Inherent Potentiality Research Articles

Comparative Spectrophotometric Assessment of Color Stability of Two Hybrid Composite Materials in an Oral Environment when Exposed to Various Liquids.

The primary intent of this scientific research is to effectively assess and collate the inherent potentiality of the two selected investigative composite materials in effectual maintenance of their standard color following subsequent and consistent submersion in customary available pediatric liquids consumed by children. The above investigation will be effectively estimated using the Commission Internationale de I'Eclairege (CIE) L*a*b* system-based spectrophotometer. A total of 100 composites of spheroidal plates were fabricated accordingly. A total of 50 nanohybrids and microhybrids of 8 × 2 mm were fabricated and timely cured using a light cure unit for an approximated time period of 40 seconds. This was then trialled by subsequent sample submersion in the specified five immersive media, which include mineral water, tea, Mirinda, pomegranate juice, and iron syrup, respectively, for a definitive and habitual time of thrice daily up to 15 minutes for a duration of 28 experimental days. The respective marked readings were recorded on the 7th, 14th, 21st, and 28th days by utilization of a CIE L*a*b* system-based spectrophotometer. Mann-Whitney U test and Friedman's Test were utilized for statistical evaluation of the above-described experimental research. The p-value was statistically found to be significant at (p < 0.001). The conclusive findings from the above-defined experimental research were that iron syrup was found to cause the most noticeable and definitive staining in comparison to other immersive media. Nanohybrid composite restorative material was hence identified as being highly resistant to staining and possessing an undeniable ability to maintain the persistent color, unlike its microhybrid counterpart. The esthetic appearance is an important factor for both the parents and children; hence, this determines that the longevity of color stability of restorative materials is of valid significance. Thribhuvanan L, MS S, Gopalakrishnan A, et al. Comparative Spectrophotometric Assessment of Color Stability of Two Hybrid Composite Materials in an Oral Environment when Exposed to Various Liquids. Int J Clin Pediatr Dent 2024;17(2):176-183.

Genre et vocation : La Vocation de Gustave Flaubert de René Dumesnil (1961)

If the concept of vocation perpetuates an idealizing vision of the regime of creation, it is partly due to the enduring popularity of the biographical genre, which continues to successfully legitimize the fascination inspired by artistic and literary exceptionality. Its dramatized narrative models a trajectory leading from an inherent potentiality towards a final consecration. Recently, however, critics have challenged this ideal representation and emphasised the exclusions made by some biographers anxious to safeguard male territories and to dismiss women from the artistic field. Taking René Dumesnil’s La Vocation de Gustave Flaubert as an example, this article highlights what the biography of this “national author” excludes or encompasses when it comes to evoking his vocation and why its biographemes are based on mechanisms undermining the input of women around him.

The Stroop legacy: A cautionary tale on methodological issues and a proposed spatial solution.

The Stroop task is a seminal paradigm in experimental psychology, so much that various variants of the classical color-word version have been proposed. Here we offer a methodological review of them to emphasize the importance of designing methodologically rigorous Stroop tasks. This is not an end by itself, but it is fundamental to achieve adequate measurement validity, which is currently hindered by methodological heterogeneity and limitations. Among the several Stroop task variants in the literature, our methodological overview shows that the spatial Stroop task is not only a potentially methodologically adequate variant, which can thus assure measuring the Stroop effect with the required validity, but it might even allow researchers to overcome some of the methodological limitations of the classical paradigm due to its use of verbal stimuli. We thus focused on the spatial Stroop tasks in the literature to verify whether they really exploit such inherent potentiality. However, we show that this was generally not the case because only a few of them (1) are purely spatial, (2) ensure both all the three types of conflicts/facilitations (at the stimulus, response, and task levels) and the dimensional overlaps considered fundamental for yielding a complete Stroop effect according to the multiple loci account and Kornblum's theory, respectively, and (3) controlled for low-level binding and priming effects that could bias the estimated Stroop effect. Based on these methodological considerations, we present some examples of spatial Stroop tasks that, in our view, satisfy such requirements and, thus, ensure producing complete Stroop effects.

