological evaluation was objectively performed using the DLQI, OSDI, NRS–itch, and EDSI indicators. Results: The products tested proved to be more effective than the placebo in ameliorating the dermatitis in the treated patients, based on all considered dermatological scores. In the treatment arm, we observed a reduction in both DLQI score and in the indicators related to the extension of dermatitis, greater than that observed in the control arm. Conclusions: This comparative study demonstrates the role of dermo-cosmetic products tested not only as a support treatment, but also as a first-choice clinical approach.
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Taylor, Benton N., Angelica E. Patterson, Moyosore Ajayi, Rachel Arkebauer, Karen Bao, Natalie Bray, Robert M. Elliott et al. „Growth and physiology of a dominant understory shrub, Hamamelis virginiana, following canopy disturbance in a temperate hardwood forest“. Canadian Journal of Forest Research 47, Nr. 2 (Februar 2017): 193–202. http://dx.doi.org/10.1139/cjfr-2016-0208.
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As global climatic changes increase plant susceptibility to large-scale disturbances such as drought and pathogens, understory responses to these disturbances will become increasingly important to long-term forest dynamics. To better understand understory responses to canopy disturbance, we measured changes in the growth and physiology of the dominant understory shrub, American witch-hazel (Hamamelis virginiana L.), in response to girdling of canopy oaks in a temperate hardwood forest of the northeastern United States. Changes in the growth and physiology of H. virginiana may be important to the regeneration of northeastern temperate forests, as this common shrub largely shapes the microenvironment for seedlings on the forest floor where it occurs. Canopy disturbance by girdling resulted in significant increases in light and soil nitrogen availability. In response to these environmental changes, basal-area growth of H. virginiana increased by an average 334%. This growth increase corresponded to significant increases in foliar nitrogen, respiration, and leaf chlorophyll and carotenoid concentrations. These findings indicate improved environmental conditions and increased growth for this understory shrub following the loss of dominant canopy trees. This study suggests that following large-scale canopy disturbance, H. virginiana and shrubs like it may play an important role in competing for soil N and shading seedlings of regenerating canopy species.
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Dvorianchikov, V. V., M. V. Drozdova, S. V. Ryazantsev, Yu S. Preobrazhenskaya und S. S. Pavlova. „Alternative methods for controlling nasal obstruction in children“. Meditsinskiy sovet = Medical Council, Nr. 12 (19.09.2021): 124–29. http://dx.doi.org/10.21518/2079-701x-2021-12-124-129.
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Currently, rhinitis accompanied by nasal obstruction is one of the most common diseases in children and adolescents. Regardless of the cause of its occurrence - an infectious or non-infectious (allergic) process, each time there is a vascular (vasomotor) reaction. In children of preschool and primary school age, the most common is infectious rhinitis, which develops with viral and bacterial infections. The group of non-allergic rhinitis, which develops more often in adolescents, is united by the term idiopathic (vasomotor) rhinitis.Purpose of the study. Evaluation of the effectiveness of the use of a complex preparation containing calendula, witch hazel, esculus, menthol and zinc oxide in the treatment of vasomotor rhinitis in children.Materials and methods. The study included 40 patients of childhood and adolescence, of both sexes (23 girls and 17 boys) aged 6 to 14 years with an established diagnosis of vasomotor (idiopathic) rhinitis, without concomitant pathology, not registered with specialists, without constant admission The study drug was used to lubricate the mucous membrane of the nasal cavity or put turundas with ointment for 3-5 minutes 2-3 times a day. The course of treatment was 7-10 days. The effectiveness of treatment was assessed by the dynamics of clinical data and the severity of the subjective symptoms of the disease.Results. A comparisons of these scores for re-assessing the status of patients relative to the timing of the study drug use showed a uniform positive trend in terms of the clinical picture and subjective complaints of patients.Conclusions. The inclusion in the complex therapy of pediatric patients with idiopathic (vasomotor) rhinitis of the drug Fleming’s Ointment, or monotherapy with this agent, contributes to a rapid and pronounced weakening of the clinical manifestations of the disease, allowing you to quickly achieve positive treatment results in the form of relief of nasal obstruction, rhinorrhea, edema of the mucous membrane of the cavity nose, sneezing. There is a positive trend in the state of the mucous membrane itself.
