Ridge Patterns Research Articles

Wafer-Scale Particle Assembly in Connected and Isolated Micromachined Pockets via PDMS Rubbing.

The present contribution reports on a study aiming to find the most suitable rubbing method for filling arrays of separated and interconnected micromachined pockets with individual microspheres on rigid, uncoated silicon substrates without breaking the particles or damaging the substrate. The explored dry rubbing methods generally yielded unsatisfactory results, marked by very large percentages of empty pockets and misplaced particles. On the other hand, the combination of wet rubbing with a patterned rubbing tool provided excellent results (typically <1% of empty pockets and <5% of misplaced particles). The wet method also did not leave any damage marks on the silicon substrate or the particles. When the pockets were aligned in linear grooves, markedly the best results were obtained when the ridge pattern of the rubbing tool was moved under a 45° angle with respect to the direction of the grooves. The method was tested for both silica and polystyrene particles. The proposed assembly method can be used in the production of medical devices, antireflective coatings, and microfluidic devices with applications in chemical analysis and/or catalysis.

Double Layered Security System for Smart ATM by Fingerprint and RF Technology

The crucial prerequisite in these days is to get rid of various forms of attacks. Nowadays, for financial transaction, automated teller machines (ATMs) are the mostly used gadgets in which personal identification numbers (PINs) are generally used for transaction. But personal identification numbers (PINs) are not secured from many types of threats (spoofing, eavesdropping, man-in-the middle attack etc.), which can affect the security of the confidential and private information. Due to this reason, different biometric systems gain popularity worldwide for their behavioral and physiological features. However, the current biometric systems, for example, iris, palm, faces or voice are extremely complex to use and have different disadvantages. In order to overcome these disadvantages a new concept has been introduced in this paper, for authentication in ATM a fingerprint authentication method and for information (finger print) transfer a combined approach fingerprint and RF technology scheme is used. Finger authentication system is implemented by the combination of fingerprint reader and fingerprint sensors. For the purpose of information (fingerprint) scanners work by capturing the pattern of ridges and valleys on a finger. The information is then scanners work by the device’s pattern analysis. For fingerprint authentication system, the experiment shows that in proposed classification the average recognition accuracy is 99.75% and 99.92 % and the execution time is 0.168 s and 0.187 s respectively..

PM 7/40 (5) Globodera rostochiensis and Globodera pallida

PM 7/40 (5) <i>Globodera rostochiensis</i> and <i>Globodera pallida</i>

Features of Skin Cancer in Black Individuals: A Single-Institution Retrospective Cohort Study.

IntroductionMinimal knowledge exists regarding skin cancers in Black individuals, which may adversely affect patient care.ObjectivesTo describe clinical features and risk factors of skin cancers in Black individuals.MethodsRetrospective study of Black individuals diagnosed with skin cancer between January 2000 and January 2020 at our institution.Results38,589 patients were diagnosed with skin cancer, of which 165 were Black individuals. One-hundred-thirteen of these Black individuals were diagnosed with melanoma, 35 with squamous cell carcinoma (SCC), and 17 with basal cell carcinoma (BCC). Most melanomas (80.0%, n = 90) were of the acral subtype; 75% (6 of 8 cases with dermoscopic images) displayed a parallel ridge pattern (PRP). The surrounding uninvolved background skin was visible in 7 cases, all demonstrating a PRP. This disappeared adjacent to most of the melanoma lesions (n = 4, 57.1%). creating a peripheral hypopigmented “halo”. The nonmelanoma skin cancers were pigmented and had similar dermoscopic features as reported in predominantly White populations. Most SCCs (n = 5, 71.4%) had a hypopigmented “halo” and most BCCs (n = 10, 55.6%) had an accentuated reticular network adjacent to the lesions.ConclusionsSkin cancers are pigmented in Black individuals. In both acral melanomas and SCCs, we noted a peripheral rim of hypopigmentation between the lesions and the surrounding uninvolved background skin, while BCCs had accentuation of the background pigmentation adjacent to the lesions. Most acral melanomas displayed a PRP, which was also seen in surrounding uninvolved background skin.

