This volume focuses on the role of sphingosine-1-phosphate (S1P) and its analogs in the induced sequestration of lymphocytes in secondary lymphoid organs or in the microenvironment of tissues involved in infection or autoimmune disease. Initial chapters define the pathways to understand S1P signaling. They cover the organization of signaling systems, the structural biology of the S1P1 receptor, and the chemical and genetic tools that are available and useful to explore this area of research and therapeutics. The later chapters highlight S1P and endothelial integrity, lymphocyte migration in the spleen, and S1P agonist in controlling immunopathologic manifestations of acute respiratory influenza virus infection (in the lung), and its accompanying cytokine storm as well as immunopathologic disease of the central nervous system, including the beginning of treatments in multiple sclerosis. One chapter reveals the possible involvement of other lipid molecules, their use for better understanding lipid signaling, and their potential in the modulation of immune responses.

Selig Kruger, once a dedicated Hitler Youth and committed Nazi soldier, confronts his past when he meets Eva, the woman whose life he spared nearly thirty years ago.

"She remembered learning from the bear man shortly after the incident that two German soldiers were killed by a third. Perhaps he was the one who took their lives. She believed that if she were ever to find out the answers, now was not the time to deluge him with her emotions and questions.

Her persistent gaze released a rush of memories flooding Selig's mind. In the secret space of his consciousness he saw a young, frightened girl huddling on the floor of an attic closet. Without even thinking about it Selig placed his index finger vertically against his lips. It was the same gesture Selig had performed twenty-eight years ago on the attic floor of a house in a Polish village.

'It's really you then?" Eva asked in astonishment.

Selig was stunned at the realization that this was, indeed, the same young girl whose life he had spared. The same girl whose destiny he had obsessed about over almost three decades."

This volume is the result of a symposium titled "Constructivist Approaches to Atypical Development and Developmental Psychopathology." What emerges from the work included here is a record of innovative extensions, refinements, and applications of the concept of constructivism. The chapters not only demonstrate the compatibility of constructivism with investigations of atypicality, but also the generation of a constructivist perspective for a wide array of problems in developmental psychology.

This volume is the result of a symposium titled "Constructivist Approaches to Atypical Development and Developmental Psychopathology." What emerges from the work included here is a record of innovative extensions, refinements, and applications of the concept of constructivism. The chapters not only demonstrate the compatibility of constructivism with investigations of atypicality, but also the generation of a constructivist perspective for a wide array of problems in developmental psychology.

This volume focuses on the role of sphingosine-1-phosphate (S1P) and its analogs in the induced sequestration of lymphocytes in secondary lymphoid organs or in the microenvironment of tissues involved in infection or autoimmune disease. Initial chapters define the pathways to understand S1P signaling. They cover the organization of signaling systems, the structural biology of the S1P1 receptor, and the chemical and genetic tools that are available and useful to explore this area of research and therapeutics. The later chapters highlight S1P and endothelial integrity, lymphocyte migration in the spleen, and S1P agonist in controlling immunopathologic manifestations of acute respiratory influenza virus infection (in the lung), and its accompanying cytokine storm as well as immunopathologic disease of the central nervous system, including the beginning of treatments in multiple sclerosis. One chapter reveals the possible involvement of other lipid molecules, their use for better understanding lipid signaling, and their potential in the modulation of immune responses.

Selig Kruger, once a dedicated Hitler Youth and committed Nazi soldier, confronts his past when he meets Eva, the woman whose life he spared nearly thirty years ago.

"She remembered learning from the bear man shortly after the incident that two German soldiers were killed by a third. Perhaps he was the one who took their lives. She believed that if she were ever to find out the answers, now was not the time to deluge him with her emotions and questions.

Her persistent gaze released a rush of memories flooding Selig's mind. In the secret space of his consciousness he saw a young, frightened girl huddling on the floor of an attic closet. Without even thinking about it Selig placed his index finger vertically against his lips. It was the same gesture Selig had performed twenty-eight years ago on the attic floor of a house in a Polish village.

'It's really you then?" Eva asked in astonishment.

Selig was stunned at the realization that this was, indeed, the same young girl whose life he had spared. The same girl whose destiny he had obsessed about over almost three decades."