scholarly journals Observations on the Nutrition of Maggots of Australian Blow-Flies

1933 ◽  
Vol 10 (3) ◽  
pp. 237-246
Author(s):  
M. J. MACKERRAS ◽  
M. R. FRENEY
Keyword(s):  
Early Stage ◽  
Wool Fibre ◽  
Initial Growth ◽  
Full Development ◽  
Adequate Food ◽  
Acid Reaction ◽  
Keratin Hydrolysis ◽  
The Moment ◽  
The Masses ◽  
Two Stages

1. Larvae of L. cuprina and Ch. rufifacies are capable of liquefying and digesting protein media without the intervention of bacteria. Both species and L. sericata secrete tryptic and peptic enzymes and at least L. cuprina does so from the moment of hatching. Tryptase is more abundant than peptase. Predatory activity, though a normal habit of Ch. rufifacies, is not necessary for any of these species and did not occur in the masses of Lucilia larvae used for extraction of the enzymes, although they were kept for periods up to 24 hours without food. 2. Partial development of larvae occurred in sheep dung, faeces-stained wool and in the products of keratin hydrolysis. Complete development took place in wool containing a "gummy crust" of dried exudate and in some samples of faeces-stained wool. Some of the samples of faeces-stained wool and those containing a "crust" have been demonstrated serologically by Dr I. M. Mackerras to have an increased content of soluble sheep protein as compared with normal wool. A marked increase of soluble protein has been demonstrated in struck wool both chemically and serologically. 3. Moisture, warmth, shelter and aeration are essential physical conditions for larval development. In addition, an alkaline reaction is relatively favourable and an acid reaction relatively unfavourable. 4. There are normally two stages in the development of a primary strike, the first stage being from hatching up to the time the larvae attack the skin, the outer layer or epidermis of which is approximately 36µ thick (Whitnall, 1931). During this stage they must feed, if at all, on materials already present. The second stage is from the commencement of an actual skin lesion up to full development of the maggots. During this stage there is a more or less copious serous exudation, which has been shown to be an adequate food for the full development of the maggots. Faeces-staining, presence of exudate due to a prior lesion, and products of wool hydrolysis have been shown to be adequate to carry the larvae through the first stage. Wool hydrolysis on the living sheep is probably not an important factor, judging by an examination of wool samples, but we have isolated organisms which, when growing on a nutrient medium, are capable of disintegrating wool fibre. 5. The rôle of bacterial activity in strike is complex and appears to be substantially as follows: (a) to produce substances which attract the flies and stimulate them to oviposit; (b) to provide food for the initial growth of the maggots, either by rendering assimilable the inert proteins, or by causing a skin reaction with a serous exudation. 6. The immediate work for the future is a more exact determination of: (a) the nature of the food of the larvae in the early stage of growth on the living sheep; (b) the factors which influence its production; and (c) the mechanism by which the larvae invade the skin.

Kinetics of Mixed Low-Level Waste Incapsulation Using Iron Phosphate Chemically Bonded Cement

2006 ◽  
Vol 932 ◽  
Author(s):  
A.S. Aloy ◽  
T.I. Koltsova ◽  
E.N. Kovarskaya ◽  
M.Yu. Silin
Keyword(s):  
Formation Process ◽  
Iron Phosphate ◽  
Structural Formation ◽  
Low Level ◽  
Second Stage ◽  
Bivalent Iron ◽  
Acid Reaction ◽  
The Moment ◽  
Two Stages ◽  
Kinetics Of

ABSTRACTThe iron phosphate cement (IPC) structure formation process has been studied by Mossbauer spectroscopy. The IPC is formed as a result of interaction of iron oxides with orthophosphoric acid and could be used as a matrix for immobilization of low-level radioactive waste.The structural formation process has been shown may be considered to consist of two stages. The first stage lasts to the moment of setting, when the diffusion process goes on in the liquid phase. At this stage the main fragments of the structural polymeric frame of the IPC are developed consisting of iron (+2) and (+3) phosphates. The rate of the oxides-with-phosphoric-acid reaction as well as the time of hardening depends on the bivalent iron content.The second stage begins from the moment of setting when the diffusion becomes slower. At this stage the process is characterized by the negligible increase in the iron phosphates (+2), (+3) content and transformation of the previously formed phosphates.The nuclear gamma-resonance (NGR) parameters have been determined of FeH3(PO4)2·2.5H2O, forming in the hematite (Fe2O3) based IPC: isomeric shift (IS) = 0.46 mm/s, quadrupole splitting (QS) = 0.197 mm/s, FWHM =0.282 mm/s.

