To see the other types of publications on this topic, follow the link: Solute dynamics.

Books on the topic 'Solute dynamics'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 books for your research on the topic 'Solute dynamics.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse books on a wide variety of disciplines and organise your bibliography correctly.

1

Rumynin, Vyacheslav G. Overland Flow Dynamics and Solute Transport. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-21801-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Stadler, Daniele Claudio. Water and solute dynamics in frozen forest soils: Measurements and modelling. Swiss Federal Institute of Technology Zürich, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Rasmussen, T. C. Fluid flow and solute transport modeling through three-dimensional networks of variably saturated discrete fractures. Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

1942-, Kallay Nikola, ed. Interfacial dynamics. M. Dekker, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Apter, Michael J. Reversal theory: The dynamics of motivation, emotion, and personality. 2nd ed. Oneworld, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Sdvizhkov, Oleg, and Nikolay Macnev. Physics: a workshop in Excel. INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1014621.

Full text
Abstract:
In the workshop, the program codes of user-defined VBA Excel functions are presented; it is shown how these functions are used to solve typical problems of elementary physics on a computer. The textbook includes problems in kinematics, dynamics, statics, molecular kinetic theory, thermal phenomena and electrodynamics. 
 Each chapter includes: brief information on physics; code for one or more user functions and their description; step-by-step solutions to typical problems using user functions, illustrated with drawings of dialog boxes, fragments of worksheets, etc., made using screenshots
APA, Harvard, Vancouver, ISO, and other styles
7

Zhukova, Galina. Mathematical methods for management decisions. INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1084987.

Full text
Abstract:
The purpose of this manual is to help students to master basic concepts and research methods used in the theory of optimal control. The foundations of mathematical modeling. Systematic mathematical methods for managerial decision-making in linear, nonlinear and dynamic problems of optimal socio-economic processes. 
 Each section contains numerous examples of the application of these methods to solve applied problems. Much attention is paid to comparison of the proposed methods, a proper choice of study design problems, case studies and analysis of complex situations that arise in the stud
APA, Harvard, Vancouver, ISO, and other styles
8

Peker, Sümer M. Solid-liquid two phase flow. Elsevier, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Vol'vak, Sergey. Hydraulics. Workshop. INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1045068.

Full text
Abstract:
Study guide corresponds to the program discipline "Hydraulics". Consists of two parts and is for carrying out practical and laboratory works. 
 The first part provides material on the basics of the calculation of hydraulic machines, hydraulic drives of agricultural machinery, systems of land reclamation and hydraulic transport for development of skills of application of theoretical information to solve specific technical problems and development practices of hydraulic calculations.
 The second part contains material for the study of the methods and instruments for measuring pressure,
APA, Harvard, Vancouver, ISO, and other styles
10

Rumynin, Vyacheslav G. Overland Flow Dynamics and Solute Transport. Springer, 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
11

Rumynin, Vyacheslav G. Overland Flow Dynamics and Solute Transport. Springer London, Limited, 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
12

Rumynin, Vyacheslav G. G. Overland Flow Dynamics and Solute Transport. Springer, 2016.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
13

Stochastic Dynamics - Modeling Solute Transport in Porous Media. Elsevier, 2002. http://dx.doi.org/10.1016/s0167-5931(02)x8001-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Kulasiri, Don, and Wynand Verwoerd. Stochastic Dynamics. Modeling Solute Transport in Porous Media. Elsevier Science & Technology Books, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
15

Schuttelaars, Henk, Arnold Heemink, and Eric Deleersnijder. Mathematics of Marine Modelling: Water, Solute and Particle Dynamics in Estuaries and Shallow Seas. Springer International Publishing AG, 2022.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
16

Mathematics of Marine Modelling: Water, Solute and Particle Dynamics in Estuaries and Shallow Seas. Springer International Publishing AG, 2023.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
17

Stochastic Dynamics: Modeling Solute Transport in Porous Media (North-Holland Series in Applied Mathematics and Mechanics). North Holland, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
18

Kallay, Nikola. Interfacial Dynamics (Surfactant Science). CRC, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
19

Boudreau, Joseph F., and Eric S. Swanson. Continuum dynamics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198708636.003.0019.