SynCoLFinGer: Synthetic contactless fingerprint generator

We present the first method for synthetic generation of contactless fingerprint images, referred to as SynCoLFinGer. To this end, the constituent components of contactless fingerprint images regarding capturing, subject characteristics, and environmental influences are modeled and applied to a synthetically generated ridge pattern using the SFinGe algorithm. The proposed method is able to generate different synthetic samples corresponding to a single finger and it can be parameterized to generate contactless fingerprint images of various quality levels. The resemblance of the synthetically generated contactless fingerprints to real fingerprints is confirmed by evaluating biometric sample quality using an adapted NFIQ 2.0 algorithm and biometric utility using a state-of-the-art contactless fingerprint recognition system.

Detection of Metabolites in Latent Fingerprints Through Green Nanoparticles for Both Forensic Investigations and Medical Purposes

Fingerprints are of core importance to the forensic science for the case investigations. The latent fingerprints are the invisible fingerprints which needs different methods to be visualized. Many methods have been developed for the visualiztion of the latent fingerprints through which the unique ridge pattern of the individual can be identified, but there is a strong requirement for the detection of sweat residues present in the latent fingerprint ridges. The latent fingerprints opens a wide scope of unexplored area in research that is beyond the scope of forensics in detecting various illicit drugs or metabolites of clinical importance. These prints generally show surface-based phonemenon and the nanomaterials provides new opportunities in surface-based sciences. Therefore, the nanoparticles can play a vital role in the detection of molecules in the latent fingerprint ridges. The synthesis of nanoparticles from natural products like green plants provides non-toxic, eco-friendly, biodegradable materials which can be easily utilized in the environment.

Impact of Ridge and Furrow Method of Planting on Groundnut Yield Attributes in Chittoor District of Andhra Pradesh, India

Climate change is putting increasing pressure on India's farmers' land and natural resources, which they rely on not just to feed the country but also to support their livelihoods. Approximately 30% of land is currently degraded, and rising temperatures mean agriculture will require 30% more water. Innovative approaches are emerging across India to assist farmers in adapting to climate change challenges and mitigating the effects of their farming practises. An innovative ridge and furrow planting pattern and its impact on ground nut crop production was carried out. The field experiment was conducted during the two consecutive Rabi and Kharif seasons of 2020 and 2021 to study ridge and furrow in-situ conservation system for Groundnut crop at farmer’s fields in Chittoor district of Andhra Pradesh under Southern agro-climatic region. Raised bed planting involves sowing of crops using raised bed maker alternated with furrows for irrigation. Bed width depends upon crop spacing usually ranging from 30 cm, and accommodates crop on raised bed. Raised beds require reshaping each year preferably before Kharif season. Bed planting reduces cost, and saves seed, fertilizer and irrigation water. It also increases water-use efficiency both under rainfed and irrigated scenarios because water moves laterally from furrows into beds thereby reducing evaporation losses. Further lesser incidence of pest and diseases as well as better aeration within furrows. Weed population reduced on ridge and furrow method of planting. The ridge-furrow method of planting groundnut has been reported to save seed and water by 25-30% and fertilizer by 25%, yield enhancement to the extent of 8-23% higher compared to the normal flatbed sowing method. Economic analysis revealed that the net profit was recorded higher under ridge and furrow system compared to normal flatbed sowing. Benefit–cost ratio (BCR) ratio was recorded under ridge and furrow system (5.13) while under flat sowing system (2.20) for the consecutive years respectively.

