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Koziel, S., J. W. Bandler, A. S. Mohamed, and K. Madsen, "Enhanced surrogate models for statistical design exploiting space mapping technology", Microwave Symposium Digest, 2005 IEEE MTT-S International: IEEE, pp. 4–pp, 2005. Abstract
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Koziel, S., M. Hermanussen, A. Gomula, J. Swanson, M. Kaczmarek, M. El-Shabrawi, M. Elhusseini, T. Satake, I. K. Martinović, C. Scheffler, et al., "Meeting Reports: Adolescence - a Transition to Adulthood Proceedings of the 24th Aschauer Soiree, held at Jurata, Poland, November 5th 2016.", Pediatric endocrinology reviews : PER, vol. 14, issue 3, pp. 326-334, 2017 Mar.
Kramm, G., R. Dlugi, and others, "Scrutinizing the atmospheric greenhouse effect and its climatic impact", Natural science, vol. 3, no. 12: Scientific Research Publishing, pp. 971, 2011. Abstract
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Kramm, G., R. Dlugi, and others, "Scrutinizing the atmospheric greenhouse effect and its climatic impact", Natural Science, vol. 3, no. 12: Scientific Research Publishing, pp. 971, 2011. Abstract
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Kramm, G., R. Dlugi, and others, "Scrutinizing the atmospheric greenhouse effect and its climatic impact", Natural science, vol. 3, no. 12: Scientific Research Publishing, pp. 971, 2011. Abstract
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Kranenburg LGC, B. C. R., R. STH, Cools M, Alderson J, Muscarella M, M. E, Kuiper M, A. S, B. A, B. R, et al., "Global Application of the Assessment of Communication Skills of Paediatric Endocrinology Fellows in the Management of Differences in Sex Development Using the ESPE E-Learning.Org Portal", Horm Res Paediatr., vol. 88, issue 2, pp. 127-139, 2017.
Kratz, K., S. A. Madbouly, W. Wagermaier, and A. Lendlein, "Temperature-Memory Polymer Networks with Crystallizable Controlling Units", Advanced Materials, vol. 23, pp. 4058-4062, 2011. CU-PDF.pdf
Kraza, A. S., M. S. Bayoumi, and G. M. El-Bayoumi, "Loosely Coupled GPS/INS Integration for Land vehicle Navigation", Journal of Al Azhar University Engineering Sector JAUES, vol. 2011, 2011.
Kraza, A. S., M. S. Bayoumi, G. M. Elbayoumi, and S. D. Hassan, "Modeling Inertial Sensor Errors Using Allan Variance", Mansoura Engineering Journal (MEJ), vol. Vol. 36, issue No. 1, pp. E1-E10, 2011.
Kreher, H., "Critique of two contributions to soft systems methodology", European Journal of Information Systems, vol. 2, pp. 304–308, 1993. Abstract
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Kremer, J. M., P. Emery, H. S. Camp, A. Friedman, L. Wang, A. A. Othman, N. Khan, A. L. Pangan, S. Jungerwirth, and E. C. Keystone, "A Phase IIb Study of ABT-494, a Selective JAK-1 Inhibitor, in Patients With Rheumatoid Arthritis and an Inadequate Response to Anti-Tumor Necrosis Factor Therapy.", Arthritis & rheumatology (Hoboken, N.J.), vol. 68, issue 12, pp. 2867-2877, 2016 Dec. AbstractWebsite

OBJECTIVE: To compare the efficacy and safety of ABT-494, a novel selective JAK-1 inhibitor, with placebo in patients with moderate-to-severe rheumatoid arthritis (RA) and an inadequate response or intolerance to at least 1 anti-tumor necrosis factor (anti-TNF) agent.

METHODS: In this 12-week, double-blind, placebo-controlled, dose-ranging study, 276 RA patients receiving a stable dose of methotrexate (MTX) who had previously received treatment with at least 1 anti-TNF agent were randomized equally to receive immediate-release ABT-494 at 3, 6, 12, or 18 mg twice daily or matching placebo twice daily. The primary end point was the proportion of patients meeting the American College of Rheumatology 20% improvement criteria (achieving an ACR20 response) at week 12.

