A note on measurements of Onsager coefficients in maple petioles and maple woody xylem by electroosmotic techniques

1970 ◽  
Vol 48 (6) ◽  
pp. 1289-1292 ◽  
Author(s):  
D. J. Ursino ◽  
D. S. Fensom
Keyword(s):  
Acer Saccharum ◽  
Specific Conductivity ◽  
Growing Season ◽  
Phloem Transport ◽  
The Other ◽  
Plant Tissues ◽  
A Value ◽  
Other Hand

Measurements on petioles and on 2- and 4-year old xylem of Acer saccharum have shown that the specific conductivity (LEE) measured after they were soaked in 10−4 N KCl was about 2 × 10−4 ohm−1 cm−1 and did not change significantly through the growing season in these plant tissues. On the other hand the electrokinetic coefficient (LPE) varied seasonally in the petioles with a value of about 3 × 10−6 in spring and 3 × 10−5 cm2 s−1 volt−1 in summer. The electrokinetic coefficient in the woody xylem measured about 6 × 10−5 cm2 s−1 volt−1. From the values of these Onsager coefficients the contribution of electroosmosis to phloem transport would seem to be negligible in these cut sections.

scholarly journals Immigration, Humanity, and Morality

2019 ◽  
Vol 2 (1) ◽  
pp. 21-33 ◽  
Author(s):  
Sunday Adeniyi Fasoro
Keyword(s):  
Political Theory ◽  
The Other ◽  
Moral Principles ◽  
A Value ◽  
The Earth ◽  
Other Hand ◽  
Common Ownership ◽  
Vulnerable People ◽  
The Common ◽  
The One

AbstractThe trend toward the concept of humanity in political theory has arisen largely as a reaction against the mistreatment of vulnerable people such as immigrants. The issue of immigrants’ vulnerability has led political thinkers to ponder on how to apply the principle of humanity to the question of the treatment of immigrants. I would like to address this matter by examining two questions: what is humanity, is it a value property, or a virtue? Does it really matter if the means by which an immigrant immigrates is demeaning to his own humanity as a person? The most common or intuitive reply to these questions would probably be: ‘humanity’ is simply a value-bestowing property, so regardless of immigrants’ actions they are owed respectful treatment. The aim of this paper is to emphasise instead that ‘humanity’ should be conceived as a virtue of actual commitment to act on moral principles. I explore three different meanings of humanity. First, I discuss ‘humanity’ as the common ownership of the earth. Second, I discuss ‘humanity’ as a value property. Third, I discuss humanity as a virtue of acting, on the one hand, with humanity, and on the other hand, on moral principles.

scholarly journals Predominant androgenic component in the stimulatory effect of dehydroepiandrosterone on bone mineral density in the rat

1998 ◽  
Vol 157 (3) ◽  
pp. 433-442 ◽  
Author(s):  
C Martel ◽  
A Sourla ◽  
G Pelletier ◽  
C Labrie ◽  
M Fournier ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Bone Mineral ◽  
Bone Volume ◽  
The Other ◽  
Female Rats ◽  
Trabecular Bone Volume ◽  
A Value ◽  
Other Hand ◽  
Dhea Treatment ◽  
Trabecular Number