Factors Affecting the Security Threat Avoidance Behaviors of Mobile Financial Service Users

Mobile financial services (MFSs) help customers execute basic financial services with their mobile phones, thereby bringing common people under the formal financial system. Despite the inherent potentiality of MFS, an increasing number of mobile financial frauds reported in different media are threatening customers. To fully analyze factors affecting the avoidance behaviors of the users, the study has employed two widely used theories, namely the theory of planned behavior (TPB) and the technology threat avoidance theory (TTAT). To reveal the complex relationship among the constructs, the partial least squared based structural equation modeling (PLS-SEM) was used to analyze the data of 255 respondents in Bangladesh. The results indicate an interesting finding that the avoidance motivation of the users is not affected by attitude. However, all other exogenous factors such as subjective norm, perceived behavioral control, perceived cost of non-avoidance significantly impact the avoidance motivation. The results also support that avoidance motivation leads to the avoidance behavior in a significant manner.

Learning Through Crisis Epistemologies: Recognising, Managing and Designing New Spaces and Bodies

The Covid-19 crisis made spaces for people to immerse themselves in moments of reflection. The suspension of time, sites, and body mobility, the collapse of the past principles; as the macro learning environment has undergone unprecedented changes, how could people read and react to those changes? Learning at the university, almost all the students have to adopt an online format as a singular way to access higher education, which calls for more self-management capacities and learning autonomy. Bodily learning is crucial from the pedagogical perspective, drawing insights from The Affective Turn, where Clough (2008) took the human body as biomedia so as to affect learning and transform knowledge. This paper shines a light on the new bodies and spaces with inherent innovation potentiality. Based on the literature review chiefly from Sociology, Anthropology, Philosophy, and Culture Studies, this paper engages with four typologies of learning epistemology, nomad, heterotopia, liminality, and rhythm. Their essential characteristics, principles, and interpretations imply in-between and transformational traits, challenging the existing principles and being open to alternatives. They help evaluate the changes and foster our critical and creative learning in risk and crisis. Simultaneously, they serve as the theoretical foundation for the following innovation fieldwork.

Long‐term changes in paddy soil fertility in tropical Asia after 50 years of the Green Revolution

AbstractOver 50 years of the Green Revolution since the 1960s, the global population has increased by 2.5 times, cereal production by 3.3 times and the use of N, P and K fertilisers by 9.4, 4.2 and 4.3 times, respectively. Information is still limited, however, on the influence of these impacts on the fertility status of agricultural soils. Here we investigated the influence of the Green Revolution on 142 paddy soils in three tropical Asian countries, that is, Thailand, the Philippines and Malaysia, during the given period by repeated soil sampling in the 1960s and 2010s at or near the same locations. We revealed that the phytoavailablility indices of three macronutrients – N, P and K, that is, available P, exchangeable K and total N, showed 743% (p &lt; 0.01), 12% and 1% increase on average, respectively, while total C showed 9% decline. Comprehensive investigation of overall fertility status by factor analysis using 11 soil parameters suggested that only the factor scores associated with ‘available P status’ increased drastically in all the three countries (p &lt; 0.01) whereas those associated with ‘organic matter and N contents’ and ‘inherent potentiality’ did not exhibit any consistent changes among the countries. In conclusion, intensive soil/fertiliser management systems under the Green Revolution have successfully improved the nutrient status, especially P status, of paddy soils with slight decrease of soil organic matter over the last 50 years, while a large amount of nutrients applied, especially N and K, has been released from soil to the outer environments. Conversion to a high‐efficiency system of external nutrient inputs with organic matter‐conserving strategies is, therefore, urgently required to secure sustainable food production while restoring the environment during the coming decades.Highlights Paddy soils from 142 locations in three tropical Asian countries were repeatedly surveyed in the 1960s and 2010s. Available P increased by 8.4 times, that of exchangeable K and total N showed 12% and 1% increase, while organic matter level showed 9% decline. Factor analysis indicated significant increase of the factor scores for those associated with ‘available P status’. A high‐efficiency system with organic matter‐conserving strategies is to be established for both sustainable food production and restoration of the environment.

Synthesis and Anti-Pancreatic Cancer Activity Studies of Novel 3-Amino-2-hydroxybenzofused 2-Phospha-γ-lactones.

