Digital RepositoryThe UoK digital repository system captures, stores, indexes, preserves, and distributes digital research material.http://repository.kln.ac.lk:802020-02-27T07:04:34Z2020-02-27T07:04:34ZRole of total curvature on rays of non-compact Riemannian 2-manifoldMalwatta, P.B.http://repository.kln.ac.lk/handle/123456789/210752020-02-23T13:52:19Z2019-10-25T00:00:00ZRole of total curvature on rays of non-compact Riemannian 2-manifold
Malwatta, P.B.
It is interesting to study the geometry of total curvature on complete open surfaces. Cohn-Vossen’s inequality states that in every connected noncompact finitely connected complete Riemannian 2-manifold �� with finite total curvature ��(��) and finite Euler characteristic ��(��), we have ��(��)≤2����(��). Huber extended this result, if a connected, infinitely connected complete Riemannian 2-manifold �� without boundary admits a total curvature ��(��), then ��(��)= −∞. The value 2����(��)−��(��) plays an important role in the study of rays on complete, noncompact Riemannian 2-manifolds. A ray ��:[0,∞]⟶��, on a complete, non-compact Riemannian manifold �� is by definition a unit speed geodesic every subarc of which is minimizing. Due to the completeness and non-compactness of the Riemannian 2-manifold ��, there exists at least one ray emanating from every point of a manifold. If ��(��) is the collection of all rays emanating from ��∈�� and �� is the natural measure induced by the Riemannian metric then lim��→∞������(����)⊂��(��) , where {����} is a sequence of points of �� converging to ��. Also we have the function ������∶��⟶[0,2��] is upper semi-continous and hence Lebesgue integrable. If �� is connected, finitely connected, complete and non-compact Riemannian 2-manifold, we then investigated the relationship between ��(��) and the function ������, proving that if �� is homeomorphic to ��2 and if Gaussian curvature ��≥0, then ������ ≥2��−��(��), and in particular ��������������=2��−��(��).
2019-10-25T00:00:00ZPharmacognacy of Paththu Dravya for Amavatha Shotha Used in Nadungamuwa Weda ParamparaWeerasooriya, W.A.A.P.S.http://repository.kln.ac.lk/handle/123456789/210742020-02-12T08:10:01Z2019-01-01T00:00:00ZPharmacognacy of Paththu Dravya for Amavatha Shotha Used in Nadungamuwa Weda Parampara
Weerasooriya, W.A.A.P.S.
Traditional medicine is the sum total of the knowledge, skills, and practices based On the
theories, beliefs, and experiences. Chronic/Acute inflammatory joint disease Amavata
(Rheumatoid Arthritis) is a disease that some medical systems are failed with treating. This
causes swelling, pain and stiffness ofjoints. As Ayurveda texts, it manifested in joints ofhasta,
pada. sira, trika, janu and uru. The main symptoms produced are Angamarda Aruchi,
Trishna, Gouravam, Apaka & Shotha. In traditional system the shothahara paththu is most
significantly used in ama vatha atha localy. As the Ingredients of paththu Thala,
Sathakuppa, Eranda seeds, Aralu, thhadun, and Siyabala leaves prominently it shows
Thiktha-Madhura rasa reading the property. And as to the descending order rasa
katu-Kashaya-Arnla rasa can be seen. lawana rasa was not found. According to the Guna
Property mostly Lagu-Ruksh-Thikshna guna were included and snigdha-Sara-Guru guna were
containing in very less amount. Regarding the Property of Veerya.lt contains 78% of Ushna
Veerya and 22% of Sheetha Veerya. Under the property of Vipaka 800/0 Of drugs in Katu
Vipaka , 200/0 madhura vipaka and 4% in Amla Vipaka.So the Amla Vipaka herbs may used
in very little. Therefore the shotha contributed by Madura Rasa Vipaka. Ushna Veerya, and
Vatha dosha will removed and thiktha Rasa, ushana veerya and kapha dosha became to
shaman state. It clearly shows in the traditional ama vatha shotha paththu reduce the shotha
condition by contributing shamana of Vata and kappa dosha very well
2019-01-01T00:00:00ZDetermination of antimicrobial efficacv of four Ayurveda Local Applications (Pratisarana Yoga) in the management of Periodontal DiseasePeiris, K.P.P.Wanigasekara, D.N.Sudesh, A.D.H.Katunatathne, E.D.C.http://repository.kln.ac.lk/handle/123456789/210732020-02-12T08:01:55Z2019-01-01T00:00:00ZDetermination of antimicrobial efficacv of four Ayurveda Local Applications (Pratisarana Yoga) in the management of Periodontal Disease
Peiris, K.P.P.; Wanigasekara, D.N.; Sudesh, A.D.H.; Katunatathne, E.D.C.
This study evaluates the antimicrobial activity of four Ayurvedic formulations namely Kushtadi
Ehurna, Swethamaniana Churna, Karanladi Churna and Dasana Sanskara Churna that are used to treat
periodontal diseases as local applications. The objectives are to find out the presence or absence of in-vitro
antimicrobial efficacy of these four drugs and to evaluate the antimicrobial efficacy of them using agar well
diffusion method. The organisms used for the study are Staphylococcus aureus (ATCC 29213), Metlucillin
resistant Staphylococcus aureus (ATCC 25923) and clinically isolated Candida albicans. The results of the in-vitro
antimicrobial efficacy study reveals that Swethamanjana Chuma possesses antimicrobial action against all three
tested microorganisms. Kushtadi Churna is cffcctivc against S. aureus (ATCC 29213) and MRSA (ATCC 25923)
and it is unable ro affect rhe growth of C. albicans. Karaniadi Churna and Dasana Sanskara Chuma are effecnve
against S. aureus (ATCC 29213) and C. albicans and not effective against MRSA(ATCC 25923). Fluconazole and
Amoxicillin are used as positive controls for the yeast and two bacteria respectively.
2019-01-01T00:00:00ZIn-vitro evaluation of antimicrobial efficacy of the indigenous formulation, Karna Bindu against common pathogens causing otitis infections.peiris, K.P.P.Wanigasekara, D.N.Sudesh, A.D.H.Karunarathne, E.D.C.http://repository.kln.ac.lk/handle/123456789/210722020-02-12T07:50:22Z2019-01-01T00:00:00ZIn-vitro evaluation of antimicrobial efficacy of the indigenous formulation, Karna Bindu against common pathogens causing otitis infections.
peiris, K.P.P.; Wanigasekara, D.N.; Sudesh, A.D.H.; Karunarathne, E.D.C.
This study investigates the efficacy of the formulation named "Karna Bindlö' which has been used
in indigenous medicinal practices to treat ear infections such as otitis media and otitis externa. The
objectives are to determine the antimicrobial efficacy of Karna Bindu against Aspergillus
niger,Candida alhicans and Pseudomonas aeruginosa and to compare the efficacy of the
indigenous formulation with the conventional antibiotics that are used for the test organisms. By
using the agar well diffusion method, the test organisms were cultivated and the relevant antibiotics
were used as positive controls while sterile distilled water served as the negative control. The antimicrobial assay revealed that Karna Bindu is effective against all three selected
microorganisms. The Minimum Inhibitory Concentrations (MIC) of the formulation for C.
albicans and aeruginosa were recorded as 500 gL/mL, and 750 gL/mL accordingly.
2019-01-01T00:00:00Z