Perceiving at a distance: enaction, exteriority and possibility – a tribute to John Stewart

2021 ◽  
pp. 105971232110310
Author(s):  
Charles Lenay
Keyword(s):  
Experimental Study ◽  
Perceptual Experience ◽  
Spatial Perception ◽  
Distant Object ◽  
New Approach ◽  
Second Stage ◽  
The Moment ◽  
Two Stages

The aim of this article is to offer a new approach of perception regarding the position of a distant object. It is also a tribute to John Stewart who accompanied the first stages of this research. Having already examined the difficulties surrounding questions of the perception of exteriority within the framework of enactive approaches, we will proceed in two stages. The first stage will consist of an attempt to explain distal perception in terms of individual sensorimotor invariants. This poses the problem but fails to solve it. The second stage will propose a new pathway to account for spatial perception; a pathway that does not deny the initial intuitions of the autopoietic enactive approaches, but one which radically changes the conception of cognition by considering, from the perceptual stage, the need to take into account interindividual interactions. The protocol of an original experimental study will characterize this new approach considering the perceptual experience of objects at a distance, in exteriority, in a space of possibilities without parting from the domain of interaction. To do this, we have to work at the limits of the perceptual crossing, that is, at the moment when the perceptual reciprocity between different subjects begins to disappear.

scholarly journals High Fat Diet Induces Adhesion of Platelets to Endothelium in Two Models of Dyslipidemia

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Jaime Gonzalez ◽  
Wendy Donoso ◽  
Natalia Díaz ◽  
María Eliana Albornoz ◽  
Ricardo Huilcaman ◽  
...  
Keyword(s):  
High Fat Diet ◽  
Early Stage ◽  
Endothelial Activation ◽  
Mice Model ◽  
High Fat ◽  
Early Stages ◽  
Endothelial Surface ◽  
Two Stages ◽  
Adhesion Of Platelets

Cardiovascular diseases (CVD) represent about 30% of all global deaths. It is currently accepted that, in the atherogenic process, platelets play an important role, contributing to endothelial activation and modulation of the inflammatory phenomenon, promoting the beginning and formation of lesions and their subsequent thrombotic complications. The objective of the present work was to study using immunohistochemistry, the presence of platelets, monocytes/macrophages, and cell adhesion molecules (CD61, CD163, and CD54), in two stages of the atheromatous process. CF-1 mice fed a fat diet were used to obtain early stages of atheromatous process, denominated early stage of atherosclerosis, and ApoE−/−mice fed a fat diet were used to observe advanced stages of atherosclerosis. The CF-1 mice model presented immunostaining on endothelial surface for all three markers studied; the advanced atherosclerosis model in ApoE−/−mice also presented granular immunostaining on lesion thickness, for the same markers. These results suggest that platelets participate in atheromatous process from early stages to advance d stages. High fat diet induces adhesion of platelets to endothelial cellsin vivo. These findings support studying the participation of platelets in the formation of atheromatous plate.

scholarly journals Palate: The App for Finding Restaurant Faster

2021 ◽  
Author(s):  
Patrick Gioseffi
Keyword(s):  
Mobile Application ◽  
Early Stage ◽  
Design Principles ◽  
Major Research ◽  
Research Project ◽  
On Demand ◽  
Current Process ◽  
The Moment ◽  
The Impact