Full text
Abstract:
The theory and application of a variety of methods to solve partial differential equations are introduced in this chapter. These methods rely on representing continuous quantities with discrete approximations. The resulting finite difference equations are solved using algorithms that stress different traits, such as stability or accuracy. The Crank-Nicolson method is described and extended to multidimensional partial differential equations via the technique of operator splitting. An application to the time-dependent Schrödinger equation, via scattering from a barrier, follows. Methods for solv
APA, Harvard, Vancouver, ISO, and other styles
20

Cowan, Martin E. Synthesis and characterization of high molecular weight water-soluble polymers to study the role of extensional viscosity in polymeric drag reduction. 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
21

Wetting and Spreading Dynamics, Second Edition. Taylor & Francis Group, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
22

Wetting and Spreading Dynamics Second Edition. Taylor & Francis Group, 2021.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
23

Starov, Victor M., and Manuel G. Velarde. Wetting and Spreading Dynamics, Second Edition. Taylor & Francis Group, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
24

Starov, Victor M., and Manuel G. Velarde. Wetting and Spreading Dynamics, Second Edition. Taylor & Francis Group, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
25

Zheng, Xiao Yun, ed. The Cultural Dynamics in Water Management from Ancient History to the Present Age. IWA Publishing, 2021. http://dx.doi.org/10.2166/9781789062045.

Full text
Abstract:
The Cultural Dynamics in Water Management from Ancient History to the Present Age focuses on exploring the idea of water culture and how water culture has been generated from water management and social life. It discusses the structure, attribute, type, and the dynamic mechanism of water culture theoretically. It also deals with its diversity and practice in water management with cases from twelve countries, geographically covering most continents of the world. This book is divided into five main sections which include the theoretical discussion of water culture, the historical water culture,
APA, Harvard, Vancouver, ISO, and other styles
26

Limebeer, D. J. N., and Matteo Massaro. Dynamics and Optimal Control of Road Vehicles. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198825715.001.0001.

Full text
Abstract:
The broad aim of this book is to provide a comprehensive coverage of the modelling and optimal control of both two‐ and four‐wheeled road vehicles. The first focus of this book is a review of classical mechanics and its use in building vehicle and tyre dynamic models. The second is nonlinear optimal control, which is used to solve a range of minimum‐time, minimum‐fuel, and track curvature reconstruction problems. As is known classically, all thismaterial is bound together by the calculus of variations and stationary principles. The treatment of this material is supplemented with a large number
APA, Harvard, Vancouver, ISO, and other styles
27

Apter, Michael J. Reversal Theory: The Dynamics of Motivation, Emotion and Personality. 2nd ed. Oneworld Publications, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
28

Jepsen, Henrik, Magnus Lundgren, Kai Monheim, and Hayley Walker, eds. Negotiating the Paris Agreement. Cambridge University Press, 2021. http://dx.doi.org/10.1017/9781108886246.

Full text
Abstract:
The 2015 Paris Agreement represents the culmination of years of intense negotiations under the United Nations Framework Convention on Climate Change. Designed to curb climate change, it was negotiated by almost 200 countries who came to the table with different backgrounds, perceptions and interests. As such, the Agreement represents a triumph for multilateralism in a period otherwise characterized by nationalist turns. How did countries reach the historical agreement, and what were the driving forces behind it? This book paints a full picture by providing and analysing multifaceted insider ac
APA, Harvard, Vancouver, ISO, and other styles
29

Lattman, Eaton E., Thomas D. Grant, and Edward H. Snell. Distinct Instrumental Approaches to SAXS. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199670871.003.0010.

Full text
Abstract:
There are more specialized applications of SAXS and SANS which require specific experimental considerations. This chapter covers size exclusion chromatography which has proven to be useful to study both soluble and membrane bound proteins allowing the study of samples that show time and concentration dependent dynamics. It also describes iime-resolved techniques for SAXS and in a few cases, SANS. Finally, with improved X-ray sources, detectors, sample handling, and compute power, the ability to perform SAXS data in high-throughput is available. This is discussed in enabling the use of SAXS to
APA, Harvard, Vancouver, ISO, and other styles
30

9th Russian conference “Computational Experiment in Aeroacoustics and Aerodynamics”. Keldysh Institute of Applied Mathematics, 2022. http://dx.doi.org/10.20948/ceaa-2022.

