65,878 research outputs found
Comptonization of the cosmic microwave background by relativistic plasma
No full textWe investigate the spectral distortion of the cosmic microwave background (CMB) caused by relativistic plasma. Within the Thomson regime, an exact analytic expression for the photon scattering kernel of a momentum power-law electron distribution is given. The ultra-relativistic Sunyaev-Zeldovich (SZ) decrement measures the electron number and not the energy content. On the other hand, the relativistic SZ increment at higher frequencies depends strongly on the spectral shape of the electrons. We calculate the expected Comptonization due to the energy release of radio galaxies, which we estimate to be 3 × 1066 erg Gpc-3. We investigate Comptonization from (a) the part of the released energy which is thermalized and (b) the relativistic, remnant radio plasma, which may form a second, relativistic phase in the inter galactic medium, nearly unobservable for present day instruments (presence of so called 'radio ghosts'). We find a thermal Comptonization parameter due to (a) of y = 10-6 and (b) an optical depth of relativistic electrons in old radio plasma of τrel < 10-7. If a substantial fraction of the volume of clusters of galaxies is filled with such old radio plasma the SZ effect based determination of the Hubble constant is biased to lower values. Finally, it is shown that a supra-thermal population of electrons in the Coma cluster would produce a signature in the Wien-tail of the CMB, which is marginally detectable with a multifrequency measurement by the Planck satellite. Such a population is expected to exist, since its bremsstrahlung would explain Coma's recently reported high energy X-ray excess
C. B. Kaiser to Horace Kephart, November 22, 1922
No full textIn a letter to Horace Kephart, November 22, 1922, C. H. Kaiser of Tatelec corrects Kephart’s belief that small quantities of Tatelec treated cloth are not procurable, but that in fact, any amount of Tatelec cloth may be purchased by individuals.4/
TATE ELECTROLYTIC TEXTILE PROCESSES
INCORPORATED
TAlELfe
EXECUTIVE OFFICES
CLEMENT M.BURNHOME i/11 J_iL£iL> 45 east I7XB STREET
QENERAL AGENT TRADE MARK TELEPHONE
REO.US.PAT. OFF. STU YVESANT 4444
new york cable*:^:tatelec
CRANSTON, R.I.
November
t
'Twenty-Se cond,
1 9 2 S .
Mr. Horace Kephart*,
"Outing" Publishing Company,
47 West 47th Street,
Dear Mr. Kephart:
V.b noticed in your column ox
November, issue of "Outing" a query
signed by C.V.M., of St. Joseph Mo.,
and your reply to same.
May v/e correct your statement-
relative to small quantities of TAfaLEC
treated cloth not being procurable.
There are bo many individuals
who require only a few yards of TATTLEC
treated fabrics, that in our desire to
retain their enthusiasm : r the TAT3L3C
orocess, W9 have arranged a source of
supply that will enable any one to purchase a uantity, no matter how small,
of TAT3LDC treated fabrics. Our cotton
cloth department carries primarily for
sample purposes,up to 50 yards o: each
twelve or fifteen popular cotton cloths.
]?rom this sample line ,■ we are always-glad
to oblige interested individuals by allowing them to purchase a few yards of cloth.
In addition to this TATEL3C treated Zephyr
Oloth and Shelter %nt Duck and similar
fabrics may be obtained in small lots or
large lots from A.H. "enfield & Company, of
320 Broadway, Sew York City.
am
..'ith zindest personal regards, I
Yery truly yours,
¥ irajj yours, . y
Cotton Oloth Department.
A^OfȣSS ALL COMMUNICATIONS TO NEW YORK OFFIC
Kaiser-Frazer news story
No full textBy Gene M. 'Brown The Willys assets to be Tl1r Kats::l'-Frazer Corp. will buy by Kaiser Manufacturing Corp.• an nd Motors Inc., for existing Kaiser-Frazer subsidiary
estimated 62.300.000. lIccord-include net property. inventOries.
to an agreement announced plants and equipment. Not innight.
