Wilfried Wang's Books

Hilbert's Programs and Beyond

By: Wilfried Sieg

Write a review Read reviews Take a Quiz Solve Book Puzzle

Hilbert's Programs & Beyond presents the foundational work of David Hilbert in a sequence of thematically organized essays. They first trace the roots of Hilbert's work to the radical transformation of mathematics in the 19th century and bring out his pivotal role in creating mathematical logic and proof theory. They then analyze techniques and results of "classical" proof theory as well as their dramatic expansion in modern proof theory. This intellectual experience finally opens horizons for reflection on the nature of mathematics in the 21st century: Sieg articulates his position of reductive structuralism and explores mathematical capacities via computational models.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

439

Publisher

Oxford University Press

Published Date

ISBN 10

0199707154

ISBN 13

9780199707157

Interpretation of MS-MS Mass Spectra of Drugs and Pesticides

By: Wilfried M. A. Niessen,Ricardo A. Correa C.

Write a review Read reviews Take a Quiz Solve Book Puzzle

Interpretation of MS-MS Mass Spectra of Drugs and Pesticides

By: Wilfried M. A. Niessen,Ricardo A. Correa C.

Provides comprehensive coverage of the interpretation of LC–MS–MS mass spectra of 1300 drugs and pesticides Provides a general discussion on the fragmentation of even-electron ions (protonated and deprotonated molecules) in both positive-ion and negative-ion modes This is the reference book for the interpretation of MS–MS mass spectra of small organic molecules Covers related therapeutic classes of compounds such as drugs for cardiovascular diseases, psychotropic compounds, drugs of abuse and designer drugs, antimicrobials, among many others Covers general fragmentation rule as well as specific fragmentation pathways for many chemical functional groups Gives an introduction to MS technology, mass spectral terminology, information contained in mass spectra, and to the identification strategies used for different types of unknowns

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

413

Publisher

John Wiley & Sons

Published Date

ISBN 10

111929424X

ISBN 13

9781119294245

Literature 1980, Part 1

By: Siegfried Böhme,Ute Esser,Professor Dr. Walter Fricke,Inge Heinrich,Wilfried Hofmann,Dietlinde Krahn,Dorothea Rosa,Dr. Lutz D. Schmadel,Gert Zech

Write a review Read reviews Take a Quiz Solve Book Puzzle

Literature 1980, Part 1

By: Siegfried Böhme,Ute Esser,Professor Dr. Walter Fricke,Inge Heinrich,Wilfried Hofmann,Dietlinde Krahn,Dorothea Rosa,Dr. Lutz D. Schmadel,Gert Zech

Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is de voted to the recording, summarizing and indexing of astronomical publications throughout the world. It is prepared under the auspices of the International Astronomical Union (according to a resolution adopted at the 14th General Assembly in 1970). Astronomy and Astrophysics Abstracts aims to present a comprehensive documentation of literature in all fields of astronomy and astrophysics. Every effort will be made to ensure that the average time interval between the date of receipt of the original literature and publication of the abstracts will not exceed eight months: This time interval is near to that achieved by monthly abstracting journals, com pared to which our system of accumulating abstracts for about six months offers the advantage of greater convenience for the user. I, 1980; some older Volume 27 contains literature published in 1980 and received before August literature which was received late and which is not recorded in earlier volumes is also included. We acknowledge with thanks contributions to this volume by Dr. J. Bouska, Prague, who surveyed journals and publications in Czech and supplied us with abstracts in English.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