Fingerprint patterns in carcinoma cervix patients: A comparative study

Etiology of cervical cancer consist of many factors like genetics, environmental factors etc. Fingertip patterns are formed under genetic control early in development but may be affected by environmental factors during first trimester of pregnancy. These patterns may represent the genetic makeup of a person and therefore his/her predisposition to certain diseases including carcinoma cervix. So this formed the basis of our study where we evaluated fingertip patterns as anatomical marker of carcinoma cervix. An analytical and comparative study done on 100 histo-pathologically confirmed cervical cancer patients and 100 age-matched normal healthy controls. Their fingerprints were analyzed to assess the association of cervical cancer with the fingertip patterns. Fingerprints were obtained by ‘Ink method’ as it was mentioned by Cummins and Midlo. Data on differences in patterns of cases and controls were tested for it’s statistical significance. Statistically significant lower number of arch patterns was observed in the fingerprints of both hands combinedly of the cancer patients as compared to controls. It was also seen that the percentage frequency of arch pattern when compared separately for right and left hands of cancer patients and controls, the frequency of arch pattern was statistically significantly lower in left hands of cases than controls. So it can be concluded that there are significant difference in fingertip patterns of cervical cancer patients from healthy people and Dermatoglyphics i.e., the study of ridge pattern on the finger, palm and soles may be utilized to identify the people at risk of carcinoma cervix.

HOS-FingerCode: Bispectral invariants based contactless multi-finger recognition system using ridge orientation and feature fusion

Fingerprints are a commonly used biometric for civil and forensic applications and the majority of them are captured by contact sensors. More recently, there is a trend toward the use of high resolution digital and video cameras to acquire contactless images. However, the processing of such images is challenging because of intra-class variations such as pose, rotation, translation and scaling due to hand orientation and deformation. They can, however, facilitate the use of full finger or multiple fingers or hand information rather than the fingertip alone. Although some recent research has investigated representation of full finger and hand information under relaxed conditions, current state-of-the-art methods are unable to address transformation issues without manual intervention. To overcome the issues of relaxed constrained nature, geometrical variations and invariant feature encoding regardless of finger orientation, we have used higher order spectral features (HOS-FingerCode) from ridge patterns. We employ an automated method to detect key points and constructs a graph of key-lines. Ridge orientation profiles along with the selected key-lines provide a 1D signal from which bispectral invariant features are extracted. In addition, two fusion schemes are proposed where fusion from multiple key lines combinations and feature fusion from multiple key line configurations are investigated to extract ridge pattern profile for a better performance. The features are pooled from multiple fingers by concatenation or compact bilinear pooling to yield the HOS-FingerCode for multi-finger biometrics. For a single-finger system using 3369 high resolution index and middle finger images, the algorithm better performs when different key lines configurations are fused. For geometrical variations of the images, the system is most impacted by pose than rotation and scale changes of the images, and is tolerant to such variations. For the multi-finger system using 3111 images from both fingers, the algorithm has achieved 93.8% TPR and 97.95% classification accuracy at a setting of 2% FPR. For the feature fusion scheme proposed for multi-finger system using concatenation and compact bilinear pooling, concatenation of features performs better than the compact bilinear pooling. Since multi-finger recognition system performed better than the single finger biometrics system, it can help to diminish the high traffic scenario in busy premises and will facilitate the soft identity verification.

Historical significance and taxonomic status of Ischyrodon meriani (Pliosauridae) from the Middle Jurassic of Switzerland.

