scholarly journals Egg cannibalism by passion vine specialist Disonycha Chevrolat beetles (Coleoptera: Chrysomelidae: Galerucinae: Alticini)

2020 ◽  
Author(s):  
Colin R. Morrison ◽  
Wyatt Armstrong ◽  
Lawrence Gilbert
Keyword(s):  
Nutritional Ecology ◽  
The Other ◽  
First Report ◽  
Egg Cannibalism ◽  
Flea Beetles ◽  
Fourth Report ◽  
Herbivorous Species ◽  
Ecological Importance ◽  
Passion Vine

AbstractCannibalistic behavior is now recognized to be an important component of nutritional ecology in both carnivorous and herbivorous species, including many beetle families (Englert and Thomas 1970; Beaver 1974; Dickinson 1992; Bartlett 1987; Alabi et al. 2008). This habit was historically viewed by an incidental outcome of unnaturally crowded laboratory situations with little ecological importance (Fox 1975), but it is increasingly acknowledged that cannibalism represents a potentially advantageous behavior (Richardson et al. 2010). Here we report on multiple cases of egg cannibalism, or conspecific oophagy, by adults of two species of passion vine (Passiflora Linnaeus: Passifloraceae) specialist flea beetles in the genus Disonycha Chevrolat (Coleoptera: Chrysomelidae: Galerucinae: Alticini). This is the first report of egg cannibalism from the Galerucinae, and to our knowledge, only the fourth report of egg cannibalism by adults in the Chrysomelidae; the other three reports are of adult Chrysomelinae species eating conspecific eggs (Dickinson 1992; McCauley 1992; Schrod et al. 1996). We conclude this note with several questions raised by our observations, followed by a discussion that may contribute to explanations of this behavior.

Superconductive Properties of CsxRbyC60 (33K) - Isotope Effect -

1992 ◽  
Vol 247 ◽  
Author(s):  
T. W. Ebbesen ◽  
K. Tanigaki ◽  
S. Saito ◽  
J. Mizuki ◽  
J. S. Tsai ◽  
...  
Keyword(s):  
Fermi Level ◽  
Penetration Depth ◽  
Isotope Effect ◽  
Lattice Constant ◽  
Density Of States ◽  
Coherence Length ◽  
The Other ◽  
First Report ◽  
Electron Coupling

ABSTRACTThe surprisingly high Tc for the superconductivity of alkali doped C60 has spurred wide interest in understanding its mechanism [1–7]. We first report the superconductive properties of CsxRbyC60 which has a Tc as high as 33 K when x=2 and y=1 in the feed [4, 5]. SQUID measurements show that in this material the coherence length is 45 A and the penetration depth about 1, 800 A [5]. It has now been proven that the observed increase in the Tc with the size of the alkali dopant is due to the increase in the lattice constant [6]. This is most likely due to the changes in the density of states at the Fermi level. The other important parameter according to BSC theory is the phonon which mediates the electron-electron coupling. In the second part of this paper we present recent results which show that the Tc is indeed strongly influenced by this parameter [7]. The isotope effect is unexpectedly strong on the Tc.

scholarly journals Two Cases of Hepatic Mastocytoma in Sheep

1972 ◽  
Vol 9 (2) ◽  
pp. 159-163 ◽  
Author(s):  
A. C. Johnstone
Keyword(s):  
Lymph Node ◽  
The Other ◽  
First Report ◽  
Hepatic Neoplasia

Two mastocytomas of the liver of sheep are described. The specimens were obtained during a survey of hepatic neoplasia that was conducted on abattoir-slaughtered sheep. Although tissues other than the liver were not examined, both tumours had metastasised, one to the portohepatic lymph node, and the other intrahepatically. It is believed that this is the first report of mastocytoma in this species.

scholarly journals Some Peculiarities of Variable Optical Spectra of 11 Low-Redshift Quasars

1994 ◽  
Vol 159 ◽  
pp. 518-518
Author(s):  
I.I. Pronik
Keyword(s):  
Seyfert Galaxy ◽  
Optical Spectra ◽  
The Other ◽  
Bench Mark ◽  
Published Data ◽  
First Report ◽  
Ngc 1275 ◽  
Very High ◽  
Calibration Coefficients ◽  
The Continuum

The flux of narrow 5007 Å [OIII] forbidden line during last 20 years is accepted as a bench-mark for calibration of the continuum and broad-lines fluxes in AGN. But one can not get away from the problem of the forbidden lines variability in these objects. The first report were published by Bardin et al. (1967). Some of the results are revieved by V. Pronik, I. Pronik (1988, 1992). There were 4 years monitoring of [OIII] fluxes variability in the Seyfert galaxy NGC 1275 nucleus (Pronik et al., 1990). Now we reexamine the published data of W. Zheng et al. (1986, 1987, 1988), discussed earlier in supposition of forbidden lines constant in spectra of 11 low-redshifted QSOs. Maximal calibration coefficients adopted by W. Zheng et al. in supposition of [OIII] lines constant were in the interval 2.0–3.6. On the other hand the fluxes errors are about 15%. Disagreement is very high. This is one of the arguments in the forbidden lines variability Tightness.