In order to assess the relative roles of the androgenic and/or estrogenic components in the stimulatory effect of dehydroepiandrosterone (DHEA) on bone mineral content (BMC) and density (BMD), ovariectomized (OVX) female rats received DHEA administered alone or in combination with the antiandrogen flutamide (FLU) or the antiestrogen EM-800 for 12 months. We also evaluated, for comparison, the effect of estradiol (E2) and dihydrotestosterone (DHT) constantly released by Silastic implants as well as medroxyprogesterone acetate (MPA) released from poly(lactide-co-glycolide) microspheres. Femoral BMD was decreased by 11% 1 year after OVX, but treatment of OVX animals with DHEA increased BMD to a value 8% above that of intact animals. The administration of FLU reversed by 76% the stimulatory effect of DHEA on femoral BMD and completely prevented the stimulatory effect of DHEA on total body and lumbar spine BMD. Similar results were obtained for BMC. On the other hand, treatment with the antiestrogen EM-800 did not reduce the action of DHEA on BMD or BMC. At the doses used, MPA, E2 and DHT increased femoral BMD, but to a lesser degree than observed with DHEA. Bone histomorphometry measurements were also performed. While DHEA treatment partially reversed the marked inhibitory effect of OVX on the tibial trabecular bone volume, the administration of FLU inhibited by 51% (P < 0.01) the stimulatory effect of DHEA on this parameter. The addition of EM-800 to DHEA, on the other hand, increased trabecular bone volume to a value similar to that of intact controls. DHEA administration markedly increased trabecular number while causing a marked decrease in the intertrabecular area. The above stimulatory effect of DHEA on trabecular number was reversed by 54% (P < 0.01) by the administration of FLU, which also reversed by 29% the decrease in intertrabecular area caused by DHEA administration. On the other hand, the addition of EM-800, while further decreasing the intertrabecular space achieved by DHEA treatment, also led to a further increase in trabecular number to a value not significantly different from that of intact control animals, suggesting an additional effect of EM-800 over that achieved by DHEA. Treatment with DHEA caused a 4-fold stimulation of serum alkaline phosphatase, a marker of bone formation, while the urinary excretion of hydroxyproline, a marker of bone resorption, was decreased by DHEA treatment. Treatment with DHEA and DHEA + EM-800 decreased serum cholesterol levels by 22 and 65% respectively, while the other treatments had no significant effect on this parameter. The present data indicate that the potent stimulatory effect of DHEA on bone in the rat is mainly due to the local formation of androgens in bone cells and their intracrine action in osteoblasts.

scholarly journals EVIDENCE FOR A PHOTON MASS

2010 ◽  
Vol 19 (07) ◽  
pp. 1341-1347 ◽  
Author(s):  
B. G. SIDHARTH
Keyword(s):  
Power Spectrum ◽  
Gamma Rays ◽  
Time Lag ◽  
The Other ◽  
Photon Mass ◽  
The Past ◽  
A Value ◽  
Other Hand ◽  
Wmap Data

Recently Spavieri and Rodriguez had proposed a table top experiment using Aharanov–Bohm type effects to determine the mass of a photon and concluded that a value as small as 10-51 g is achievable. It is pointed out in this paper that this value is already much higher than latest experimental limits. Furthermore, the author's work over the past years has, on the other hand, indicated that the photon has a mass ~10-65 g = 10-33 eV . We point out in this papers that recent observations from three different viewpoints, which are not table top experiments, but rather the time lag in cosmic gamma rays with different frequencies, the observation of the spectra of blazars and an analysis of the CMB power spectrum from the WMAP data, all vindicate this conclusion and remarkably, this value.

scholarly journals SISTEM NILAI PELA SEBAGAI MODAL SOSIAL DALAM RANGKA PENGUATAN KEBANGSAAN PADA BASIS LOKAL DI MALUKU

2020 ◽  
Vol 2 (1) ◽  
pp. 11-28
Author(s):  
Max Maswekan
Keyword(s):  
Social Capital ◽  
Social Cohesion ◽  
Social System ◽  
Regional Level ◽  
The Other ◽  
Potential Conflict ◽  
Value System ◽  
A Value ◽  
Other Hand ◽  
The One

Indonesia is a pluralistic country (diverse) in terms of ethnicity, religion, culture, language and social system. This diversity is a blessing that is given as a potential wealth of the nation. On the one hand, this potential can be managed to strengthen nationality and people's welfare, but on the other hand, it can be a potential conflict that can weaken and even solve (disintegration) of nationalism if it is not managed properly. Indonesia has a variety of local wisdom as invaluable social capital. One of them is Pela in Maluku which has a value system that is capable of marching and strengthening (integration) nationalism. The Pela value system has at least four functions that are able to effectively integrate (social cohesion) and strengthen national potential at the local (regional) level, especially in Maluku.