RESULTS: At week 12, significantly more patients receiving ABT-494 (53-71%) than those receiving placebo (34%) achieved an ACR20 response (by nonresponder imputation analysis) (P < 0.05), with a dose-response relationship among all ABT-494 doses (P < 0.001). ACR50 and ACR70 response rates were significantly higher in those receiving ABT-494 (36-42% and 22-26%, respectively) than in those receiving placebo (16% and 4%, respectively). Changes from baseline in the Disease Activity Score in 28 joints using the C-reactive protein level (DAS28-CRP) were significantly greater for all doses of ABT-494 than for placebo (P ≤ 0.01). Onset of action of ABT-494 was rapid, with significant differences from placebo at week 2 both in ACR20 response rate (for 12 and 18 mg) and in change in the DAS28-CRP (P < 0.001 for 6-18 mg). The most frequent adverse events (AEs) were headache, nausea, upper respiratory tract infection, and urinary tract infection. Infection rates were higher at higher doses of ABT-494, but no infections were serious. No deaths were reported among those receiving ABT-494.

CONCLUSION: In patients with an inadequate response or intolerance to anti-TNF agents, ABT-494 added to MTX showed rapid, dose-dependent improvements in RA signs and symptoms, with safety and tolerability similar to those of other drugs of this class. No new AEs were identified.

Kress, M., T. H. Meier, T. A. A. El-Tayeb, R. Kemkemer, R. W. Steiner, and A. C. Rueck, "Short-pulsed diode lasers as an excitation source for time-resolved fluorescence applications and confocal laser scanning microscopy in PDT", European Conference on Biomedical Optics: International Society for Optics and Photonics, pp. 108–113, 2001. Abstract
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Kress, M., T. H. Meier, T. A. A. EL-TAYEB, R. Kemkemer, R. W. Steiner, and A. C. Rueck, "Short-pulsed diode lasers as an excitation source for time-resolved fluorescence applications and confocal laser scanning microscopy in PDT", Photon Migration, Optical Coherence Tomography, and Microscopy, vol. 4431: SPIE, pp. 108-113, 2001. Abstract
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Kriaa, K., and A. F. Nassar, "Study of gala apples (Malus pumila) thin-layer microwave drying: drying kinetics, diffusivity, structure and color", Food Sci. Technol (Campinas), vol. 41, issue 2, pp. 483-493, 2021.
Krichen, I., K. Maazoun, M. Kitar, N. M. Kamal, U. Khan, M. Y. L. Khalif, R. A, H. Assiri, and K. A. Bokari, "Huge Non-parasitic Mesothelial Splenic Cyst in a Child: A Case Report and Literature Review.", Clinical medicine insights. Pediatrics, vol. 15, pp. 11795565211021597, 2021. Abstract11795565211021597.pdf

Background: Splenic cysts are one of the relatively rare conditions in pediatric surgery practice. Primary non-parasitic splenic cysts are even more scarce.

Case presentation: A 13-years-old female patient presented with chronic left hypochondrial pain of 2 months duration. Abdominal ultrasonography and computed tomography revealed huge 18 cm × 14 cm × 10 cm splenic cyst. Deroofing of the cyst was done which was complicated by secondary infection. Subsequently, the patient was re-operated on and partial splenectomy done with good outcome at 6 months follow up.

Conclusion: Partial splenectomy is the best management strategy for huge non-parasitic splenic cysts in children. There is also less recurrence rate of splenic cysts with preservation of splenic functions.