949

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3662123223

ISBN 13

9783662123225

PEDOT

Principles and Applications of an Intrinsically Conductive Polymer

By: Andreas Elschner,Stephan Kirchmeyer,Wilfried Lovenich,Udo Merker,Knud Reuter

Write a review Read reviews Take a Quiz Solve Book Puzzle

PEDOT

Principles and Applications of an Intrinsically Conductive Polymer

By: Andreas Elschner,Stephan Kirchmeyer,Wilfried Lovenich,Udo Merker,Knud Reuter

While there is information available in handbooks on polythiophene chemistry and physics, until now, few if any books have focused exclusively on the most forwardly developed electrically conductive polymer, Poly (3,4-ethylenedioxythiophene)-otherwise known as PEDOT. This resource provides full chemical, physical, and technical information about this important conducting polymer, discussing basic knowledge and exploring its technical applications. Presented information is based on information generated at universities and through academic research, as well as by industrial scientists, providing a complete picture of the experimental and the practical aspects of this important polymer.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

380

Publisher

CRC Press

Published Date

ISBN 10

1420069128

ISBN 13

9781420069129

Literary Artistry in Leviticus

By: Wilfried Warning

Write a review Read reviews Take a Quiz Solve Book Puzzle

Literary Artistry in Leviticus

By: Wilfried Warning

This study explores the vocabulary employed in the extant text of Leviticus. The chosen methodology of rhetorical analysis (with particular emphasis upon terminological patterns) shows a carefully composed text. The basic working hypothesis that Leviticus has been artistically structured around 37 divine speeches 'and the Lord spoke/said to Moses (and Aaron)' . With chapter 16 as its possible structural and theological center has been substantiated both on the microstructural and macrostructural levels. The plethora of significant micro- and macrostructural terminological patterns, suggests original literary cohesiveness and hence single-handed authorship. These findings are of special significance regarding so-called "P" and "H" passages, a "layer of priestly reworking", and, even more, the exegesis and theology of Leviticus.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

272

Publisher

BRILL

Published Date

ISBN 10

9004497153

ISBN 13

9789004497153

Semiconductor Optics and Transport Phenomena

By: Wilfried Schäfer,Martin Wegener

Write a review Read reviews Take a Quiz Solve Book Puzzle

Semiconductor Optics and Transport Phenomena

By: Wilfried Schäfer,Martin Wegener

Well-balanced and up-to-date introduction to the field of semiconductor optics, including transport phenomena in semiconductors. Starting with the theoretical fundamentals of this field the book develops, assuming a basic knowledge of solid-state physics. The application areas of the theory covered include semiconductor lasers, detectors, electro-optic modulators, single-electron transistors, microcavities and double-barrier resonant tunneling diodes. One hundred problems with hints for solution help the readers to deepen their knowledge.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

498

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3662046636

ISBN 13

9783662046630

Principles of Database Management

The Practical Guide to Storing, Managing and Analyzing Big and Small Data

By: Wilfried Lemahieu,Seppe vanden Broucke,Bart Baesens

Write a review Read reviews Take a Quiz Solve Book Puzzle

Principles of Database Management

The Practical Guide to Storing, Managing and Analyzing Big and Small Data

By: Wilfried Lemahieu,Seppe vanden Broucke,Bart Baesens

This comprehensive textbook teaches the fundamentals of database design, modeling, systems, data storage, and the evolving world of data warehousing, governance and more. Written by experienced educators and experts in big data, analytics, data quality, and data integration, it provides an up-to-date approach to database management. This full-color, illustrated text has a balanced theory-practice focus, covering essential topics, from established database technologies to recent trends, like Big Data, NoSQL, and more. Fundamental concepts are supported by real-world examples, query and code walkthroughs, and figures, making it perfect for introductory courses for advanced undergraduates and graduate students in information systems or computer science. These examples are further supported by an online playground with multiple learning environments, including MySQL, MongoDB, Neo4j Cypher, and tree structure visualization. This combined learning approach connects key concepts throughout the text to the important, practical tools to get started in database management.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