Definition of Specific Impulse

1954 ◽  
Vol 58 (526) ◽  
pp. 728-728 ◽  
Author(s):  
F. W. Thorne
Keyword(s):  
Specific Impulse ◽  
The Other ◽  
A Value ◽  
Other Hand ◽  
Definition Of ◽  
Mass Definition

Your contributors on Specific Impulse in the May journal say, “ The mass definition, on the other hand, gives a value of specific impulse which varies according to the units used.“It must be realised that the value of a quantity cannot depend on the units chosen. To quote therefore the example on page 371 in gravitational units, namely: —

Can we Modify our Pleasures? A New Look at Kant on Pleasure in the Agreeable

2020 ◽  
Vol 25 (3) ◽  
pp. 365-388
Author(s):  
Erica A. Holberg
Keyword(s):  
Moral Values ◽  
Sharp Contrast ◽  
The Other ◽  
Moral Law ◽  
A Value ◽  
Other Hand ◽  
Moral Judgements ◽  
Realistic View ◽  
The One ◽  
Rational Direction

AbstractMany of us are all too familiar with the experience of taking pleasure in things we feel we ought not, and of finding it frustratingly hard to bring our pleasures into line with our moral judgements. As a value dualist, Kant draws a sharp contrast between the two sources of practical motivation: pleasure in the agreeable and respect for the moral law. His ethics might thus seem to be an unpromising source for help in thinking about how we can bring our agreeable pleasures into line with our moral values. But I argue that a careful reading of Kant’s texts reveals a helpfully realistic view about the extent to which we can modify our agreeable pleasures. On my interpretation, Kant shows us how to hold together two seemingly incompatible ideas: on the one hand, that pleasure in the agreeable is resistant to rational direction, and on the other hand, that we can cultivate these pleasures with a view to ethical self-transformation.

scholarly journals Experimental branch cooling increases foliar sugar and anthocyanin concentrations in sugar maple at the end of the growing season

2017 ◽  
Vol 47 (5) ◽  
pp. 696-701 ◽  
Author(s):  
Paul G. Schaberg ◽  
Paula F. Murakami ◽  
John R. Butnor ◽  
Gary J. Hawley
Keyword(s):  
Acer Saccharum ◽  
Sugar Maple ◽  
Color Change ◽  
Anthocyanin Biosynthesis ◽  
Growing Season ◽  
Phloem Transport ◽  
Landscape Scale ◽  
Induced Changes ◽  
Anthocyanin Production ◽  
Specific Sugar

Autumnal leaf anthocyanin expression is enhanced following exposure to a variety of environmental stresses and may represent an adaptive benefit of protecting leaves from those stresses, thereby allowing for prolonged sugar and nutrient resorption. Past work has shown that experimentally induced sugar accumulations following branch girdling triggers anthocyanin biosynthesis. We hypothesized that reduced phloem transport at low autumnal temperatures may increase leaf sugar concentrations that stimulate anthocyanin production, resulting in enhanced tree- and landscape-scale color change. We used refrigerant-filled tubing to cool individual branches in a mature sugar maple (Acer saccharum Marsh.) tree to test whether phloem cooling would trigger foliar sugar accumulations and enhance anthocyanin biosynthesis. Cooling increased foliar sucrose, glucose, and fructose concentrations 2- to nearly 10-fold (depending on the specific sugar and sampling date) relative to controls and increased anthocyanin concentrations by approximately the same amount. Correlation analyses indicated a strong and steady positive relationship between anthocyanin and sugar concentrations, which was consistent with a mechanistic link between cooling-induced changes in these constituents. Tested here at the branch level, we propose that low temperature induced reductions in phloem transport may be responsible for increases in foliar sugars that trigger anthocyanin displays at grander scales.

scholarly journals „Nu e cazul să ne dăm ceea ce nu suntem”. Spre o înţelegere a comunismului prin Bandiţii de Vasile Ernu