The acquisition makes cluded are c:lsh. securities. prethe
fourlh largest automo-payment and receivables. IH.: manufacturer in the world. The agreement gives Kaiser-Unde\' terms 01 the plan. Willys Frazer production facilities to mes a Kaiser-Frazer subsid-place studebaker in fourth posi1"'1. Edgar F. Kaiser. son 01 tion behind the big three auto
J. Kaiser. and president of manufacturers-General Motors
, called the trans-Ford and ChrYsler. Previously, as
tion the lan,cst of its kind in separate manufacturers. Kaiser
history of the automotive in-was ranked eighth and Willys
combmed total sales 01 ninth.
two companies are 1unning at Funds ' to finance the
rate of 600.000,000 II year. action camf-from varied sources.
assets are valued at Henry J. Kaiser Co. put up 250.000,000. 600,000, while 20,000,000 in a term loan ng Willys employment contracts Bank of America. National Trust
retain the services of prmci-and Savmgs Associl\tion.
1 officers for a minimum of two At the same ~t1me, Mr.
Ir.. "provided they render satis-reported that 11is company's
c ')ry ser.'ice," to the Reconstruction Finance
Ward ,\1. Canaday has been Corp. would be reduced. The?m:ine components. aircraft forg to remain as president and R. F. C. had lent Kaiser-Frazel,mgs and aircraft landing gear., n "f Willy!; Motors Coi·p., 48,417,000 . 11<; of Feb. 28. A cashrlane>' ; th F'a Irc 11 -eSI.
.' e 1 'ld d I,UO~ldH\IY. _ aymcnt of $15,OOO.00u be 119-F cargo planes; Wright
":i91 de to the R. F. C. to reduce thc nautical-designed R-130(} Mr. Kaiser said. engines, sectiom for the La.p.khee"'.' P2V-5 Neptune Bomber, e1p('tl'lln
Kaisci ~mphaslzed that thC\eqUiPment. components ase. Will m no way alter the Boeing B-52A and oth'er t mdepedent operations ofIitems.
two companies. All that will Ward , ... Ca d
t h . , \ .VL. na a~' assured
, e said. I~ mutual purchas-holders and th W·II I .
·l· . f ' e I vs abO!
tcr U tI IzatlOn 0 tools and that "the manufactu'I' d Ir" m .. . .., 'lIb'e carned
Uloment and .,a, mgs ' 0\ el-Wlllv· pI'oducls . . WI e an sa e unmterruptedly." immediate l'rsult of the Stateme~t be d
.'11 b . tl y ana ay
t \II em·le com-:\1[' C ' .
tal structure As soon . I. anaday said the main
. .. son for sal f W'l
stockholders approve the f . e 0 I lys was a which they are ('xpected to 0 ,~aPltal for expansion.
. Wlllys-Overl nd" h
t a special meeting April 24. "has m' a .. e reporteser-Frazer Corp. will have total prod t~de substantlfll progress assets of nearly a quarter of a largeUCl ·O!~tnd sa.les .m the face
billion dollars. . ,111: Y caPltahzed compt
.• < • tlOn .and can normally expect Wllh s as. ets to bc purchased m-contmue to operate on an d ude plants in Toledo; "I[ay\\'ood. ing scale. ascen
".; A.nderson, lr;d., and Pon-"However. although the ::\Ilch. Foreign as~cmbly value has steadily increased. es .of the company are dIrectors recognize that,
tlng 111 BelgIUm, the Nether-of requirements for Denmark. India. Ireland. working capital. inherent in la of South Africa, Indonesia. volume production, and for 0, Australia lind Brazil. creased capital for Impi'ovempl1t< I Kaiser adds its own,rlomcstic and additIOns to plant and mach
• facilities to the Willvs and new tools, commonoperatrs its main plant in holders .have not had income Run. Mich .. and has others cause Willys-Oyerland has not
Delroit and Dowap,iac, ,Mich.; bce~ able to pay dividends." adyside. Ohio; San Leandro and . :r.::alser Manufacturing. the cllmond, Calif.; and Na~hua sldiary that Will purchase
H.-as well' as in Holland: has agr~ed to set aside
I. Japan and :'-1exiro. cent of Its earnml2's befo]
. . to retIre the loan made by Both In Defense Work America. While the two companirs will Willys \\'as formed earlv te independently. purchase century by thc latc J ohn N. illys gives Kaiser-Frazer a The Willys Americar was the
line 'of automobiles and standard passenger vehicle it vehicles. It can sell the duced until it made the Aero J and Jeep in the lo\\,-last year.