817

Publisher

Cambridge University Press

Published Date

ISBN 10

1316946754

ISBN 13

9781316946756

Photovoltaic Solar Energy

From Fundamentals to Applications, Volume 1

By: Angèle Reinders,Pierre J. Verlinden,Wilfried van Sark,Alexandre Freundlich

Write a review Read reviews Take a Quiz Solve Book Puzzle

Photovoltaic Solar Energy

From Fundamentals to Applications, Volume 1

By: Angèle Reinders,Pierre J. Verlinden,Wilfried van Sark,Alexandre Freundlich

Solar PV is now the third most important renewable energy source, after hydro and wind power, in terms of global installed capacity. Bringing together the expertise of international PV specialists Photovoltaic Solar Energy: From Fundamentals to Applications provides a comprehensive and up-to-date account of existing PV technologies in conjunction with an assessment of technological developments. Key features: Written by leading specialists active in concurrent developments in material sciences, solar cell research and application-driven R&D. Provides a basic knowledge base in light, photons and solar irradiance and basic functional principles of PV. Covers characterization techniques, economics and applications of PV such as silicon, thin-film and hybrid solar cells. Presents a compendium of PV technologies including: crystalline silicon technologies; chalcogenide thin film solar cells; thin-film silicon based PV technologies; organic PV and III-Vs; PV concentrator technologies; space technologies and economics, life-cycle and user aspects of PV technologies. Each chapter presents basic principles and formulas as well as major technological developments in a contemporary context with a look at future developments in this rapidly changing field of science and engineering. Ideal for industrial engineers and scientists beginning careers in PV as well as graduate students undertaking PV research and high-level undergraduate students.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

755

Publisher

John Wiley & Sons

Published Date

ISBN 10

111892746X

ISBN 13

9781118927465

Design and Operation of Heat Exchangers and their Networks

By: Wilfried Roetzel,Xing Luo,Dezhen Chen

Write a review Read reviews Take a Quiz Solve Book Puzzle

Design and Operation of Heat Exchangers and their Networks

By: Wilfried Roetzel,Xing Luo,Dezhen Chen

Design and Operation of heat Exchangers and Their Networks presents a comprehensive and detailed analysis on the thermal design methods for the most common types of heat exchangers, with a focus on their networks, simulation procedures for their operations, and measurement of their thermal performances. The book addresses the fundamental theories and principles of heat transfer performance of heat exchangers and their applications and then applies them to the use of modern computing technology. Topics discussed include cell methods for condensers and evaporators, dispersion models for heat exchangers, experimental methods for the evaluation of heat exchanger performance, and thermal calculation algorithms for multi-stream heat exchangers and heat exchanger networks. - Includes MATLAB codes to illustrate how the technologies and methods discussed can be easily applied and developed - Analyses a range of different models, applications, and case studies in order to reveal more advanced solutions for industrial applications - Maintains a strong focus on the fundamental theories and principles of the heat transfer performance of heat exchangers and their applications for complex flow arrangement

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

598

Publisher

Academic Press

Published Date

ISBN 10

0128178957

ISBN 13

9780128178959

Hydrology

By: Wilfried Brutsaert

Write a review Read reviews Take a Quiz Solve Book Puzzle

Hydrology

By: Wilfried Brutsaert

Revised and updated, this classic textbook introduces the fundamental principles of hydrology for advanced students and professionals.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

623

Publisher

Cambridge University Press

Published Date

ISBN 10

1107135273

ISBN 13

9781107135277

Systemization in Foreign Language Teaching

Monitoring Content Progression

By: Wilfried Decoo

Write a review Read reviews Take a Quiz Solve Book Puzzle

Systemization in Foreign Language Teaching

Monitoring Content Progression

By: Wilfried Decoo

Foreign language learning is a progressive endeavor. Whatever the method, the learner should advance from one point to another, constantly improving. Growing proficiency entails growing language content. Content is complex, displaying many dimensions. Syllabus designers, textbook authors, and teachers often struggle with the monitoring of content. Computer-assisted systemization helps to handle it in a manageable framework. Besides inventorying content, it ensures more balanced selections, calculated progression, and controlled reiteration of previously learned material. It gauges the usability of authentic material in relation to the level attained. During the teaching process, it allows the instant selection of items needed for a communicative situation, focus on forms, or particular exercises. This book first describes the theoretical background for systemization, including a historical overview, with special attention to the Common European Framework and the new Profiles and Referentials. Next the practical steps for computer-assisted implementation with examples taken from French and English, but applicable to any language.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