This Major Research Project (MRP) aims to investigate the impact of the on-demand economy, millennials’ digital habits, and the emergence of super apps on the restaurant-finding process. Currently, restaurant-goers are presented with multiple specialty applications to complete different tasks when evaluating restaurants. The current process of deciding on a restaurant is both time-consuming and inefficient. This project aims to propose a solution to this problem in the form of an early-stage super app called Palate. Palate is a mobile application that aims to streamline the process of discovering restaurants from the moment a restaurant-goer begins their search to the moment they confirm a reservation. This paper will discuss design principles, theories of the on-demand economy, restaurant-goers digital habits, super apps and the rationale for designing a restaurant super app interface.

scholarly journals Pengaruh Variasi Radius-Dalam Rim Terhadap Pengurangan Massa dan Momen Inersia Massa Dengan Studi Kasus Benda Putar Berdiameter 10 cm

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Eka Taufiq Firmansjah
Keyword(s):  
Outer Radius ◽  
Moment Of Inertia ◽  
Mass Reduction ◽  
Inner Radius ◽  
Mass Moment ◽  
Mass Moment Of Inertia ◽  
Machine Elements ◽  
The Moment ◽  
The Masses

ABSTRAK Mesin terdiri dari sekumpulan elemen mesin yang diam dan bergerak. Elemen mesin yang bergerak dengan gerakan berputar disebut benda putar. Pada beberapa kasus seringkali diinginkan pengurangan massa dari benda putar tersebut untuk alasan ekonomis, biasanya untuk elemen mesin yag diproduksi massal. Namun pengurangan massa berakibat pada pengurangan momen inersia massa benda putar bersangkutan. Jika tuntutan perancangan tidak mempermasalahkan perubahan tersebut, maka pengurangan massa tidak menjadi masalah. Namun jika momen inersia massa tidak boleh terlalu rendah, maka harus dicari kompromi dimana pengurangan massa sebesar-besarnya namun penurunan momen inersia massa sekecil-kecilnya. Pada penelitian ini dilakukan studi kasus terhadap benda putar berjari- jari 10 cm jari-jari dalam hub 2 cm dan jari-jari luar hub 4 cm. Jumlah jari-jari ada 4 dengan lebar 1 cm dan tebal benda putar 0,5 cm. Variasi pengurangan massa dilakukan dengan memvariasikan jari-jari- dalam rim. Untuk tiap variasi, dilakukan perhitungan untuk mendapatkan jumlah massa yang dapat dikurangi dan momen inersia massa dari benda putar. Ternyata pada nilai jari-jari dalam tertentu, dapat diperoleh nilai kompromi dari permasalahan diatas. Kata kunci: benda putar, penghematan bahan, momen inersia massa.  ABSTRACT Machine consists of a set of machine elements that still and moving. Machine elements that move in a circular motion called rotary object. In some cases it is often desirable reduction in the mass of the rotating object for economic reasons, usually for a mass production of machine elements. But the mass reduction results in a reduction in moment of inertia of the mass. If the demands of the design allow this decrease of moment of inertia, mass reduction is not a problem. But if the moment of inertia of the masses should not be too low, it must find a compromise in which a mass reduction profusely but the decrease in the mass moment of inertia of the smallest. In this research conducted a case study of rotating element radius of 10 cm, radius of the hub 2 cm and outer radius hub 4 cm. The number of spoke are 4 with a width of 1 cm and uniform thickness 0.5 cm all over rotating element. Variations mass reduction is done by varying the inner radius of the rim. For each variation, calculation is performed to obtain the amount of mass that can be reduced and the mass moment of inertia of the rotating object. It turned out that in the certain value of inner radius of the rim in particular, can compromise the values obtained from the above problem. Keywords: rotating element, reducing material, mass moment of inertia.

scholarly journals CEE LABOUR MARKETS – HOMOGENEITY OR DIVERSITY?