Full text
Abstract:
The book of includes abstracts of the ninth Russian conference "Computational experiment in aeroacoustics and aerodynamics" held September 26 - October 1, 2022. The organizer of the conference is the Keldysh Institute of Applied Mathematics of Russian Academy of Sciences. With the support of the of the World-Class Research Center “Supersonic” and the Baltic Federal University named after Immanuel Kant. The materials included in the book are devoted to modern approaches to numerical modeling of noise and the prospects for their application to solve actual industrial-oriented problems of aeroaco
APA, Harvard, Vancouver, ISO, and other styles
31

Gugliuzza, Paul R. Patent Trolls and Patent Litigation Reform. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199935352.013.15.

Full text
Abstract:
This chapter critically examines recent legislative proposals to reform patent litigation in the United States. It begins by providing background on the dynamics that are driving the calls for reform, including complaints about so-called patent trolls. It then reviews proposed bills that would, among other things, impose heightened pleading standards on plaintiffs, limit discovery, and create a presumption that the loser should pay the winner’s attorneys’ fees. After surveying many recent changes to patent law already made by the courts and by Congress in the America Invents Act, the chapter c
APA, Harvard, Vancouver, ISO, and other styles
32

Pattenden, Miles. Conclusion. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198797449.003.0008.

Full text
Abstract:
This chapter summarizes the findings of the work as a whole and suggests some of the more general implications of those findings: for reassessing the papacy’s identity as an oligarchic regime, for rethinking how political elites approach decision-making and manage risk, and for re-evaluating the efficiency of elective monarchy as a form of government. It reiterates that the papacy’s elective system created problems that were collective rather than merely individual. Moreover, the cardinals, collectively or individually, could not always solve either kind of problem to their own satisfaction. T
APA, Harvard, Vancouver, ISO, and other styles
33

Finck, Michèle. Subnational Authorities as Outsiders of EU Law. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198810896.003.0003.

Full text
Abstract:
This chapter focuses on the outsider narrative. The central dynamics of the narrative are highlighted through various domains of Union law. It will be seen that the Member States remain the sole masters of the Treaties, that have a status of sovereign equals. The outsider narrative indeed perceives Member States to be monolithic entities that benefit from special rights and obligations. This is underlined by the doctrine of purely internal situations. It is argued that references to ‘national identity’ in the TEU cannot be understood as a direct recognition of SNAs. It is shown that, even in i
APA, Harvard, Vancouver, ISO, and other styles
34

Succi, Sauro. Lattice Boltzmann Models for Microflows. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199592357.003.0029.

Full text
Abstract:
The Lattice Boltzmann method was originally devised as a computational alternative for the simulation of macroscopic flows, as described by the Navier–Stokes equations of continuum mechanics. In many respects, this still is the main place where it belongs today. Yet, in the past decade, LB has made proof of a largely unanticipated versatility across a broad spectrum of scales, from fully developed turbulence, to microfluidics, all the way down to nanoscale flows. Even though no systematic analogue of the Chapman–Enskog asymptotics is available in this beyond-hydro region (no guarantee), the fa
APA, Harvard, Vancouver, ISO, and other styles
35

Madliger, Christine L., Craig E. Franklin, Oliver P. Love, and Steven J. Cooke, eds. Conservation Physiology. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198843610.001.0001.

Full text
Abstract:
Conservation physiology is a rapidly expanding, multi-disciplinary field that uses physiological tools to characterize and solve conservation problems. This text provides a consolidated overview of the scope, purpose, and goals of conservation physiology, with a focus on animals. It outlines the major avenues by which conservation physiology is contributing to the monitoring, management, and restoration of animal populations and defines opportunities for growth in the field. By using a series of case studies, it illustrates how approaches from the conservation physiology toolbox tackle diverse
APA, Harvard, Vancouver, ISO, and other styles
36

Solid-Liquid Two Phase Flow. Elsevier Science, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
37

Buchler, Justin. Extreme Reversion Points and Party Leadership from 2011 through 2016. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190865580.003.0007.

Full text
Abstract:
When a majority party works on normal legislation, it faces a collective action problem of sincere voting, and must prevent legislators from centrist districts from voting against noncentrist legislation. From 2011 through 2016, though, Republican Party leadership faced a different challenge, and leaders were pitted against the extremists in their caucus. This occurred because of a change to the legislative agenda resulting from the combination of extreme polarization and divided government introduced by the 2010 election. With no incentive to work on normal legislation, the agenda did little
APA, Harvard, Vancouver, ISO, and other styles
38

Hediger, Vinzenz, Florian Hoof, Yvonne Zimmermann, and Scott Anthony. Films That Work Harder. Amsterdam University Press, 2023. http://dx.doi.org/10.5117/9789462986534.

