scholarly journals Bacterial Cellulose: Multipurpose Biodegradable Robust Nanomaterial

2021 ◽  
Author(s):  
Agata Kołodziejczyk
Keyword(s):  
Bacterial Cellulose ◽  
Material Science ◽  
Daily Life ◽  
Sustainable Use ◽  
Symbiotic Bacteria ◽  
Packing Materials ◽  
Global Industry ◽  
Synthetic Materials ◽  
Long Time ◽  
Fabric Production

One of actual global problem is clothes and packing materials biodegradability leading to tremendous water contamination. In order to develop ecologically friendly, game-changing in global industry fabric production, we propose a concept to implement kombucha. Kombucha is a symbiotic bacteria and yeast multispecies consortium producing the most abundant polymer on Earth - bacterial cellulose. There are many advantages of bacterial cellulose that are widely used in medicine, material science, food industry and waste management. Unfortunately: long time of bacterial cellulose polymerisation process, lack of its control, diversity in biological composition, finally, acidic smell and disturbances of kombucha growth - all this issues limit the interest of kombucha use to replace easy-accessible and widely applied synthetic materials. In this chapter will be described a revolutionary concept to develop practical and sustainable use of bacterial cellulose as natural alternative for synthetic materials, particularly for a synthetic fabrics and plastics replacement. The optimal cultivation conditions and examples of bacterial cellulose in applications for daily life will be explained.

scholarly journals Bacterial cellulose spheroids as building blocks for 3D and patterned living materials and for regeneration

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Joaquin Caro-Astorga ◽  
Kenneth T. Walker ◽  
Natalia Herrera ◽  
Koon-Yang Lee ◽  
Tom Ellis
Keyword(s):  
Bacterial Cellulose ◽  
Building Blocks ◽  
Genetically Engineered ◽  
High Yield ◽  
Synthetic Materials ◽  
Chemical Inputs ◽  
First Time ◽  
3D Shapes ◽  
Promising Avenue ◽  
Living Materials

AbstractEngineered living materials (ELMs) based on bacterial cellulose (BC) offer a promising avenue for cheap-to-produce materials that can be programmed with genetically encoded functionalities. Here we explore how ELMs can be fabricated in a modular fashion from millimetre-scale biofilm spheroids grown from shaking cultures of Komagataeibacter rhaeticus. Here we define a reproducible protocol to produce BC spheroids with the high yield bacterial cellulose producer K. rhaeticus and demonstrate for the first time their potential for their use as building blocks to grow ELMs in 3D shapes. Using genetically engineered K. rhaeticus, we produce functionalized BC spheroids and use these to make and grow patterned BC-based ELMs that signal within a material and can sense and report on chemical inputs. We also investigate the use of BC spheroids as a method to regenerate damaged BC materials and as a way to fuse together smaller material sections of cellulose and synthetic materials into a larger piece. This work improves our understanding of BC spheroid formation and showcases their great potential for fabricating, patterning and repairing ELMs based on the promising biomaterial of bacterial cellulose.

scholarly journals Implementation of Unconstrained Chair-Type Smart Health Management Monitoring System

2018 ◽  
Vol 7 (3.34) ◽  
pp. 296
Author(s):  
Ji Yun Seo ◽  
Yun Hong Noh ◽  
Do Un Jeong
Keyword(s):  
Monitoring System ◽  
Health Management ◽  
Daily Life ◽  
Estimation Method ◽  
Discrimination Performance ◽  
Long Time ◽  
Control Section ◽  
Smart Health ◽  
Management Functions ◽  
System Disorder

Modern people spend many hours of daily life, such as study and work, to the sitting position with chairs and sofas.  If you sit for a long time with a wrong posture, musculoskeletal system disorder can occur and distraction due to low concentrations. In this research, we implemented the chair-type smart health management monitoring system which provides the user with the traditional functions of the chair more effectively and also enables various health management functions. For this reason Three load cells (SB S - beam load cell, 100 kgf) were arranged in an equilateral triangle shape between the top plate and the lower plate of the chair to construct a control section. In addition, we designed a measuring section composed of a filter and an amplifier so that we can simultaneously measure weight signal and BCG. We implemented an information-based posture discrimination algorithm of weight information and a distraction estimation method and implemented a PC and Android-based smartphone monitoring system. We conducted two experiments to evaluate the performance of the implemented system. First of all, in order to evaluate the performance of the posture discrimination algorithm, nine postures were obtained for 10 test subjects in an arbitrary order. As a result of comparing arbitrary posture and posture discrimination results, it showed discrimination performance of 97.9%. Finally, experiment was conducted to confirm the usefulness of the discrimination of distraction in daily life. The experimenter checked the change of the indicator according to the posture change during audiovisual data appreciation. Distraction continued changing posture as a result of confirming the image of the section where the numerical value is high, and confirmed that it is not concentrating on the image. The implement system can help not only health care function in daily life, but also to induce proper posture and improve sitting habit. In future studies, we intend to conduct a research to objectively demonstrate the usefulness of the Distraction estimated index. 