396

Publisher

Routledge

Published Date

ISBN 10

1134233426

ISBN 13

9781134233427

Fundamentals of Business Intelligence

By: Wilfried Grossmann,Stefanie Rinderle-Ma

Write a review Read reviews Take a Quiz Solve Book Puzzle

Fundamentals of Business Intelligence

By: Wilfried Grossmann,Stefanie Rinderle-Ma

This book presents a comprehensive and systematic introduction to transforming process-oriented data into information about the underlying business process, which is essential for all kinds of decision-making. To that end, the authors develop step-by-step models and analytical tools for obtaining high-quality data structured in such a way that complex analytical tools can be applied. The main emphasis is on process mining and data mining techniques and the combination of these methods for process-oriented data. After a general introduction to the business intelligence (BI) process and its constituent tasks in chapter 1, chapter 2 discusses different approaches to modeling in BI applications. Chapter 3 is an overview and provides details of data provisioning, including a section on big data. Chapter 4 tackles data description, visualization, and reporting. Chapter 5 introduces data mining techniques for cross-sectional data. Different techniques for the analysis of temporal data are then detailed in Chapter 6. Subsequently, chapter 7 explains techniques for the analysis of process data, followed by the introduction of analysis techniques for multiple BI perspectives in chapter 8. The book closes with a summary and discussion in chapter 9. Throughout the book, (mostly open source) tools are recommended, described and applied; a more detailed survey on tools can be found in the appendix, and a detailed code for the solutions together with instructions on how to install the software used can be found on the accompanying website. Also, all concepts presented are illustrated and selected examples and exercises are provided. The book is suitable for graduate students in computer science, and the dedicated website with examples and solutions makes the book ideal as a textbook for a first course in business intelligence in computer science or business information systems. Additionally, practitioners and industrial developers who are interested in the concepts behind business intelligence will benefit from the clear explanations and many examples.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

361

Publisher

Springer

Published Date

ISBN 10

3662465310

ISBN 13

9783662465318

Stable Probability Measures on Euclidean Spaces and on Locally Compact Groups

Structural Properties and Limit Theorems

By: Wilfried Hazod,Eberhard Siebert

Write a review Read reviews Take a Quiz Solve Book Puzzle

Stable Probability Measures on Euclidean Spaces and on Locally Compact Groups

Structural Properties and Limit Theorems

By: Wilfried Hazod,Eberhard Siebert

Generalising classical concepts of probability theory, the investigation of operator (semi)-stable laws as possible limit distributions of operator-normalized sums of i.i.d. random variable on finite-dimensional vector space started in 1969. Currently, this theory is still in progress and promises interesting applications. Parallel to this, similar stability concepts for probabilities on groups were developed during recent decades. It turns out that the existence of suitable limit distributions has a strong impact on the structure of both the normalizing automorphisms and the underlying group. Indeed, investigations in limit laws led to contractable groups and - at least within the class of connected groups - to homogeneous groups, in particular to groups that are topologically isomorphic to a vector space. Moreover, it has been shown that (semi)-stable measures on groups have a vector space counterpart and vice versa. The purpose of this book is to describe the structure of limit laws and the limit behaviour of normalized i.i.d. random variables on groups and on finite-dimensional vector spaces from a common point of view. This will also shed a new light on the classical situation. Chapter 1 provides an introduction to stability problems on vector spaces. Chapter II is concerned with parallel investigations for homogeneous groups and in Chapter III the situation beyond homogeneous Lie groups is treated. Throughout, emphasis is laid on the description of features common to the group- and vector space situation. Chapter I can be understood by graduate students with some background knowledge in infinite divisibility. Readers of Chapters II and III are assumed to be familiar with basic techniques from probability theory on locally compact groups.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