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Shirazi, A. M., und M. V. Thierry. „(436) Comparative Cold Hardiness and Freezing Behavior of Leaves, Buds, and Flowers in Selected Woody Plants in Northern Latitudes“. HortScience 40, Nr. 4 (Juli 2005): 1077A—1077. http://dx.doi.org/10.21273/hortsci.40.4.1077a.
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It is not well known how cold-hardy new buds and emerging leaves or flowers are during spring. Extreme temperature fluctuations that sometimes bring early frost in spring (April–May) are very common in northern latitudes and cause severe damage to emerging leaves and flowers. Even though most woody plants can tolerate frost in spring, others show early tissue damage and can fully recover. There are some trees, e.g., Japanese maples (Acer palmatum) that when leaves are damaged due to spring frost, the results include severe dieback and eventual death. We tested new flowers and leaves of four crabapples: Malus ×micromalus, M. sargentii, `Mary Potter', and M. hupehensis, after budbreak for 3 years using electrical conductivity (EC) and differential thermal analysis (DTA) in spring: May 1997, Apr. 1998, and Apr. 2000, at The Morton Arboretum. Both flowers and leaves can tolerate from –6 to –12 °C and we observed higher ion leakage in leaves than flowers. The high temperature exotherm (HTE) of flowers were –8 to –10 °C in April. In a companion study, testing other species that had premature budbreak due to “near lethal” (sublethal) freezing stress in Jan. 2001, the following HTE were observed: Cornelian cherry (Cornus mas) flower (about –7.5 °C), Spindle trees leaves (about –6 °C), Judd's viburnum (Viburnum ×juddii) (about –8 °C), Brevipetala witch-hazel (Hamamelis mollis`Brevipetala') flower (about –5 °C), redbud (Cercis candensis) flower (about –9 °C), flowering quince (Chaenomeles ×superba) flower (–8 °C). Multiple LTE at –13, –18, –22, and –27 °C were observed for Judd's viburnum. This information could be useful for selection and breeding of woody plants.
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Chen, Shurui, Liang Xu, Yinxiao Zhang, Bing Chen, Xinfeng Wang, Xiaoye Zhang, Mei Zheng et al. „Direct observations of organic aerosols in common wintertime hazes in North China: insights into direct emissions from Chinese residential stoves“. Atmospheric Chemistry and Physics 17, Nr. 2 (27.01.2017): 1259–70. http://dx.doi.org/10.5194/acp-17-1259-2017.
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Abstract. Many studies have focused on the physicochemical properties of aerosol particles in unusually severe haze episodes in North China instead of the more frequent and less severe hazes. Consistent with this lack of attention, the morphology and mixing state of organic matter (OM) particles in the frequent light and moderate (L & M) hazes in winter in the North China Plain (NCP) have not been examined, even though OM dominates these fine particles. In the present work, morphology, mixing state, and size of organic aerosols in the L & M hazes were systematically characterized using transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy, atomic force microscopy, and nanoscale secondary ion mass spectrometer, with the comparisons among an urban site (Jinan, S1), a mountain site (Mt. Tai, S2), and a background island site (Changdao, S3) in the same hazes. Based on their morphologies, the OM particles were divided into six different types: spherical (type 1), near-spherical (type 2), irregular (type 3), domelike (type 4), dispersed-OM (type 5), and OM-coating (type 6). In the three sampling sites, types 1–3 of OM particles were most abundant in the L & M hazes and most of them were internally mixed with non-OM particles. The abundant near-spherical OM particles with higher sphericity and lower aspect ratio indicate that these primary OM particles formed in the cooling process after polluted plumes were emitted from coal combustion and biomass burning. Based on the Si-O-C ratio in OM particles, we estimated that 71 % of type 1–3 OM particles were associated with coal combustion. Our result suggests that coal combustion in residential stoves was a widespread source from urban to rural areas in NCP. Average OM thickness which correlates with the age of the air masses in type 6 particles only slightly increased from S1 to S2 to S3, suggesting that the L & M hazes were usually dry (relative humidity < 60 %) with weak photochemistry and heterogeneous reactions between particles and gases. We conclude that the direct emissions from these coal stoves without any pollution controls in rural areas and in urban outskirts contribute large amounts of primary OM particles to the regional L & M hazes in North China.