A series of 3-amino-2-hydroxybenzofused 2-phosphalactones (4a–l) has been synthesized from the Kabachnik–Fields reaction via a facile route from a one-pot three-component reaction of diphenylphosphite with various 2-hydroxybenzaldehyes and heterocyclic amines in a new way of expansion. The in vitro anti-cell proliferation studies by MTT assay have revealed them as potential Panc-1, Miapaca-2, and BxPC-3 pancreatic cell growth inhibitors, and the same is supported by molecular docking, QSAR, and ADMET studies. The MTT assay of their SAHA derivatives against the same cell lines evidenced them as potential HDAC inhibitors and identified 4a, 4b, and 4k substituted with 1,3-thiazol, 1,3,4-thiadiazol, and 5-sulfanyl-1,3,4-thiadiazol moieties on phenyl and diethylamino phenyl rings as potential ones. Additionally, the flow cytometric analyses of 4a, 4b, and 4k against BxPC-3 cells revealed compound 4k as a lead compound that arrests the S phase cell cycle growth at low micromolar concentrations. The ADMET properties have ascertained their inherent pharmacokinetic potentiality, and the wholesome results prompted us to report it as the first study on anti-pancreatic cancer activity of cyclic α-aminophosphonates. Ultimately, this study serves as a good contribution to update the existing knowledge on the anticancer organophosphorus heterocyclic compounds and elevates the scope for generation of new anticancer drugs. Further, the studies like QSAR, drug properties, toxicity risks, and bioactivity scores predicted for them have ascertained the synthesized compounds as newer and potential drug candidates. Hence, this study had augmented the array of α-aminophosphonates by adding a new collection of 3-amino-2-hydroxybenzofused 2-phosphalactones, a class of cyclic α-aminophosphonates, to it, which proved them as potential anti-pancreatic cancer agents.

Plant Tissue Culture- A New Tool for Vegetable Improvement (Indian scenario): A Review

In vitro culture of plant cells/tissues is now routine using a range of explant types from many of the important vegetable and fruit crops. Successful technologies include isolation, culture of tissues, cells, protoplasts, organs, embryos, ovules, anthers and microspores and regeneration from them of complete plantlets. The development of plant tissue culture technology represents one of the most exciting advances in plant sciences. For example, the prospect of being able to introduce, develop, produce, transfer and conserve the existing gene pool of plant sciences by using tissue culture methods opens up new opportunities for researches and entrepreneurs. The term plant tissue culture should denote in vitro cultivation of plant cells or tissues in an unorganized mass, i.e., callus culture. Plant tissue culture techniques, in combination with recombinant DNA technology, are the essential requirements for the development of transgenic plants. However, culture techniques like anther/pollen/ovule culture, meristem culture can themselves be utilized for crop improvement or may serve as an aid to conventional breeding. In recent, isolated microspore culture has developed as a breeding tool and an experimental system for various genetic manipulations. The inherent potentiality of a plant cell to give rise to a whole plant, a capacity which is often retained even after a cell has undergone final differentiation in the plant body, is described as ‘cellular totipotency’. On the other hand, production of virus-free plants via meristem culture can reduce losses caused by phyto-pathogens. Embryo culture has many potential uses ranging from overcoming seed dormancy to facilitation of inter-specific hybridization. Protoplast fusion technique can be used for the transfer of cytoplasmic male sterility from one species to another in a short period of time. In cabbage, male sterile cybrids are being utilized by seed companies to produce hybrid seeds on commercial scale and at competitive rates. Plant tissue culture and cell culture are providing useful methods for germplasm storage either by low temperature storage of organized tissue, or cryopreservation of cell or embryo culture.

Spezieszugehörigkeit und Entwicklungspotential – Was impliziert ihre biotechnische Manipulierbarkeit für das Recht des Embryonenschutzes?

In the German legislation on embryo protection, the scope of protection is defined by its membership to the human species and by the embryo’s inherent potential to develop into a born human being. Both criteria refer to well-known bioethical arguments: the argument from species membership and the potentiality argument. With recent progresses in biotechnology it has, however, become possible manipulate the development potential of human embryos and to blur the boundaries between species. Hence, we must ask, whether both criteria (and with them the arguments) can still hold their ground in bioethics and biomedical law. In my article, I argue, that the aforementioned biotechnological techniques do not require to abandon the arguments from species membership and potentiality. There is, however, a need to clarify what the criteria of species membership and inherent potentiality actually refer to in the relevant laws, i. e. the embryo protection law and the stem cell law.

Synthesis and Characterization of Copper (II) and Nickel (II) Immobilized on Silica- Coated Copper Ferrite: As Novel Magnetically Reusable Nano Catalysts Towards Reduction of Nitroarenes with NaBH4.