2021 ◽  
Vol 0 (0) ◽  
pp. 1-17
Author(s):  
Ewa Rollnik-Sadowska ◽  
Marta Jarocka
Keyword(s):  
Labour Market ◽  
Initial Point ◽  
Multiple Regression Model ◽  
Labour Markets ◽  
Labour Market Situation ◽  
Second Stage ◽  
Market Situation ◽  
The Moment ◽  
Two Stages ◽  
The Eu

The aim of the article is to assess real changes taking place on CEE labour markets over the last fifteen years, taking into account as the initial point of analysis – 2004, i.e. the moment of extension of the EU by the first CEE countries and as a final point of analysis – 2019. The research was conducted in two stages. The authors made comparisons with the use of the TOPSIS method, which allowed for creating rankings of CEE countries in terms of labour market situation in the analysed years. The second stage of the study involved the analysis of relations between employment and GDP by an estimation of the multiple regression model. The conducted analysis proves that CEE countries are diversified when it comes to the labour market situation. These countries are also characterized by significant dynamics of changes in the labour market.

scholarly journals Neurosecretory protein GL-induced fat accumulation is accompanied by repressing the immune-inflammatory response in the adipose tissue of mice

2021 ◽  
Author(s):  
Keisuke Fukumura ◽  
Yuki Narimatsu ◽  
Eiko Iwakoshi-Ukena ◽  
Megumi Furumitsu ◽  
Hidemasa Bono ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Inflammatory Responses ◽  
Early Stage ◽  
Secretory Protein ◽  
Short Term ◽  
Fat Accumulation ◽  
Cholesterol Levels ◽  
Brown Adipose ◽  
Sequencing Technique ◽  
The Masses

AbstractWe have recently identified neurosecretory protein GL (NPGL), a small secretory protein expressed in the vertebrate hypothalamus, as an orexigenic factor with remarkable fat accumulation by overexpression of the NPGL precursor gene (Npgl) for two months. In the present study, we analyzed the effects of short-term Npgl overexpression for 18 days as the early stage of obesity to address the mechanisms underlying obese-like phenotype. Similar to previous studies, short-term Npgl overexpression stimulated food intake and fat accumulation in the white adipose tissues (WAT), whereas the masses of the brown adipose tissue, testis, liver, heart, and muscle remained unchanged. In addition, we observed increased blood insulin and leptin levels due to Npgl overexpression, while little changes were induced in blood glucose, free fatty acids, triglyceride, and cholesterol levels. Furthermore, transcriptome analysis of the inguinal WAT using RNA-sequencing technique revealed that overexpression of Npgl upregulated the genes involved in cytoskeleton regulation, whereas it decreased those involved in immune-inflammatory responses. These results suggest that NPGL plays a crucial role in enlarging adipocytes and suppressing inflammation to avoid metabolic abnormalities, eventually contributing to accelerating energy storage.

scholarly journals Processing Speaker-Specific Information in Two Stages During the Interpretation of Referential Precedents

2020 ◽  
Vol 11 ◽  
Author(s):  
Edmundo Kronmüller ◽  
Ernesto Guerra
Keyword(s):  
Language Processing ◽  
Perspective Taking ◽  
Referential Communication ◽  
Specific Information ◽  
Retrieval Process ◽  
Cognitive Mechanisms ◽  
Two Stage ◽  
Communication Task ◽  
The Moment ◽  
Two Stages

To reduce ambiguity across a conversation, interlocutors reach temporary conventions or referential precedents on how to refer to an entity. Despite their central role in communication, the cognitive underpinnings of the interpretation of precedents remain unclear, specifically the role and mechanisms by which information related to the speaker is integrated. We contrast predictions of one-stage, original two-stage, and extended two-stage models for the processing of speaker information and provide evidence favoring the latter: we show that both stages are sensitive to speaker-specific information. Using an experimental paradigm based on visual-world eye tracking in the context of a referential communication task, we look at the moment-by-moment interpretation of precedents and focus on the temporal profile of the influence of the speaker and linguistic information when facing ambiguity. We find two clearly identifiable moments where speaker-specific information has its effects on reference resolution. We conclude that these two stages reflect two distinct cognitive mechanisms, with different timings, and rely on different representational formats for encoding and accessing information about the speaker: a cue-driven memory retrieval process that mediates language processing and an inferential mechanism based on perspective-taking abilities.