Ischyrodon meriani is an obscure pliosaurid taxon established upon an exceptionally large tooth crown of a probable Callovian (Middle Jurassic) age that originates from Wölflinswil, Canton of Aargau, Switzerland. Despite being known for almost two centuries, the specimen remains poorly researched. Historically, I. meriani has been associated, or even considered conspecific, with Pliosaurus macromerus and Liopleurodon ferox. However, neither of the two hypotheses have been tested through detailed comparisons or using modern quantitative methods. Here, we redescribe the type of Ischyrodon meriani, illustrate it, and compare to teeth of thalassophonean pliosaurids, with special focus on Jurassic representatives of the clade. Multivariate analyses show close similarities to L. ferox but comparable structures to those of I. meriani, including a distinctive pattern of the apicobasal ridges, are also observable in some mid-Cretaceous brachauchenines from the ‘Polyptychodon’ assemblage of East and South East England. While it is likely that I. meriani represents a Liopleurodon-like taxon, or is indeed conspecific with L. ferox, which would make I. meriani the proper name for the species, any such taxonomic considerations are hindered by the fragmentary nature of the type specimens of both these taxa as well as limited knowledge of the dental variability within and between individual jaws of L. ferox. Currently, I. meriani is best treated as a nomen dubium. Finally, we discuss the potential implications of I. meriani being conspecific with L. ferox, and additionally provide a commentary on the taxonomic status of Liopleurodon.

Eu-Doped Pyrochlore Crystal Nano-Powders as Fluorescent Solid for Fingerprint Visualization and for Anti-Counterfeiting Applications.

Undoped Y2Sn2O7 and Eu3+ doped Y2Sn2O7 samples with doping concentrations 7%, 8%, 9%, and 10% are successfully synthesized by the co-precipitation method. A complete structural, morphological, and spectroscopic characterization is carried out. XRD measurements reveal that samples crystallize in the pure single pyrochlore phase and Eu3+ ions occupy sites with D3d symmetry. After mechanical grinding, the average crystallite size is less than 100 nm for all compositions. Optical characterization shows emission from the 5D0 level towards the lower lying 7F0,1,2,3,4 levels. The CIE color coordinates of all the pyrochlore phosphors are very close to those of the ideal red light. For the visualization of latent fingerprints, different surfaces are tested, including difficult ones (wood and ceramic), with excellent results. All three levels of fingerprint ridge patterns are visualized: core (Level 1), bifurcation and termination (Level 2), and sweat pores (Level 3). Moreover, our nano-powders are used to prepare a stable fluorescent ink.

The historical emergence of a geometric and sinuous ridge network at the Hørbyebreen polythermal glacier snout, Svalbard and its use in the interpretation of ancient glacial landforms

The post Little Ice Age recession and downwasting of Hørbyebreen, a Svalbard polythermal glacier, has revealed a sub-polar glacial landsystem within which a geometric and sinuous ridge network (GSRN) has evolved by ice melt-out. Spatio-temporal evolution of these features is evaluated using time series of remote sensing data, aerial photography, DEMs and field observations. The GSRN is interpreted as an assemblage of crevasse and hydrofracture infills branching out from parent eskers, a signature of the rapid release of pressurised subglacial and englacial meltwater, likely related to surge-induced jökulhlaups. This gives rise to a range of component materials including till, gravel and interdigitated till and gravel. Ancient examples of such jökulhlaup-diagnostic GSRN in ice sheet settings are recognised as elongate zones of conjugate, reticulate and honeycomb patterned ridges in close association with eskers that often also display reticulate ridge patterns. We present a conceptual model of a process-form continuum for the production of different styles of GSRN that identifies: a) surge crevassing, indicated by glacier wide GRN and zig-zag eskers; b) ice stream surging plug flow, indicated by linear assemblages of GRN; c) sub-marginal till emplacement in radially crevassed active temperate snouts, indicated by narrow concentric arcs of GRN linked to push moraines; and d) jökulhlaup-induced hydrofracture, indicated by linear assemblages of GSRN.