Nowadays, the design, synthesis and application of magnetically nanocomposite systems have attracted the attention of numerous scientists. The huge surface area and magnetic characteristic of nanoparticles as well as the inherent potentiality of the used metal species, makes them susceptible to have different reactivity in chemical reactions. In this context, we therefore encouraged to prepare a new design of magnetic nanocatalysts as CuFe2O4@SiO2@AAPTMS@Ni(II) and CuFe2O4@SiO2@AAPTMS@Cu(II) followed by monitoring of their catalytic activities towards reduction of nitroarenes with NaBH4. Magnetically nanoparticles of CuFe2 O4@SiO2@AAPTMS@Ni(II) and CuFe2O4@SiO2@AAPTMS@Cu(II) were prepared through a four-step procedure: i) preparation of CuFe2O4 MNPs, ii) coating of CuFe2O4 nucleus by silica-layer using tetraethyl orthosilicate (TEOS), iii) layering of CuFe2O4@SiO2 MNPs with [3-(2-aminoethylamino)propyl] trimethoxysilane (AAPTMS), and iv) the complexation of CuFe2O4@SiO2@AAPTMS MNPs with an aqueous solution of Ni(OAc)2·4H2O or Cu(OAc)2·H2O. The catalytic activity of CuFe2O4@SiO2@AAPTMS@Ni(II) and the Cu(II)-analogue towards reduction of nitroarenes with NaBH4 was studied. The examinations resulted that using a molar ratio of 1:2 for ArNO2 and NaBH4 in the presence of 20 mg of nanocomposites in H2O under reflux conditions reduces various aromatic nitro compounds to arylamines in high yields. The immobilization of Ni(II) and Cu(II) species on silica-layered CuFe2O4 was investigated. Magnetically nanoparticles of CuFe2O4@SiO2@AAPTMS@Ni(II) and the Cu(II)-analogue showed the perfect catalytic activity towards reduction of nitroarenes with NaBH4 in H2O. All reactions were carried out within 2- 15 min to afford aniline products in high yields.

Klasična arhitektura u okviru kantovske estetike - između Liotara i Ransijera

Classical architecture's inherent potentiality to constitute the principal architectural expression of western culture since Greek antiquity is due to its dual character: although it comes out from the primordial unity of things expressed by myth and religion in archaic times, it acquires its form of completion in the fifth c. BC, as a symbol of democracy and a harmonic articulation of the world on the ground of philosophical thinking. By placing the avant-guard art in the sphere of the Kantian sublime, Jean-Francois Lyotard focuses on the impossibility of an absolute relation between reason and perception or between thinking and image, in modernity. He considers that in cases where this happens, it gives birth to political monsters. He connects postmodern expressions of classicism in architecture with Freud's "Interpretation of Dreams" and the Kantian beautiful. Jacques Ranciere's approach to a Kantian in basis aesthetic consideration of modernity is opposite to that proposed by Lyotard. Instead of the sublime, Ranciere relates the beautiful with the rupture between thinking and perception . In this respect, fragments of the past can stimulate a creative procedure in the present. This investigation aims to contribute to the dialogue for a renovated approach to the role of classicism in architecture today.

Selling (un)real estate with “Shi(势)-nema”: manipulation, not persuasion, in China’s contemporary cinematic-cities

ABSTRACTInvestigating what has been called the mise-en-scene of Capitalism’s Second Coming in China, this essay explores how cinematic principles have become divorced from the medium of cinema and can be found operating within contemporary Chinese urban spaces in order to increase the efficacy of real estate showroom settings. Specifically, we explore the effects of affectively distributed networks of human, architectural and nonhuman “actors” that appear to be arranged in such a way as to manipulate and impact the thoughts, feelings and actions of potential buyers. To best expose the effectiveness of these modern urban assemblages, we engineer an encounter between the Chinese concept of shi (势) – described by sinologist-philosopher François Julien as the “inherent potentiality at work in configuration” – and that of cinematicty, wherein the cinema and city are recognised as co-determining and mutually enabling site/sights.

Image, measure, figure: a critical discourse analysis of nursing practices that develop children

Motivated by discourses that link early child development and health, nurses engage in seemingly benign surveillance of children. These practices are based on knowledge claims and technologies of developmental science, which remain anchored in assumptions of the child body as an incomplete form with a universal developmental trajectory and inherent potentiality. This paper engages in a critical discursive analysis, drawing on Donna Haraway's conceptualizations of technoscience and figuration. Using a contemporary developmental screening tool from nursing practice, this analysis traces the effects of this tool through production, transformation, distribution, and consumption. It reveals how the techniques of imaging, abstraction, and measurement collide to fix the open, transformative child body in a figuration of the developing child. This analysis also demonstrates how technobiopower infuses nurses' understandings of children and structures developmentally appropriate expectations for children, parents, and nurses. Furthermore, it describes how practices that claim to facilitate healthy child development may inversely deprive children of agency and foster the production of normal or ideal children. An alternative ontological perspective is offered as a challenge to the individualism of developmental models and other dominant ideologies of development, as well as practices associated with these ideologies. In summary, this analysis argues that nurses must pay closer attention to how technobiopower infuses practices that monitor and promote child development. Fostering a critical understanding of the harmful implications of these practices is warranted and offers the space to conceive of human development in alternate and exciting ways.