2021 ◽  
Vol 4 (1) ◽  
pp. 141-159
Author(s):  
Iulia Stoichiţ
Keyword(s):  
The Other ◽  
Religious Fundamentalism ◽  
Communist Society ◽  
Totalitarian Regime ◽  
Religious People ◽  
A Value ◽  
Marginal Group ◽  
Other Hand ◽  
The World ◽  
The Way

“The Bandits”, Vasile Ernu’s second volume of his trilogy, the trilogy of marginal men, describes the world of thieves, of bandits, of criminality in a communist society, without the narrator ever becoming one of them. He is more of an adopted son, someone who has almost unmediated access to this world without suffering the repercussions of revealing that world’s secrets. This should not to be understood that he has total access to the bandits’ secrets, but that he is not viewed as a threat, even if he reveals more of this world than others. The narrator is accepted because he does his best to be himself and this is a value of utmost importance for this marginal group of people, others knowing and owning their identity, the type of narrative they tell about themselves. On the other hand, the narrator is himself a marginal man as well, considering the fact that he grew up  among religious people who were quite fundamentalists in their way of expressing this belief (but not in the way in which we picture today religious fundamentalism: bombing, Muslims, terror). Thus, this essay is meant as a study of one’s sense of identity when having to juggle with more identities, when having to evade (or even be subversive towards) the more pervasive, totalitarian regime in which these marginal men find themselves.

scholarly journals A New Explanation for the Conflict Between Constructivist and Objectivist Grounded Theory

2020 ◽  
Vol 19 ◽  
pp. 160940692093828
Author(s):  
Kerem Coşkun
Keyword(s):  
Grounded Theory ◽  
The Other ◽  
Constructivist Grounded Theory ◽  
Logical Operation ◽  
A Value ◽  
Naturalistic Approach ◽  
Other Hand

The purpose of this article is to produce a new explanation for the conflict between constructivist grounded theory and objectivist grounded theory. Grounded theory (GT) has drawn much attention because it enables qualitative researchers to produce theoretical explanations about what is going on. Since Glaser and Strauss invented the term “grounded theory,” there have been debates about what grounded theory is and what are its components. In this article, epistemological, ontological, and methodological beliefs about constructivist and objectivist grounded theory are explained and compared, and definitional analytical aspects of the two approaches are addressed by emphasizing their paradigmatic roots. As a result, it was concluded that objectivistic grounded theory is an agreement between positivism and the naturalistic approach advocating that researchers can be value laden but must stay as objective as possible. On the other hand, it is proposed that constructivist grounded theory is a value-laden logical operation in producing theoretical explanations.

Adaptation of an inoculum to 2,4,6-trichlorophenol biodegradation in an activated-sludge bioreactor

2000 ◽  
Vol 42 (5-6) ◽  
pp. 179-183 ◽  
Author(s):  
P. Olguin Lora ◽  
M. Sjölund ◽  
C. Tracol ◽  
J. Morvan
Keyword(s):  
Energy Source ◽  
Activated Sludge ◽  
Biomass Production ◽  
Removal Rate ◽  
Progressive Increase ◽  
The Other ◽  
Shock Load ◽  
Halogenated Compounds ◽  
A Value ◽  
Other Hand

The aim of this work is to study the acclimation of an activated sludge inoculum fed at a constant COD volumetric load, to a recalcitrant substrate: 2,4,6-TCP. Phenol was used as an inductive and energy-supplier co-substrate and was progressively replaced by TCP. A loss in TCP removal activity to a value of 40 and then 6% was the result of two events: a shock load due to the first TCP addition that had represented 5% of the COD volumetric load and a second shock achieved with a 100% TCP inlet. This last overload stage was characterized by the reduction of non-TCP halogenated compounds concentration in the reactor effluent. On the other hand, the progressive increase of TCP generated a loss in dehalogenation and mineralization activities while TCP removal rate remained high. A load of 11.3 mgCOD.g-1VSS.h-1 of TCP as sole carbon and energy source was achieved and was accompanied with a net biomass production.

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