Self-organization of magma supply controls crustal thickness variation and tectonic pattern along melt-poor mid-ocean ridges

In nature, variations in mantle sources and magmatic processes lead to significant changes of crustal thickness distribution and spreading pattern at mid-ocean ridges. Distributions in crust thicknesses are relatively uniform at fast ridges. On the contrary, great lateral fluctuations with even mantle rocks exhumation are observed at slow and ultraslow ridges. Similarity, the spreading pattern changes from symmetric configuration (at fast ridges) to highly asymmetric plates accretion with detachment faults and oceanic core complexes (at slow ridges). Recent modeling studies suggested that magmatism may play a key role in the variation. Yet, the physical mechanisms controlling spatial-temporal distribution and intensity of the magmatic activity at mid-ocean ridges remain elusive. In this study, using 3D self-consistent magmatic-thermomechanical numerical models, we systematically investigate the effect of mantle potential temperature and spreading rate on the crustal thickness lateral variations and tectonic pattern at spreading ridges of various opening rates. Our numerical results show that along melt-poor slow-ultraslow mid-ocean ridges, there are two fundamentally different types of ridge sections that spontaneously form and alternate. This is due to a tectono-magmatic instability which self-consistently partitions melt supply beneath the ridge. Two geometries form: (1) normal ridge sections (NR) with elevated topography, normal thickness of oceanic crust and a hot thermal structure, and (2) fracture zone sections (FZ) with lowered topography, thin/absent crust, exhumed mantle rocks, and a cold thermal structure. The tectono-magmatic instability along spreading ridges is triggered by the combined effects of a reduced melt supply from the mantle into crustal magma chambers and an increase in brittle layer thickness. Such bimodal structure is then maintained by the combined effects of buoyant melt partitioning along the ridge, localized latent heat release from crustal magma crystallization, and different spreading modes. This results, on one hand, in hotter, thinner and elevated magmatic sections (tectono-magmatic spreading), and, on the other hand, in colder, thicker and subsided amagmatic sections (purely tectonic spreading). This predicted bimodal distribution finds a good agreement with natural observations. This suggests that spontaneous self-organization of magma supply controlled by spreading rate and mantle potential temperature plays a critical role in shaping tectonic and crustal patterns of mid-ocean ridges.

Dermatoglyphic patterns and academic performance of college students: a relationship?

ABSTRACT Dermatoglyphics is the study of patterns of epidermal ridges and these patterns do not change through entire life and thus are unique features of identification. This study aimed at finding a relation between the dermatoglyphic patterns and the academic performance among the physiotherapy students of Teerthanker Mahaveer University with the sole intent of using these patterns for categorising students into above average, below average and average performance. A total of 100 physiotherapy students of 3rd and 4th year were included in the study (31 male and 69 female). The students were categorised as average, above average and below average performers on the basis of cumulative percentage of end term exams of last 2 years. The dermatoglyphic patterns were recorded using the flat-bed scanner method. Students with above average academic performance had prevalence of loop pattern (Whorls 37 %, loops 58 %, arches 4 %) while students with below average academic performance had prevalence of whorl pattern (Whorls 58 %, loops 39 %, arches 2 %) and a negative correlation of ‘atd’ angle to the academic performance was observed. Thus, these patterns may be used as adjunct tool for identifying and differentiate individuals on the basis of academic performance so that different methods and educational strategies may be made a part of the curriculum for enhancing the performance of low scoring individuals. Keywords: Dermatoglyphics, fingerprint, atd angle, academic performance

Summer Greenland Blocking Diversity and Its Impact on the Surface Mass Balance of the Greenland Ice Sheet