scholarly journals Population, and its social and religious composition in Ivanovo and Yaroslavl regions on the eve of the Axis aggression against the USSR (according to the censuses of the USSR in 1937 and 1939)

2021 ◽  
Vol 27 (1) ◽  
pp. 74-78
Author(s):  
Natalya S. Maiorova
Keyword(s):  
World War Ii ◽  
Rural Areas ◽  
Urban Population ◽  
Daily Life ◽  
World War ◽  
Religious Policy ◽  
The Core ◽  
Long Time ◽  
High Level ◽  
Anxiety And Fear

The article is devoted to the analysis of the results of population censuses conducted in the USSR in 1937 and 1939, in relation to Ivanovo and Yaroslavl regions. The research is based on census materials that had been classified for a long time and published only in the 1990s. Of all the various aspects of the censuses, the author's attention was focused on only three – population, its social structure, and religious composition. Based on the results of the censuses, conclusions are drawn about the prevalence of women in the region, both in rural areas and in cities. It was women who, in the conditions of World War II, became the strong rear, on whose shoulders the front was supported by food, uniforms, and weapons. The urban population was greater in Ivanovo Region, which was explained by its characteristic high rates of industrialisation. The 1937 census recorded a fairly high level of religiosity, despite the largely anti-religious policy that had been carried out for almost 20 years. The war led to an increase in religiosity, probably because often only faith could become the core around which daily life was built, full of deprivation, anxiety and fear for loved ones.

Effects of cultivation, washing, and bleaching conditions on bacterial cellulose fabric production

2018 ◽  
Vol 89 (6) ◽  
pp. 1094-1104 ◽  
Author(s):  
Juyeon Han ◽  
Euijin Shim ◽  
Hye Rim Kim
Keyword(s):  
Bacterial Cellulose ◽  
Textile Industry ◽  
Control Sample ◽  
X Ray Diffraction ◽  
Cellulose I ◽  
Naoh Solution ◽  
New Type ◽  
The Fourier Transform ◽  
Bleaching Step ◽  
Fabric Production

This study aims to compare different conditions in the three-step (cultivation, washing, and bleaching) production of white bacterial cellulose (BC) fabric to introduce it as a new type of fabric in the textile industry. The BC fabric was evaluated on the basis of its surface morphology and chemical structure. The “production BC” after the cultivation step was cultured using glucose as the carbon source in the Hestrin–Schramm (HS) medium. It was produced with the highest production yield (33.2 ± 6.85%), the highest thickness (0.35 ± 0.09 mm), and the flattest surface (211 nm). The bacteria remaining on “washed BC” after the washing step were washed out using 3% NaOH solution, and the nanoscale network structure maintained its integrity after washing. The white BC fabric after the bleaching step was bleached using 5% H2O2 solution. The white BC fabric with the highest white index (73.15 ± 1.09%) without a natural yellowish-brown color was produced. In the Fourier transform infrared spectroscopy (FTIR) spectra of the white BC fabric, the peaks of proteins and amino acids derived from the bacteria disappeared, while the cellulose I crystal structure was maintained. Also, X-ray diffraction analysis showed that the crystallinity of the white BC fabric increased compared to that of the control sample, and the highest crystallinity of 80.6% was obtained.

A Review on Profit, Probable Hazard, and Ecological Impacts of Commonly used Chewing Gum

2021 ◽  
pp. 459-470
Author(s):  
Sanϳay Roy
Keyword(s):  
Ecological Impacts ◽  
Modern World ◽  
Chewing Gum ◽  
Artificial Sweetener ◽  
Human Beings ◽  
Negative Effects ◽  
Medical Outcomes ◽  
Synthetic Materials ◽  
Long Time ◽  
Near Future

One of the oldest habits of human beings is to chew gum that was continuing from ancient civilizations to the modern world. Chew the gum could be a quiet pleasure that charming people for a long time. The non-food item chewing gum has a long history. The stepwise progress of its development has given us better flavour and additional medicative values. The stress-releasing properties and different medical outcomes have to make chewing gum popular for everyone. Chew the gum isn’t bring solely stripling pleasure, in near future ‘chewing gum’ perhaps use as a part of the drug delivery system. Unfortunately, it has also produced some negative effects. Modern chewing gum is made by non-biodegradable hydrophobic polymer together with artificial sweetener and flavour. So chew this sort of synthetic materials over a long time could produce some adverse effects. Again, because of our irresponsible attitude to toss the waste part of chewing gum anywhere creates some kind of serious environmental litter known as ‘gum pollution’. Therefore this widespread habit causes some sort of nuisance. Thus it’s the time to think how chewing gum offers us additional pleasure and benefits while not hampering human health and surroundings.

