804 research outputs found
THE ANATOMY OF FAVORINUS JAPONICUS BABA (NUDIBRANCHIA-EOLIDOIDEA)
No full textFavorinus GRAY, 1850 is a splendid genus, the distinctive characters of which were introduced in parts by ALDER & HANCOCK, 1855, and somewhat more effectively by ODHNER, 1939 (see also MACNAE, 1954a, pp. 17-19). Eolis alba A. & H., 1844, Atlantic, forms the type of the genus. A series of species were added to this genus by the senior author (F. pacificus BABA, 1937; F. japonicus BABA, 1949; F. perfoliatus BABA, 1949; and F. mirabilis BABA, 1955), and it was revealed that the rhinophores in Favorinus are either simple, or bulbed, or even perfoliated according to different species. Here F. japonicus BABA was taken up for special study in anatomy, with the hope to understand the various genetic features more profoundly than before. Apparently this species is one of those nearest to the type of the genus, particularly in having bulbs on the mid-length of the rhinophores
Kajian geokimia konkresi dan hubungannya dengan pembentukkan bauksit di kawasan Kuantan
No full textProses luluhawa kimia pada batuan basalt di kawasan Kuantan telah menghasilkan konkresi.
Sebanyak 21 sampel konkresi tersebut yang diambil daripada 5 profil luluhawa telah dianalis kandungan
unsur major dan unsur surih. Keputusan menunjukkan Al2O a dan Fe2O3 merupakan unsur yang
melimpah dengan julat kepekatan masing-masing 32.35%-52.23% dan 14.96%-33.99%. Kepekatan TiO2
pula berjulat 3.030/0-6.62% manakala SiO2 berjulat bdl-8.07%. Unsur-unsur MgO, CaO, Na2O dan K2O
kebanyakannya di bawah had pengesanan (bdl). SiO2, FeO, MnO dan P2O5 masih boleh dikesan dalam
sampel tetapi kebanyakannya kurang daripada 1%. Kesimpulan yang boleh dibuat berdasarkan data
geokimia unsur major ialah konkresi tersebut adalah berkomposisi bauksit, dengan Al2O3, Fe2O3, SiO2
dan TiO2 sebagai unsur pembentuk mineral yang utama. Mineral yang melimpah dan dikesan mengikut
pertambahan kelimpahannya ialah gibsit, hematit, goetit, kaolinit dan kuarza. Korelasi negatif yang
kuat antara Fe2O3 lawan Al2O3 dan Al2O3 lawan TiO2 mencadangkan pertambahan Al2O3 membentuk
gibsit akan diikuti dengan pengurangan goetit dan anatas. Purata kepekatan masing-masing bagi Cr,
Zn, Ni dan Cu dalam konkresi ialah 611 ppm, 35 ppm, 35 ppm dan 28 ppm. Korelasi positif yang
ditunjukkan oleh plot graf Ni lawan Zn, Ni lawan Cu dan Zn lawan Cu dalam konkresi mencadangkan
asosiasi unsur-unsur tersebut dalam bauksit, terutamanya dalam mineral gibsit dan goetit. Cr
kemungkinan dijerap dalam gibsit, Fe-oksida dan kaolinit, dan juga boleh terdapat dalam kromit
The Baba Settlement
No full textThe unedited film footage shows the construction of the functionalist Baba settlement (Osada Baba), which was built in the area between the Church of St. Matthew (Kostel sv. Matěje) in Dejvice and the Baba ruins in 1932. The settlement's urban design was done by architect Pavel Janák. The construction site was visited by Prague Mayor Karel Baxa accompanied by architects Pavel Janák and Josef Fuchs, and publicist Stanislav Mojžíš-Lom. The segment includes wide shots of the construction site overlooking Prague and footage of the application of asphalt roofing on one of the houses
Geochemical characterization of volcanic soils from Tawau, Sabah
No full textThis paper discusses the geochemical characteristics of volcanic soils from Tawau, Sabah. The concentration of major elements and trace elements were determined using XRF analysis whereas mineralogical studies were carried out using XRD and SEM techniques. The results of the analyses show that SiO2 and Al2O3 are abundant in volcanic soils with concentrations from 43.06% - 67.96% and 12.55% - 29.92%, respectively. The concentration of Fe2O3 is next in abundance with the concentration of between 6.82% and 11.29%. The concentrations of CaO, K2O, MgO, Na2O, P2O5, and TiO2 are less than 5%. The high concentrations of SiO2 and Al2O3 are due to the high abundances of vermiculite and quartz as detected from XRD, while the high concentration of Fe2O3 is due to the presence of geothite. The average concentrations for Ba, V, Zr and Zn in volcanic soils are 341 ppm, 315 ppm, 239 ppm, and 124 ppm, respectively. The strong correlations between Zn and Al2O3, Fe2O3 and SiO2, indicate that Zn is being adsorbed by secondary minerals especially vermiculite and goethite
Heavy metals migration through the clayey soil from Telipok, Sabah
No full textThe migrations of heavy metals namely Cu, Cr, Ni, Pb and Zn through the soil from weathered rock of the
Crocker Formation in Telipok, Sabah were studied by means of leaching test. The leaching test conducted on soil
samples shows that most of the heavy metals are retained at the top part of the leaching columns i.e. at the depth of 1.0
cm. All of the heavy metals concentration decreased with the increasing depth within the soil profiles. The leachate
analysis indicated that all of the heavy metals except Pb achieved the breakthrough curves at the fIrst 4 pore volume (PV).
