scholarly journals Non-microbiological turbidity of beer: Part 2 – a case study

2021 ◽  
Vol 67 (6) ◽  
pp. 523-528
Author(s):  
Jana Olšovská ◽  
Petra Kubizniaková ◽  
Martin Slabý ◽  
Lucie Kyselová

Non-microbial beer turbidity of lager beers often indicates a technological problem. Therefore, the occurrence of permanent haze in filtered and stabilized beer should not be underestimated. In this study, practical examples from industrial breweries, where several types of non-microbiological haze of colloidal were identified, are presented. These examples of haze were caused by slightly different factors, and as a result, they had a different microscopic image. It is often accompanied by mechanical impurities and sometimes by microorganisms that function as nucleation centers. Moreover, a very interesting example of almost brilliant permanent beer haze caused by the destruction of yeast cells with the following pouring intracellular contents of cells into beer is introduced. This phenomenon, which could be called “precedent”, was caused by a bad physiological condition of yeasts cells and inappropriately chosen yeast separation technology.

1980 ◽  
Vol 9 (2) ◽  
pp. 123-148
Author(s):  
Thomas T. Liao

This paper reports on an NSF-supported project to develop Socio-Technological Instructional Modules for use with college students. Each module or case study focuses on a particular national socio-technological problem of current and future importance. The modules were field-tested with freshmen engineering students as well as nonengineering undergraduates and continuing education students in technology and society courses. To satisfy these audiences, each module consists of a Student Reading which provides basic background information for all students. The Instructors' Guide, besides providing suggestions for using support materials such as audio-visual materials and computer programs, contains engineering or technical extensions and sociological extensions.


2018 ◽  
Vol 1 (2) ◽  
pp. 99
Author(s):  
Ike Mardiati Agustin ◽  
Septiyana Septiyana

ANXIETY IN  PRIMIPHARA POSTPARTUM MOTHERS WITH LACTATION TROUBLE ON  MATERNITY WARD ABSTRACTLabor or delivery is a normal physiological condition happens in life, especially to women. Changes in the role and process of newborn-baby care will lead to psychological problems. Anxiety is one of psychological problems that happens to primiphara mothers. Anxiety will affect the process of lactation (breastfeeding) for some primiphara mothers with psychological problems. This study is to provide an overview of a case study of nursing care for primiphara postpartum mothers who have problem with breastfeeding because of anxiety. This scientific paper is an analytical descriptive with a case study approach. The study was conducted on two primiphara mothers with anxiety in their breastfeeding. Data were obtained through interview, observation, and documentation. After having nursing care, there was a decrease in anxiety (patient 1: from 44.6% to be 30.3%, patient 2: from 32.1% to be 19.6 %). Besides, there is a difference in the increase of affective ability, with the highest increase patient 2 (60%) while patient 1 (40%). It is advisable for nurses to provide nursing care for primiphara postpartum mother with breastfeeding problem caused by anxiety. Keywords: Labor, primiphara, anxiety, lactation. 


2018 ◽  
Vol 3 (1) ◽  
pp. 80-86
Author(s):  
Bernadetta Ambarita ◽  
Winda Mintauli Sinurat

Hemorhoids are one of the most common gastrointestinal disorders found in everyday practice and are often the main differential diagnoses for almost all anorectal complaints. (murdani Abdullah 2014). Hemorhoid in pregnant women is common and is a physiological condition that accompanies pregnancy. Pregnancy will increase the incidence of hemorhoid, where more than 50% of pregnant women encountered this case. The risk will increase by 20-30% after the second pregnancy or more. Surgical treatment of hemorrhoidectomy is an option that must be taken by pregnant women if treatment conservatively fails. (Leliana Carolina; 2014).Goals : Able to perform Midwifery Care on Mrs.S Age 33 Years old Pregnancy age 33 Weeks 1 Day With Hemoroid Pregnancy At Elisabeth Hospital Medan in 2018 by using the varney midwifery management approach and solve the problem if there is a gap between practice and theory in pregnant women.Methods: Based on the case study on Mrs.S, the method used for data collection was primary data consisting of physical inspection appears there was swelling on the nus, the pain.Result: Based on case of Mrs.S with hemorhoids pregnancy done handling for 3 days in Elisabeth Hospital Medan. After handling the pain and giving therapy.Conclution : Midwifery care on Mrs.S with Hemoroid Pregnancy in its execution there is no gap between theory and practice in the field.