Krishna, A., T. Khattab, A. Abdelaziz, and M. Guizani, Circular Patch Array Antenna Conformal to Harsh Environment, , 2015.
Krishna, A., T. Khattab, A. Abdelaziz, and M. Guizani, On the correlation analysis of electric field inside jet engine, , 2014.
Krishna, A., T. Khattab, A. Abdelaziz, and M. Guizani, On the Statistical Distribution of Electric Field Inside Jet Engines, , 2013.
Krishnamurthi, R. V., A. E. Moran, V. L. Feigin, S. Barker-Collo, B. Norrving, G. A. Mensah, S. Taylor, M. Naghavi, M. H. Forouzanfar, G. Nguyen, et al., "Stroke Prevalence, Mortality and Disability-Adjusted Life Years in Adults Aged 20-64 Years in 1990-2013: Data from the Global Burden of Disease 2013 Study.", Neuroepidemiology, vol. 45, issue 3, pp. 190-202, 2015. Abstract

BACKGROUND: Recent evidence suggests that stroke is increasing as a cause of morbidity and mortality in younger adults, where it carries particular significance for working individuals. Accurate and up-to-date estimates of stroke burden are important for planning stroke prevention and management in younger adults.

OBJECTIVES: This study aims to estimate prevalence, mortality and disability-adjusted life years (DALYs) and their trends for total, ischemic stroke (IS) and hemorrhagic stroke (HS) in the world for 1990-2013 in adults aged 20-64 years.

METHODOLOGY: Stroke prevalence, mortality and DALYs were estimated using the Global Burden of Disease (GBD) 2013 methods. All available data on rates of stroke incidence, excess mortality, prevalence and death were collected. Statistical models were used along with country-level covariates to estimate country-specific stroke burden. Stroke-specific disability weights were used to compute years lived with disability and DALYs. Means and 95% uncertainty intervals (UIs) were calculated for prevalence, mortality and DALYs. The median of the percent change and 95% UI were determined for the period from 1990 to 2013.

RESULTS: In 2013, in younger adults aged 20-64 years, the global prevalence of HS was 3,725,085 cases (95% UI 3,548,098-3,871,018) and IS was 7,258,216 cases (95% UI 6,996,272-7,569,403). Globally, between 1990 and 2013, there were significant increases in absolute numbers and prevalence rates of both HS and IS for younger adults. There were 1,483,707 (95% UI 1,340,579-1,658,929) stroke deaths globally among younger adults but the number of deaths from HS (1,047,735 (95% UI 945,087-1,184,192)) was significantly higher than the number of deaths from IS (435,972 (95% UI 354,018-504,656)). There was a 20.1% (95% UI -23.6 to -10.3) decline in the number of total stroke deaths among younger adults in developed countries but a 36.7% (95% UI 26.3-48.5) increase in developing countries. Death rates for all strokes among younger adults declined significantly in developing countries from 47 (95% UI 42.6-51.7) in 1990 to 39 (95% UI 35.0-43.8) in 2013. Death rates for all strokes among younger adults also declined significantly in developed countries from 33.3 (95% UI 29.8-37.0) in 1990 to 23.5 (95% UI 21.1-26.9) in 2013. A significant decrease in HS death rates for younger adults was seen only in developed countries between 1990 and 2013 (19.8 (95% UI 16.9-22.6) and 13.7 (95% UI 12.1-15.9)) per 100,000). No significant change was detected in IS death rates among younger adults. The total DALYs from all strokes in those aged 20-64 years was 51,429,440 (95% UI 46,561,382-57,320,085). Globally, there was a 24.4% (95% UI 16.6-33.8) increase in total DALY numbers for this age group, with a 20% (95% UI 11.7-31.1) and 37.3% (95% UI 23.4-52.2) increase in HS and IS numbers, respectively.

CONCLUSIONS: Between 1990 and 2013, there were significant increases in prevalent cases, total deaths and DALYs due to HS and IS in younger adults aged 20-64 years. Death and DALY rates declined in both developed and developing countries but a significant increase in absolute numbers of stroke deaths among younger adults was detected in developing countries. Most of the burden of stroke was in developing countries. In 2013, the greatest burden of stroke among younger adults was due to HS. While the trends in declining death and DALY rates in developing countries are encouraging, these regions still fall far behind those of developed regions of the world. A more aggressive approach toward primary prevention and increased access to adequate healthcare services for stroke is required to substantially narrow these disparities.