scholarly journals The Lightship Mass Calculation Model Of A Merchant Ship By Empirical Methods

2021 ◽  
Vol 93 (6s) ◽  
pp. 73-87
Author(s):  
Vedran Slapničar ◽  
◽  
Katarina Zadro ◽  
Viktor Ložar ◽  
Ivo Ćatipović ◽  
...  
Keyword(s):  
Least Squares Method ◽  
Early Stage ◽  
Calculation Model ◽  
Ship Design ◽  
Empirical Methods ◽  
Construction Costs ◽  
Hull Steel ◽  
The One ◽  
The Masses ◽  
Preliminary Phase

Estimating the lightship mass is an important factor in the early stage of ship design given its impact on shipbuilding costs. The mass of the hull and equipment, as well as its distribution, affects the hull strength, deadweight, and stability of the ship. Furthermore, a good estimate of the lightship mass in the preliminary phase is very important for defining the construction costs as accurately as possible. As the time available to the designer in the conceptual or preliminary phase of ship design is often limited, the methods used to determine the lightship mass must be reliable, fast, and effective. The paper presents and analyzes methods for estimating the lightship mass that are based on empirical data of built ships. Several empirical methods were combined and calibrated to establish the least-squares method which combination gives the value of the lightship mass closest to the one given in the collected database for three types of merchant ships: tankers, bulk carriers, and container ships. The paper presents the results of the calculations of the masses of hull steel, outfitting, machinery, and superstructure. It can be concluded that the presented model for all three types of merchant ships gives satisfactory results.

scholarly journals CARE AND TREATMENT OF NEONATAL JOLT IN NEW BORN CHILDREN

2018 ◽  
Vol 28 (2) ◽  
pp. 649-656
Author(s):  
Gordana Panova ◽  
Elena Geleva
Keyword(s):  
General Hospital ◽  
Neonatal Jaundice ◽  
Early Recognition ◽  
Early Stage ◽  
Early Assessment ◽  
Medical Needs ◽  
Yellow Coloration ◽  
Newborn Child ◽  
Independent Life ◽  
The Moment

From the moment we were born, we form a new period of our life. The fetus, whom our mothers carefully nurture throughout the whole pregnancy enters the newborn period. The newborn child has medical needs that are needed to help with this important adaptive period, a team of neonatologists is processing the primary reanimation and postpartal nurture of every child.The quick evaluation of the condition of a newborn child with eventual reanimation procedure is very important to reduce the possible complications & reduce the pathological growth and development of the newborn. As part of that judgement is the condition of most common illness that affects an infant called jaundice, a yellow coloration of the skin caused by accumulation of bilirubin in the skin and the mucous membranes. The birth of new life is a privilege at the gynecological-obstetrician department.Given the importance of early assessment and right primarily reanimation of a newborn, the main objectives of labor are:- What causes the neonatal jaundice at a newborn and the frequency and risk factors of appearance- Following and therapy of neonatal jaundice at an early stage- Determination how serious the jaundice is affecting the newborn- The percentage of infants affected by neonatal jaundice, and possible outcome.Material and methods:In this paper we have processed the data of gynecological- obstetrician department of JZU General Hospital- Kumanovo. The period of last year’s 2017 data is covered. As a material evidence we used the registers of newborn babies from the gynecological- obstetrician department of JZU General hospital- Kumanovo throughout the whole year and for processing are taken the medical data of condition in the moment of birth, following the condition of the newborn babies while they are still under supervision of the gynecological- obstetrician department & regular frequent examinations.Results:In total the results of newborn babies in the past year (2017) is 1378, where there are taken early borns and term born babies. Amongst them there are prevented conditions of neonatal jaundice at 58 kids, approximately 4,21% of the total number of newborn babies in 2017,from which 50 newborn babies are born on time & 8 are prematurely born.Conclusion:A necessity is the early recognition of all the causes that could lead to need of primary measures, especially after the birth and the first few weeks when there can be preventive measures for overcoming the occurrence of neonatal jaundice & help the fetus readily start the independent life.

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