The breakthrough curve for Pb was achieved after 5 PV of leaching. From this study, based on the breakthrough curves
and mass balance calculation, it can be concluded that variation occurs during migration or mobilisation of heavy metals.
After leaching 7 PV of solution, the relative concentration (Ci/Co> of Cu, Cr, Ni, Pb and Zn are maintained at 0.90, 0.82,
0.98,0.94, and 0.80 respectively. The data obtained indicates that Zn has high mobility followed by Cu, Ni, Cr, and
Pb. At the end of the leaching test, the microstructural study showed the occurrence of micro cracks, high pore spaces
and the forming of channels at the top part of the columns. Whereas, the bottom part shows tight structure with low pore
spaces and low form of channels
Kajian perlakuan larut lesap Cu, Cr, Ni, Pb dan Zn dalam tanah laterit dari Ranau, Sabah
No full textPerlakuan larut resap logam-logam berat iaitu Cu, Cr, Ni, Pb, dan Zn dalam tanah laterit dikaji dengan
menggunakan ujian larut lesap. Sampellaterit dilarut lesapkan dengan asid pH 3.2 pada tekanan 15 psi. Kandungan
kelimpahan logam-Iogam berat dalam laterit dan cecair larut resapan dianalisis menggunakan kaedah spektrometer
serapan atom (AAS). Keputusan analisis profil migrasi bagi logam-logam Ni, Cr, Cu, Pb dan Zn menunjukkan nilai yang
lebih tinggi pada bahagian bawah profillaterit. Ini menunjukkan ada berlakunya migrasi atau larut lesap logam-Iogam
daripada bahagian atas kebahagian bawah. Ini juga disokong oleh analisis kandungan kepekatan cecair larut resap yang
mana menunjukkan kandungan Cr dan Ni yang tinggi. Profil migrasi bagi Cu, Pb, dan Zn pula didapati sangat rendah
kandungannya dalam cecair larut lesap kerana nilai dalam tanah lateritik asal yang sangat rendah. Analisis struktur
miktro dalam tanah asal laterit menunjukkan kehadiran mineral bersudut yang kebanyakannya terdiri daripada goethit,
hematit dan gibsit. Mineral-mineral tersebut didapati mengalami proses pelarutan dan jelas ditunjukkan oleh struktur
permukaan yang berubah menjadi sub-bulat oleh mikrograf elektron pengimbas (SEM)
Effect of lime on stabilization of mining waste from Sabah, malaysia
No full textThis paper deals with the effect of lime on stabilization of mining waste from Sabah, Malaysia. In this study, different percentages of lime as well as fine material were added as additive with the mining waste. The engineering properties were measured by compaction test, unconfined compressive strength tests and permeability tests. The mineral identification and microstructure were examined using X-ray diffraction (XRD) and Scanning Electron Microscopic (SEM). The compaction test indicated that the optimum moisture content varied with amount of lime content. The virgin mining waste showed low unconfined compressive strength value due to the very low cementing agent. The samples showed a rapid increase in shear strength when stabilized with lime content ranging from 2 to 8%. The rate of increase in strength is most rapid within two weeks of interaction. This is due to the pozzolanic reaction, which created more rigid - packed structure and small pore space at lime content as low as 2%. More addition of lime had increased the unconfined compressive strength due to the intensive pozzolanic reactions forming more cementitious mineral and created bridge-like structure. However the optimum percentage of lime required was 6% based on the unconfined compressive strength. Lime content in excess of the optimum (8% of lime) acted as filler or lubricant. Significant reduction in permeability to 1 x 10-7 m/s was observed at the end of the leaching test. This is due to the development of cementitious minerals and clogging of fine particle size in the pore spaces
Correction to: An update on carnosine and anserine research
No full textThe original version of this article unfortunately contained a mistake. The author “Shahid Baba” would like to include the middle name “P” in the online published article.No Full Tex
Baba Nanak and Sufism
No full textBaba Nanak was the pioneer of Sikh religion but he also wrote poetry and wrote certain other things. This article analyses the impact of Muslim philosophy and Muslim saints on Nanak and his works. Nanak had close and friendly ties with some Muslim Sufis and had befriended some Sufis and musicians who belonged to Baba Fareed’s ‘jamat khana’. Some of the verses by Baba Fareed are included in Sikh scripture as well. The author has also quoted some verses by Allama Iqbal eulogising Baba Nanak
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