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Slavskiy, Vasiliy, Tat'yana Nakonechnaya, Evgeny Titov und Zoran Govedar. „STUDY OF BIODIVERSITY AND ASSESSMENT OF THE STATE OF COMMON HAZEL (CORYLUS AVELLANA L.) IN THE VORONEZH REGION“. Forestry Engineering Journal 12, Nr. 3 (13.10.2022): 51–61. http://dx.doi.org/10.34220/issn.2222-7962/2022.3/5.
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Biodiversity is one of the stand sustainability criteria. The study of the biodiversity of common hazel in the
Voronezh region will make it possible to control the conservation of the genetic potential, as well as update information
on the state of populations and forms in order to develop recommendations for the effective cultivation of this breed.
Interest in common hazel in the Russian Federation has increased significantly in recent years - more and more attention
is paid to breeding work not only in areas of industrial cultivation, but also in the Volga region, the Central regions of
the Russian Federation, Siberia and the Urals. The article considers biodiversity and assesses the state of common hazel
growing in different types of forest conditions on the territory of the Prigorodny and Somovsky forestries of the Voronezh region. The studies were carried out using standard methodological approaches and current regulatory documents.
The study area was 17580.7 ha, incl. with the presence of hazel - 4595.5 ha (26% of the total area). Field survey was
carried out on more than 5% of the total area. In terms of relative and absolute density of growth, common hazel reaches its maximum in fresh oak forests. In the course of biodiversity assessment studies, it was revealed that common hazel
occurs in a very wide range of forest conditions, and therefore, can grow together with most forest-forming species of
the Voronezh region. Mostly found in fresh oak forest conditions - the most common TLU S2D (occurrence about 83%)
and D2 (77%). At the same time, with a certain degree of success, it can grow in both dry and wet forest conditions. In
the course of assessing the state of common hazel plantations, no significant differences were found depending on the
growth in the types of forest conditions. The exception is excessively wet and very dry conditions. The revealed tolerance to growing conditions must certainly be taken into account when increasing the biodiversity of forests in the Voronezh region.
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Rutkowski, Robert, Marek Keller und Patrycja Jagołkowska. „Population genetics of the hazel hen Bonasa bonasia in Poland assessed with non-invasive samples“. Open Life Sciences 7, Nr. 4 (01.08.2012): 759–75. http://dx.doi.org/10.2478/s11535-012-0051-2.
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AbstractDespite a severe decrease in the number of hazel hens during the 20th century, nowadays this grouse species is rather common in the forests of Northeastern and Southern Poland. We used mitochondrial control region and microsatellite markers to examine the genetic variability of Polish populations of hazel hens. We used non-invasively collected faeces to estimate genetic variability within populations, genetic differentiation among populations as well as genetic differentiation between two regions inhabited by two different subspecies of hazel hens. Our results confirm the usefulness of DNA from faeces to obtain reliable information on the population genetics of hazel hens. We found a rather high level of genetic variability in the Polish population. Genetic variability was higher in birds from continuous forests in the South of the country than in birds from fragmented habitats in the Northeast. Genetic differentiation was higher among subpopulations from Northeastern Poland. Additionally, both classes of molecular markers suggested the presence of two distinct genetic groups of birds, corresponding to previously described subspecies. We conclude that the genetic variability of the Polish hazel hen population has been influenced by habitat fragmentation and the history of the population during its post-glacial colonization of Poland from different glacial refugia.
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Estrela, Raissa, Mark R. Swain und Gael M. Roudier. „A Temperature Trend for Clouds and Hazes in Exoplanet Atmospheres“. Astrophysical Journal Letters 941, Nr. 1 (01.12.2022): L5. http://dx.doi.org/10.3847/2041-8213/aca2aa.