AbstractThe increase in Greenland Ice Sheet (GrIS) surface runoff since the turn of the century has been linked to a rise in Greenland blocking frequency. However, a range of synoptic patterns can be considered blocked flow and efforts that summarize all blocking types indiscriminately likely fail to capture consequential differences in GrIS response. To account for these differences, we employ ERA5 reanalysis to identify summer blocking using two independent blocking metrics: the Greenland Blocking Index (GBI) and the blocking index of Pelly and Hoskins (2003, https://doi.org/10.1175/1520-0469(2003)060&lt;0743:ANPOB&gt;2.0.CO;2). We then conduct a self‐organizing map analysis to objectively classify synoptic conditions during Greenland blocking episodes and identify three primary blocking types: (a) a high‐amplitude Omega block, (b) a lower‐amplitude, stationary summer ridge, and (c) a cyclonic wave breaking pattern. Using Modèle Atmosphérique Régional output, we document the spatiotemporal progression of the surface energy and mass balance for each blocking type. Relative to all blocking episodes, summer ridge patterns produce more melt over the southern ice sheet, Omega blocks produce more melt across the northern ice sheet, and cyclonic wave breaking patterns produce more melt in northeast Greenland. Our results indicate that the recent trend in summer Greenland blocking was largely driven by an increase in Omega patterns and suggest that Omega blocks have played a central role in the recent acceleration of GrIS mass loss. Furthermore, the GBI exhibited a relative bias toward Omega patterns, which may help explain why it has measured stronger trends in summer Greenland blocking than other blocking metrics.

Acral hyperpigmented macule suspicious of malignant melanoma

Dermoscopy is a noninvasive useful tool to differentiate malignant melanoma from other benign or malignant skin lesions. One of the recent advances in dermoscopy is the significance of parallel ridge pattern, which has 99% specificity in detecting malignant melanoma on the acral volar skin. Here, we report a case of acral hyperpigmented macule suspicious of malignant melanoma.

Latent fingerprint development by using cost effective incense sticks (Agarbatti) ASH

The powder method is the most convenient method for fingerprint development. Various powder methods for developing fingerprints have existed throughout the last decade and numerous powders have been experimented with over time. For this study, a bunch of Alaukik Agarbatti (local incense stick brand of Gujarat, India) were burnt properly and ash of burned incense sticks (Agarbatti) was collected on a sheet of paper. It was crushed by smooth hands and converted into fine powder. The formed powder was applied by the use of camel hairbrush to the latent fingerprints taken from the subjects. Photography was done in proper contrast. The application of burned incense stick powder is a novel material for this kind of study, it has been not done before. The impression of fingerprints obtained using burned incense stick powder was clear and sharply visible on both non-porous and porous surfaces. Ridge patterns in developed impressions were comprehensible and identifiable. Due to their contrast, a black or grey-coloured powder could be easily seen on a colourful background. Developed fingerprints were appropriate for tape-lifting and comparison after photography. This method is best due to its easy availability, less cost, and effectiveness. This method also suggests an approach towards environmental waste management.

Atypical Ulcer Arising on Stasis Dermatitis: Achromic Melanoma

Due to venous insufficiency, a vascular ulcer frequently occurs with the progression of stasis dermatitis. Achromic melanoma, a rare form of pigmentless melanoma frequently located on the sole of the foot, is often and easily confused with a typical wound. Diagnosis of ulcerated achromic melanoma is thus often delayed and associated with a poor prognosis. The authors report a very rare case of malignant melanoma in a 70-year-old female with stasis dermatitis. The painless ulcer was present for 1 year before the first visit. Upon clinical examination, a 2-cm diameter hypergranulating ulcer with irregular and pigmented borders was present. Dermoscopy revealed the presence of red globules, a gray-to-blue veil, irregular vessels, and the remains of a pigmented ridge pattern. Histological analysis showed infiltration of atypical melanocytes in the dermis, 2 mitoses, and ulceration. Diagnosis of melanoma was confirmed by positive MART-1 immunochemistry. After removal of the melanoma, the area was covered with an autologous skin graft excised from the inner thigh. In accordance with the guidelines, sentinel lymph node biopsy was performed, and the result was negative for lymph node involvement. A comprehensive clinical dermoscopic evaluation led to the correct diagnosis. The current case highlights the importance of evaluating a chronic, atypical, nonhealing ulcer clinically and dermoscopically as well as through a biopsy procedure.