scholarly journals Chuvash loan words in the dialects of the kreshin tatars

2021 ◽  
pp. 22-30
Author(s):  
Violetta Vitalyevna Aniferova ◽  
Zoya Nikolaevna Kirillova ◽  
Ercan Alkaya
Keyword(s):  
Daily Life ◽  
Specific Group ◽  
Loan Words ◽  
Long Time ◽  
Language Influence

The article is intended to show the relations between Tatar and Chuvash and to examine Chuvash loan words in the dialect of Kreshin Tatar, which is a specific group of Tatar people. Tatars and Chuvash, who have lived as neighbors for a long time, not only have economic and daily relations, but also a mutual language influence, as a result of which mutual loans are exchanged between them. The paper also approaches the tight links between the two peoples and some language relations. Chuvash loans are present in the various aspects of daily life of the dialect of Melki Kreshins, for example, tundi kĭn (Monday), utlari kĭn (Tuesday), kekey (meat), kukşa (skinhead), kırsut (house fairy), cĭkres (twin), çaplĭ (good, beautiful), etc. to be compared with their Chuvash parallels, in terms of usage features. In addition, the dresses of girls and women of Melki Kreshins, which are accepted as Chuvash dresses, but whose names are not taken from Chuvash, such as takıya (women's headdress, decorated with bright stones and scales, fez), tastar (hijab made of white linen weave), tastar yawligi (tastar hijab), kaşpaw (round cap decorated with scales that used to be worn by women), etc. which will be examined on the basis of their equivalent in Tatar, Chuvash and other dialects.

scholarly journals Problems of national terminology of styles and genres of Yakut folk songs

2020 ◽  
pp. 33-44
Author(s):  
A. S. Larionova
Keyword(s):  
20Th Century ◽  
Daily Life ◽  
Folk Songs ◽  
Long Time ◽  
Traditional Songs ◽  
First Time

The article analyzes the changes in the meanings of national terms of styles and genres of Sakha traditional songs during the development of the Yakut ethnomusicology. Until the end of the 20th century, dieretii yrya was regarded as the type or manner of the Sakha people singing. Recently, it has been defined as the style of the Yakut traditional singing. Initially treated as the genre of songs and later daily life song genre of the Ya- kuts, nowadays, Degeren yrya is considered a style. Also, some Yakut sing ing styles are presented which are not common in the Yakut ethnomusicology and have not been practiced in the Yakut song culture for a long time. The styles and genres of Yakut folk songs are characterized. The article provides the analysis of tradi- tional tunes of the Sakha people, including those introduced into science for the first time.

Role of Common Kitchen Remedies in Prevention of Infectious Diseases with a particular perspective of Covid-19

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1378-1383
Author(s):  
Kanyaka Bagde ◽  
Bharat Rathi ◽  
Renu Rathi ◽  
Prem Badwaik ◽  
Swapnali Khabde
Keyword(s):  
Immune System ◽  
Infectious Diseases ◽  
Viral Infections ◽  
Daily Life ◽  
The Body ◽  
Self Healing ◽  
Long Time ◽  
Common Man ◽  
Natural Way

The greatness of Ayurveda medicine is that it works on your immune system and helps to build up the body to fight against viral invasions. It is the safest, economical and natural way of self-healing. It can quickly spread among masses from rich to poor all over the country. Ayurveda has been dealing with plenty of herbs for a very long time. These herbs include some rare to prevalent herbs which we can found some in the kitchen even though if that is of any commoners. The concern is that these viral infections are very prone to attack weak immunity and take the chance to affect the country to the globe. So the prevalent herbs of Ayurveda available in the kitchen will always be helpful to get through this viral invasion. These herbs are always there to make tasty food as well as to protect the body from infectious diseases by building the immunity strong. Herbs from the kitchen are not complicated to take as a medicine. Regular use of a few herbs in the straightforward form proves its importance as a medicine. In this article a review of herbs is done which we are available in our kitchen, we are using it in our daily life, and we are getting the benefit of these which a common man might not be fully aware of about. 

Cell

2017 ◽  
Author(s):  
Paula Pryce
Keyword(s):  
Social Media ◽  
Daily Life ◽  
Experiential Knowledge ◽  
Contemplative Practice ◽  
Religious Observance ◽  
Fully Integrated ◽  
Face To Face ◽  
Long Time

This chapter narrates one woman’s story of illness and a “conscious death” as an exemplification of committed, mature contemplative practice. A long-time inter-religious contemplative practitioner and clinical psychotherapist who appears repeatedly in earlier chapters, the woman’s approach to death demonstrates how increasing solitude does not necessarily cause isolation but can catalyze the intersubjectivity of a “porous self.” The chapter acts as a narrative summary of the book’s major themes by showing how one woman fully integrated contemplative religious observance into daily life and community, including through face-to-face interactions and social media. The book then concludes with insights about how a combination of intentional living, formal ritual, intellectual study, and the intentional cultivation of ambiguity can nurture contemplative Christian experiential knowledge of the “communal body.”

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