668

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1402000405

ISBN 13

9781402000409

Liquid Chromatography

Mass Spectrometry, Second Edition

By: Wilfried M.A. Niessen

Write a review Read reviews Take a Quiz Solve Book Puzzle

Liquid Chromatography

Mass Spectrometry, Second Edition

By: Wilfried M.A. Niessen

This volume comprehensively relates developments, principles, and applications of combined liquid chromatography-mass spectrometry and other techniques such as capillary electrophoresis and supercritical fluid chromatography combined with mass spectrometry. It covers historical developments, currently important interfaces and technologies, and LC-MS applications in environmental analysis, pharmaceuticals and bioanalysis, and additional fields. It offers in-depth coverage of interfaces and technologies currently important in the laboratory, especially electrospray and APCI, contains an expanded applications section, and provides over 2200 references, tables, equations, and drawings.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

654

Publisher

CRC Press

Published Date

ISBN 10

0824719360

ISBN 13

9780824719364

Foundations of Computer Science

Potential-Theory-Cognition

By: Wilfried Brauer

Write a review Read reviews Take a Quiz Solve Book Puzzle

Foundations of Computer Science

Potential-Theory-Cognition

By: Wilfried Brauer

Content Description #Dedicated to Wilfried Brauer.#Includes bibliographical references and index.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

536

Publisher

Springer Science & Business Media

Published Date

ISBN 10

354063746X

ISBN 13

9783540637462

Modern Alchemy and the Philosopher's Stone

A Journey through the World of high Pressure

By: Wilfried B. Holzapfel,Charles W, Christoe

Write a review Read reviews Take a Quiz Solve Book Puzzle

Modern Alchemy and the Philosopher's Stone

A Journey through the World of high Pressure

By: Wilfried B. Holzapfel,Charles W, Christoe

While preparing to carve an unusual sculpture from a stump in his front yard, a professor of physics is interrupted by two first-year students at the university where he teaches. When the students ask him about his project, the professor describes the future sculpture as a three-dimensional representation of the way a sample of each chemical element reacts when high pressure is applied to it. That is not at all what the students were expecting to hear. They somewhat reluctantly agree to sign up for a consultation hour with the professor so that he can explain the concept in greater detail. When the professor describes his research in the area of high-pressure solid-state-physics as "modern alchemy", the students are hooked! One of them has been contemplating a career in science or technology, the other is planning to concentrate on liberal arts and philosophy. This appears to be a unique opportunity that offers something for each of them and a chance to expand their common knowledge and friendship. The professor and the students review the history of medieval alchemy as the basis for modern science. They compare the challenges faced by the ancient philosophers to the obstacles of modern scientists. He introduces the students to his version of a modern alchemist's "philosopher's stone", a device with which he is able to change the properties of the elements and make them take on different character. He leads this students on exploratory "journeys" across the Periodic Table of the Elements. They compare the different behavior and discover new relationships. The students converse about the "mystical" modern ideas that the professor introduces along the way; e.g., quantum chemistry and physics. He never resorts to formal, mathematical theory in their circumnavigation of the "world of high pressure". In the end, the students feel "enlightened" in the true alchemical sense, ready for their own journey into the modern world of science and philosophy.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

606

Publisher

epubli

Published Date

ISBN 10

3741869333

ISBN 13

9783741869334

Liquid Chromatography-Mass Spectrometry

By: Wilfried M.A. Niessen

Write a review Read reviews Take a Quiz Solve Book Puzzle

Liquid Chromatography-Mass Spectrometry

By: Wilfried M.A. Niessen

A constructive evaluation of the most significant developments in liquid chromatography-mass spectrometry (LC-MS) and its uses for quantitative bioanalysis and characterization for a diverse range of disciplines, Liquid Chromatography-Mass Spectrometry, Third Edition offers a well-rounded coverage of the latest technological developments and