fields; it has the expensive Kalser-Fra;o:er was formed the ujJper-middle price World Wa~ II by indust and a medium-priced Aero H~l1lY J. Kaiser a;:!.d former Chrys
s. The Jeep station wagons Ie: a~d Wil!ys p;ecut!ve John tho Jeep give the company a FlazeL
1mI' of utility vehiclrs. Will) s-Overland will l'ralize an
. . estimated 517 a -hare on'll 2795 compames are hel\\'i,IY in-I,04 sllarcs' of co~mm ts k' .in
def .. . . . on S oC out
Ih J rnse :' Ol k. Willys slandinlt'. Rumors of thp pendiTIlZ: e , eep flS "rll as a Wide deal spnt Willys stock with
Natural and semisynthetic analogues of manadoperoxide B reveal new structural requirements for trypanocidal activity
Get PDFChemical analysis of the Indonesian sponge Plakortis cfr. lita afforded two new analogues of the potent trypanocidal agent manadoperoxide B (1), namely 12-isomanadoperoxide B (2) and manadoperoxidic acid B (3). These compounds were isolated along with a new short chain dicarboxylate monoester (4), bearing some interesting relationships with the polyketide endoperoxides found in this sponge. Some semi-synthetic analogues of manadoperoxide B (6-8) were prepared and evaluated for antitrypanosomal activity and cytotoxicity. These studies revealed crucial structure-activity relationships that should be taken into account in the design of optimized and simplified endoperoxyketal trypanocidal agents
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Reclamation of exploration disturbances at Kaiser Resources Limited, Sparwood, B. C.
No full textSince the formation of the Exploration-Reclamation Section of the
Environmental Services Department in 1974, Kaiser Resources
Limited has carried out an intensive program of reclamation on
land and watercourses affected by past and ongoing coal
exploration activities. To date, 277 acres of land have been
reclaimed. This includes exploration roads, trenches, seam
traces, test pits, drill sites, adits, slide areas and other
related disturbances.
To accomplish this work, a number of innovative techniques are
utilized including terracing of steep dump slopes, pre-logging of
exploration roads, slash disposal using a portable woodchipping
machine and total removal of adit refuse. A number of other
techniques and refinements are still in the research and
development stages.
A system of pre-planning and monitoring of ongoing exploration
work has also been used effectively. This system reduces damage to
environmentally sensitive areas and virtually eliminates
unnecessary disturbance.
R.Berdusco’s presentation was in the form of slides not
suitable to written reproduction.Non UBCUnreviewedOthe
Radiocarbon time scale calibration using tree rings. Contribution of French subfossil treering chronoi ogifs at barriers river (Southern French Alps)
No full textRadiocarbon time scale calibration is based on dated absolute chronologies. River bank incision in the Barbiers River (Moyenne Durance, Southern French Alps) reveals numerous lateglacial subfossil Scots pines. Trunks are dated at the end of the Allcröd and the beginning of Younger Dryas. Dendrochronological analyses allow building two floating mean chronologies (BARNA and BARBB). Using wiggle matching method, these chronologies fill the gap between absolute European chronology (with end at 12594 cal. BP, Schaub, 2008a; Hua et al, 2009) and the long Swiss floating chronology (Kaiser et al., 2010). Thereby, a continuous radiocarbon timeframe is available until 14300 cal. BP. Unfortunately, French and Swiss chronologies are not cross-dated
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
Get PDFThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
Get PDFAn analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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