Correlation of dermatoglyphics patterns with skeletal malocclusion

Dermatoglyphic Patterns and Skeletal Malocclusion: Dermatoglyphics is the study of the intricate dermal patterns found on the skin of the palmar and plantar surfaces of the hands and feet. The term dermatoglyphics means “skin carving.” He has proven to be of predictive value for both genetic and nongenetic diseases in the medical field. It has been noted that the period of embryonic development for oral and dermal tissues overlaps. Thus, any impact on the development of oral tissues during this period may also represent itself in the dermatoglyphic patterns. Aim: Keeping this in mind, the present study was designed to investigate the correlation between malocclusions and representation in dermatoglyphic patterns. Materials and Methodology: A total of 90 subjects were selected for the study. Thirty cases each of Class I, Class II, and Class III skeletal malocclusions were selected from the age group of 13–18 years of age with permanent molars present. Lateral cephalograms were taken and their dermatoglyphic patterns were recorded by rolling impression technique. The dermatoglyphic data were assessed for different finger ridge patterns and total ridge count (TRC). Results: On comparison of dermatoglyphic patterns between skeletal Class I, II, and III, the skeletal Class I group showed a markedly decreased number of loops and increased TRC. In the skeletal Class II group, we found markedly increased number of loops and markedly decreased TRC. In the skeletal Class III group, we observed a markedly decreased number of arches and increased TRC. Loops were found to be the most predominant pattern in the skeletal Class II and III groups. The mean TRC was found to be increased in the skeletal Class III group, followed by the Class I group and markedly decreased in the skeletal Class II group, which was statistically significant. Conclusion: It is concluded that dermatoglyphics can be used as a screening tool and for the early prediction of skeletal malocclusion at a younger age group. Dermatoglyphics have important practical and clinical implications which can be applied for preventive and interceptive orthodontics among pediatric patients and also for parent counseling.

Palmer Dermatoglyphics in Essential Hypertensive Patients: An Analytical Cross-sectional Study

Introduction: Dermatoglyphics deal with the study of papillary ridge patterns on the skin of fingers, palms, toes and soles. Each pattern is a unique anatomical marker, and their development is strongly affected by genetic and environmental factors. Aim: To determine whether essential hypertensive patients have significant dermatoglyphic pattern association as compared to non hypertensive participants in the study population. Materials and Methods: An analytical cross-sectional study was carried out in 228 patients (114 diagnosed essential hypertensive patients and 114 non hypertensive patients) attending the Department of Medicine at Sree Mookambika Institute of Medical Sciences, Kulasekharam, Tamil Nadu, India, of both the sexes and belonging to different age groups. Informed consent was obtained from each individual. Palmar and fingertip prints of the patients and the controls were taken on the white crystal bond paper by modified Purvis-Smith method and the following parameters were analysed: i) Fingertip pattern frequency; ii) Total and Absolute Finger Ridge Count (AFRC); iii) a-b ridge count; and iv) ‘atd’ angle. The statistical contents like arithmetic mean and standard deviation were calculated and the t-test and chi-square test were applied wherever necessary. Results: There were more loop pattern in digit 2 of left hand of female hypertensives than controls. There was increased Total Finger Ridge Counts (TFRC) in both males (134.14±19.560; p-value=0.038) and females (131.42±27.777; p-value=0.001) hypertensives and significantly higher AFRC (187.65±67.806; p-value=0.001) in female hypertensives, There was decreased ‘a-b’ ridge count in both hands of male (Right: 24.19±4.36; p-value=0.001left:24.54±3.586;p-value=0.001)andfemale(right: 23.65±3.43; p-value=0.001 left:24.16±3.321; p-value=0.001) patients and decreased ‘atd’ angle in both hands of male (right: 38.86±4.001; P=0.003 left: 38.51±4.428; p-value=0.001) and right hand of female (40.70±4.476; p-value=0.009) hypertensive patients, as compared to that of controls. Conclusion: As the parameters showed significant association, they can be used as dermatoglyphic markers for early detection of essential hypertension.