scholarly journals Karyotype analysis with orcein and CMA in two species of Alocasia (Schott) G. Don (Araceae)

1970 ◽  
Vol 40 (1) ◽  
pp. 53-56 ◽  
Author(s):  
Syeda Sharmeen Sultana ◽  
Hosne Ara ◽  
Sheikh Shamimul Alam
Keyword(s):  
Chromosome Number ◽  
Key Words ◽  
Karyotype Analysis ◽  
Chromosome Complement ◽  
Taxonomic Status ◽  
The Other ◽  
First Report ◽  
Total Length ◽  
Internet Information ◽  
Chromosomal Length

Alocasia fallax Schott and A. odora (Roxb.) Koch (Araceae) were investigated cytogenetically to confirm their taxonomic status. There is no report of 2n chromosome number for A. fallax in the available literature and internet information. Therefore the 2n chromosome number (2n = 28) found in this study is probably the first report for A. fallax. Alocasia odora showed exactly double 2n chromosome number (2n = 56) from A. fallax. In addition to chromosome number, the other karyotypic features of A. odora were exactly double for that of A. fallax. The centromeric formulae of A. fallax was 24 m + 4 sm whereas it is just double in A. odora. Total length of 2n chromosome complement of A. odora (62.58 μm) was almost double to A. fallax. The range of chromosomal length of the two species was almost same. Moreover, A. odora plant is much taller than A. fallax. All of these data suggests that A. odora might be an autotetraploid of A. fallax which in course of evolution had undergone some changes in GC-rich repeats. Key words: Alocasia; CMA; Karyotype analysis DOI: http://dx.doi.org/10.3329/bjb.v40i1.7998 Bangladesh J. Bot. 40(1): 53-56, 2011 (June)

scholarly journals Successful Treatment of Transient Central Diabetes Insipidus following Traumatic Brain Injury in a Dog

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Catriona Croton ◽  
Sarah Purcell ◽  
Andrea Schoep ◽  
Mark Haworth
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Diabetes Insipidus ◽  
Successful Treatment ◽  
Serum Sodium ◽  
Rapid Onset ◽  
Central Diabetes Insipidus ◽  
The Other ◽  
Clinical Progression ◽  
First Report

An 11-year-old female spayed Maltese presented comatose, half an hour after vehicular trauma, and was treated for traumatic brain injury and pulmonary contusions. The dog developed severe hypernatremia within six hours of presentation, which responded poorly to the administration of five percent dextrose in water. As central diabetes insipidus was suspected, desmopressin was trialled and resolution of hypernatremia was achieved six days later. Transient trauma-induced central diabetes insipidus has been described previously in two dogs; in the first, serum sodium concentrations were evaluated three days after injury and the other developed hypernatremia seven days after injury. To the authors’ knowledge, this is the first report of rapid onset, transient, and trauma-induced central diabetes insipidus in a dog that encompasses the complete clinical progression of the syndrome from shortly after injury through to resolution.

Morfologia dei polinucleati neutrofili studiata con il metodo gemellare Nota prima: La formula di Arneth

1956 ◽  
Vol 5 (2) ◽  
pp. 125-137
Author(s):  
G. Torrioli Riggio ◽  
L. Reggiani
Keyword(s):  
The Other ◽  
First Report ◽  
Group I ◽  
Mz Twins ◽  
The Relationship ◽  
Disease Factor

SUMMARYIn this first report the Authors take into consideration only the meaning of group I of Arneth's formula, utilizing the data of the zoo findings on pairs of DZ, of healthy MZ and diseased MZ Twins. They find, in group I, a moderate influence of the disease factor.These findings are believed to be in agreement with Pappenheim's theory, according to which the relationship between the first group of Arneth's formula and the following groups would be lined more closely to a maturative factor influenced by physiopathological conditions than to a cellular constitutional, which is present, though.The genie factor dominate instead in the other four groups, as will be amply shown in the next report.