CLAY MINERALOGICAL COMPOSITION OF SOME SOILS IN MYANMAR

Fourteen surface soil samples were collected from hilly region in Shan State (Southern), inland valley and meander floodplain in Mandalay Division, and deltaic plain in Bago and Yangon Divisions of Myanmar and subjected to clay mineral analysis. The clay mineralogical composition of the soils was found to have a good relationship with physiography as a total of the topography, parent material and soil type. Soils on the hilly region in Shan State (Southern) were characterized by the high kaolinite content in the clay fraction, whereas soils on the meander floodplain of the Ayeyarwady River system were dominated by mica. 2:1-type expansible minerals (vermiculite, smectite, and mica/vermiculite/ smectite-mica/smectite mixed-layer mineral) considered as the transformation products of mica were predominant in soils on the inland valley in Mandalay Division. Soils on the deltaic plain of the Ayeyarwady River system and on the meander floodplain of the Sittang River were characterized by major amounts of kaolinite with considerable amounts of chlorite-vermiculite intergrade or some amounts of mica. Inherent potentiality of the soils was assessed based on the type and amount of clay minerals. The assessment showed a large variability in the inherent potentiality of the soils, which is useful to effective management of soil for crop production.

CLAY MINERALOGY OF FERRALITIC SOILS DERIVED FROM SEDIMENTARY AND METAMORPHIC ROCKS IN VIETNAM

Nine profiles of ferralitic soils derived from sedimentary and metamorphic rocks were collected from the hilly and mountainous areas in the Northwest, Northern, Northeast, Red River Delta and North of Central agro-ecological regions of Vietnam, and were subjected to clay mineral analysis. The main clay minerals detected were kaolinite, halloysite (0.7 nm), and 2:1-type silicate minerals such as mica, the mica/smectite mixed-layer mineral, and chlorite-vermiculite intergrade. The difference in the clay mineralogical composition among the soils was controlled by the intensity or advancement of ferralitization, a main soil forming process occurring in those areas. Based on the clay mineralogical composition in the clay fraction, nine profiles were divided into 3 groups representing different levels of advancement in ferralitization. In the group 1, in which ferralitization was less advanced due to the young geologic age or retarded by the site-environmental condition or microrelief, halloysite (0.7 nm) and 2:1-type silicate minerals were predominant in the clay fraction. In the group 2 of the intermediate stage of ferralitization, halloysite (0.7 nm) was changed to kaolinite, and 2:1-type silicate minerals were weathered and the decrease in their contents was corresponding with the increase in the kaolinite content. In the group 3 subjected to the most advanced ferralitization, kaolinite occupied up to more than 90% in the clay fraction. Since ferralitization is a prolonged soil genetic process, soils developed from the same parent rock but differing in the geologic age might have the different clay mineralogical composition. In contrast, soils derived from the different parent rocks might have the same clay mineralogical composition at the advanced stage of ferralitization. Inherent potentiality of the soils was assessed based on the type and amount of clay minerals and its variation among the soils was mainly attributed to the amount of 2:1-type silicate minerals in the clay fraction.

CLAY MINERALOGY OF FERRALITIC SOILS DERIVED FROM IGNEOUS ROCKS IN VIETNAM

Twelve profiles of ferralitic soils derived from different igneous rocks were collected from hilly and mountainous areas in the Northern, North of Central, Coastal Area of Southern Central and High Plateau Tay Nguyen regions of Vietnam, and were subjected to clay mineral analysis. The main clay minerals detected were kaolin (kaolinite and halloysite (0.7 nm)), 2:1-type silicate (mainly mica, vermiculite, smectite, the mica/vermiculite/smectite-mica/smectite mixed-layer mineral, and chlorite-vermiculite intergrade), and oxide/ hydroxide (gibbsite and goethite) minerals. Based on the abundance of kaolin and oxide/hydroxide minerals in the clay fraction, twelve profiles were grouped into 3 groups. The mineralogical difference of soils among the three groups was explained by the difference in rock-forming minerals of igneous rocks rather than by advancement of ferralitization, different from soils derived from sedimentary and metamorphic rocks in the previous study (Nguyen and Egashira, 2007). Inherent potentiality of the soils was assessed based on the type and amount of clay minerals and varied with soils depending mainly on the amount of 2:1-type silicate minerals in the clay fraction.