Krishnamurthi, R. V., G. deVeber, V. L. Feigin, S. Barker-Collo, H. Fullerton, M. T. Mackay, F. O'Callahan, P. M. Lindsay, A. Kolk, W. Lo, et al., "Stroke Prevalence, Mortality and Disability-Adjusted Life Years in Children and Youth Aged 0-19 Years: Data from the Global and Regional Burden of Stroke 2013.", Neuroepidemiology, vol. 45, issue 3, pp. 177-89, 2015. Abstract

BACKGROUND: There is increasing recognition of stroke as an important contributor to childhood morbidity and mortality. Current estimates of global childhood stroke burden and its temporal trends are sparse. Accurate and up-to-date estimates of childhood stroke burden are important for planning research and the resulting evidence-based strategies for stroke prevention and management.

OBJECTIVES: To estimate the prevalence, mortality and disability-adjusted life years (DALYs) for ischemic stroke (IS), hemorrhagic stroke (HS) and all stroke types combined globally from 1990 to 2013.

METHODOLOGY: Stroke prevalence, mortality and DALYs were estimated using the Global Burden of Disease 2013 methods. All available data on stroke-related incidence, prevalence, excess mortality and deaths were collected. Statistical models and country-level covariates were employed to produce comprehensive and consistent estimates of prevalence and mortality. Stroke-specific disability weights were used to estimate years lived with disability and DALYs. Means and 95% uncertainty intervals (UIs) were calculated for prevalence, mortality and DALYs. The median of the percent change and 95% UI were determined for the period from 1990 to 2013.

RESULTS: In 2013, there were 97,792 (95% UI 90,564-106,016) prevalent cases of childhood IS and 67,621 (95% UI 62,899-72,214) prevalent cases of childhood HS, reflecting an increase of approximately 35% in the absolute numbers of prevalent childhood strokes since 1990. There were 33,069 (95% UI 28,627-38,998) deaths and 2,615,118 (95% UI 2,265,801-3,090,822) DALYs due to childhood stroke in 2013 globally, reflecting an approximately 200% decrease in the absolute numbers of death and DALYs in childhood stroke since 1990. Between 1990 and 2013, there were significant increases in the global prevalence rates of childhood IS, as well as significant decreases in the global death rate and DALYs rate of all strokes in those of age 0-19 years. While prevalence rates for childhood IS and HS decreased significantly in developed countries, a decline was seen only in HS, with no change in prevalence rates of IS, in developing countries. The childhood stroke DALY rates in 2013 were 13.3 (95% UI 10.6-17.1) for IS and 92.7 (95% UI 80.5-109.7) for HS per 100,000. While the prevalence of childhood IS compared to childhood HS was similar globally, the death rate and DALY rate of HS was 6- to 7-fold higher than that of IS. In 2013, the prevalence rate of both childhood IS and HS was significantly higher in developed countries than in developing countries. Conversely, both death and DALY rates for all stroke types were significantly lower in developed countries than in developing countries in 2013. Men showed a trend toward higher childhood stroke death rates (1.5 (1.3-1.8) per 100,000) than women (1.1 (0.9-1.5) per 100,000) and higher childhood stroke DALY rates (120.1 (100.8-143.4) per 100,000) than women (90.9 (74.6-122.4) per 100,000) globally in 2013.

CONCLUSIONS: Globally, between 1990 and 2013, there was a significant increase in the absolute number of prevalent childhood strokes, while absolute numbers and rates of both deaths and DALYs declined significantly. The gap in childhood stroke burden between developed and developing countries is closing; however, in 2013, childhood stroke burden in terms of absolute numbers of prevalent strokes, deaths and DALYs remained much higher in developing countries. There is an urgent need to address these disparities with both global and country-level initiatives targeting prevention as well as improved access to acute and chronic stroke care.

Krishnan, N., S. Olivieri, and R. Ramadan, "Estimating the Welfare Costs of Reforming the Iraq Public Distribution System: A Mixed Demand Approach", The Journal of Development Studies , vol. 55, 2019.
Kröner, D., M. F. Shibl, and L. González, "Asymmetric laser excitation in chiral molecules: quantum simulations for a proposed experiment", Chemical physics letters, vol. 372, issue 1-2: North-Holland, pp. 242-248, 2003. Abstract
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