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Abstract The transmission spectra of exoplanet atmospheres observed with the Hubble Space Telescope (HST) in the near-infrared range (1.1–1.65 μm) frequently show evidence for some combination of clouds and hazes. Identification of systematic trends in exoplanet clouds and hazes is potentially important for understanding atmospheric composition and temperature structure. Here we report on the analysis of spectral modulation using a large, uniformly processed sample of HST/WFC3 transit spectra from 62 exoplanets. The spectral retrieval includes the capability to detect and represent atmospheres in which the composition departs from thermochemical equilibrium. By using this unique catalog and measuring the dampening of spectral modulations compared to strictly clear atmospheres, we identify two populations. One is completely cloud/haze free spanning a wide temperature range, while the other population, identified as “partial cloud/hazes,” follows a trend from mostly cloudy/hazy around 500 K to mostly clear at ∼1500 K. We also find that a partially transparent aerosol component is frequently present and that it is typically vertically distributed throughout the atmospheric column. Our findings also suggest that while clouds and hazes are common in exoplanet atmospheres, the majority of planets have some level of detectable spectral modulation. Additionally, the empirical trend that clouds and hazes are minimized at 1460.86 K − 405 + 316 revealed in our catalog has predictive utility for modeling the performance of large-scale transiting exoplanets survey, such as planned with the Ariel mission. This trend can also be used for making a probability-based forecast of spectral modulation for a given source in the context of future JWST observations. Future observations including the optical and/or a broader spectral coverage may be useful to further quantify the trend reported here.
Bücher zum Thema "Common witch hazel"
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Dunlop, Storm. 8. Localized weather. Oxford University Press, 2017. http://dx.doi.org/10.1093/actrade/9780199571314.003.0008.
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Although certain weather events, such as violent tornadoes, affect relatively small areas on the ground, there are a number of effects that are localized in their influence. ‘Localized weather’ first considers fog, which may be associated with widespread anticyclonic conditions leading to a significant drop in temperature at night, and relatively quiet, or windless, conditions. The two common forms of fog are radiation fog and advection fog. Haze and smog are also discussed along with local winds divided into two groups: sea, land, and lake breezes; and valley and mountain winds. Katabatic winds, föhn conditions, lake effect snow, ice storms, and glaze (or ‘black ice’) are also considered.
Buchteile zum Thema "Common witch hazel"
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Kretzer, Andreas. „Beyond the Haze of Carnival Candles“. In Advances in Media, Entertainment, and the Arts, 21–43. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-7254-2.ch002.
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This chapter addresses new approaches for design and production practices by applying film as a medium and production design techniques as a method in (interior) architectural education. In various courses and formats with international students on Bachelor and Master level, the author is exploring cinematic tools for phenomenological analysis, scenographic reinterpretation, and architectural storytelling in order to expand the range and toolbox of contemporary academic teaching in the architectural context. The common ground of architectural and cinematic space goes back much further than the history of film itself. But despite comprehensive literature on both the topic of sequence in architecture and fundamental film theoretical writings on cinematic space, we are still the men who stare at static representations. Off the beaten path of tried and tested design methods and beyond Gottfried Semper's “haze of carnival candles,” cinematic methods are providing valuable tools for the creation, evaluation and representation of spatial designs in (interior) architecture.
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Kontolemakis, George. „Virtual Communities“. In Encyclopedia of Multimedia Technology and Networking, Second Edition, 1512–19. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch204.
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In recent years, computer-mediated communication has been the enabling factor for connecting people to one another and establishing “virtual relationships” (Igbaria, 1999; Johnston, Raizada, & Cronin, 1996). Virtual communities evolved as users of the early networks utilized them mainly for informal rather than business-related communication. These communities were not planned development in the sphere of computer networking. As this form of interaction increased, the users began to demand better and improved technology and functionality which would assist them in their interactions. “Virtual Communities describe the union between individuals or organizations who share common values and interests using electronic media to communicate within a shared semantic space on a regular basis” (Schubert, 1999). This was one of the first definitions of Virtual Communities. Nowadays, in considering companies that are building or trying to build virtual communities, it seems that the up-to-date definition of Virtual Communities is that these “involve establishing connections on electronic networks among people with common needs so that they can engage in shared discussions that persist and accumulate over time leading to complex webs of personal relationships and an increasing sense of identification with the overall community” (Hagel, 2007).