Cancer cells uptake porphyrinsviaheme carrier protein 1

2013 ◽  
Vol 17 (01n02) ◽  
pp. 36-43 ◽  
Author(s):  
Kazuhiro Hiyama ◽  
Hirofumi Matsui ◽  
Masato Tamura ◽  
Osamu Shimokawa ◽  
Mariko Hiyama ◽  
...  
Keyword(s):  
Laser Beam ◽  
Cancer Cells ◽  
The Other ◽  
Carrier Protein ◽  
Hematoporphyrin Derivative ◽  
Lower Intensity ◽  
First Report ◽  
Over Expression ◽  
Other Hand ◽  
Eximer Laser

Although exogenous porphyrin accumulation in cancer cells is important for the success of photodynamic therapies, the mechanism is not clear. We hypothesized that a newly reported transporter, heme carrier protein 1 (HCP1), is highly expressed in cancer cells, and transports porphyrins into the cells. We investigated the following three unknowns: whether cancer cells take up hematoporphyrin derivative via HCP1, whether HCP1 is involved in photodynamic therapies, and whether cancer cells highly express HCP1. First, when HCP1-overexpressed cells were treated with hematoporphyrin derivative and then exposed to an eximer laser beam, they emitted a significantly higher intensity of hematoporphyrin derivative fluorescence and became more susceptible to the laser beam than control. Second, when three other types of cancer cells with silenced HCP1 were treated with hematoporphyrin derivative and then exposed to the laser beam, they emitted a significantly lower intensity of hematoporphyrin derivative fluorescence. Third, non-cancer cells slightly expressed HCP1; on the other hand, the three other types of cancer cells clearly expressed HCP1. These results indicated that cancer cells uptake hematoporphyrin derivative via HCP1 and over-expression of HCP1 increases the efficacy of photodynamic therapies by increasing porphyrin accumulation in the cells. This is the first report about a transporter of porphyrin in cancer cells.

The Observations of Paramagnetic Centers in Tellurite Glasses

1994 ◽  
Vol 373 ◽  
Author(s):  
J.D. Prohaska ◽  
J. Li ◽  
S. Kannan ◽  
E. Snitzer ◽  
J.S. Wang ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Room Temperature ◽  
The Other ◽  
Tellurite Glasses ◽  
Hole Center ◽  
Paramagnetic Centers ◽  
First Report ◽  
Esr Spectrum ◽  
Radiation Induced

AbstractThis is the first report of ESR observations of three distinct paramagnetic centers in TeO29 glasses. One center is intrinsic to the glass and the other two are induced by KrFexcimer-laser radiation. The intrinsic center with a broad ESR spectrum is tentatively identified as an oxygen-associated hole center. One radiation-induced center fades slowly at room temperature; its proposed structure is that of an electron trapped in a diffuse orbital associated with a modifier ion. The other radiation-induced center is stable at room temperature and corresponds to the Vo· center observed in crystalline paratellurite.

First report of neurotoxic effect of the cyanobacterium Cylindrospermopsis raciborskii on the motility of trematode metacercariae

2017 ◽  
Vol 92 (2) ◽  
pp. 244-249 ◽  
Author(s):  
K.C. Lopes ◽  
A.S. Ferrão-Filho ◽  
E.G.N. Santos ◽  
C.P. Santos
Keyword(s):  
Crude Extract ◽  
The Other ◽  
Fish Parasites ◽  
Cylindrospermopsis Raciborskii ◽  
Enzyme Linked Immunosorbent Assay ◽  
Clean Water ◽  
Fish Parasite ◽  
Neurotoxic Effect ◽  
First Report ◽  
Detection And Quantification

AbstractCylindrospermopsis raciborskii (Woloszynska) is a photosynthetic cyanobacterium that can produce cytotoxic (cylindrospermopsin) and neurotoxic cyanotoxins (saxitoxins). In Brazil the strains of C. raciborskii are reported to produce only saxitoxins (STX) and their effect on fish parasites has not been tested to date. The fish Poecilia vivipara Bloch and Schneider is a common host for the trematode Pygidiopsis macrostomum Travassos off the coast of Rio de Janeiro, and this fish–parasite interaction is a model for behavioural and ecotoxicological studies. The aim of this work was to evaluate the motility of metacercariae of P. macrostomum from P. vivipara exposed to 40 mg l−1 and 400 mg l−1 of crude lyophilized extract of the cyanobacterium C. raciborskii (CYRF-01) for 48 h. The fish were separated into groups of ten individuals and, after exposure, five fish from each group were dissected for counting and checking the motility of metacercariae. The other five fish were dissected after 48 h in clean water. The detection and quantification of STX in the solutions of cyanobacteria, and the gills and guts of fish, were performed by an enzyme-linked immunosorbent assay. The crude extract of C. raciborskii caused temporary paralysis in metacercariae of P. macrostomum after exposure of fish to both concentrations, and the motility recovered after the fish were kept for 48 h in clean water. STX was detected in the guts and gills of all fish analysed, suggesting that this toxin is involved in the paralysis of metacercariae. This is the first report on the action of neurotoxins in metacercariae of fish.

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