Full text
Abstract:
What unleashed the forces of global capitalism which continue to shape the world that we live in? Economists and economic historians variously point to innovations in logistics and trade, the emergence of a new set of business-friendly values and the emergence of new forms of applied knowledge in early modernity to solve this riddle. This book focuses on the moving image as a factor of economic development. In a series of in-depth cases studies at the intersection of film and media studies, science and technology studies and economic and social history, Films That Work Harder: The Circulations
APA, Harvard, Vancouver, ISO, and other styles
39

Grob, Gerald N. A Moral/Ethical History of American Psychiatry. Edited by John Z. Sadler, K. W. M. Fulford, and Werdie (C W. ). van Staden. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780198732372.013.49.

Full text
Abstract:
This article examines the moral/ethical dimensions of psychiatric practice in the United States. It begins with a historical overview of American psychiatry, from the establishment of mental hospitals and asylums to the emergence of institutionalization and the theory of moral treatment. It then turns to a discussion of nineteenth-century initiatives calling for an end to dual responsibility and for the state to assume sole responsibility for persons with severe mental disorders. It also looks at the rise of dynamic psychiatry in the early twentieth century, along with the mental hygiene movem
APA, Harvard, Vancouver, ISO, and other styles
40

Horing, Norman J. Morgenstern. Q. M. Pictures; Heisenberg Equation; Linear Response; Superoperators and Non-Markovian Equations. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198791942.003.0003.

Full text
Abstract:
Three fundamental and equivalent mathematical frameworks (“pictures”) in which quantum theory can be lodged are exhibited and their relations and relative advantages/disadvantages are discussed: (1) The Schrödinger picture considers the dynamical development of the overall system state vector as a function of time relative to a fixed complete set of time-independent basis eigenstates; (2) The Heisenberg picture (convenient for the use of Green’s functions) embeds the dynamical development of the system in a time-dependent counter-rotation of the complete set of basis eigenstates relative to th
APA, Harvard, Vancouver, ISO, and other styles
41

Houle, Christian. Does Inequality Harm Economic Development and Democracy? Edited by Carol Lancaster and Nicolas van de Walle. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199845156.013.4.

Full text
Abstract:
This article examines whether economic inequality undermines economic development and democracy in the long run. After reviewing the literature on the effect of inequality on economic development and democracy, it considers three approaches that have been put forward to explain why inequality harms the economy and democracy: (1) the political economy approach, (2) the social unrest approach, and (3) the credit market imperfections approach. A complete data set on inequality is generated using three measures of inequality: the capital share data set of Ortega and Rodriguez (2006), the Gini coef
APA, Harvard, Vancouver, ISO, and other styles
42

Gilley, Jerry W. The Manager as Politician. Greenwood Publishing Group, Inc., 2005. http://dx.doi.org/10.5040/9798400681998.

Full text
Abstract:
Politics is a way of life in every organization. Like it or not, managers must develop political savvy in order to succeed as leaders; every interaction has political undertones that affect their performance in the workplace. As politicians, managers are called upon to bring together parties with different (and often competing) agendas, and to demonstrate the experience, capabilities, and qualities necessary to solve problems and make decisions in a timely fashion. As politicians, managers must be keenly aware of the human and organizational aspects of conflict—along with techniques to resolve
APA, Harvard, Vancouver, ISO, and other styles
43

Arthur, Richard T. W. Monads, Composition, and Force. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198812869.001.0001.

Full text
Abstract:
This book offers a fresh interpretation of Leibniz’s theory of substance, taking as starting point his claims that he introduced his monads to solve the problem of the composition of the continuum. It is argued that they can only perform this function if they are understood as requisites for each of the actual parts into which matter is divided, and as sources of the actions distinguishing and making actual these parts. Bodies are not composed of monads, but presuppose them for their reality; and motions are not composed of monadic states, but presuppose their tendencies to change and resist c
APA, Harvard, Vancouver, ISO, and other styles
44

Humphreys, Paul. Philosophical Papers. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780199334872.001.0001.