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Ellis, Peter Berresford. „O“. In Dictionary Of Celtic Mythology, 173–79. Oxford University PressNew York, NY, 1994. http://dx.doi.org/10.1093/oso/9780195089615.003.0016.
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Abstract Oak. Of all the trees, it is the oak that has been most associated with the druids as their sacred tree. Some scholars argue that the very word “druid” derives from the word “oak-knowledge” (dru-vid), mainly because Pliny the Elder associated it with being cognate with the Greek word for oak. Certainly veneration of the oak was widespread among the Celts wherever they were. In Galatia, the state set up by the Celts on the central plain of Turkey, the capital was recorded by Strabo as Drunemeton-the oak sanctuary. Maxi mum Tyrius went further and claimed that the Celts saw the father of the gods (Zeus) in the image of a lofty oak. However, in Irish mythology the yew, hazel, and rowan trees are more frequently referred to than the oak. Certainly sacred trees were common and used as totems. Each clan had its sacred tree, and the most demoralising thing a hostile clan could do to another was to invade and fell the sacred tree. These were regarded as the crann bethadh, or “tree of life.” In early Christian tradition we find many churches significantly sited by druidic oaks in Ireland: Cill Daire (Kildare), the “Church of the Oak,” founded by Brigid; the great monastic school of Daire Maugh (Durrow), “Plain of the Oaks,” in Wexford; and Daire Calgaich (Derry), Colmcille’s favourite spot, which was the “Oak Grove of Calgaich.” Mistletoe, associated with the Continental Celts, is not a native Irish plant and was only transported to Ireland in the eighteenth century.
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Wells, H. G. „The Landing on the Moon“. In The First Men in the Moon, herausgegeben von Simon J. James. Oxford University Press, 2017. http://dx.doi.org/10.1093/owc/9780198705048.003.0006.
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I remember how one day Cavor suddenly opened six of our shutters and blinded me so that i cried aloud at him. The whole area was moon, a stupendous scimitar of white dawn with its edge hacked out by notches of darkness, the crescent shore of an ebbing tide of darkness, out of which peaks and pinnacles came climbing into the blaze of the sun. I take it the reader has seen pictures or photographs of the moon,* so that I need not describe the broader features of that landscape, those spacious ringlike ranges vaster than any terrestrial mountains, their summits shining in the day, their shadows harsh and deep, the grey disordered plains, the ridges, hills, and craterlets, all passing at last from a blazing illumination into a common mystery of black. Athwart this world we were flying scarcely a hundred miles above its crests and pinnacles. And now we could see, what no eye on earth will ever see, that under the blaze of the day the harsh outlines of the rocks and ravines of the plains and crater floor grew grey and indistinct under a thickening haze, that the white of their lit surfaces broke into lumps and patches, and broke again and shrank and vanished, and that here and there strange tints of brown and olive grew and spread.
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Gupta, Sumeet. „Enhancing E-Commerce through Sticky Virtual Communities“. In Encyclopedia of Multimedia Technology and Networking, Second Edition, 477–81. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch064.