Mining Sequential Patterns More Efficiently by Reducing the Cost of Scanning Sequence Databases

Sequential pattern mining is a useful technique used to discover frequent subsequences as patterns in a sequence database. Depending on the application, sequence databases vary by number of sequences, number of individual items, average length of sequences, and average length of potential patterns. In addition, to discover the necessary patterns in a sequence database, the support threshold may be set to different values. Thus, for a sequential pattern-mining algorithm, responsiveness should be achieved for all of these factors. For that purpose, we propose a candidate-driven pattern-growth sequential pattern-mining algorithm called FSPM (Fast Sequential Pattern Mining). A useful property of FSPM is that the sequential patterns concerning a user-specified item can be mined directly. Extensive experimental results show that, in most cases FSPM outperforms existing algorithms. An analytical performance study shows that it is the inherent potentiality of FSPM that makes it more effective.

Clay mineralogical composition of alluvial soils from different river systems/agro-ecological regions in vietnam in reference to origin, regional distribution and soil quality

Sixteen profiles of alluvial soils of Vietnam were collected throughout the country and subjected to clay mineral analysis. Alluvial soils from different river systems/agro-ecological regions had different clay mineralogical compositions due to differences in sediment sources. Mica and kaolinite were found to be predominant clay minerals in alluvial soils. Other major minerals detected were vermiculite, smectite, chlorite, and the mica/vermiculite/smectite∼mica/smectite mixed-layer mineral, depending on the river systems. The clay mineralogical composition was remarkably similar within soil units belonging to the same river system and in a profile. However, the clay mineralogical composition greatly varied with river systems; therefore, the regional variation existed and was mainly controlled by the mineralogical features of the sediment sources. Mica was found to be altered to mixed-layer minerals in some soils under specific conditions. The soil quality was assessed from the viewpoint of inherent potentiality based on the type and amount of clay minerals as plant-nutrient sources. Alluvial soils distributed in the Red River and Mekong River systems were evaluated to be in the high level of inherent potentiality. Those from the Trakhuc River and Ba River systems were classified to have low inherent potentiality, while those from the remaining ones were to be at an intermediate level.

MINERALOGY OF SOILS FROM DIFFERENT AGROECOLOGICAL REGIONS OF BANGLADESH : REGION 12-LOW GANGES RIVER FLOODPLAIN

Bangladesh has been divided into 30 Agroecological Regions (AEZs) and the applied agricultural research has currently been conducted on this basis. In context of the lack of enough information on mineralogy on the AEZ basis, an attempt has been taken to study mineralogy of important soils from all AEZs of Bangladesh in order to provide basic information for applied research. As a part of this attempt, the mineralogy of ten soils consisting of nine representative soil series of AEZ 12, Low Ganges River Floodplain, has been reported in this paper. The clay content of the surface soils ranged from 18.6 to 35.7% and the texture was mostly silt loam. The 2-20 μm silt fraction was found to dominate over other fractions in almost all soils. This fraction was composed mainly of quartz, followed by mica, plagioclase and chlorite. Mica and smectite were predominant minerals in the <2 μm clay fraction. The impact of mineralogy on the inherent potentiality of soils regarding crop production has been discussed.

MINERALOGY OF SOILS FROM DIFFERENT AGROECOLOGICAL REGIONS OF BANGLADESH : REGION 28-MADHUPUR TRACT

Bangladesh has been divided into 30 Agroecological Regions (AEZs) and the applied agricultural research has currently been conducted on this basis. In context of the lack of enough information on mineralogy on the AEZ basis, an attempt has been taken to study mineralogy of important soils from all AEZs of Bangladesh in order to provide basic information for applied research. As a part of this attempt, the mineralogy of soils from ten representative soil series of AEZ 28, Madhupur Tract, has been reported in this paper. The soils were acidic in nature, had moderate to high amounts of clay, and the texture was medium (silt loam) to heavy (clay). The 2-20 μm silt fraction was composed mainly of quartz, with small amounts of mica, plagioclase, K-feldspar and chlorite. Mica, kaolinite and the interstratified mineral of kaolinite and smectite were the predominant minerals in the <2 μm clay fraction. The impact of mineralogy on the inherent potentiality of soils regarding crop production has been discussed.