Full text
Abstract:
Paul Humphreys pioneered philosophical investigations into the methodological revolution begun by computer simulations. He has also made important contributions to the contemporary literature on emergence by developing the fusion account of diachronic emergence and its generalization, transformational emergence. He is the discoverer of what has come to be called “Humphreys” Paradox in probability theory and has also made influential contributions to the literature on probabilistic causality and scientific explanation. This collection contains fourteen of his previously published papers on topi
APA, Harvard, Vancouver, ISO, and other styles
45

Trinidad, Jose Eos. Subtle Webs. Oxford University PressNew York, NY, 2025. https://doi.org/10.1093/9780197786123.001.0001.

Full text
Abstract:
Abstract Subtle Webs provides an unprecedented behind-the-scenes look at how local organizations in Chicago, Philadelphia, and New York City have transformed data and worked with schools to solve the problem of dropping out. In the process, the book reveals how organizations outside schools have created an invisible infrastructure not only to affect local school districts but also to shape US education. The book argues that changes in a decentralized system happen less through top-down policy mandates or bottom-up social movements and more through “outside-in” initiatives of networked organiza
APA, Harvard, Vancouver, ISO, and other styles
46

Queiroz, Sabrina. Mapas Mentais - Um novo conceito. Brazil Publishing, 2020. http://dx.doi.org/10.31012/978-65-5861-148-6.

Full text
Abstract:
This manual was created with the main objective of providing a study option for students who have the need to grasp a large amount of content in a short time, besides allowing the teacher to pass the desired content in a more objective and visual way. The whole method developed in the research entitled "Mind Maps – A new concept" offers the student a significant means of study, and the teacher a more dynamic and effective form of teaching. Students which want to get a place at University or specific schools, for instance, need to learn a lot of content in a short time, which causes the need to
APA, Harvard, Vancouver, ISO, and other styles
47

Gurgenidze, Davit, and Givi Gavardashvili. Fundamentals of The Ecological-Economic Theory of Integrated Natural Resource Management. Georgian Technical University, 2022. http://dx.doi.org/10.36073/978-9941-28-869-2.

Full text
Abstract:
The main effective indicator of the use of natural resources is the natural capacity, which is determined by the volume of natural resources used and the final products. There are two types (levels) of natural capacity: Macro level - the level of the whole economy and the level of productivity. It is argued that the measurement of the rate of naturalness in dynamics may become one of the main criteria for the transition to solid development. We can distinguish three mechanisms for the implementation of environmental-economic policies: direct regulation (state influence); Economic stimulus (mar
APA, Harvard, Vancouver, ISO, and other styles
48

Thagard, Paul. Brain-Mind. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190678715.001.0001.

Full text
Abstract:
Minds enable people to perceive, imagine, solve problems, understand, learn, speak, reason, create, and be emotional and conscious. Competing explanations of how the mind works have identified it as soul, computer, brain, dynamical system, or social construction. This book explains minds in terms of interacting mechanisms operating at multiple levels, including the social, mental, neural, and molecular. Brain–Mind presents a unified, brain-based theory of cognition and emotion with applications to the most complex kinds of thinking, right up to consciousness and creativity. Unification comes f
APA, Harvard, Vancouver, ISO, and other styles
49

Rajeev, S. G. Fluid Mechanics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805021.001.0001.

Full text
Abstract:
Starting with a review of vector fields and their integral curves, the book presents the basic equations of the subject: Euler and Navier–Stokes. Some solutions are studied next: ideal flows using conformal transformations, viscous flows such as Couette and Stokes flow around a sphere, shocks in the Burgers equation. Prandtl’s boundary layer theory and the Blasius solution are presented. Rayleigh–Taylor instability is studied in analogy with the inverted pendulum, with a digression on Kapitza’s stabilization. The possibility of transients in a linearly stable system with a non-normal operator
APA, Harvard, Vancouver, ISO, and other styles
50

Dukert, Joseph M. Energy. Greenwood, 2008. http://dx.doi.org/10.5040/9798400646065.

Full text
Abstract:
Energy: We want it affordable, we want it available in ample quantities and from reliable sources, and we want it to be produced and used in ways that are safe and environmentally benign. In other words, we want plenty of energy too cheap to meter and with no impact on the environment. Ha! With a refreshing lack of bias, this book dissects all major sources of energy, from oil and coal to renewables like solar and wind power. In an easy, understandable style, energy expert Joseph Dukert explains how each fits into the overall global energy mix that powers everything from automobiles and applia
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!