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Virtual communities (VCs) are places on the Web where people can find and then electronically ‘talk’ to others with similar interests. VCs primarily act as coffee shops, where people come and meet each other rather than focusing on content or commerce (Gupta & Kim, 2004). Still there are commercial ones where people can conduct transaction, auction, and commerce. The concept of a virtual community was born in 1993 when the Internet was first established in the United States (Rheingold, 1993). Today, virtual communities are more than just a means of connecting individuals and organisations. Today VCs acts as a business model employed by the digital economy for generating income, primarily through advertising (Reinhard & Wolkinger, 2002). Although virtual communities are still widely popular today, accounting for 84% of the Internet usage in 2002 (Horrigan, 2002), no one has yet agreed on a common definition for the term (Schoberth & Schrott, 2001). Schubert and Ginsberg (2000) defines a virtual community as a shared semantic space where individuals and organisations come together regularly to share common interests and values electronically. The definition varies depending upon the purpose served by the Web site. Based on a comprehensive research, Gupta and Kim (2004) developed a definition based on essential elements of a virtual community and define VC as a groups of like-minded strangers who interact predominantly in cyberspace to form relationships, share knowledge, have fun, or engage in economic transactions (Gupta & Kim, 2004). VCs play a bigger role in many aspects of a member’s life, from forming and maintaining friendships and romantic relationships, to learning, forming opinions, purchasing, and consuming products and services (Hagel & Armstrong, 1997). VCs are also ideal tools for e-commerce, marketing, knowledge building, and e-learning activities. Particularly, VCs add value by providing repeated points of contact which increase the stickiness of the Web site (Laudon & Traver, 2003). People love to interact on Internet and by facilitating their interaction users can be retained on site. The longer they are on site the greater are the chances of making the sale. How do these VCs exactly increase the stickiness of the Web site and how do they add business value to the Web site? To answer these questions we will visit hardwarezone.com (Appendix 1), a Singapore based virtual community which has been phenomenally successful since its inception. But before that we will briefly review the concept of stickiness.
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Kushnerenko, Vladyslav, und Andrey Andreychenko. „GREENING OF INDUSTRIAL POULTRY TERRITORIES AS ONE OF THE WAYS OF REDUCING THE NEGATIVE IMPACT ON THE ENVIRONMENT“. In Traditions and new scientific strategies in the context of global transformation of society. Publishing House “Baltija Publishing”, 2024. http://dx.doi.org/10.30525/978-9934-26-406-1-7.
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In the area of operation of large poultry farms, atmospheric air can be polluted by microorganisms, dust, bad organic compounds that are products of decomposition of organic waste, as well as oxides of nitrogen, sulfur, and carbon. The epizootic process in conditions of intensive poultry farming is distinguished by the fact that even weakly virulent and conditionally pathogenic microflora, as a result of recirculation and frequent changes of generations, can increase virulence properties and create a serious epizootic and epidemiological threat. The purpose of the work is to demonstrate greening of industrial poultry farms as one of the ways to reduce the negative impact on the natural environment. The presented material in the work: systematization of achievements in theory and practical application of green plantings to prevent environmental pollution using various options for improving the territories of poultry enterprises. The research methodology is based on general research methods of analysis and synthesis, induction and deduction, observation and abstraction, which systematize the achievements of the theory and practice of modeling systems of various nature in the natural sciences and, in particular, in animal husbandry and plant breeding. As a result of research and experiments, the expediency and effectiveness of using green plantings, which have a great deodorizing ability – retain and absorb gases, have been theoretically and practically substantiated. The positive effect of greenery on physiological indicators (thermoregulation, oxidation processes) and animal productivity has been practically established. The dustiness of the air under the trees is less than in the open area: in May by 20%, in June by 21.8%, in July by 34.1%, in August by 27.7% and in September by 38.7%. During the entire growing season, the average concentration of dust in the open area was 0.9 mg/m3 of air, and under trees – 0.52 mg/m3 of air, i.e. 42.2% less. The most gas-resistant trees and shrubs are: Pennsylvania maple, sycamore, Manchurian hazel, three-spined gorse, gooseberry (all species), common ivy, Cossack juniper, Canadian and Daur moonseed, large-leaved poplar, gray poplar, Canadian poplar, pomegranate, ailant the highest, white acacia, amorphous shrub, pinnate birch, common privet, white mulberry. By alternating plantations with open areas around the places of emission of harmful gases, it is possible to significantly increase the ventilation of the territory in the vertical direction. In a hot climate, green spaces provide protection from dry and dusty winds and at the same time contribute to airing the territory of the enterprise, cleaning its atmosphere from harmful pollutants. Value/originality. The effectiveness of the proposed method of preventing environmental pollution provides new opportunities for poultry enterprises in the preservation of ecosystems and sustainable development of territories. Measures for the protection of atmospheric air should be carried out on the basis of widely distributed research works devoted to the study of the quantitative concentration of pollutants entering the atmosphere and the distance of their spread.