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

629

Publisher

CRC Press

Published Date

ISBN 10

1420014544

ISBN 13

9781420014549

Diplomacy and International Law in Globalized Relations

By: Wilfried Bolewski

Write a review Read reviews Take a Quiz Solve Book Puzzle

Diplomacy and International Law in Globalized Relations

By: Wilfried Bolewski

Diplomacy is transforming and expanding its role as the method of interstate relations to a general instrument of communication among globalized societies. Adapting to globalization, the practice of diplomacy is shared by non-state participants, thus becoming privatized and popularized. This book offers a comprehensive understanding of the widening scope of public as well as private diplomacy and its normative framework. It features a practitioner’s inside view of diplomacy combined with interdisciplinary academic analysis.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

136

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3540711015

ISBN 13

9783540711018

Literature 1982, Part 2

By: Siegfried Böhme,Professor Dr. Walter Fricke,Herbert Hefele,Inge Heinrich,Wilfried Hofmann,Dietlinde Krahn,Vladimir R. Matas,Dr. Lutz D. Schmadel,Gert Zech

Write a review Read reviews Take a Quiz Solve Book Puzzle

Literature 1982, Part 2

By: Siegfried Böhme,Professor Dr. Walter Fricke,Herbert Hefele,Inge Heinrich,Wilfried Hofmann,Dietlinde Krahn,Vladimir R. Matas,Dr. Lutz D. Schmadel,Gert Zech

Astronomy and Astrophysics Abstracts, which has appeared in semi-annual volumes since 1969, is devoted to the recording, summarizing and indexing of astronomical publications throughout the world. It is prepared under the auspices of the International Astronomical Union (according to a resolution adopted at the 14th General Assembly in 1970). Astronomy and Astrophysics Abstracts aims to present a comprehensive documenta tion of literature in all fields of astronomy and astrophysics. Every effort will be made to ensure that the average time interval between the date of receipt of the original literature and publication of the abstracts will not exceed eight months. This time interval is near to that achieved by monthly abstracting journals, compared to which our system of accumu lating abstracts for about six months offers the advantage of greater convenience for the user. Volume 32 contains literature published in 1982 and received before February 11, 1983; some older literature which was received late and which is not recorded in earlier volumes is also included. We acknowledge with thanks contributions to this volume by Dr. J. Bou~a, Prague, who surveyed journals and publications in Czech and supplied us with abstracts in English.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

857

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3662123371

ISBN 13

9783662123379

Drug Discovery and Translational Medicine

Neurophysiological Techniques Provide a Holistic Approach to Saving Animals

By: Wilfried Dimpfel

Write a review Read reviews Take a Quiz Solve Book Puzzle

Drug Discovery and Translational Medicine

Neurophysiological Techniques Provide a Holistic Approach to Saving Animals

By: Wilfried Dimpfel

In collaboration with physicist and mathematician Hans Carlos Hofmann he developed the hard-software combination CATEEM® in 1989, which allows cartography of electric changes of the human brain in real time, not only for diagnostic purposes but also for therapy control in medicine and psychology. Recently, the technology has also been introduced into market research under the topic of “Neuromarketing”, where a combination of these brain maps “(enkephaloglyphs” obtained by Neurocode-Tracking) together with Eye-Tracking opens a new dimension of brain research. More than 100 publications proof the benefit of the technology in research and practice. The current book provides a representative overview on the use of neurophysiological methods during drug discovery aiming also at the need of saving animals. The holistic approach describes the feasibility of this goal and emphasizes the possibility to carry over parameters of drug effectiveness in rats to testing in humans. The use of identical parameters of drug induced changes of electric activity in rats and humans documents a very good example of translational medicine, which is not reached easily by use of any other method. In addition, large databases in rats and humans meanwhile allow yet unknown classifications of herbal medicines as well as elucidation of their mechanisms of action.

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

126

Publisher

BoD – Books on Demand

Published Date

ISBN 10

3738670394

ISBN 13

9783738670394

Book's by Wilfried Wang

Username

Password

Password again

Birthday

Email