2021 ◽  
Vol 68 (4) ◽  
pp. 773-780
Author(s):  
Zala Štukovnik ◽  
Urban Bren ◽  
Bren Rozman

An electrochemical device that serves as a model biosensor and contains yeast Saccharomyces cerevisiae as the active biological element was developed. Different configurations of the electrochemical cells were assembled and tested. Stainless steel was used in the electrochemical cell composition process and the surface of this metal electrode was modified with a thin layer of WO3 if necessary. The yeast Saccharomyces cerevisiae was adhered to the working electrode. The resulting model biosensor was then used to monitor the response to a 10% CH3OH. For detection of biological activity, the electrochemical impedance spectroscopy (EIS) method was applied with a portable potentiostat/galvanostat, where the Bode and the Nyquist plots were interpreted. The stability of the device was beforehand determined by measuring the open circuit potential (OCP). The topography of the electrodes was inspected using the techniques of scanning electron microscopy and optical microscopy. The investigated model biosensor as a case study for the development of more complex biosensors that utilize living cells as the active layer.


1980 ◽  
Vol 86 (1) ◽  
pp. 113-122 ◽  
Author(s):  
R L Steere ◽  
E F Erbe ◽  
J M Moseley

Fracture-temperature related differences in the ultrastructure of plasmalemma P faces of freeze-fractured baker's yeast (Saccharomyces cerevisiae) have been observed in high-resolution replicas prepared in freeze-etch systems pumped to 2 X 10(-7) torr in which the specimens were protected from contamination by use of liquid nitrogen-cooled shrouds. Two major P-face images were observed regardless of the source of the yeast, the age of the culture, the growth temperature, the physiological condition, or the suspending medium used: (a) a "cold-fracture image" with many strands closely associuated with tubelike particles (essentially the same image as those previously published for yeast freeze-fractured at 77 degrees K), and (b) a "prefracture image" characterized by the presence of more distinct tubelike particles with few or no associated strands (for aging cultures, the image recently referred to as "paracrystalline arrays" of "craterlike particles"). Both types of P-face image can be found in separate areas of single replicas and occasionally even within a single plasma membrane. Whereas portions of replicas known to be fractured at any temperature colder than 218 degrees K reveal only the cold-fracture image, prefracture images are found in cells intentionally fractured at 243 degrees K and in cracks or fissures which develop during the freezing of other specimens. These findings demonstrate that the prefracture image results from the fracturing of specimens at some temperature above 230 degrees K, no t from fracturing specimens at some temperature between 173 degrees and 77 degrees K, and not from the use of "starved" yeast cells.


2013 ◽  
Vol 48 (10) ◽  
pp. 1433-1441 ◽  
Author(s):  
J. Van Dierdonck ◽  
R. Van den Broeck ◽  
A. Vansant ◽  
J. Van Impe ◽  
I. Smets

2020 ◽  
Vol 11 (3) ◽  
pp. 343
Author(s):  
Nasir, Taofiq Olaide ◽  
Aikomo, Olatunji

Practicability of theatre (irrespective of actor’s physiological condition) is the availability of a body that is capable of moving in an occupied space and responds to direction. Consequently, this study examines the process involved in directing plays for the visually impaired. It employs the analytical and historical methods while participant-observation serves as an instrument used. Adopted is Jaques Derrida’s theory of Deconstruction which is grounded in how communication is effected and how languages, codes, signs and movements and symbols are interpreted. Undoubtedly, the visually impaired persons are fit for theatre practice and directing them though challenging, is an interesting endeavor but this is better achieved through reflective darkness. It is hereby recommended that for the visually impaired, reflective darkness, which is a synthesis of spatial arrangement, verbal and non-verbal communication is the way to enhance their communication capability and creative ability. Therefore, attention should be given to people with special needs in general and the visually impaired in particular, as their involvement in theatre practice/performance will tremendously provide a better future for them as it ensures self-reliance which will be a complete departure from the usual degrading and dehumanising practices such as alms begging, crime and caricature known of them.


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