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Sun, Jun. „Wireless Local Communities in Mobile Commerce“. In Mobile Computing, 1780–87. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-054-7.ch143.
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In mobile commerce (m-commerce), consumers engage a ubiquitous computing environment that allows them to access and exchange information anywhere and anytime through wireless handheld devices (Lyttinen & Yoo, 2002). While consumers generally sit before personal computers to browse e-commerce websites through the Internet, they are free to move around while connected in m-commerce and can truly be called mobile consumers. Compared with stationary consumers in e-commerce, mobile consumers have special information needs regarding their changing environment. Consumers mainly access information through wireless portals in m-commerce. A lot of these portals provide mobile consumers information specific to where they are. For example, various location-based services have emerged to push information about what is available and occurring nearby to mobile consumers (Rao & Minakakis, 2003). Such wireless portal services overcome the difficulty of searching information with handheld devices, typically cell phones. However, pushing information to users based on where they are may annoy them, because this approach disregards the specific needs and interests of people in context and deprives their control over what they want to know (Barkhuus & Dey, 2003). In contrast to information pushed by product or service providers, consumers are likely to regard peer-to-peer reference groups as credible sources of product/service information and be open to their informational influence (Miniard & Cohen, 1983). For example, if consumers hear from others that nearby stores offer discounts on certain commodities, they may go to these stores to have a look for themselves. To capitalize on such business opportunities in m-commerce, this article proposes a community portal approach, a so-called wireless local community (WLC). As the name suggests, a WLC is a virtual community that allows mobile consumers in a functionallydefined area to exchange information about what is available and occurring nearby with each other through wireless handheld devices. By far, most virtual communities are built upon the infrastructure of the Internet and they refer to “… groups of people with common interests and needs who come together online… to share a sense of community with like-minded strangers, regardless of where they live” (Hagel & Armstrong, 1997, p.143). Like members in these online communities, WLC members must share something that they are interested in and need in common. Because WLC membership is geographically determined, WLC coverage areas must “supply” what can potentially meet the interests and needs of mobile consumers in them, and such areas may include: shopping plazas, tourist parks, and sports facilities, among others. These functionally-defined areas, which determine the scope, theme, and membership of WLCs, are the settings in which consumer behavior occurs and they constitute the supply contexts of local consumers. In this sense, WLCs are context-based virtual communities, in contrast to most on-line communities, which are generally topic-based. This article first outlines the macro-level conceptual design of the WLC approach and discusses its technical, operational, and economical feasibilities. The success of WLCs, like that of online communities, largely depends on how micro-level implementations can promote member participation and enhance member experience. Based on an understanding of how mobile consumers share contextual information through the mediation of WLCs, this article discusses specific implementation issues.
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Mohd Yusof, Shafiz Affendi. „Building Social Relationships in a Virtual Community of Gamers“. In Encyclopedia of Multimedia Technology and Networking, Second Edition, 171–77. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch024.
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The explosive growth of the Internet has enabled virtual communities to engage in social activities such as meeting people, developing friendships and relationships, sharing experiences, telling personal stories, or just listening to jokes. Such online activities are developed across time and space with people from different walks of life, age groups, and cultural backgrounds. A few scholars have clearly defined virtual community as a social entity where people relate to one another by the use of a specific technology (Jones, 1995; Rheingold, 1993; Schuler, 1996) like computer-mediated communication (CMC) technologies to foster social relationships (Wood & Smith, 2001). It is further supported by Stolterman, Agren, and Croon (1999) who refers to virtual community as a new social “life form” surfacing from the Internet and CMC. There are several types of virtual community such as the virtual community of relationship, the virtual community of place, the virtual community of memory, the virtual community of fantasy, the virtual community of mind/interest, and the virtual community of transaction (Bellah, 1985; Hagel & Armstrong, 1997; Kowch & Schwier, 1997). These types of virtual community all share a common concept, which is the existence of a group of people who are facilitated with various forms of CMCs. With the heightened use of CMCs, people begin to transit and replicate the same sense of belonging through meaningful relationships by creating a new form of social identity and social presence. As emphasized by Hiltz and Wellman (1997), people can come from many parts of the world to form “close-knit” relationships in a virtual community. The purpose of this article is to understand how online gamers as a virtual community build social relationships through their participation in online games. Empirically, several aspects in the context of virtual community are still not fully understood, such as: (1) What types of rules, norms, and values are grounded in virtual community? (2) How do people institutionalize their members in a virtual community? and (3) Why do they create social relationships in virtual environment? The identified gap thus explains why studies have produced inconsistent findings on the impacts of online game play (Williams, 2003), in which many studies in the past have only looked at aggression and addiction. A more detailed understanding of the social context of in-game interactions would help to improve our understanding of the impact of online games on players and vice versa. Therefore, this article will present a case study of a renowned online game, Ever Quest (EQ), with the aim of understanding how players establish and develop social relationships. In specific, the Institutional Theory was applied to examine the social relationships among the players, and a hermeneutic- interpretive method was used to analyze the data in order to address the following general research question, “How is the social world of EQ constituted in terms of building social relationships?”
Konferenzberichte zum Thema "Common witch hazel"
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Brown, Richard O., und Donald I. A. MacLeod. „Saturation and Color Constancy“. In Advances in Color Vision. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/acv.1992.fe3.
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Color constancy is the phenomenon in which the colors of surfaces remain approximately constant despite considerable variations in the physical signals reaching the eyes from those surfaces. The analysis of color constancy is commonly restricted to changes in the intensity and chromaticity of the illuminant. We have been exploring aspects of color constancy which occur in the absence of shifts in the mean intensity or chromaticity of the stimulus, but depend instead on changes in the variance of the tristimulus values of the set of visible surfaces. (In natural settings, such effects may be due either to desaturation by haze, or to changes in the bandwidth of the illuminant.) The effects we consider are inconsistent with most previously published theories of color constancy.
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Chernyshov, Mikhail. „FORESTRY PRINCIPLES AND LOGISTICS IN THE SPHERE OF REPRODUCTION OF OAK FORESTS IN THE CENTRAL BLACK EARTH“. In Modern machines, equipment and IT solutions for industrial complex: theory and practice. FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov, 2021. http://dx.doi.org/10.34220/mmeitsic2021_144-149.
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The reproduction of forests is long-term. A complex and multifaceted silvicultural and technological process taking place in the conditions of disordered economic human activity and global warming. Reproduction of oak forests in the Central Black Earth Region, which are the cradle of Russian ship oak forests, has a regional specificity, which consists in the fact that in most forestries it is carried out mainly through artificial reforestation and sometimes combined. The reason is the complete absence of natural seed regeneration of oak under the canopy of mature and over-mature stands entering clear and selective sanitary felling.Even in narrow-cut and clear- cut areas, including those cultivated in accordance with the current requirements of the “Regulations for reforestation”, there is an intensive change of the main forest-forming species (pedunculate oak, common ash and Norway maple) to accompanying and less valuable (aspen, willow, birch , linden, hazel, etc.).On the basis of generalization of the long-term experience of the forestries of the region, logistics and silvicultural principles of sustainable-expanded, program- targeted and effective reproduction of oak forests are proposed and scientifically substantiated, without strict adherence to which, in practice, it is impossible to grow new durable high-quality, sustainable and highly productive oak forests with given target taxation characteristics. A step-by- step algorithm of sustainably expanded reproduction of oak forests of the future is considered. Prospects, ways and methods of high-quality and sustainably expanded reproduction of oak forests in the forestries of the Central Chernozem region have been determined.The prospects, ways and methods of high-quality and sustainably expanded reproduction of oak forests in the forestries of the Central Chernozem region have been determined. Controlled natural seed and artificial methods with the obligatory timely and high-quality agrotechnical and silvicultural maintenance, preventing the drowning of the pedunculate oak by other, faster-growing species, should become priority.